HK1248467B

HK1248467B - Botanical disinfection composition, disinfectant and preparation method thereof

Info

Publication number: HK1248467B
Application number: HK18108200.9A
Authority: HK
Inventors: 张树清
Original assignee: 张树清
Priority date: 2016-12-07
Filing date: 2018-06-26
Publication date: 2021-03-05

Description

TECHNICAL FIELD

The present invention relates to the field of disinfectants, in particular to a botanical disinfection composition, disinfectant and preparation method thereof.

BACKGROUND

Materials used for botanical disinfection products are mainly substances having antimicrobial activities of organic compounds contained in secondary metabolites, such as terpenoids, alkaloids and phenolic compounds. Such compounds are secondary metabolites produced through self adjustment and self protection during long-term evolution under adaptive environment. It is generically recognized that such compounds can be used for disinfection and sterilization. Compared with conventional chemical synthetic disinfectants, the compounds especially have the advantages that various compounds contained in the botanical disinfectant can act on pathogenic microorganisms in a multi-target manner, and drug resistance is not liable to cause as compared with conventional chemical synthetic disinfectants; the compounds are completely biodegradable and are environmentally-friendly and safe; botanical materials are renewable resources, and completely meet the sustainable development requirements of human beings; the selected botanical sterilization materials can have strong target selectivity and are safe and harmless to non-target organisms; and botanical sterilization and disinfection products are generally mild in effect and less in irritability, and almost have no toxicity and side effect within dosage.

At present, domestic research and development on botanical antibacterial materials are generally concentrated on antibacterial and bacteriostatic actions, and particularly many research achievements in the respects of the antibacterial and bacteriostatic actions are achieved. However, no research that actually achieves the disinfection effect is obtained. Antibacterial & bacteriostatic actions and disinfection are two different concepts. Disinfection is a normative concept with specific connotation and refers to killing or removing pathogenic microorganisms from propagation media to the extent of harmlessness. The disinfection efficacy of the disinfection products needs to be certified through inspection of Technical Standard for Disinfection (2002). Although fruitful research results are achieved on botanical antibacterial materials in the field of pesticides application, research achievements are not in the same application field as sterilization and disinfection products for humans.

In general, three research and development ways exist for conventional botanical disinfection products for sterilization and disinfection: finished products made by using plant (or Chinese herbal medicine) crude extracts as the raw material; finished products made by using plant refine extracts, namely plant essential oil as the raw materials; and finished products made by using single plant extracts as the raw material. The botanical antibacterial materials having certain disinfection efficacy have provided some preliminary achievements. A precedent of a composition compounding Chinese herbal medicine crude extracts is used as an example: Chinese patent document ( CN101861883A ) discloses a botanical disinfectant and a preparation method thereof, the botanical disinfectant comprising the following raw materials in percentage by weight: 1-10% of fructus forsythiae, 5-20% of honeysuckles, 25-45% of licorice roots, 5-15% of rhizoma coptidis, 5-15% of cortex phellodendri, 1-10% of radix et rhizoma rhei, 1-10% of safflowers, 1-10% of cloves, 1-10% of radix paeoniae rubra and 1-10% of fineleaf schizonepeta herbs, and crushed materials are soaked in baijiu for 5-10 days. Such kind of composition is characterized in that the content of ethanol is nearly 50%, and is expressed as 49% or below (50% ethanol already has the ability of killing bacteria); and as shown in test reports, fetal bovine serum used in interferents is only 0.3%, indicating that the compound can only be used for secondary disinfection even in compliance with relevant regulations in the Technical Standards for Disinfection, having little significance in practical use. A precedent of a composition compounding essential oils as a disinfectant is used as an example: Chinese patent document ( CN102239893A ) discloses a bactericidal disinfectant made of plant essential oils, which is prepared from the following raw materials in percentage by weight: 0.3% of eucalyptus oil, 0.4% of tea tree oil, 0.3% of armoise oil, 0.5% of rosemary oil, 0.5% of bergamot oil, 0.5% of lemon oil, 0.7% of lavender oil, 0.2% of clove oil, 0.4% of thyme oil and the balance of a diluent. In the composition disclosed by the invention, essential oil accounts for 3.8% and the balance is the diluent. The ethanol is usually used as a diluent of essential oils, and such a high proportion of ethanol makes the composition insignificant in practical promotion. In addition, Chinese patent document ( CN103749563A ) discloses a composition disinfectant of plant essential oils, which comprises the following components in percentage by weight: 1% of peppermint oil, 0.5% of bay essential oil, 1.5% of eucalyptus essential oil, 1% of tangerine peel essential oil, 1% of juglandiphyllum essential oil, 3% of citric acid and the balanced of ethanol. The same as the previous example, the ethanol content of the compound is up to 90% or above. Due to high ethanol content of the two patent application compositions, it is impossible to determine the disinfection effect of essential oil components.

Wilson et al. Plant Disease, 1 January 1997, pages 204-210 describes an assay to determine antifungal activity in plant extracts and essential oils. Tea tree essential oil, niaouli essential oil, palmarosa essential oil and litsea cubeba essential oil were shown to individually inhibit spore germination of Botrytis cinerea.

Gustafson et al., Letters in Applied Microbiology, Vol. 26, No., 1 March 1998, pages 194-198 describes the effect of Tea tree oil (TTO) in stimulating autolysis in exponential and stationary phase cells of Escherichia coli.

Cox et al., Journal of Applied Microbiology, Vol. 88, No. 1, 1 January 2000, pages 170-175 describes the antimicrobial activity exhibited by essential oil of Melaleuca alternifolia (tea tree). Its mode of action against the Gram-negative bacterium Escherichia coli AG100, the Gram-positive bacterium Staphylococcus aureus NCTC 8325, and the yeast Candida albicans was investigated therein.

Hammer et al. Journal of Applied Microbiology, Vol. 86, No.6, 1 June 1999, pages 985-990 describes an investigation of the antimicrobial activity of 52 plant oils and extracts against Acinetobacter baumanii, Aeromonas veronii biogroup sobria, Candida albicans, Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae. Pseudomonas aeruginosa. Salmonella enterica subsp. enterica serotype typhimurium, Serratia marcescens and Staphylococcus aureus, using an agar dilution method.

Tahira et al., Pak. J. Bot, 43, 1 December 2011, pages 151-154 describes the antimicrobial properties of selected phenolic acids, such as eugenol, found in lemon mint essential oil. Hayes et al., Food and Chemical Toxicology, Vol. 41, No. 10, 1 October 2003, pages 1409-1416 describes a product containing 1% lemon myrtle oil which is described as having antimicrobial activity against a range of bacteria, yeast and mold.

Hongwu Wang et al, Chemistry and Biodiversity, Vol. 7, No. 1, 1 January 2010, pages 229-235 describes the antimicrobial activity of essential oils obtained from Litsea cubeba. Maple et al., Journal of Antimicrobial Chemotherapy, Vol. 29, No. 6, 1 June 1992, pages 661-668 describes the in-vitro antimicrobial activity of azelaic acid.

Carson et al., Clinical Microbiology Reviews, Vol. 19, No. 1, 1 January 2006, pages 50-62 describes the antimicrobial properties of Melaleuca alternifolia (tea tree) oil.

CN 102239893 describes a plant essential oil bactericidal disinfectant. The plant essential oil bactericidal disinfectant is prepared from the following raw materials in percentage by weight: 0.3 percent of eucalyptus oil, 0.4 percent of tea tree oil, 0.3 percent of armoise oil, 0.5 percent of rosemary oil, 0.5 percent of bergamot oil, 0.5 percent of lemon oil, 0.7 percent of lavender oil, 0.2 percent of clove oil, 0.4 percent of thyme oil, and the balance of diluent.

J M Swenson et al., Antimicrobial Agents and Chemotherapy, 1 December 1985, pages 807-811, describes the antimicrobial susceptibility of a number of Mycobacterium. In particular this document discloses the use of antibiotics in fighting Mycobacterium Chelonei.

The botanical disinfectants described in the patent applications have the following characteristics:

1. the preparation technology is simple and rough, for example, only essential oils and ethanol are used;
2. a substantial amount of organic diluents is used, so that the making cost is high, and practical use value does not exist;
3. the products are not effective in functions, the problem that the functions of main functional materials in the compounds are even not clear, exists, and obvious defects existing in the technology; and
4. the property advantages of botanical disinfection products fail cannot be shown due to heavy use of diluents (ethanol).

SUMMARY

Therefore, a technical problem to be solved in the present invention is to overcome the defects existing in the prior art that ethanol is used in a large amount with low practical use value and poor sterilizing effects while the acting time of disinfectants is long, and the present invention provides a botanical disinfection composition and a botanical disinfectant which are low in usage amount of ethanol, small in toxic and side effects, good in sterilizing effects and short in action time.

Another technical problem to be solved in the present invention is that preparation methods of existing disinfectants are complex and costly and causes serious environment pollution, and the present invention provides simple, low-cost and pollution-free methods for preparing the botanical disinfection composition and the botanical disinfectant.

Therefore, according to one aspect, the present application provides a botanical disinfection composition, comprising the following raw materials in parts by weight:

0.5-1.0 part of tea tree essential oil,
0.5-1.0 part of niaouli essential oil,
0.5-1.0 part of palmarosa essential oil,
0.5-1.0 part of lemon mint essential oil, and
0.3-0.8 part of lemon myrtle essential oil or litsea cubeba essential oil.

Preferably, the botanical disinfection composition comprises the following raw materials in parts by weight:

0.8 part of tea tree essential oil,
0.5 part of niaouli essential oil,
0.5 part of palmarosa essential oil,
0.5 part of lemon mint essential oil, and
0.5 part of lemon myrtle essential oil or litsea cubeba essential oil.

Preferably, the botanical disinfection composition further comprises 0.3-1.0 part of azelaic acid.

Preferably, the botanical disinfection composition further comprises 0.5 part of azelaic acid.

According to another aspect, the present application further provides a botanical disinfectant, comprising the botanical disinfection composition of the present invention, and further comprises 3.4-6.4 parts of Tween 80, 20-30 parts of ethanol, 4-6 parts of 1,2-propanediol, 0.03-0.05 part of ethylenediaminetetraacetic acid (EDTA) disodium salt, and water.

Preferably, the botanical disinfectant comprises the botanical disinfection composition of the present invention, and further comprises 3.5 parts of Tween 80, 30 parts of ethanol, 4 parts of 1,2-propanediol, 0.03 part of EDTA disodium salt, and water.

According to another aspect, the present invention provides a method for preparing the botanical disinfection composition, the method comprising: uniformly mixing tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil according to predetermined parts by weight.

Preferably, the method for preparing the botanical disinfection composition further comprises: mixing azelaic acid with ethanol in a weight ratio of 1:(5-15) to prepare an ethanolic solution of azelaic acid; and mixing the ethanolic solution of azelaic acid with tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil which are uniformly mixed.

According to another aspect, the present invention provides a method for preparing the botanical disinfectant, comprising:

(1) uniformly mixing tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil according to predetermined parts by weight to obtain an essential oil mixture;
(2) mixing azelaic acid with ethanol in a weight ratio of 1:(5-15) to prepare an ethanolic solution of azelaic acid;
(3) mixing Tween 80 with 1,2-propanediol to obtain an auxiliary agent;
(4) mixing the essential oil mixture with the auxiliary agent to obtain a first mixture;
(5) adding water into the first mixture and then adding EDTA disodium salt to prepare a second mixture;
(6) mixing the ethanolic solution of azelaic acid with the second mixture to obtain a third mixture; and
(7) mixing the remaining ethanol with the third mixture to prepare the botanical disinfectant.

(1) uniformly mixing tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil in required amounts to obtain an essential oil mixture;
(2) mixing azelaic acid with ethanol in a weight ratio of 1:(5-15) to prepare an ethanolic solution of azelaic acid;
(3) mixing Tween 80 with 1,2-propanediol to obtain an auxiliary agent;
(4) mixing the essential oil mixture with the auxiliary agent to obtain a first mixture;
(5) mixing the remaining ethanol with the first mixture to obtain a second mixture;
(6) mixing the ethanolic solution of azelaic acid with the second mixture to obtain a third mixture; and adding water into the third mixture and then adding EDTA disodium salt to prepare the botanical disinfectant; and
(7) adding water into the third mixture and then adding EDTA disodium salt to prepare the botanical disinfectant.

The technical scheme of the invention has the following advantages.

1. In the botanical disinfection composition provided by the invention, tea tree essential oil, which is famous for its sterilization effect, contains a high proportion of monoterpene alcohol, and monoterpene and terpene oxides thereof, niaouli essential oil contains a high proportion of terpene oxides and corresponding monoterpene, palmarosa essential oil and lemon mint essential oil contain a high proportion of monoterpene alcohol and terpene esters, and both lemon myrtle essential oil and litsea cubeba essential oil contain citral which not only can be used as a perfuming agent to regulate the fragrance of the disinfectant so as to make the disinfectant more acceptable to people but also have antibacterial effect to further improve the antibacterial effect of the disinfectant, making the disinfectant especially effective in killing mycobacterium chelonei subsp. abscessus and meet the requirements for disinfection. Monoterpene alcohol, monoterpene aldehyde, terpene oxides and terpene esters all have strong sterilization functions, and are free of toxic and side effects and environmentally-friendly because the raw materials are all extracted from plants, and main components of the essential oils synergistically interact with each other in the composition, so that multi-target bactericidal efficacy is formed, good sterilization effect is achieved, and resistant strains are not liable to generate. In addition, monoterpene contained in essential oils has high cell membrane permeability, so that active components can more quickly act on the objects to be disinfected and the disinfection time is shortened.
2. In the botanical disinfection composition provided by the invention, azelaic acid is also added to the essential oil mixture, and azelaic acid is a botanical product belonging to natural saturated linear dicarboxylic acid of organic acids. Azelaic acid has antibacterial properties with a bactericidal concentration of 1mol/L. In addition, because of low toxicity, azelaic acid can be used with various active matters to achieve synergism, and azelaic acid has high permeation promoting effects in an emulsion system, and can carry 40-60% of active matters into a cortex. Azelaic acid can rapidly carry bactericidal components in liquor to permeate through outer-layer cell membranes of pathogenic bacteria by the permeation promoting effects to achieve the effect of sterilization, and besides, the sterilization time is shortened.
3. In the botanical disinfectant provided by the invention, an emulgator namely Tween 80, an emulgator additive namely ethanol, and 1,2-propanediol, and EDTA disodium salt are added, so that the prepared disinfectant forms an emulsible system which is stable and has long shelf life. Even the disinfectant is stored for a long term, the sterilization effect of the disinfectant is not influenced. Besides, based on less usage amount of ethanol, the disinfection effect of the essential oil mixture is guaranteed.
4. In the method for preparing the botanical disinfectant provided by the invention, the emulgator, the emulgator additive, deionized water and a synergist are added in order into the plant essential oil mixture, so that the disinfectant is prepared. The preparation technology is simple and reasonable and requirements for production equipment are low, so that production cost of the disinfectant is further reduced.

DETAILED DESCRIPTION Embodiment 1

A botanical disinfection composition comprises the following raw materials: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil and 0.3g of lemon myrtle essential oil.

A method for preparing the disinfection composition comprises: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil and 0.3g of lemon myrtle essential oil are uniformly mixed.

Embodiment 2

A botanical disinfection composition comprises the following raw materials: 1.0g of tea tree essential oil, 0.5g of niaouli essential oil, 1.0g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.8g of litsea cubeba essential oil.

A method for preparing the disinfection composition comprises: 1.0g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil and 0.8g of litsea cubeba essential oil are uniformly mixed.

Embodiment 3

A botanical disinfection composition comprises the following raw materials: 0.8g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.5g of lemon myrtle essential oil.

A method for preparing the disinfection composition comprises: 0.8g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.5g of lemon myrtle essential oil are uniformly mixed.

Embodiment 4

A botanical disinfection composition comprises the following raw materials: 0.7g of tea tree essential oil, 0.8g of niaouli essential oil, 0.7g of palmarosa essential oil, 0.8g of lemon mint essential oil and 0.6g of litsea cubeba essential oil.

A method for preparing the disinfection composition comprises: 0.7g of tea tree essential oil, 0.8g of niaouli essential oil, 0.7g of palmarosa essential oil, 0.8g of lemon mint essential oil and 0.6g of litsea cubeba essential oil are uniformly mixed.

Embodiment 5

A botanical disinfection composition comprises the following raw materials: 1.0g of tea tree essential oil, 0.5g of niaouli essential oil, 1.0g of palmarosa essential oil, 0.5g of lemon mint essential oil, 0.8g of lemon myrtle essential oil and 0.3g of azelaic acid.

A method for preparing the disinfection composition comprises: 1.0g of tea tree essential oil, 0.5g of niaouli essential oil, 1.0g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.8g of lemon myrtle essential oil are uniformly mixed. 0.3g of azelaic acid is mixed with 3g of ethanol to prepare an ethanolic solution of azelaic acid; and the ethanolic solution of azelaic acid is mixed with tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil and lemon myrtle essential oil which are uniformly mixed.

Embodiment 6

A botanical disinfection composition comprises the following raw materials: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil, 0.3g of litsea cubeba essential oil and 1.0g of azelaic acid.

A method for preparing the disinfection composition comprises: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil and 0.3g of litsea cubeba essential oil are uniformly mixed. 1.0g of azelaic acid is mixed with 10g of ethanol to prepare an ethanolic solution of azelaic acid; and the ethanolic solution of azelaic acid is mixed with tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil and litsea cubeba essential oil which are uniformly mixed.

Embodiment 7

A botanical disinfection composition comprises the following raw materials: 0.8g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 0.5g of lemon mint essential oil, 0.5g of lemon myrtle essential oil and 0.5g of azelaic acid.

A method for preparing the disinfection composition comprises: 0.8g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.5g of lemon myrtle essential oil are uniformly mixed. 0.5g of azelaic acid is mixed with 5g of ethanol to prepare an ethanolic solution of azelaic acid; and the ethanolic solution of azelaic acid is mixed with tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil and lemon myrtle essential oil which are uniformly mixed.

Embodiment 8

A botanical disinfection composition comprises the following raw materials: 0.7g of tea tree essential oil, 0.8g of niaouli essential oil, 0.7g of palmarosa essential oil, 0.8g of lemon mint essential oil, 0.6g of litsea cubeba essential oil and 0.7g of azelaic acid.

A method for preparing the disinfection composition comprises: 0.7g of tea tree essential oil, 0.8g of niaouli essential oil, 0.7g of palmarosa essential oil, 0.8g of lemon mint essential oil and 0.6g of litsea cubeba essential oil are uniformly mixed. 0.7g of azelaic acid is mixed with 7g of ethanol to prepare an ethanolic solution of azelaic acid; and the ethanolic solution of azelaic acid is mixed with tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil and litsea cubeba essential oil which are uniformly mixed.

Embodiment 9

A botanical disinfectant comprises the following raw materials: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil, 0.3g of lemon myrtle essential oil, 1.0g of azelaic acid, 3.4g of Tween 80, 30g of ethanol, 4g of 1,2-propanediol, 0.05g of ethylenediaminetetraacetic acid (EDTA) disodium salt and water. A method for preparing the botanical disinfectant comprises:

(1) 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of palmarosa essential oil, 1.0g of lemon mint essential oil and 0.3g of lemon myrtle essential oil are mixed and then uniformly stirred for 20min to obtain an essential oil mixture, and the essential oil mixture is permitted to stand for later use;
(2) 1.0g of azelaic acid is mixed with 5.0g of ethanol to be dissolved to prepare an ethanolic solution of azelaic acid, and the ethanolic solution of azelaic acid is permitted to stand for later use;
(3) 3.4g of Tween 80 is mixed with 4g of 1,2-propanediol to obtain an auxiliary agent;
(4) the essential oil mixture is mixed with the auxiliary agent, and stirring is performed for 20min to obtain a first mixture;
(5) deionized water is slowly added into the first mixture, then 0.05g of EDTA disodium salt is added, and stirring is performed for 20min to prepare a second mixture;
(6) the ethanolic solution of azelaic acid is mixed with the second mixture, and stirring is performed for 20min to obtain a third mixture; and
(7) 25.0g of remaining ethanol is mixed with the third mixture in a manner that stirring is performed during adding of ethanol until all the ethanol is added, an obtained liquor is permitted to stand when the liquor becomes transparent, the liquor is pumped into a microfilter to be filtered, and filtrate is taken to obtain a finished product, the finished product is subjected to appearance detection and pH value detection and goes to the next procedure if qualified, and the qualified finished product is pumped into a storage tank for later use so as to obtain the botanical disinfectant.

Embodiment 10

A botanical disinfectant comprises the following raw materials: 1.0g of tea tree essential oil, 0.5g of niaouli essential oil, 1.0g of palmarosa essential oil, 0.5g of lemon mint essential oil, 0.8g of litsea cubeba essential oil, 0.3g of azelaic acid, 6.4g of Tween 80, 20g of ethanol, 6g of 1,2-propanediol, 0.03g of ethylenediaminetetraacetic acid (EDTA) disodium salt and water. A method for preparing the botanical disinfectant comprises:

(1) 1.0g of tea tree essential oil, 0.5g of niaouli essential oil, 1.0g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.8g of the litsea cubeba essential oil are mixed and then uniformly stirred for 20min to obtain an essential oil mixture, and the essential oil mixture is permitted to stand for later use;
(2) 0.3g of azelaic acid is mixed with 4.5g of ethanol to be dissolved to prepare an ethanolic solution of azelaic acid, and the ethanolic solution of azelaic acid is permitted to stand for later use;
(3) 6.4g of Tween 80 is mixed with 6g of 1,2-propanediol to obtain an auxiliary agent;
(4) the essential oil mixture is mixed with the auxiliary agent, and stirring is performed for 20min to obtain a first mixture;
(5) 15.5g of remaining ethanol is mixed with the first mixture in a manner that stirring is performed during adding of ethanol until all the ethanol is added to obtain a second mixture;
(6) the ethanolic solution of azelaic acid is mixed with the second mixture, and stirring is performed for 20min to obtain a third mixture; and
(7) water is slowly added into the third mixture, then 0.03g of EDTA disodium salt is added, stirring is performed for 20min, an obtained liquor is permitted to stand, the liquor is pumped into a microfilter to be filtered, and filtrate is taken to obtain a finished product, the finished product is subjected to appearance detection and pH value detection and goes into the next procedure is qualified, and the qualified finished product is pumped into a storage tank for later use so as to obtain the botanical disinfectant.

Embodiment 11

A botanical disinfectant comprises the following raw materials: 0.8g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 0.5g of lemon mint essential oil, 0.5g of lemon myrtle essential oil, 0.5g of azelaic acid, 3.5g of Tween 80, 30g of ethanol, 4g of 1,2-propanediol, 0.03g of ethylenediaminetetraacetic acid (EDTA) disodium salt and water.

A method for preparing the botanical disinfectant comprises:

(1) 0.8g of tea tree essential oil, 0.5g of niaouli essential oil, 0.5g of palmarosa essential oil, 0.5g of lemon mint essential oil and 0.5g of lemon myrtle essential oil are mixed and then uniformly stirred for 20min to obtain an essential oil mixture, and then the essential oil mixture is permitted to stand for later use;
(2) 0.5g of azelaic acid is mixed with 5.0g of ethanol to be dissolved to prepare an ethanolic solution of azelaic acid, and the ethanolic solution of azelaic acid is permitted to stand for later use;
(3) 3.5g of Tween 80 is mixed with 4g of 1,2-propanediol to obtain an auxiliary agent;
(4) the essential oil mixture is mixed with the auxiliary agent, and stirring is performed for 20min to obtain a first mixture;
(5) deionized water is slowly added into the first mixture, then 0.03g of EDTA disodium salt is added, and stirring is performed for 20min to prepare a second mixture;
(6) the ethanolic solution of azelaic acid is mixed with the second mixture, and stirring is performed for 20min to obtain a third mixture; and
(7) 25.0g of remaining ethanol is mixed with the third mixture in a manner that stirring is performed during adding of ethanol until all the ethanol is added, an obtained liquor is permitted to stand when the liquor becomes transparent, the liquor is pumped into a microfilter to be filtered, filtrate is taken to obtain a finished product, the finished product is subjected to appearance detection and pH value detection and goes into the next procedure if qualified, and the qualified finished product is pumped into a storage tank for later use so as to obtain the botanical disinfectant.

Embodiment 12

A botanical disinfectant comprises the following raw materials: 0.7g of tea tree essential oil, 0.8g of niaouli essential oil, 0.7g of palmarosa essential oil, 0.8g of lemon mint essential oil, 0.6g of litsea cubeba essential oil, 0.7g of azelaic acid, 5.0g of Tween 80, 25g of ethanol, 5g of 1,2-propanediol, 0.04g of ethylenediaminetetraacetic acid (EDTA) disodium salt and water. A method for preparing the botanical disinfectant comprises:

(1) 0.7g of tea tree essential oil, 0.8g of niaouli essential oil, 0.7g of palmarosa essential oil, 0.8g of lemon mint essential oil and 0.6g of litsea cubeba essential oil are mixed and then uniformly stirred for 20min to obtain an essential oil mixture, and the essential oil mixture is permitted to stand for later use;
(2) 0.7g of azelaic acid is mixed with 7.0g of ethanol to be dissolved to prepare an ethanolic solution of azelaic acid, and the ethanolic solution of azelaic acid is permitted to stand for later use;
(3) 5.0g of Tween 80 is mixed with 5g of 1,2-propanediol to obtain an auxiliary agent;
(4) the essential oil mixture is mixed with the auxiliary agent, and stirring is performed for 20min to obtain a first mixture;
(5) 18.0g of remaining ethanol is mixed with the first mixture in a manner that stirring is performed during adding of ethanol until all the ethanol is added to obtain a second mixture;
(6) the ethanolic solution of azelaic acid is mixed with the second mixture, and stirring is performed for 20min to obtain a third mixture; and
(7) water slowly added into the third mixture, then 0.04g of EDTA disodium salt is added, stirring is performed for 20min, an obtained liquor is permitted to stand, the liquor pumped into a microfilter to be filtered, and filtrate is taken to obtain a finished product, the finished product is subjected to appearance detection and pH value detection and goes into the next procedure is qualified, and the qualified finished product is pumped into a storage tank for later use so as to obtain the botanical disinfectant.

Comparative example 1

A botanical disinfection composition comprises the following raw materials: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of angelica essential oil, 1.0g of honeysuckle essential oil and 0.3g of lemon myrtle essential oil.

A method for preparing the disinfection composition comprises: 0.5g of tea tree essential oil, 1.0g of niaouli essential oil, 0.5g of angelica essential oil, 1.0g of honeysuckle essential oil and 0.3g of the lemon myrtle essential oil are uniformly mixed.

Comparative example 2

A botanical disinfection composition comprises the following raw materials: 0.5g of tea tree essential oil, 1.0g of bay essential oil, 0.5g of palmarosa essential oil, 1.0g of walnut leaf essential oil and 0.3g of litsea cubeba essential oil.

A method for preparing the disinfection composition comprises: 0.5g of tea tree essential oil, 1.0g of bay essential oil, 0.5g of palmarosa essential oil, 1.0g of walnut leaf essential oil and 0.3g of the litsea cubeba essential oil are uniformly mixed.

Comparative example 3

Tianjing Brand pure botanical disinfectant produced by Beijing Purui Huakang Biotechnology Co., Ltd. is taken as the comparative example 3.

Experimental example

The botanical disinfection compositions in the embodiments 1, 3, 5 and 7 and in the comparative examples 1-3 are applied to act on fifth-generation staphylococcus aureus (ATCC6538), fifth-generation escherichia coli (8099), fifth-generation candida albicans (ATCC10231), fifth-generation pseudomonas aeruginosa (ATCC15442) and fourth-generation mycobacterium chelonei subsp. abscessus (ATCC93326), and action times and average killing effects are shown in the table 1 below.

Table 1 Comparative results of action times and average killing effects of botanical disinfection compositions in embodiments 1 3, 5 and 7 and comparative examples 1-3 on different test organisms

Serial No.	Experimental example	Test organisms	Action time (min)	Average killing effect (%)
1	Embodiment 1	fifth-generation staphylococcus aureus (ATCC6538)	30	>99.998
	Embodiment 3		28	>99.999
	Embodiment 5		1.5	>99.998
	Embodiment 7		1	>99.999
	Comparative example 1		35	99.8
	Comparative example 2		35	99.7
	Comparative example 3		1	99.91
2.	Embodiment 1	fifth-generation escherichia coli (8099)	30	>99.997
	Embodiment 3		27	>99.999
	Embodiment 5		1	>99.997
	Embodiment 7		0.5	>99.999
	Comparative example 1		35	99.3
	Comparative example 2		35	99.4
	Comparative example 3		1	99.98
3	Embodiment 1	fifth-generation candida albicans (ATCC10231)	30	>99.98
	Embodiment 3		29	>99.99
	Embodiment 5		2	>99.97
	Embodiment 7		1.5	>99.99
	Comparative example 1		33	99.5
	Comparative example 2		33	99.6
	Comparative example 3		1	99.94
4.	Embodiment 1	fifth-generation pseudomonas aeruginosa (ATCC15442)	30	>99.997
	Embodiment 3		27	>99.999
	Embodiment 5		1	>99.998
	Embodiment 7		0.5	>99.999
	Comparative example 1		35	99.8
	Comparative example 2		35	99.7
	Comparative example 3		2	99.92
5	Embodiment 1	fourth-generation mycobacterium chelonei subsp. abscessus (ATCC93326)	15	>99.98
	Embodiment 3		13	>99.99
	Embodiment 5		1.5	>99.98
	Embodiment 7		1	>99.99
	Comparative example 1		18	99.3
	Comparative example 2		18	99.4
	Comparative example 3		3	99.94

As shown in Table 1, the disinfection compositions of the embodiments 1,3,5 and 7 are obviously better than those of the comparative examples 1-3 in respect of the average killing effects on the test organisms, with all the standard requirements met. After azelaic acid is added, the disinfection action time of the disinfection compositions is obviously shortened. Chemical synthetic disinfectants such as ethanol, benzalkonium bromide (bromogeramine), 1210 (fourth generation) and iodophor are adopted as comparative examples which are to be compared with the botanical disinfectant prepared according to the embodiment 11 of the present invention in terms of times needed for acting on different test organisms to meet the disinfection requirements. The results are as shown in Table 2 below.

Table 2 Comparative results of times needed by the chemical synthetic disinfectants in comparative examples and the disinfection composition in embodiment 11 to act on different test organisms to meet disinfection requirements

Serial No.	Experimental example	Concentration	Test organisms	Time needed for meeting disinfection requirements (min)
1.	Ethanol (alcohols)	70%	Escherichia coli	0.5.
			Pseudomonas auerginosa	1
			Staphylococcus aureus	5
			Mycobacterium tuberculosis	5
			Candida albicans	1
2	Benzalkonium bromide (bromogeramine) (quaternary ammonium salt)	1:1000	Escherichia coli	10
2		1:1000	Staphylococcus aureus	5
3	1210 (fourth generation) (quaternary ammonium salt)	250ppm	Staphylococcus aureus Escherichia coli	5
3	1210 (fourth generation) (quaternary ammonium salt)	500ppm	Pseudomonas auerginosa	5
4	Iodophor (halogens)	10mg/L	Common pathogenic bacteria	1
		40mg/L	Candida albicans	5
		1000mg/L	Mycobacterium chelonei subsp. Abscessus	1
5	Embodiment 11	Stock	Escherichia coli	0.5.
			Pseudomonas auerginosa	0.5.
			Staphylococcus aureus	1.
			Candida albicans	1.5
			Mycobacterium chelonei subsp. Abscessus	1.

As shown in Table 2, compared with common chemical synthetic disinfectants in comparative examples, the disinfectant of embodiment 11 has bactericidal effects on various bacteria, needs obviously less time for meeting disinfection requirements, and has notable effects particularly on staphylococcus aureus, pseudomonas auerginosa and mycobacterium chelonei subsp.abscessus.

In general, the disinfection composition and disinfectant made by the method provided by the invention can effectively kill common bacteria which can cause hospitals infection such as enteropathogenic bacteria, suppurative pathogens and pathogenic yeast, and can effectively kill mycobacterium chelonei. The disinfection composition and disinfectant disclosed by the invention can be widely used for medical sterilization, personal sanitary disinfection and family preventive disinfection.

Claims

A botanical disinfection composition, characterized by comprising the following raw materials in parts by weight:
0.5-1.0 part of tea tree essential oil,

0.5-1.0 part of niaouli essential oil,

0.5-1.0 part of palmarosa essential oil,

0.5-1.0 part of lemon mint essential oil, and

0.3-0.8 part of lemon myrtle essential oil or litsea cubeba essential oil.
The botanical disinfection composition of claim 1, characterized by comprising the following raw materials in parts by weight:
0.8 part of tea tree essential oil,

0.5 part of niaouli essential oil,

0.5 part of palmarosa essential oil,

0.5 part of lemon mint essential oil, and

0.5 part of lemon myrtle essential oil or litsea cubeba essential oil.
The botanical disinfection composition of claim 1 or 2, characterized by further comprising 0.3-1.0 part of azelaic acid.
The botanical disinfection composition of claim 3, characterized by further comprising 0.5 part of azelaic acid.
A botanical disinfectant, characterized by comprising the botanical disinfection composition of any one of claims 1-4, and further comprising 3.4-6.4 parts of Tween 80, 20-30 parts of ethanol, 4-6 parts of 1,2-propanediol, 0.03-0.05 part of ethylenediaminetetraacetic acid (EDTA) disodium salt, and water.
The botanical disinfectant of claim 5, characterized by comprising the botanical disinfection composition of any one of claims 1-4, and further comprising 3.5 parts of Tween 80, 30 parts of ethanol, 4 parts of 1,2-propanediol, 0.03 part of EDTA disodium salt, and water.
A method for preparing the botanical disinfection composition of any one of claims 1-4, comprising: uniformly mixing tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil according to predetermined parts by weight.
The method for preparing the botanical disinfection composition of claim 7, characterized by further comprising:
mixing azelaic acid with ethanol in a weight ratio of 1:(5-15) to prepare an ethanolic solution of azelaic acid; and

mixing the ethanolic solution of azelaic acid with tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil which are uniformly mixed.
A method for preparing the botanical disinfectant of claim 5 or 6, comprising:
(1) uniformly mixing tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil according to predetermined parts by weight to obtain an essential oil mixture;

(2) mixing azelaic acid with ethanol in a weight ratio of 1:(5-15) to prepare an ethanolic solution of azelaic acid;

(3) mixing Tween 80 with 1,2-propanediol to obtain an auxiliary agent;

(4) mixing the essential oil mixture with the auxiliary agent to obtain a first mixture;

(5) adding water into the first mixture and then adding EDTA disodium salt to prepare a second mixture;

(6) mixing the ethanolic solution of azelaic acid with the second mixture to obtain a third mixture; and

(7) mixing the remaining ethanol with the third mixture to prepare the botanical disinfectant.
A method for preparing the botanical disinfectant of claim 5 or 6, comprising the following steps of:
(1) uniformly mixing tea tree essential oil, niaouli essential oil, palmarosa essential oil, lemon mint essential oil, and lemon myrtle essential oil and/or litsea cubeba essential oil according to predetermined parts by weight to obtain an essential oil mixture;

(2) mixing azelaic acid with ethanol in a weight ratio of 1:(5-15) to prepare an ethanolic solution of azelaic acid;

(3) mixing Tween 80 with 1,2-propanediol to obtain an auxiliary agent;

(4) mixing the essential oil mixture with the auxiliary agent to obtain a first mixture;

(5) mixing the remaining ethanol with the first mixture to obtain a second mixture;

(6) mixing the ethanolic solution of azelaic acid with the second mixture to obtain a third mixture; and

(7) adding water into the third mixture and then adding EDTA disodium salt to prepare the botanical disinfectant.