HK1128391B - Natural plant extract composition for prevention and recovery of hyperlipidemia and stroke, natural tea containing the same as active ingredient and method for preparing the natural tea - Google Patents

Description

A composition of natural plant extract for preventing and recovering hyperlipidemia and apoplexy, natural tea containing the same, and its preparation method

Technical Field

The present invention relates to a composition of natural plant extracts for the prevention and recovery (recovery) of hyperlipidemia and stroke, natural tea containing the active ingredient and a preparation method thereof. In particular to a composition of natural plant extracts, for example, a composition of natural plant extracts containing Cassia tora (Cassia tora) extract and albizzia julibrissin (Albizziajulirissin) extract.

Background

Circulatory diseases have become the leading cause of death in the united states, europe and even korea, especially with a rapidly increasing mortality rate from cardiac ischemia (angina pectoris, myocardial infarction), arteriosclerosis and cerebrovascular disease. Increased blood cholesterol and lipid levels can lead to arteriosclerosis, a cardiovascular disease, and heart disease, stroke, etc. caused by the obstruction of blood flow by hypercholesterolemia. Modern human diet improves, resulting in excess nutrient intake beyond cellular needs, resulting in excessive cholesterol absorption. Low Density Lipoprotein (LDL) transports cholesterol to intima of blood vessels for deposition, and is converted into foam cells, lipid streaks, atheroma, etc., which decrease the ability of blood vessels to contract and relax, thereby causing coronary artery disease, stroke, peripheral vascular stenosis, hypertension, etc. The foam cells repeatedly undergo inflammatory reactions and cell proliferation, destroying or thickening the cell wall, causing platelets to adhere to the cell wall and causing thrombosis. Therefore, the blood supply of the heart is instantaneously blocked due to the stenosis of the blood vessel caused by arteriosclerosis and the total blockage of the blood vessel caused by thrombus, and the myocardial infarction is caused to die.

Therefore, prevention of cardiovascular disease is more important than treatment. Currently, many studies enter the field of preventive studies of hyperlipidemia as well as arteriosclerosis and stroke. Studies on soluble dietary fibers that can reduce cholesterol levels have been reported, but studies on natural plant extracts with low side effects have not been satisfactorily successful.

Therefore, the present inventors have studied and developed a food for reducing cholesterol levels by long-term administration (as described above, prevention of hyperlipidemia and stroke is more important than treatment), thereby preventing hyperlipidemia and arteriosclerosis, stroke, etc., and contributing to the treatment of the initial onset of these diseases. Therefore, the invention provides a natural plant extract which is convenient to drink and has remarkable fruit treatment effect.

Disclosure of Invention

The present invention aims to provide a composition of natural plant extracts effective for the recovery and prevention of hyperlipidemia and stroke, and natural tea containing the same as an active ingredient.

It is another object of the present invention to provide a composition of natural plant extracts for recovering and preventing hyperlipidemia and stroke, and a method for preparing natural tea containing the same as an active ingredient.

In order to accomplish the above objects, the present invention provides a composition comprising natural plant extracts of Cassia tora (Cassia tora) and Albizzia julibrissin (Albizzia julibrissin), which is effective in recovering and preventing hyperlipidemia and stroke.

In the composition, the weight ratio of the cassia tora extract to the albizzia julibrissin extract is 1: 0.3-0.5.

Albizzia julibrissin extract contains a large amount of quercetin.

The Cassia tora extract contains a large amount of obtusin (C)₁₈H₁₆O₇)。

The composition of natural plant extracts of the present invention may further comprise at least one extract selected from the group consisting of Schisandra chinensis (Schizandra chinensis) extract, Morus alba (Morus alba) extract and Glycyrrhiza uralensis (licorice) extract. The weight ratio of at least one plant extract selected from fructus Schisandrae extract, mulberry extract and Glycyrrhrizae radix extract to Albizzia julibrissin extract is 1: 0.1-2.

In addition to the above-mentioned plant extracts, the natural plant extracts of the present invention may also contain other natural plant extracts.

The natural plant extract composition of the present invention may comprise 20 to 50 wt% of a cassia tora extract, 10 to 70 wt% of an albizzia julibrissin extract, and 10 to 20 wt% of at least one natural plant extract selected from the group consisting of a schisandra extract, a mulberry extract and a licorice extract, in terms of weight ratio. The natural plant extract composition may also contain 20-50 wt% of Cassia tora extract, 10-65 wt% of Albizzia julibrissin extract, 5-20 wt% of Schisandra chinensis extract, 5-20 wt% of Morus alba extract, and 5-20 wt% of Glycyrrhiza uralensis extract.

The extraction solvent used in the present invention may be any conventional extraction solvent, and preferably the solvent is a mixed solvent of 50% ethanol and water (ratio 1: 1-3). The natural plant extract can be obtained by extracting at 80-100 deg.C for 1-8 hr, but is not limited thereto. Extracting each plant for 1-3 times, mixing the extracted components, and concentrating.

The Albizzia julibrissin extract is obtained from the bark, leaves, flowers, roots and seeds of Albizzia julibrissin.

The Albizzia julibrissin extract is prepared by washing Albizzia julibrissin, drying, pulverizing by physical method, and extracting with solvent. The extraction solvent may be any conventional extraction solvent, and preferably the solvent is a mixed solvent of 50% ethanol and water. The extract can be obtained by extracting at 80-100 deg.C for 1-8 hr, and evaporating to remove ethanol. The weight ratio of the albizia julibrissin extracting solvent to the crushed material is 1: 2-6.

The preparation method of the Cassia tora extract and the Albizzia julibrissin extract is the same. However, the amount of extraction solvent used and the ratio of the pulverized product of cassia tora are preferably 1: 1-4. The Cassia tora extract is obtained from the leaves, roots, stems and flowers of Cassia tora.

The preparation method of fructus Schisandrae extract, Mori fructus extract and Glycyrrhrizae radix extract is the same as that of Albizzia julibrissin extract.

The composition of natural plant extracts can be contained in various foods to prepare natural tea effective in recovering and preventing hyperlipidemia and stroke, and is particularly suitable for drinking water and convenient for administration.

The natural tea may contain general food additives including softeners, aromatics, preservatives and antioxidants.

In the natural tea effective in preventing hyperlipidemia and stroke, the composition of the natural plant extract of the present invention is preferably 14 to 40 wt% in the total amount of the tea.

The natural tea preferably contains antioxidant vitamins such as vitamin E.

In another aspect, the present invention provides a composition of natural plant extracts for restoring and preventing hyperlipidemia and a method for preparing natural tea containing the same. The method comprises the following steps: preparing a cassia tora extract; preparing an albizzia julibrissin extract; concentrating the above extracts and mixing. Wherein the extract is obtained by extracting a mixed solvent of 50% ethanol and water at 80-100 deg.C for 1-8 hr.

The method also comprises the steps of preparing the schisandra extract, preparing the mulberry extract or preparing the liquorice extract.

Detailed Description

The present invention is further described in detail as follows:

the present invention relates to a natural plant extract composition containing an albizzia julibrissin extract and a cassia tora extract and a natural tea containing the same, which are effective in recovering and preventing hyperlipidemia and stroke. The weight ratio of the albizzia julibrissin extract to the cassia tora extract contained in the inventive composition is preferably 1: 0.3-5.

Albizzia julibrissin Dura is also called "Boochenamu", "Sanyazanamu", "Sos-salbannamu", "Jagunamu", "Jagulnanng" (the korean is Jeju), "Zagusari", "Shoisalbab" (the korean is Youngnam), "Yahapsoo", "Haphonsoo" in Korean. It has double feather shaped compound leaves, leaves are stuck together at night and separated in the daytime, pink clusters grow along the branches, and fruits are bean shell shaped. It grows in southern parts of korea or mountainous areas with elevation of 500-700 m in central areas, and is planted around parks or houses in various areas. It is also known as Yahap or Haphon in korean because its leaves stick together at night. The bark contains alkaloid, tannin, and saponin; the leaf contains quercetin, the young leaf contains 200 mg% vitamin C, and the seed contains alkaloid. It also contains albizim oxytocin glycoside. The special component quercetin can thicken capillary vessels, is beneficial to cleaning skin and neutralizing toxin. According to the record of Tang materia Medica written in Sujing in 659 CE, albizia julibrissin can treat five kinds of hemorrhoids, harmonize five internal organs, stop vomiting, neutralize ethanol and iron nail toxicity.

The Albizzia julibrissin extract can be obtained from the bark, leaf, flower, root and seed of Albizzia julibrissin.

The albizzia julibrissin extract is obtained by washing, fully drying, crushing and solvent extraction. The extraction solvent may be any conventional solvent, and preferably a mixed solvent of 50% ethanol and water. Extracting the extract at 80-100 deg.C for 1-8 hr, concentrating, and evaporating to remove ethanol. The weight ratio of the extraction solvent to the crushed material is 1: 2-6.

The preparation method of the Cassia tora extract and the Albizzia julibrissin extract is the same. However, the amount of extraction solvent used and the ratio of the pulverized product of cassia tora are preferably 1: 1-4. The Cassia tora extract is obtained from the leaves, roots, stems and flowers of Cassia tora.

Semen Cassiae (Cassia semen) is the seed of Cassia tora L or Cassia tora L, and is used as digestant, intestinal antibacterial agent, diuretic or cathartic agent in Chinese medicine. According to the records of eastern medicine Baozao (Baozao national institute of oriental medicine, a comprehensive pharmaceutical works compiled by Heo Jun in the era of 1610 years (Joeon Dynasty)), boiled Cassia tora is drunk to benefit liver and improve eyesight. The following compounds were isolated and identified from cassia tora: anthraquinone compounds such as chrysophanol, emodin and physcion, and anthraquinone glycoside compounds such as cassia anthraquinone, cassia tora essence, auriclein, demethyl rubrofusarin, and rubrofusarin. Separating emodin, semen Cassiae anthraquinone, aurantioobcin (C) from plant seeds₁₇H₁₄O₇) And glycosides thereof, wherein the chromatogram confirms chrysophanol, chrysophanol anthrone, aloe-emodin and rhein, and the naphthatopopyron and glycoside compounds thereof such as rubrofusarin, demethyl rubrofusarin, rubrofusarin geniposide, isocoumarin cassia lactone and yellow pigment cassia pine are separated. The plant leaves also contain Kaempferia-3-diglycoside (C)₂₇H₃₀O₁₆·2H₂O)。

Cassia tora has the following effects: i) clearing liver and improving vision. ii) lowering blood pressure. In other words, when elevated, unstable, non-long acting antihypertensive agents sometimes damage the cardiovascular or cerebrovascular system, where coronary artery dilation can lower blood pressure. And the traditional Chinese medicine composition has no effect on long-term administration of essential hypertension, and paralysis caused by cerebral hemorrhage can cause hemiplegia, so that the hypertension state is continuous, and constipation also occurs. In this case, drinking boiled cassia tora together with taking appropriate prescription medicine can lower blood pressure and prevent constipation. iii) lowering cholesterol, e.g. preventing hypercholesterolemia caused by coronary arteriosclerosis.

The natural plant extract for recovering and preventing hyperlipidemia and stroke may further comprise other natural extracts, such as Schisandra chinensis extract, Morus alba extract or Glycyrrhiza uralensis extract.

The Schizandra chinensis bailon fruit contains organic acids, saponins and the like, and is well known to improve vision and may be effective in recovering fatigue.

Mulberry (Morus alba L) is the shoot of Morus alba Linne or other closely related plants (Moraceae). The shape is cylindrical, the lengths are different, side branches are sometimes connected, and the diameter reaches 5-15 mm. It is gray or grayish yellow in appearance, has yellow-brown sticky skin holes and petiole connecting marks, and also has fine longitudinal wrinkles. Mulberry is hard and not easy to break, and the thin bark of the broken part is mainly composed of xylem. The xylem is pale yellowish white and radial. Pith appears white to pale yellowish white. Its root bark contains 0.15% of mulberrin (C)₂₅H₂₆O₆) 0.2% of phellinus igniarius flavin (C)₂₅H₂₄O₆) 0.2% Cyclomori epirubicin (C)₂₅H₂₄O₆) 0.016% cyclophellinum flavin (C)₂₅H₂₂O₆) Scopoletin, umbelliferone, trigonelline, tannic acid, flavonoid sanguinin, triterpenoid amirin, sitosterol-d-glucoside, betulinic acid, adenine, betaine, palmitic acid and stearic acid.

The mulberry fruit mainly contains vitamin B1, vitamin B2, vitamin C and oil (25% in seeds and mainly linolenic acid), anthocyanin, non-saccharide anthocyanin, chrysanthemin, 100% saccharide (glucose, maltose, sucrose and fructose), organic acid (malic acid and citric acid), essential oil and isoquercitin.

Mulberry xylem contains 0.03% of flavonoid morin (C)₁₅H₁₀O₇) Dihydro morin (C)₁₅H₁₂O₅) Sanggenon (pentahydroxydiphenylketone, C)₁₃H₁₀O₆) And the like. The root bark can increase the concentration of blood isoniazid and maintain the concentration, so the treatment effect on tuberculosis is good. The bark and leaf extract has blood sugar lowering effect.

The liquorice contains mild components, is sweet in taste and contains a sweetening component glycyrrhizin; the liquorice shows antiallergic activity, NK cell activating activity and anti-inflammatory activity by promoting the release of interferon; it also has gastric acid secretion inhibiting, antiulcer, and gastric mucosa protecting effects. It also has disinfectant, antitussive, expectorant, and neutralizing effects. In addition, it can be used against various polar drugs or toxic drugs to treat toxicity caused by drugs with intense or toxic properties, and neutralize bacterial toxicity.

The natural plant extract may further comprise at least one extract selected from the group consisting of: fructus Schisandrae extract, mulberry extract or Glycyrrhrizae radix extract. The at least one extract is selected from schisandra extract, mulberry extract or liquorice extract, and the weight ratio of the at least one extract to the albizzia julibrissin extract is 1: 0.1-2. The composition of natural plant extracts may further comprise other natural plant extracts.

The natural plant extract comprises 20-50 wt% of Cassia tora extract, 10-70 wt% of Albizzia julibrissin extract, and 10-20 wt% of at least one extract selected from the group consisting of Schizandra chinensis extract, Morus alba extract and Glycyrrhiza uralensis extract.

The composition of natural plant extract is added into functional food, and the content of natural plant extract in the total amount of food is preferably 14-40%.

In another aspect, the present invention provides a method for preparing a natural plant extract for treating and preventing hyperlipidemia and stroke. The method comprises the following steps: preparing a cassia tora extract; preparing an albizzia julibrissin extract; concentrating and mixing the extracts; wherein the extract is obtained by extracting in a mixed solvent of 50% ethanol and water at 80-100 deg.C for 1-8 hr.

The method for preparing the composition of natural plant extracts may further comprise the step of preparing a schisandra extract, preparing a mulberry extract or preparing a licorice extract. The albizzia julibrissin extract and the cassia tora extract are preferably used after being concentrated.

As described above, in circulatory diseases, hypercholesterolemia and an increase in blood LDL concentration are important factors that cause arteriosclerosis and thus stroke. And prevention of hyperlipidemia and stroke is more important than treatment after onset, so if cholesterol content can be reduced by ingesting daily food, hyperlipidemia and stroke can be prevented, and also after hyperlipidemia and stroke occur, it can be treated by continuously drinking these foods.

The general method for measuring the decrease in cholesterol level includes analysis of decrease in total amount of cholesterol, LDL-cholesterol and triglyceride in serum, which is associated with hyperlipidemia, or analysis of increase in HDL-cholesterol, which is a factor inhibiting the increase in cholesterol level.

The present invention will be described in further detail by way of examples, which are provided to facilitate understanding of the present invention and are not intended to limit the scope of the invention.

Example 1 preparation of Albizzia julibrissin extract

The cortex Albizziae is washed, dried thoroughly, pulverized, 5g pulverized Albizziae is extracted with 130cc 50% ethanol and 330cc water at 95 deg.C for 6 hr, and concentrated to remove ethanol to obtain 300cc Albizziae extract, and the plant is extracted twice according to the above extraction method to obtain Albizziae extract. The three albizzia julibrissin extracts are combined and concentrated to 1/3 volumes, and 300cc albizzia julibrissin extract is obtained.

Examples2 preparing the Cassia tora extract

Cassia seed was washed, dried thoroughly, and pulverized, and 5g of pulverized Cassia was extracted by the same method as in example 1 to obtain 300cc of a concentrated extract.

Example 3 preparation of Schisandra chinensis extract

The leaves of Schisandra chinensis were washed, sufficiently dried and pulverized, and 5g of pulverized Schisandra chinensis was extracted by the same method as in example 1 to obtain 300cc of a concentrated extract.

Example 4 preparation of Mulberry extract

Mulberry was washed, sufficiently dried and pulverized, and 5g of the pulverized Mulberry was extracted by the same method as in example 1 to obtain 300cc of a concentrated extract.

Example 5 preparation of Glycyrrhiza extract

After washing, licorice was sufficiently dried and pulverized, and 5g of the pulverized licorice was extracted in the same manner as in example 1 to obtain 300cc of a concentrated extract.

Examples 6 to 10

The extracts prepared in examples 1 to 5 were mixed with the components shown in the following table 1 to obtain natural plant extract compositions.

TABLE 1 preparation of composition of natural plant extracts (% by weight)

	Hehuan tea	Cassia seed	Schisandra chinensis	Mulberry leaf	Licorice root, radix Glycyrrhizae
						Example 6	50	50
Example 7	30	40	10	10	10
						Example 8	30	30	20	10	10
Example 9	20	50	10	10	10
						Example 10	40	20	20	10	10

Examples 11-15 preparation of Natural tea (Unit:%)

TABLE 2

	Example 6 composition	Example 7 composition	Water (W)	Antioxidant vitamin E	Other food additives
						Example 11	2		Balancing	4	Small amount of
Example 12		1.5	Balancing	6	Small amount of
						Example 13	3		Balancing	3	Small amount of
Example 14	1.5		Balancing	6	Small amount of
						Example 15	4		Balancing	4	Small amount of

Test example 1

Test subject

50 hyperlipidemia patients (20 men, 30 women) were randomly divided into two groups of 25 persons each. One group was administered the composition of the present invention and the other group was administered a placebo.

1) One group was given a composition of the invention at an average age of 56.1 ± 2.8 years, 40.9% male (n ═ 9), another group was given a placebo at an average age of 57.1 ± 2.3, and 42.1% male (n ═ 8).

2) The height, weight, BNI and WHR of the two groups of subjects are similar, and the blood pressure has no obvious difference.

3) The proportion of continuous drinkers, of continuous smokers, of nutrient intake and stress experienced in the two groups of subjects did not differ significantly, but the proportion of healthy food was significantly higher (p < 0.05) in the group given placebo. Regardless of the time points before and after administration of the composition of the present invention or placebo, there were some differences between the two test groups in the drinking rate, the current rate of continuous smokers, the rate of nutrient intake, and the stress, and there were no significant differences in the details other than the intake of healthy food.

4) At the beginning of the test, there was no difference in the diet habit score and the eating frequency score between the two test groups. And the diet habit scores of both groups before and after administration of the inventive composition and placebo were similar. However, the placebo group was given a slight increase in feeding frequency, but there was no significant difference between the two groups.

Placebo

2.5g maltodextrin, 0.5g adjuncts were added to 200cc of water along with an edible pigment to make the placebo color similar to the natural tea of the present invention.

Test method

The natural tea of example 13 of the present invention and placebo were administered continuously for 2 months, and blood test and biochemical test were repeated for the first month and the second month after the test. In the test, subjects were admitted to drink 140cc of the composition of the present invention and placebo, respectively.

Blood was collected with a syringe and coagulated before and after administration of the extract of example 13 and placebo. The clots were centrifuged at 1000rpm, and serum was collected and tested for cholesterol levels.

The measurement of cholesterol level was performed by total cholesterol amount measurement (Boehringer Mannheim, Germany), HDL-cholesterol measurement (Boehringer Mannheim, Germany), and biochemical autoanalyzer (Hitachi 747, Japan) to measure the enzymatic reactions of Cholesterol Oxidase (CO), Cholesterol Esterase (CE), and Peroxidase (POD).

The test results are shown in table 3 below:

table 3:

(mg/dl)：

as can be seen from Table 3, serum triglycerides were reduced by 50mg in the group to which the natural tea of example 11 of the present invention was administered, and also by 17mg in the group to which the placebo was administered, which was small in comparison with the group to which the natural tea was administered.

As shown in Table 3, the serum cholesterol levels in the group to which the natural tea of example 11 was administered and the group to which the placebo was administered were continuously decreased in both months 1 and 2 after the administration. However, the serum cholesterol level was reduced 18-fold in the group given natural tea compared to the placebo group.

As shown in Table 3, the level of HDL-cholesterol, a high-cholesterol inhibitory factor, was slightly decreased 2 months after administration in the placebo group, whereas Apo A1 value was increased by 5.1mg in the natural tea group administered in example 11 of the present invention, Apo A1 being a typical apolipoprotein contained in HDL. Based on the high correlation between HDL-cholesterol and ApoA1 (correlation coefficient r 0.90146), an increase in Apo a1 can be considered as an increase in HDL-cholesterol.

LDL-cholesterol levels were decreased in both test groups, decreased at month 1 of the test and then increased in the placebo group, whereas they were continuously decreased in the group given the natural tea of the present invention. Apo B apolipoprotein in LDL-cholesterol was significantly reduced in both test groups, but was more greatly reduced in the group given native tea. The experiment shows that the administration of the natural tea of the present invention can reduce the low density lipoprotein level.

Test example 2: changes in blood glucose and other serum indices

According to the same method as in test example 1, the subjects were divided into group C to which natural tea was administered and group D to which placebo equivalent to test example 1 was administered. The inventive natural tea and placebo were administered to groups C and D, respectively, in the same manner as in test example 1.

Before and after administration of the natural tea of example 11 of the present invention and placebo, changes in fasting plasma glucose (FBS), glycated hemoglobin (HbAlc), Blood Urea Nitrogen (BUN), creatinine, aspartate Aminotransferase (AST) and glutamate pyruvate transaminase (ALT) were measured according to a conventional method. The test results are shown in table 4 below:

TABLE 4

As can be seen from table 4 above, FBS levels were decreased in both test groups compared to before administration, but were more significantly decreased in the group given natural tea.

The HbAlc levels decreased on average, but there was no significant difference between the two test groups.

It can also be seen from the table that both test groups had a decrease in Blood Urea Nitrogen (BUN) levels, with a slight decrease in creatine liver water average, but there was no significant difference between the groups and no significant change in AST and ALT levels.

As can be seen from the above test results, the natural tea provided by the present invention can reduce blood cholesterol levels, thereby preventing arteriosclerosis and stroke caused by an increase in cholesterol content. Meanwhile, continuous drinking can recover diseases in the early stage of disease onset. When prepared into a beverage, the beverage can be conveniently drunk at ordinary times, and can effectively prevent and treat hyperlipidemia and stroke.

The present invention has been described in terms of preferred embodiments for purposes of illustration, but those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims (10)

1. A composition of natural plant extracts for the recovery and prevention of hyperlipidemia and stroke, the composition comprising cassia tora extract and albizzia julibrissin extract in a weight ratio of 1: 0.3-5, wherein 50% ethanol and water are used in a 1:1-3, preparing the natural plant extract composition at the temperature of 80-100 ℃ for 1-8 hours, wherein the weight ratio of the mixed solvent to the crushed albizia julibrissin is 1:2-6, wherein the composition for preparing the natural extract comprises the steps of: extracting each plant 1-3 times, mixing the extracts, and concentrating the mixture before use.

2. The composition as claimed in claim 1, wherein the natural plant extract composition further comprises at least one selected from the group consisting of schizandra chinensis extract, mulberry extract and licorice extract, wherein the schizandra chinensis extract, the mulberry extract and the licorice extract are prepared in the same manner as the albizia julibrissin extract.

3. The composition according to claim 2, wherein the weight ratio of the at least one plant extract selected from the group consisting of schisandra extract, mulberry extract and licorice extract to albizzia julibrissin extract is 1: 0.1-2.

4. The composition of claim 2, wherein the composition of natural plant extracts comprises 20-50 wt% of cassia tora extract, 10-70 wt% of albizzia julibrissin extract, and 10-20 wt% of at least one natural plant extract selected from the group consisting of schizandra chinensis extract, mulberry extract, and licorice extract.

5. The composition of claim 2, wherein the composition of natural plant extracts comprises 20-50 wt% cassia tora extract, 10-65 wt% albizzia julibrissin extract, 5-20 wt% schisandra chinensis extract, 5-20 wt% mulberry extract and 5-20 wt% licorice extract.

6. The composition according to claim 1, wherein the albizzia julibrissin extract is obtained from the bark, leaves, flowers, roots and seeds of albizzia julibrissin.

7. A natural tea comprising the composition of the natural plant extract according to any one of claims 1 to 6 as an active ingredient.

8. The natural tea according to claim 7, further comprising an antioxidant vitamin.

9. The natural tea according to claim 7, wherein the composition comprises 4 to 40% of the natural plant extract based on the total weight of the natural tea.

10. A method for preparing a natural tea for the recovery and prevention of hyperlipidemia and stroke, comprising the steps of:

preparing a cassia tora extract;

preparing an albizzia julibrissin extract; concentrating and mixing the extracts;

wherein the solvent used to prepare these extracts is 50% ethanol with water in a ratio of 1:1-3, at 80-100 ℃ for 1-8 hours, wherein the weight ratio of the cassia tora extract to the albizzia julibrissin extract is 1: 0.3-5, wherein the weight ratio of the mixed solvent to the crushed silktree albizzia is 1: 2-6.