JP2017153770A - Pet bottle filled rice and its filling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide PET bottle filled rice and its filling method for solving problems in which consumption of rice is decreased by the trend toward the nuclear family and diversification of meals, a bag packing product of tens of kg is stored in a rice dispenser at home, and properly subdivided for use in a conventional circulation of rice, however the prolongation of preservation by small consumption makes oxidation advance to degrade taste and accelerate rice away, particularly, popular and tasty Japonica species have amylose contents lower in comparison with normal rice, and therefore are easily affected by moisture absorption blocking to thereby provide trouble in bottle drawing.MEANS FOR SOLVING THE PROBLEM: Rice is filled in a general square PET bottle along with dry nitrogen in order to enable small consumption and physical distribution, and it is stored in a refrigerator bottle case, and thereby taste deterioration is prevented and the small consumption is expanded. The filling of brand rice superior in taste and having low amylose is further provided with sachets such as desiccant and an oxidation inhibitor in order to prevent intra-refrigerator dew condensation, etc. The PET bottle with an ultraviolet ray prevention agent previously contained in a bottle body or a bandage film is used in order to prevent intra-refrigerator ultraviolet degradation. It is effective even for the vermination prevention of small circulation such as low pesticide brown rice.SELECTED DRAWING: None

Description

In order to construct a distribution form suitable for small-lot consumption that intends to expand rice consumption, the present invention is a distribution means with good taste with little deterioration that can be stored in a refrigerator for home use using a general-purpose PET bottle. It is to provide.

With the progress of the nuclear family and the diversification of meals, the number of rice-based meals has decreased and rice consumption has fallen. In the conventional rice distribution method, 10kg and 20kg bagging is stored in domestic rice bins, etc., and is used in small portions as needed. Inviting further away from the United States.
In addition, from the standpoint of logistics efficiency, air bags are provided with air holes so that they can be stacked in conventional bagging, which does not prevent oxidation during logistics and sacrifices the taste.
The method of distributing rice in the form of brown rice and polishing the rice at home is a method for directly preventing the oxidation of the surface of the rice, but rice polishing at home has not progressed due to the complexity of preparing a rice mill.
From the viewpoints of food safety and taste, the demand for rice with organic farming methods and low pesticides is increasing, but it is essential to prevent the growth of pests generated in brown rice derived from the cultivation method.
As a method for preventing small participation for families with declining birthrates, filling bottles has been attempted. A few attempts have been made, but it has not yet spread. The reason is that general-purpose PET bottles have a narrow caliber, stress concentration, and are easily clogged, and as it is, the repose angle of stored rice is large, and it is difficult to clog at the angle of the pet mouth. It is done. (Patent Documents 1-3)
In addition, it has been experimentally confirmed that when a PET bottle containing the filled rice is left in a refrigerator and stored, the PET bottle-filled rice is easily clogged and difficult to take out.
It has been confirmed that japonica-type glutinous rice, which has a good commercial value and has a good taste, is likely to be clogged, and is more likely to be prevented from being taken out of the bottle. See the specification of the present invention and experimental examples.

JP 09-262062 A JP 2012-254255 A JP 2001-168723 A

Journal of Powder Society, Vol.26 No.1, 27-32 (1989) http://kinkiagri.or.jp//ibrary/foods/koshihikarai.htm Applied Glycoscience 43 (1), 15-23, 1996 Journal of Japanese Society for Home Economics 54 (11), 889-897,2003

In order to increase the consumption of rice, a simple storage and distribution method is not required. There is a need for an economical method that enables easy and safe storage and packaging that can be adapted to small-lot consumption in line with the current consumption pattern accompanying the current declining birthrate and aging population. Using existing general-purpose PET bottles, divide them into bottles at a rice mill, ship them in a carton, distribute them, store them in a refrigerator door rack at each home, and build a system to take out a small amount each time they are used It is preferable to do. In order to construct this system, an invention that solves several problems is required.
Economically, general-purpose PET bottles are preferred, but the bottle mouth is small for use, and the packed rice is clogged due to stress concentration near the outlet, in other words, the filled rice is blocked due to blocking. . In order to disperse the stress concentration, it is preferable to use a bottle with a large mouth, but a bottle with a large mouth lacks versatility unlike a small-bore bottle that is widely used for beverages, and many round bottles are contained in a carton. There is a vacant space for transportation, which increases transportation costs. It is an indispensable task to eliminate clogging with square PET bottles for general-purpose small injection ports.
Branded rice, which is particularly delicious, has a high commercial value and is suitable for small-lot consumption. However, clogging at the exit is likely to occur, and small-lot consumption in plastic bottles has not been realized.
The conventional packaging form in the unit of several kilograms promotes the deterioration of taste due to oxidative deterioration due to long-term storage resulting in a small amount of consumption at home. A wide range of degradation measures are required to prevent UV degradation.

In order to improve the storage and distribution of small-sized rice consumption and increase consumption, it is best to build a system that fills general-purpose square-shaped PET bottles with rice and stores them in the refrigerator in view of the current consumption pattern. I thought that there was, and it came to solve various problems in realizing. The physical distribution and storage system of the present invention is suitable for the spread of small consumption suitable for aging with a declining birthrate and aging because it can take into account the processing method of filled rice that prevents oxidation of rice and does not degrade the taste.
In other words, it is desirable to fill the required plastic bottles immediately after milling,
The use of polished rice having a moisture content of 14% or more and less than 16% is a measure that the taste is not subject to environmental changes. This value is a general water content in polished rice and is an index that is not subject to environmental changes. Incidentally, if it is less than 14%, the milled rice tends to be cracked, and if it exceeds 16%, there is a possibility of inducing blocking at the time of removal.
The use of general-purpose square PET bottles, unlike round PET bottles, has the intention of reducing the empty space in cartons to transport and pack a dozen PET bottles together, and prevent empty space during transportation, Furthermore, by using beverage bottles with a large market, container prices have an economic advantage.
The PET bottle used in the present invention is a general-purpose square shape with a capacity of 2 liters. The outer diameter of the inlet port is the same as the outer diameter of the inlet cap, which is called the outer, and is 28 mm. The gradient is about 60 degrees.
Clogging of filled rice due to the use of a general-purpose PET bottle at the small-diameter inlet, and the difficulty of getting out of the filled rice is interpreted as blocking of the filled rice due to stress concentration at the small-diameter outlet, and the blocking depends on the humidity in the bottle. It has been found. One of the causes that hinders the popularization of small-bore consumer products using PET bottles is surprisingly simple but easy to understand. That is, it has been found that blocking of filled rice can be solved by maintaining an appropriate dry state. Non-patent literature indicates that polished rice has a surface wet state, and the angle of repose after immersion in water is markedly increased, but does not clearly indicate blocking prevention due to drying, and allows analogy of the present invention. Not what you want.
(Non-Patent Document 1-2)
By maintaining the dry state, it is possible to prevent condensation associated with storage in the refrigerator, and that is a central proposition in maintaining a small distribution and storage system that enables small consumption of polished rice, the present invention Is the heart of
In order to achieve a dry state commercially, it is preferable to use dry nitrogen at the time of filling small portions of filled rice into a PET bottle.
In addition, it has been found that branded rice with excellent taste is likely to be blocked and clogged because the so-called branded rice such as Koshihikari and Yumepirika has a low amylose content and is susceptible to moisture absorption. It can be explained scientifically with no contradiction. Since the system of the present invention can promote small-scale consumption of brand rice, the consumption can be further expanded.
Branded rice is characterized by being a japonica variety with an amylose content of less than 19%, and domestic branded rice such as Yumepirika or Fukuniko can reduce the transportation time in consideration of small consumption of metropolitan area consumption. It is an effective technique that prevents the accompanying deterioration in taste.
When filling these branded rice, since the blockage of taking out from the PET bottle affects the humidity more, it is a more preferable form to put a desiccant and / or antioxidant sachet in the PET bottle in advance. .
In addition, when the milled rice used is cultivated with pesticide-free, low-pesticide and organic cultivation, it is contradictory and is susceptible to pest generation and pest food damage during storage, but in order to maintain the suffocated state of the polished rice, It is an unexpected effect of the present invention that is not easily damaged.
There is an example of carbon dioxide sealed packaging devised by Professor Emeritus of Kyoto University as a method to preserve taste recently, but unlike the invention concept aimed at small consumption and logistics of the present invention, carbon dioxide is a general purpose gas on supply It cannot be said that it is not suitable for economy.
PET bottle rice sealed with dry nitrogen takes the form of being stored in the refrigerator door rack, but in the refrigerator, in order to keep the bactericidal effect in general, it is in an ultraviolet atmosphere, and storage requires measures to prevent ultraviolet degradation. It is said. Ultraviolet degradation is mainly due to oxidation degradation due to ultraviolet rays, and it has an unexpected effect that it is possible to simultaneously prevent oxidation degradation in the warehouse by enclosing nitrogen. Furthermore, in order to ensure thorough prevention of deterioration, a PET bottle main body resin part well known to those skilled in the art or a PET bottle in which an ultraviolet ray inhibitor is previously contained in a bandage film can be used.

    The present invention is a system for promoting small-scale consumption that takes into account consumption trends in order to increase consumption of rice, which continues to be sluggish, and is housed in a refrigerator door rack at home, and an empty space in a cardboard carton as a distribution means Is realized by using a 2-liter square PET bottle with a simple method for smooth removal and using dry nitrogen at the time of rice polishing. Yes. In order to promote small-lot consumption, a special device is not required, and a system that guarantees an economic effect is provided by a method generally used by those skilled in the art. In addition, the present invention brings about the maintenance of the most important taste for rice consumption by preventing oxidative degradation, which is optimal in terms of small consumption as a consumption trend.

  Next, preferred embodiments for carrying out the present invention will be described.

Containers and sample PET bottles were prepared for general-purpose beverages having an inlet diameter of 28 mm and a taper to the inlet of about 60 degrees.
The rice samples are plain Japanese rice from Tochigi, Japan fine (amylose content 18%, the same in parentheses below), Mie Prefecture Koshihikari (16-17%) as excellent rice, and JA Kitasorachi Yumepirika (15 %), Milky Queen (8%) as low amylose rice, and Hoshiyutaka (28%) from Saga Prefecture as high amylose rice, respectively, and polished rice. (For amylose content, see Non-Patent Documents 3 and 4)
Test method Two liters of polished rice was filled in a 2 liter pet bottle for general beverages, dried nitrogen passed through calcium chloride cake was inserted into the bottom of the filling with a long thin tube, nitrogen was sealed, and the cap was closed. The PET bottle-filled rice was stored in a refrigerator door rack. The refrigerator door rack was set to 6 ± 1 ° C. One week after storing in the refrigerator, the filled PET bottle was gently tilted 180 degrees and fixed on a tripod, the cap was opened, and the falling filled rice was received in a 180 ml lightweight cup. It was confirmed that 180 ml, which is the standard for small-bore consumption, was injected smoothly without stagnation in a stationary state without giving vibration or the like. Thereafter, the sample was returned to the refrigerator and weighed by the same operation 24 hours later and one day later. Repeated every 24 hours until 4 days later, the spilled state up to 1 liter of about half of the PET bottle was confirmed. For each sticky rice, three 2-liter filled rices were prepared and the results of the three were confirmed. The results are shown in Table 1.
(Comparative example) Filling and storing were carried out in the same manner as in Example, except that filling was carried out in an air atmosphere at room temperature without using dry nitrogen when filling glutinous rice, and the outflow was confirmed. The results are shown in Table 1.
Table 1. Examples showing examples
Rice used (Amylose content%) 1 week later 1 day later 2 days later 3 days later 4 days later
1 Sunny Japan (18) a ○ ○ ○ ○ ○
b ○ ○ ○ ○ ○
c ○ ○ ○ ○ ×
2 Koshihikari (16-17) a ○ ○ ○ ○ ○
b ○ ○ ○ ×
c ○ ○ ○ ×
3 Yumepirika (18) a ○ ○ ○ ×
b ○ ○ ○ ×
c ○ ○ ×
4 Milky Queen (8) a ○ ×
b ○ ×
c ○ ×
5 Hoshiyuka (28) a ○ ○ ○ ○ ○
b ○ ○ ○ ○ ○
c ○ ○ ○ ○ ○

Example 6
Except that there was a bottle that was clogged in the middle of Examples 1 to 4, except that the fine powder rice samples of Nihonbare, Koshihikari, Yumepirika, and Milky Queen were previously inserted with a silica gel powder desiccant bag at the bottom of the PET bottle. Filling, storage, and spilling were confirmed. All three samples confirmed smooth outflow after 1 week and up to 4 days later.

(Comparative Example 1)
Storage and outflow were confirmed in the same manner as in Example except that the rice was filled with glutinous rice without nitrogen filling. Sunny Japan, Koshihikari, Yumepirika, and Milky Queen all had spillage after storage for 1 week, and did not secure 180 ml.
(Comparative Example 2)
In the same manner as in Comparative Example 1, the used Hoshiyutaka was clogged because one of three bottles could not be injected 180 ml after one week. As a result of confirming the change with time of the two bottles that did not cause the blockage in the same manner as in the Example, one blockage occurred after another 4 days after one week, and 180 ml was not secured.

<Industrial usage>
The plastic bottle-filled rice suitable for small-bore consumption according to the present invention is excellent in economic efficiency that enables the producer to fill it with a simple filling method and enables conveyance with less space loss during distribution. Since retail sales at retail stores and vending machines are possible, handling of branded rice at convenience stores is facilitated, leading to increased sales and at the same time increasing consumption.
<Mass production processing, economy>
The present invention makes it possible to use PET bottles for general-purpose 2 liter beverages with large consumption, so it is economically suitable for the mass production of producers, and handling such as logistics and small-lot sales is extremely important. It is easy. The brand rice has a reasonable propensity to consume small amounts of branded rice, both in terms of consumers and prices, that is, it matches the current consumption trend, so it has the economy of being able to expand sales dramatically.

Claims (4)

Using milled rice with a moisture content of 14% or more and less than 16%, in a nitrogen atmosphere, the outside diameter of the PET bottle inlet is 28 mm, the inclination angle from the side wall of the bottle body to the bottle mouth, and the taper is 45 degrees or more and less than 70 degrees PET bottle filling rice characterized by filling in 2 liter PET bottle The rice-filled rice according to claim 1, wherein the polished rice or brown rice having a moisture content of 14% or more and less than 16% is non-pesticide, low pesticide and organically cultivated rice. 3. The plastic bottle-filled rice according to claim 1 or 2, wherein the polished rice or brown rice having a water content of 14% or more and less than 16% is a japonica seed having an amylose content of less than 19%. 4. The bottle-filled rice according to claim 1, wherein the japonica varieties having an amylose content of less than 19% are yumepirika or fluffy unwashed rice.