KR20050107353A - Rice coated with the extract from rhus verniciflua - Google Patents

Abstract

The present invention relates to a method for producing functional rice, and to prepare a lacquer extract so that the total flavonoid content is at least 30% (w / w) of the total solids, and then in advance in an aqueous solution at a concentration of 1 to 10% (w / v). Rice prepared by the method characterized in that the rice is coated with a lacquer extract by spraying the dried rice by spraying, and when the rice is cooked using the rice, the components of the lacquer extract coated on the rice are powerful antioxidants. It relates to a functional rice composition containing lacquer extract, characterized in that by ingesting such functional ingredients by eating rice to have the action and anti-cancer action to produce rice that can help health recovery and health promotion.

Description

RICE coated with the extract from Rhus verniciflua}

The present invention relates to a functional rice composition using the extract of the lacquer tree and to provide a functional rice composition that can be obtained by coating the extract of the lacquer tree with various pharmacological functions to the rice to obtain the pharmacological effect of the lacquer tree when ingesting it. Aim.

Sumac ( Rhus verniciflua STOKES) is a deciduous tree belonging to the family Sumac , and is native to China, and is mainly cultivated in Southeast Asia such as Korea, Japan, and China. Specifically, lacquer is used as a natural paint due to its durability, and because of its chemical resistance, lacquer can be used as a special exterior paint used for lightening of submarine optical cables of airplanes and ships. Moreover, oriental medicine has been used for a long time, and oriental medicine has been introduced in the treatment of internal tumors and women's menstrual disorders, gastrointestinal drugs, repellents, blood circulation and anti-aging folk remedies (Hota, M. 1989). World Useful Plant Dictionary, Common History (Japan) 910-2). In particular, in Korea, lacquer trees have been used for lacquer chickens, lacquer ducks, etc. (New Testament, Il-hoon Kim, Publisher: Namu, 1986). However, for those who are sensitive to lacquer, dermatitis and itching may be caused by very little contact with lacquer, and most people tend to be reluctant to make contact with lacquer. About 3 to 4 of them. Even after allergic to lacquer temporarily, the sensitivity is extremely high, and even a small amount of contact can cause symptoms of dermatitis.

The main component of the lacquer sap (Lac lacquer) is urushiol (Urushiol), its main purpose is used in lacquerware, and its appearance is a dark brown liquid, which dissolves well in organic solvents. The chemical structure is mainly composed of 15 to 17 carbon atoms in the side chain, and many unsaturated bonds exist. The main pharmacological effects of lacquer are known to be anti-cancer, antioxidant, hangover-relieving action (Food Science Journal, 31, 1997, 238-245), gastrointestinal disease, heart disease, arthritis, high blood pressure, diabetes, stroke, chronic fatigue, etc. Known. Despite these various pharmacological actions, it has been known that the commercial use is not due to allergic properties to the human body.

Up to now, lacquer tree is mainly in the form of hot water obtained by heating such as chicken, rabbit, duck, etc. In this case, side effects such as allergy after ingestion are caused by urushiol, an allergen component present in lacquer tree. There has been and has been eating it simply because it is good for the body. Development of a method that can be ingested without side effects while maintaining the pharmacological effects of sumac has been required for the public's health recovery and health promotion, and some technologies have been developed. The present inventors and the applicant have continued the research of the sumac until now.

In the production of functional rice, Kim Young-jin suggests a method for producing rice with enhanced collagen and monascus in Korean Patent Publication No. 10-2003-0063315, and Jung Il-soo has published Korean Patent Publication Nos. 10-2003-0086518 and 10-2003-0071740 Presented a method for producing black functional rice mixed with black soybeans and sesame in fermented black rice and a method for producing fermented coffee rice containing coffee in fermented rice, and Jincheon-gun has a safflower seed extract in Korean Patent 10-0398895. It proposes a method of manufacturing functional rice using, and Lee Sook-sook proposes a method of manufacturing rice with enhanced wormwood in the Republic of Korea Patent Publication 10-2004-0052945.

Therefore, the present invention provides a functional rice that can be easily ingested in the form of stock (rice, rice) while having the pharmacological effect of lacquer tree to help maintain health.

Sumac has a large amount of antioxidants. Among them, flavonoids such as fustin, phycetin, sulfuretin, butyne and butane can be exemplified (Korean J. Food Sci.Technol. 31 (3): 855-63 (1999), Korean J. Plant Res) 14 (3), 220-8 (2001), Food Sci. Biotechnol. 9 (3), 139-45 (2000). However, the lacquer tree contains a large amount of urushiol, which is known to have strong antioxidant activity and anticancer action, and thus has a disadvantage of inducing allergy by ingestion or skin contact (Korean J. Plant Res. 10 (3): 227-30 ( 1997)). Most studies aim to isolate and purify these specific flavonoids or to see their physiological activity by using organic solvent extracts of lacquer trees (Korean J. Food & Nutr. 14 (6), 527-). 31 (2001), Planta Med. 69: 990-4 (2003), Food Sci. Biotechnol. 9 (4): 204-8 (2000), Food and Chemical Toxicology 39: 229-37 (2001).

The Korean patent proposes a food using detox lacquer in application 10-1994-0000266, and the anti-cancer agent using urushiol is proposed in application 10-1997-0004193, and a method for removing toxicity of lacquer is disclosed in application 10-1999-0056704 , Application 10-2000-0031328, Application 10-2000-0055559, Application 10-2002-0019904, Application 10-2001-0028569, Application 10-2003-0071302. In addition, regarding the rice using the lacquer extract, the Korean patent application 10-2000-0011923 proposes a healthy rice prepared by making the lacquer extract and coating it on the rice, and the application 10-2001-0077144 also provides a simple lacquer extract. It only suggests a method of producing clean rice by impregnating with rice and drying. All of these patent applications propose a method of producing rice for health promotion by simply obtaining a lacquer extract by boiling water and then treating the lacquer without coating and impregnating it with rice or drying it.

In the present invention, manufacturing the lacquer extract does not cause allergy in the production of the lacquer extract and sprayed in the form of a liquid to the washed rice and dried as a property while the property of the extract is coated on the surface of the rice to use the rice If you want to provide a functional rice composition that can help to maintain the health and recovery when ingested so that the functional ingredients contained in the lacquer extract as it is in the rice.

The sumac tree was dried and made of sawdust to increase the extraction efficiency. Then, ethanol-containing solvent was added at a ratio of 3 to 10 times the weight, and heated and extracted at 50 to 90 ° C. for 3 to 24 hours. The solvent used for the extraction is 0 to 80% (v / v) of ethanol. When the concentration of ethanol exceeds 80% (v / v), it is not easy to remove the resin components soluble in ethanol. The ethanol concentration of the extractant should be 80% (v / v) or less to facilitate the removal of the components. The amount of solvent to be added is 3 to 10 times the weight of lacquer in consideration of the extraction efficiency and yield. As the amount of the solvent added increases, the extraction yield improves, but the time and energy required for evaporation of the solvent increase significantly and the efficiency of the process decreases. The extraction temperature is 50 ~ 90 ℃, which means that the extraction time should be very long when extracted at a low temperature below 50 ℃, and heat sensitive components are easily destroyed due to high temperature. The extraction time is 3 to 24 hours, which may be longer depending on the extraction yield and temperature desired, but 24 hours is sufficient for the efficiency of the production process.

After extraction, the solids were removed by filtration, and the filtrate was concentrated in vacuo to completely evaporate the solvent. Then, 1 to 10-fold alcoholic beverages were added to the weight of the solids, the solubles were dissolved, and the insoluble components were filtered out. The alcohol is soluble in the ethanol concentration of more than 95% (v / v) to redissolve it is water-soluble, but to remove the insoluble components in the alcohol. The main insoluble components are polysaccharides. Since the amount of alcohol added for re-dissolution should be an amount capable of dissolving soluble components, more than one multiple could dissolve most of the soluble components. The resulting solution is reconcentrated to evaporate the solvent, hexane is added to this solution about 1 time, mixed and filtered to remove the components dissolved in hexane. The most soluble components in hexane can be regarded as hydrophobic components such as urushiol. In this process, most of the urushiol components known as allergens are removed. Precipitate washed with hexane again add water 1 to 5 times the weight of the precipitate, mix and extract the components soluble in water by the process of extraction at 30 ~ 60 ℃ for more than 30 minutes. At the end of this process, the insolubles are removed and a yellow or burgundy solution is obtained. The composition of this solution is 7-13% (w / w), compared to 1.5-2.5% (w / w) of conventional lacquer water extracts based on flavonoids, according to the flavonoid analysis method of the Food Code. When analyzing fustine and phycetin, which are known as the main constituents of flavonoids, using HPLC, the content of fustine is 25-45% (w / w) and phycetin is 15-30% (w / w). . The difference between the method of food processing and the method of HPLC is that the method of food processing is generally used for the analysis of flavonoids in propolis, in which flavonoids of flavonoid-containing substances are generally measured, not the main components of the present invention, fustin and phycetin. As a result, the composition was significantly different from the HPLC method for quantifying a standard substance.

After adjusting the solution so that the solid content is 5-10% (w / v), the rice is already impregnated or sprayed so that 0.15-3% (w / w) is coated on the already washed rice to the weight of the dry rice. It is adsorbed on the surface to obtain a rice coated with the yellow lacquer extract of the present invention. The coating method of the extract on the rice can be various, and among them, the method of drying after immersion and the method of spraying with fine powder and drying at the same time are mainly available. However, the scope of the present invention is not limited by the coating method. When coating lacquer extract on rice, 0.15% or more by weight is the minimum concentration to see the pharmacological effects of lacquer extract when rice is consumed as rice, and the upper limit of 2% is too high. Or the color of the rice is so dark that it is negative for intake and economical. This means that in some cases adding an appropriate level of excess is not a problem.

Hereinafter, the present invention will be described in detail by way of examples. However, the scope of the present invention is not limited by the embodiment.

Example 1.

Extract 1000 ml of 50% alcohol by adding 100 ml of lacquer, filter and dry it in vacuo to completely evaporate the solvent, and then add 95.2% of alcohol to extract the insoluble components, and remove the solvent by evaporating again. 4.5 g of precipitate was obtained. 100 ml of hexane was added and washed, and 150 ml of water was further extracted. As a result, 120 ml of a wine-colored solution having a solid content of 9% was obtained. 1 g of the lacquer extract obtained by the process of the present invention was added to 70 g of rice (amount of air) to solids, and dried at 40 ° C. under vacuum to obtain a rice coated with a yellow surface.

Example 2.

As a result of examining the antioxidant degree of the rice obtained in Example 1, when the concentration of reducing the radicals of DPPH was coated as a control, the concentration of 1% of the control group was 100 times higher than that of the control group. It has a degree of antioxidant.

Example 3.

In the case of Example 2, water was added thereto, rice was cooked, and the results of the investigation of the antioxidant activity were also found to have 97 times the antioxidant degree of the control group. This means that in case of rice coated with lacquer extract, antioxidant capacity remains as it is.

Example 4.

As a result of investigating the growth of cancer cells by oral administration of mice coated with rice coated with the lacquer extract added in Example 1 to induce lung cancer, the growth of cancer cells was only 60% compared to the control group. It was found out.

Example 5.

As a result of feeding the coated rice of Example 1 to the rats causing dementia, the result was to find the maze at 45% shorter time than the control in the water maze test. As a result, the rice coated with the lacquer extract of the present invention was found to be used as a food for the treatment of dementia.

Example 6.

As a result of analyzing the extract obtained in Example 1 by the flavonoid analysis method of the propolis extract described in the Korea Food Code, the flavonoid content was 6.5% (w / w).

Example 7.

To 70 g of the already-extracted extract obtained in Example 1, 1 ml of the solids was added to 1 g, and the rice was adjusted, and rice was cooked in an electric rice cooker. As a result, rice coated with lacquer extract with yellow water on the surface of the grains of rice was obtained.

The present invention is to prepare the extract of the lacquer tree with pharmacological efficacy by coating it on rice and ingesting it, thereby providing a coating rice composition to fully exhibit the pharmacological effect of the lacquer tree by ingesting rice to cancer, dementia, etc. It can be used as a meal for patients who are suffering and can be very useful for health promotion and recovery of the people.

Claims (4)

Rice composition coated with sumac extract on the surface of rice by impregnation or spraying method. The composition of claim 1, wherein the content of the flavonoids contained in the lacquer extract is 50% (w / w) or more as the sum of the fustin and the pecetin. Method of producing lacquer rice by spraying or impregnating the surface of the rice with the lacquer extract in the concentration of 5 ~ 10% (w / v) in claim 1 Lacquer rice composition, characterized in that the lacquer extract coated on the surface of the rice in the claim 1 is 0.15 ~ 3% (w / w) of the weight of the rice on a solid basis.