KR20110019789A

KR20110019789A - Composition for coated rice composed of catechin compounds and beta-glucan

Info

Publication number: KR20110019789A
Application number: KR1020090077343A
Authority: KR
Inventors: 박상재
Original assignee: 박상재
Priority date: 2009-08-21
Filing date: 2009-08-21
Publication date: 2011-03-02

Abstract

PURPOSE: A coating composition for functional rice containing a catechin compound and a beta-glucan is provided to use a chaga mushroom extract and a green tea extract for offering the anti-cancer effect and the anti-obesity effect. CONSTITUTION: A coating composition for functional rice containing a catechin compound and a beta-glucan is obtained by the following steps: inserting a solvent selected from water, ethanol, and methanol to a natural material containing the catechin compound, and extracting before condensing; inserting ethyl acetate for obtaining an ethyl acetate layer, and drying to obtain power containing the high content of the catechin compound; extracting a chaga mushroom with the water, and condensing; obtaining the beta-glucan from the chaga mushroom extract, and drying to make powder ; mixing the catechin compound powder, and the chaga mushroom powder; and adding the water, alcohol, or their mixture.

Description

Composition for coated rice composed of catechin compounds and beta-glucan}

The present invention relates to a rice coating composition for imparting functionality such as anti-cancer, anti-diabetic, antioxidant, anti-aging by coating on rice.

Rice is a staple food in Southeast Asia, including Korea. In general, rice contains various nutrients, including vitamins, enzymes, and dietary fiber, but rice is preferred due to its taste. .

Catechin is one of the flavonoids that are mainly contained in green tea, gamvir, etc. In particular, green tea is known to contain various catechins, and these catechins have excellent anti-oxidant properties. Functionalities such as anti-diabetes, anti-obesity and anti-allergy are known. Green tea is known to contain catechins such as EGCG (Epigallo catechin gallate), EC (Epicatechin), ECG (Epicatechin gallate), and EGC (Epigallo catechin). .

Chaga is known to contain a large amount of beta glucan, and it grows by living on a living birch growing in the region of 38 degrees north latitude, and when it is grown for more than 10 years, it is known to show excellent anticancer effect. have. Chaga is different from other mushrooms that die and rot in a decaying tree. However, chaga is parasitic on a living tree and sucks and grows the sap of the tree, eventually causing the death of birch. Is said to be superior to any mushroom. In addition, chaga extract contains more than 20 to 50 kinds of trace ingredients, including ergosterol, it shows an excellent effect as an anticancer material.

Coated rice has been developed in Korea since 2000. Korean Patent Application No. 10-2000-0051208 proposes a rice coated with a natural functional pigment, and 10-2001-0056115 proposes a coated rice containing bokbunja extract. 10-2001-030914 proposes coated rice containing plum extract, and 10-2006-0053730 presents coated rice containing seaweed extract, and 10-2003-0018484 provides deep ocean water. A coating pair is presented. These rice are all differentiated in terms of the composition of the material to be coated, and based on the general process in terms of the method of coating.

The coating method of the rice is widely known, such as washing and immersing the rice in the extract and then drying it, and drying the washed rice and spraying the extract while inducing coating and drying at the same time. This method is generally a universal method used for coating purposes in addition to rice.

Therefore, in order to have a functional coating rice has the greatest effect on the composition of the coating, to propose a functional rice coating composition of the present invention based on this.

Coated rice should be formulated to coat a small amount of the coating liquid on the rice to sufficiently exhibit the functionality of the coating liquid while taking rice. However, most of the coated rice so far has used a simple extract or water with a different composition of minerals, and it has a limit to become a highly functional coated rice due to such condensed milk. Therefore, in order to have a countermeasure effect against modern diseases such as anti-cancer, antioxidant, anti-diabetic and anti-obesity, it was necessary to develop a high functional coating composition. Chaga mushroom extract as a main component to propose a composition for rice coating having the efficacy of antioxidant, anti-aging, anti-cancer, anti-diabetic, anti-obesity.

In preparing a functional rice coating composition containing catechin and beta glucan, a green tea extract is prepared and fractionated using a solvent to prepare a high catechin-containing green tea extract having a catechin content of 70% or more by weight, and chaga mushroom. In preparing the extract, water was added to chaga and extracted at 80 degrees Celsius or less to obtain an extract, which was then concentrated at 40 degrees Celsius or less to make a high concentration concentrate, and alcohol was added thereto to recover the precipitated beta glucan and then The high catechin green tea extract is added to 15 to 25% based on the solid content, dissolved and then the total solid content is 5 to 15% to obtain a coating rice composition.

The coating rice composition of the present invention contains a large amount of catechins, and simultaneously contains beta glucan derived from chaga, thus coating the functionalities such as anti-cancer, antioxidant, anti-aging, anti-obesity, anti-diabetic, etc. that these functional substances have Ingested rice can be easily and continuously enjoyed to maintain the health, recovery and prevention and treatment of diseases.

Green tea contains a large amount of catechin compounds as physiologically active substances, and these compounds are composed of EGCG (Epigallo catechin gallate), EC (Epicatechin), ECG (Epicatechin gallate), and EGC (Epigallo catechin). It is known that the content of is highest. Gambir is also known to contain catechin and epicatechin, unlike green tea.

Generally, when green tea or gamvir is extracted as water, alcohol or a mixture thereof as a solvent, it is known that 20 to 40% of solid content is extracted based on dried green tea. The content of catechin compound in this extract is low, 10-20% (w / w). Therefore, increasing the content of the catechin compound, which is a highly functional substance, is a necessary process in order to secure the functionality of the coated rice in consideration of the amount of the coating liquid to be coated on the surface of the rice. In the present invention, a fractionation process using a solvent was used to increase the content of the catechin compound. Hereinafter, the manufacturing process of the high catechin-containing extract will be described in detail.

Dry green tea or gamvir to make the water content less than 5% (w / w), add extraction solvent 10-20 times, and extract at 90 degrees Celsius or more. The solvent for extraction consists of water, ethanol, methanol and one of its mixtures.The amount added is 10-20 times based on the weight of green tea, but less than 10 times. In case of using more than 20 times, it is inconvenient to use an excessive amount of solvent. The extraction temperature should be over 90 degrees Celsius so that the contents can be extracted sufficiently. Obtain the primary extract, add water 5 to 10 times to the remaining green tea leaves, and extract the secondary and combine it with the primary extract to maximize the solids content of the extract. The resulting extract is concentrated in vacuo to evaporate the solvent. Concentrate until the volume of the extract is three times the weight of green tea, adjust the solid content to 5-15% (w / v), and then fractionate ethyl acetate in a volume ratio of 1: 1 to 2 for fractionation of the catechin compound. After adding the mixture, the layers were separated, and the ethyl acetate layer was recovered to recover a layer containing a large amount of the catechin compound. The solvent is evaporated to complete removal to yield a high catechin extract. The catechin content in this extract is 70% (w / w) or more, about 3 to 5 times higher than the amount of catechin compound in the extract before fractionation.

Chaga is finely chopped and powdered and water, alcohol or a mixture thereof is added thereto, followed by extraction at 80 degrees Celsius or lower to obtain an extract, which is then concentrated at 40 degrees Celsius or lower to make a high concentration solution. To recover the beta glucan precipitated by adding 2 to 3 times the alcohol in a volume ratio, and then dried to obtain a high concentration of beta glucan in powder form, it was added to the 15% to 30% based on the solid content of the high catechin green tea extract, warmed After dissolving, the total solid content is adjusted to 5 to 15% (w / v) to adjust the composition for rice coating containing the high catechin compound of the present invention.

Hereinafter, the manufacturing process of the rice coating composition of the present invention will be described in detail as an embodiment. However, the following examples do not limit the scope of the present invention.

Example 1 Preparation of Coating Liquid and Coated Rice

13L of ethanol aqueous solution of 10% (v / v) was added to 1 Kg of green tea dried matter, and heated to boiling until reflux extraction for 3 hours. The extract was taken, and 7L of water was added again to the green tea foil, which was extracted for 3 hours while boiling, and the mixture was filtered to obtain 18.8L of the extract. This was concentrated to give 2.7 L of a concentrate having a solid content of 11% (w / v). 3L of ethyl acetate was added thereto, mixed, and the mixture was left to separate layers. The upper ethyl acetate layer was recovered, and 5 L of ethyl acetate was added to the water layer, mixed, and the layers were separated and the ethyl acetate layer was recovered. The purity of the catechin compound in this fraction was 83% (w / w) when analyzed according to the chacatechin assay in the Food Additives Code.

Chaga is purchased from Russia, chopped, and then prepared, 1Kg, 15L of water is added to it, and extracted for 5 hours at 60 degrees Celsius, an extract is obtained. Got. This was concentrated in vacuo to give 259 g in solids and 1.2 L in volume. 2.5L of ethanol was added thereto, mixed well, and left to recover to settle out and settle to 230g. The dried product was analyzed by beta glucan using Megazyme Beta Glucan Analysis Kit and found to be 42% (w / w).

The green tea extract and chaga extract obtained above were mixed in a ratio of 3: 1 based on powder to make a total of 80 g, which was added to 720 ml of 10% (v / v) ethanol aqueous solution and completely dissolved. It was coated by the method of washing the white rice Anseong acid and then immersed in 8kg white rice and dried.

Example 2. Comparison of Antioxidant Activity

In Example 1, the antioxidant activity of the green tea extract and the fraction obtained by fractionating the extract were compared. Antioxidant activity was measured using DPPH (2,2-Diphenyl-1-picrylhydrazyl). Table 1 shows the value of IC ₅₀ as the radical inhibitory ability.

Comparison of Antioxidant Activity of Green Tea Extracts and Fractions extract Fraction IC ₅₀ (ug / ml) 46 15

Antioxidant activity of green tea fraction showed more than three times higher antioxidant activity than green tea extract.

Example 3.

10L of water was added to 1Kg of gamvir extract, and the mixture was heated to boiling and refluxed for 3 hours. The extract was taken and concentrated to give 2.5 L of a concentrate of 10% solids (w / v). 5 L of ethyl acetate was added thereto, mixed, and the mixture was left to separate layers. The upper ethyl acetate layer was recovered, 2.5L of ethyl acetate was added to the water layer, mixed, and the layers were separated and the ethyl acetate layer was recovered. The combined fraction was obtained with 7.2 L of fraction, which was concentrated in vacuo to give 165 g of a high concentration of catechin compound powder. Got it. The purity of the catechin compound in this fraction was 88% (w / w) when analyzed according to the chacatechin assay in the Food Additives Code.

Example 4.

50 g of the catechin compound fraction obtained in Example 3 and 15 g of the chaga mushroom fraction of Example 1 were dissolved in 700 ml of water, and vitamin B1, B2, B6, B12 and Vitamin C were added thereto to 100 g of rice, based on the solid content of the coating solution. To coat 0.9g each to prepare a coated rice. The obtained coated rice can enhance the nutritional ingredients by having a variety of vitamins containing the amount required by one adult per day.

As shown in the above examples, in addition to the catechin fraction and chaga mushroom fraction, it is also possible to determine the composition by adding natural extracts such as vitamins, pine needle extract, Angelica extract, licorice extract and the like as needed.

Claims

In preparing rice coating liquid

a) Extracted by adding one solvent of water, ethanol, methanol or a mixture thereof as an extraction solvent to the natural product containing the catechin compound, and concentrated to obtain a concentrated solution, to which ethyl acetate was added to recover the ethyl acetate layer and dried to catechin To obtain a compound high content powder,

b) In preparing chaga extract, the extract is obtained by adding water to chaga and extract to obtain an extract, concentrating it to make a high concentration concentrate, and recovering the beta glucan precipitated by adding 2-3 times the volume to the alcohol and dried. To obtain a chaga extract fraction containing beta glucan,

c) the catechin compound powder of a) and chaga mushroom fraction powder of b) are mixed in a weight ratio of 70 to 85:15 to 30, and water, alcohol or a mixture thereof is added thereto to have a solid content of 5 to 15%. It is obtained by making (w / v), The composition for rice coating characterized by the above-mentioned.

The composition for rice coating of claim 1, wherein the natural product containing the catechin compound is at least one of green tea and gamvir.