CN111543636A

CN111543636A - Flavone high-fiber composition and preparation method thereof

Info

Publication number: CN111543636A
Application number: CN202010497141.4A
Authority: CN
Inventors: 王京杭
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-08-18

Abstract

The invention provides a flavone high-fiber composition and a preparation method thereof. The research of the invention finds that the content of the resistant dextrin (RS) is not less than 12 times of the content of the Dihydromyricetin (DMY), namely RS/DMY is more than or equal to 12, the solubility, stability and redissolution effect of the dihydromyricetin are obviously improved, the bitter taste (debittering effect) of the dihydromyricetin is obviously reduced, and the effect is stronger along with the increase of the relative content of the resistant dextrin. According to the discovery, the composition with higher content of dihydromyricetin and resistant dextrin and the preparation method thereof are researched and provided, and the composition has important industrial application value.

Description

Flavone high-fiber composition and preparation method thereof

Technical Field

The invention relates to the technical field of research and development of plant functional health-care preparations and beverages. More particularly, the present invention relates to a composition containing high content of dihydromyricetin and resistant dextrin and a preparation method thereof.

Background

Dihydromyricetin (DMY), also known as ampelopsin, is a white needle-like crystal that is slightly soluble in water and readily soluble in hot water, ethanol and acetone. DMY belongs to natural flavanonol compounds, is mainly derived from Ampelopsis grossedentata, is also called Ampelopsis grossedentata tea, nectarine and the like, belongs to Ampelopsis plants of Vitaceae, comprises Ampelopsis plants such as Ampelopsis grossedentata (Ampelopsis megalophylla Diels et. Gilg), and the DMY content in the tender leaves and tea tips of the Ampelopsis grossedentata can reach 20-30 percent generally, and is a plant source with the highest DMY content. Vine tea contains no caffeine or very little (negligible) caffeine. Hovenia dulcis thunb, waxberry bark and the like are also rich in DMY. DMY can also be chemically synthesized. Pharmacological research shows that DMY has obvious health care and treatment effects of resisting inflammation, resisting oxidation, losing weight, reducing blood fat, reducing blood pressure, reducing blood sugar, protecting liver and nerves, resisting tumors and the like, and has important application value.

It is very necessary to develop high content (concentration) DMY beverage. Because the clinical (health care) effective dose of DMY usually needs more than 500mg per day, and the functional health care (or treatment) drink usually needs to be drunk for a long time according to a certain effective dose, the development of DMY drink with higher concentration and smaller volume (specification) is necessary and the best choice, such as liquid drink with 10-200ml per bottle (jar), or solid drink with good solid-liquid reversible conversion performance, and the like, is convenient for transportation, carrying and taking, and has important health care treatment and market application value.

However, the development of high DMY content beverages requires overcoming the following difficulties with DMY: DMY is poorly soluble, poorly stable, bad tasting (bitter), and the problem is more severe with higher DMY concentrations. These problems are important obstacles to the development of high DMY content beverages. This insolubility of DMY, whether in a liquid or solid form, is clearly not conducive to the dissolution of the DMY product, nor to the gastrointestinal absorption and efficacy of DMY.

DMY is known to have poor water solubility, only about 0.07% (0.7mg/ml) at room temperature (Benguo Liu, et al, JFood biochemistry.2012, 36: 634; Shezhiying et al, university of Wuxi, 2004, 23 (2): 17.), and even worse at low temperatures. DMY pure powder is insoluble in water, can be gradually dissolved only by heating to a higher temperature, is unstable after cooling, and is easy to precipitate or crystallize, even is subjected to oxidative denaturation and inactivation.

DMY is rich in phenolic hydroxyl and has remarkable antioxidant activity, but is easily affected by oxygen, high temperature and other environmental factors in the beverage to cause browning. The DMY browning refers to a process that the color of the DMY is gradually deepened from colorless (or light yellow) to brown or brown in an aerobic environment, and the essence is that the DMY undergoes an oxidative denaturation reaction, so that the content of the DMY is reduced, and oxidation products of the DMY are easy to aggregate and precipitate, and cause a series of adverse reactions such as abnormal mouthfeel.

The Resistant Dextrin (RS) is a low-molecular-weight soluble dietary fiber, is generally prepared by decomposing, derivatizing and purifying starch under the acid-heat condition, belongs to glucan which is difficult to digest by digestive enzymes of a human body, has good stability, has health-care effects of improving the environment of intestinal flora (prebiotics), losing weight, reducing blood fat, reducing blood sugar, relieving constipation and the like, can be used as a common food raw material (approved in 2012) and can be widely applied to foods and health-care products, and is safe and effective. RS has high water solubility, and the weight percentage concentration can reach about 80% (w/w). The RS content is measured by taking soluble dietary fiber as a measurement index, and the measuring method comprises but is not limited to an enzymolysis method and an HPLC method, and specifically, the reference can be made to a resistant dextrin standard, a second method for measuring dietary fiber in food GB/T22224-2008 and the like.

DMY and RS have complementation and/or cooperativity in health care function, and the combined application has better complementary health care function.

However, there is no document or patent on the high-content dihydromyricetin-resistant dextrin (DMY-RS) composition and the preparation method thereof of the present invention, and it is not clear what influence and rule the RS has on the solubility, stability, bitterness, solid-liquid conversion performance, etc. of DMY.

The inventors found in previous studies that addition of 6% RS to 1% DMY reduced the solubility and trait stability of DMY (more precipitation occurred compared to 1% DMY), i.e., RS had a decreasing effect on the solubility and trait stability of DMY at RS/DMY ═ 6, and proposed a DMY-RS-CAF composition solution that improved DMY-RS solubility with Caffeine (CAF) dose-dependency (patent application No. 201911074489.6); however, it is not found that RS has the effect of increasing the solubility and stability of DMY when RS/DMY is more than or equal to 12.

In the composite fermented tea beverage invented by Penggui Xiang, etc. (Chinese patent application No. 201910228978.6), the ampelopsis grossedentata dosage is 0.5%, and the DMY content in the beverage is usually not more than 1.5mg/ml (0.15%) and the RS content is not more than 16mg/ml (1.6%) according to the estimation of 30% of DMY content in ampelopsis grossedentata and 100% of extraction rate. The DMY and RS content of the drink is obviously lower than the content requirement of the composition, and the influence and rule of RS on the solubility, stability, mouthfeel and the like of DMY are not explained, so that no technical guidance is provided for the high-content DMY-RS composition.

Disclosure of Invention

The invention aims to provide a DMY-RS composition with high content and a preparation method thereof.

The product category related to the DMY-RS composition comprises but is not limited to drinks. The beverage is a product which is popular with consumers and has better industrial application value.

The inventor has intensively studied and surprisingly found that:

the effect of RS on DMY solubility and stability presents a complex curvilinear relationship, rather than a simple linear relationship. The linear relation is a common habitual thinking mode of people and is also an inertial thinking, and under the condition of lacking deep and comprehensive understanding, the error judgment of an 'obvious' formula is easily generated on a complex nonlinear problem.

The inventor researches and discovers that: for a 10mg/ml DMY-RS series aqueous solution, under the condition of room temperature, RS has obvious dissolution promotion and stabilization effects (shown as reduction of solution precipitation) on DMY when RS/DMY is more than or equal to 12, the dissolution promotion and stabilization effects are better along with the increase of the ratio of RS/DMY, and the solution can be kept in a stable state for a long time. Under the condition of low-temperature refrigeration (4 ℃), RS has obvious dissolution promotion and stabilization effects on DMY when RS/DMY is more than or equal to 20, and has stronger effects when RS/DMY is more than or equal to 30, namely the dissolution promotion effect and the stability are enhanced along with the increase of the ratio of RS/DMY. It is suggested that aqueous solutions of DMY-RS exhibit different solubility characteristics at different temperatures, and that DMY has poorer low temperature solubility and stability than at room temperature, and that more RS needs to be added to provide better dissolution promotion and stabilization. (see FIG. 1)

In contrast, at RS/DMY < 12 (room temperature) or 20 (refrigerated), RS exhibits no solubilizing effect or increased solution precipitation (precipitating effect) on DMY.

RS has debittering effect on DMY, and the debittering effect strength is positively correlated with the RS dose. For example, in a 10mg/ml DMY-RS series aqueous solution, the bitterness of the solution is gradually weakened along with the increase of the content of RS relative to DMY, the bitterness is remarkably weakened when the RS/DMY is more than or equal to 10, the bitterness can be basically eliminated when the RS/DMY is more than or equal to 20, and the effect is better when the RS/DMY ratio is more than or equal to 30.

The solubilizing effect of RS on DMY is also shown in the aspect of remarkably improving the solid-liquid conversion property of DMY. For example, the liquid DMY-RS composition of the invention can be dissolved by adding a suitable amount of water (e.g., 5 to 10 times) and stirring (without heating) at room temperature after concentrating and drying, and can be restored to a composition and properties similar to those of a liquid product; in contrast, after drying the aqueous DMY solution, the DMY is not dissolved (still turbid) by adding a proper amount of water and stirring at room temperature, and the DMY is gradually dissolved by heating.

4. In contrast, the above-mentioned action characteristics of RS on DMY are different from those of RS on puerarin, baicalin and other flavones. Suggesting that the effect of RS on DMY is unique.

In summary, the DMY-RS compositions of the present invention have significantly better solubility, stability and sensory attributes than DMY, including both liquid and solid compositions. The RS addition amount of the invention has obvious improvement effect on DMY water solubility, stability, bitterness and other sensory quality, and can independently and effectively solve the problems.

In the composition, the effective addition amount of RS is more than or equal to 12, preferably more than or equal to 20, and more preferably more than or equal to 25.

The invention has the beneficial effects that:

1. provides a unique technical scheme of the high-content DMY-RS composition, and has the advantages of high DMY and RS content, small unit dose volume, good solubility and stability, better mouthfeel, convenient transportation and carrying, suitability for long-term administration and the like.

2. The invention discloses a DMY-RS composition and a preparation method thereof by originally discovering the dosage range and the characteristic that the solubility, the stability and the debittering effect of the DMY are improved by the dosage dependence of RS on DMY and the obvious improvement effect of the RS on the solid-liquid reversible conversion performance of DMY products. Overcomes the defects of low DMY solubility, poor stability, poor taste (bitter taste), poor solid-liquid conversion and the like. This is a non-obvious and original technological advance.

3. The DMY-RS composition can play a complementary or synergistic role of DMY and RS in the aspect of health care or treatment functions, and has the main effects of losing weight, reducing blood fat, reducing blood sugar, reducing blood pressure, resisting oxidation, resisting aging, resisting tumors, improving gastrointestinal tract functions, relieving constipation and the like, so the composition has better market application value.

First aspect of the invention:

1. the flavone high-fiber composition is characterized by comprising the following basic components in percentage by mass: dihydromyricetin (DMY) 0.20-6.0 wt%, resistant dextrin (RS) 2.5-75 wt%, RS/DMY not less than 12 wt%, and water 20-97 wt%; contains no caffeine or caffeine no more than 3.0% of DMY.

2. The composition according to the invention is characterized by a preferred composition comprising: DMY is 0.30-4.0%, RS is 6.0-80%, RS/DMY is not less than 20%, and water is 16-90%.

3. The composition according to the invention is characterized by a better composition comprising: DMY is 0.40-3.0%, RS is 10-75%, RS/DMY is not less than 25%, and water is 20-90%.

4. The flavone high-fiber composition is characterized in that the sources of DMY include, but are not limited to, ampelopsis grossedentata (Ampelopsis grossedentata) and ampelopsis grossedentata extracts, DMY-rich food raw materials or medicinal materials and extracts thereof, and chemical compositions; wherein DMY includes a group-modified derivative thereof.

5. The flavone high-fiber composition is characterized in that RS is soluble dietary fiber in nature.

6. The composition according to the present invention is characterized in that the present invention may further comprise a food or pharmaceutical acceptable carrier, including but not limited to: liquids such as water, saline water, glycerin, ethanol, and alcoholic liquors containing ethanol; auxiliary components such as emulsifier, pH buffer substance, alginate jelly, pectin, sodium carboxymethylcellulose, xanthan gum, gellan gum, guar gum, carrageenan, cyclodextrin, citric acid, sodium citrate, malic acid, sodium malate, sucrose, fructose, maltitol, stevioside, and other sweetening agent; nutrients or functional factors such as L-carnitine, taurine, arginine, leucine, theanine, caffeine, catechin, epigallocatechin gallate (EGCG), gamma-aminobutyric acid, soluble protein (peptide), chitosan oligosaccharide, plant polysaccharide, oligosaccharide, vitamin B, vitamin C, vitamin D, vitamin E, beta-carotene, calcium, magnesium, zinc, selenium, chromium; is prepared from single or compound extracts of animal, plant and/or Chinese medicinal materials, guarana extract, fruit and vegetable juice, etc.

7. The compositions according to the present invention are characterized by being in the form of liquids, including but not limited to oral liquids, beverages, gels and creams.

The present invention also includes another composition:

a flavone high-fiber solid composition is characterized in that: the solid-state material is in a solid form, and comprises the following basic components (in percentage by mass): 0.20-7.5% of DMY, 10-90% of RS, and more than or equal to 12% of RS/DMY; caffeine is not contained or the content of caffeine does not exceed 3.0% of DMY; the water content is low (or negligible);

preferred solid composition compositions include: DMY is 0.50-4.7%, RS is 16-95%, RS/DMY is not less than 20;

more preferred solid composition compositions comprise: DMY is 0.80-3.8%, RS is 25-96%, and RS/DMY is more than or equal to 25%.

Second aspect of the invention:

the preparation method of the flavone high-fiber composition is characterized by comprising the following process steps:

obtaining DMY, wherein the DMY comprises pure DMY, DMY-containing extract or raw material thereof;

obtaining RS, including RS-containing articles;

mixing DMY, RS and proper amount of carrier to obtain DMY-RS solution.

The preparation method is characterized in that the preparation steps of the DMY-RS dissolving solution comprise:

mixing DMY, RS and a proper amount of carrier which meet the composition dosage requirement of the composition, wherein RS/DMY is more than or equal to 12, preferably RS/DMY is more than or equal to 20, and more preferably RS/DMY is more than or equal to 25;

stirring, mixing and dissolving to form DMY-RS solution, wherein the heating and dissolving temperature is preferably not lower than 40 ℃, and the heating temperature is more preferably 50-100 ℃;

quantitatively packaging the DMY-RS solution for sterilization.

The preparation method of the solid composition is characterized by comprising the following process steps:

DMY, RS and a proper amount of carrier are mixed, and can be heated and dissolved if necessary, and the addition amount meets the requirements of the composition;

drying and/or shaping, wherein the drying method comprises evaporation, vacuum drying and spray drying;

and (6) quantitatively subpackaging.

In a third aspect of the invention:

provides the use of a flavone high-fiber composition, including food, beverage or ingredient thereof, dietary supplement, health food and medicament. The health promotion and treatment functions include reducing weight (or managing body fat), reducing blood lipid, lowering blood sugar, lowering blood pressure, resisting oxidation, resisting aging, resisting tumor, improving gastrointestinal function, and relieving constipation.

Drawings

FIG. 1: effect of RS on DMY solubility. The ordinate represents the relative precipitation amount (%) of the solution, and the abscissa represents the RS/DMY ratio. As can be seen from FIG. 1, at RS/DMY ≧ 12, the solubility and stability of the aqueous solution of the DMY-RS composition are positively correlated with the magnitude of the ratio, with greater RS/DMY ratios being better in solubility and stability (less precipitate).

FIG. 2: the relation between the solid redissolution effect of the DMY-RS composition and the RS/DMY ratio. The ordinate represents the relative precipitation amount (%) of the reconstituted solution, and the abscissa represents the RS/DMY ratio. As can be seen from FIG. 2, when the RS/DMY is greater than or equal to 10, the DMY-RS aqueous solution is dried and then added with a proper amount of water to be stirred at room temperature for redissolution, the solubility and stability of the redissolution are positively correlated with the RS/DMY ratio, and the larger the ratio, the better the effect (the smaller the precipitation amount).

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Experimental procedures in the following examples, in which specific conditions are not specified, are generally carried out under conventional conditions or under conditions recommended by the equipment manufacturers. All percentages, ratios, proportions, or parts of this invention are by weight unless otherwise specified.

The identification or content detection of the DMY, RS and other components can be carried out by the conventional methods (including HPLC method, colorimetric method and the like) in the known literature; RS takes soluble dietary fiber as a metering index.

The features mentioned above with reference to the invention, or the features mentioned with reference to the embodiments, can be combined arbitrarily. All the features disclosed in this specification may be combined in any combination, and each feature disclosed in this specification may be replaced by alternative features serving the same, equivalent or similar purpose. Thus, unless expressly stated otherwise, the features disclosed are merely generic examples of equivalent or similar features.

Unless defined otherwise herein, the terms "comprises" and "comprising" are used in the present specification to define the invention, and are used in a generic and descriptive sense only and not for purposes of limitation. Any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention. The preferred embodiments and materials described herein are exemplary only. Furthermore, as used herein, the singular tense of a noun, without conflict with the context, includes the plural form of that noun; the use of plural nouns also covers the singular form of such nouns.

Example 1:

RS (Deuterol-beta) -DMY (dimethyl formamide) solubility and stability improvement effect

The method comprises the following steps: mixing a proper amount of DMY (the content is more than or equal to 98 percent) and RS (the content is more than or equal to 90 percent) with a proper amount of purified water, heating to 80 ℃ for 10 minutes under stirring for dissolving, subpackaging and sealing in screw test tubes (10 ml/piece), sterilizing in a water bath at 90 ℃ for 10 minutes, and preparing into DMY 10mg/ml-RS series aqueous solution. Then, the test sample was allowed to stand at room temperature (20-30 ℃ C.) and refrigerated in a refrigerator (4 ℃ C.) for at least 30 days. Evaluating the solubility and the character stability of the DMY-RS aqueous solution by taking the volume percentage of the solution precipitation volume in the total volume as an index; the mouthfeel (bitterness) of the solution was evaluated on a person's trial.

The results show that: (see FIG. 1)

The effect of RS on DMY solubility and stability presents a complex curvilinear relationship, rather than a simple linear relationship. For a 10mg/ml aqueous DMY-RS solution, when RS/DMY is less than 12, the DMY solubility and stability are reduced (shown as an increase in precipitation amount of the solution), and RS has no solubilizing effect or shows a precipitating effect on DMY (an increase in precipitation amount); when RS/DMY is more than or equal to 12, the solubility and stability of DMY are increased (shown as the precipitation amount of the solution is reduced), and dissolution promotion and stabilization effects are shown, wherein the effects are stronger when RS/DMY is more than or equal to 20 and 30.

The DMY-RS aqueous solution presents different dissolution characteristics in different temperature environments. At room temperature, RS has obvious dissolution promotion and stabilization effects on DMY when RS/DMY is more than or equal to 12, the dissolution promotion and stabilization effects are better along with the increase of the ratio of RS/DMY, and the solution can be kept in a stable state for a long time; and in low-temperature refrigeration, the RS has obvious dissolution promotion and stabilization effects on the DMY when the RS/DMY is more than or equal to 20, and the dissolution promotion effect and the stability are enhanced along with the increase of the ratio of the RS/DMY. Suggesting that DMY has poor low temperature solubility and stability, and more RS needs to be added to provide better dissolution promotion and stabilization.

RS has debittering effect on DMY, and the debittering effect strength is positively correlated with the relative dosage of RS. For a 10mg/ml DMY-RS aqueous solution, the bitterness of the solution tends to be weakened along with the increase of the relative content of RS, the bitterness is obviously weakened when the RS/DMY is more than or equal to 10, and the bitterness can be basically eliminated when the RS/DMY is more than or equal to 20.

In summary, the DMY-RS compositions of the invention have significantly better solubility, stability and sensory qualities than DMY, including both liquid and solid products. The RS addition amount of the invention has obvious improvement effect on DMY water solubility, stability, bitterness and other sensory quality.

The effective addition amount of RS for improving the solubility and stability of DMY is as follows: RS/DMY is 12 or more, preferably 20 or more, more preferably 25 or more.

Example 2:

RS improves solid-liquid conversion (redissolution) performance of DMY

The method comprises the following steps: reference example 1 was conducted to prepare a DMY 10mg/ml-RS aqueous solution, which was then heated (80-90 ℃) to concentrate and dry to a dry product, and then an appropriate amount of water was added to the original liquid volume, and the mixture was stirred and mixed at room temperature, and then left to stand at room temperature in a closed state for 1 day, and then the redissolution effect was observed, and the dissolution effect and stability after redissolution were evaluated using the properties of the redissolution and the relative volume precipitation (%) as indices.

The results show that: (see FIG. 2)

1. When RS/DMY is 5, adding 5-10 times of water into a dry DMY-RS aqueous solution, stirring and uniformly mixing at room temperature, standing the re-dissolved solution to form a turbid solution, wherein the precipitation amount is obviously larger than that of a reference substance (DMY 10mg/ml), and indicating that RS has the effect of inhibiting DMY dissolution or coprecipitation.

2. When the RS/DMY is more than or equal to 10, the redissolution effect of a dry DMY-RS aqueous solution is obviously better than that of a reference substance, wherein the redissolution is basically dissolved (only trace precipitation) when the RS/DMY is more than or equal to 10, and the redissolution can be completely dissolved and has good stability, no turbidity and precipitation and stronger dissolution promotion effect when the RS/DMY is more than or equal to 15, 20 and 30.

In conclusion, the solid-liquid conversion properties of the DMY-RS composition of the invention are significantly better than those of DMY.

Example 3:

preparation of DMY-RS oral liquid or solid beverage

Example 4:

DMY-RS fruit juice liquid beverage

Preparing mulberry and red date extract: mixing 120kg of dried mulberry, 100kg of dried red date and 5kg of citric acid with 2000kg of purified water, heating to 90 ℃ under stirring for 15 minutes, cooling, homogenizing, adding 1kg of pectinase and cellulase (activity is 1 ten thousand U/g), keeping the temperature at 50 ℃, stirring, hydrolyzing for 4 hours, heating to 90 ℃ under stirring for 15 minutes, cooling, performing pressure filtration, collecting filtrate, centrifuging or filtering to obtain about 2000L of supernatant, wherein the supernatant is mulberry and red date extract.

Blending the beverage: taking 2000L of mulberry and red date extract, adding 36kg of ampelopsis grossedentata extract (DMY is more than or equal to 98 percent) and 850kg of RS (food grade, dietary fiber content is about 85 percent) while stirring, heating to 80 ℃ for 20 minutes while stirring for dissolution, adding 1kg of VC, 1kg of taurine, 1kg of stevioside and 2kg of xanthan gum while stirring, heating to 90 ℃ for 10 minutes while stirring for dissolution, adjusting to pH4.0, filtering and collecting filtrate (about 2500L), filling the filtrate into a bottle of 50ml, sterilizing by water bath for 95 ℃ for 25 minutes, cooling to room temperature, labeling, boxing and warehousing for later use after inspection is qualified, and obtaining the DMY-RS fruit juice liquid beverage.

DMY-RS fruit juice liquid beverage: 50 ml/bottle, DMY content about 1.4%, RS content about 28% (w/v), RS/DMY about 20.

Example 5:

DMY-RS solid beverage

Preparing mulberry, red date and vine tea extract: taking 100kg of dried mulberry, 100kg of dried red date, 100kg of vine tea powder (DMY content is about 25%), 10kg of ginseng and 5kg of citric acid, mixing with 2000kg of purified water, heating to 90 ℃ under stirring, keeping for 20 minutes, cooling, homogenizing, adding 2kg of pectinase and cellulase (activity is 1 ten thousand U/g), keeping the temperature at 50 ℃, stirring, hydrolyzing for 5 hours, heating to 90 ℃, stirring, extracting for 30 minutes, cooling, carrying out pressure filtration, collecting filtrate, centrifuging, and collecting supernatant of about 2000L to obtain mulberry, red date and vine tea extract.

Taking 2000L of mulberry, red date and vine tea extract, adding 650kg of RS (the content of dietary fiber is about 90 percent) while stirring, stirring and dissolving at 80 ℃ for 30 minutes, adding 20kg of L-carnitine and 140kg of xylitol dry powder, stirring and dissolving, filtering, concentrating under reduced pressure, and spray-drying to obtain 1000kg of dry powder with the water content of about 3 percent. Adding appropriate amount of composite VB and VC dry powder, mixing, blending uniformly, and quantitatively packaging into 20 g/bag to obtain DMY-RS solid beverage.

DMY-RS solid beverage: 20 g/bag, DMY content about 2.4%, RS content about 58% (w/w), RS/DMY about 24.

The foregoing is only a partial embodiment of the present invention and is not intended to limit the scope of the present invention, which is defined in the claims of the present application, and any other technical entity or method implemented by another person is encompassed by the claims of the present application.

Claims

1. A flavone high-fiber composition is characterized by comprising the following basic components in percentage by mass:

dihydromyricetin (DMY) 0.20-6.0%;

resistant dextrin (RS) is 2.5-75%, wherein RS/DMY is more than or equal to 12;

20-97% of water;

contains no caffeine or caffeine not more than 3.0% of DMY.

2. The composition of claim 1, wherein the preferred composition comprises: DMY is 0.30-4.0%, RS is 6.0-80%, RS/DMY is not less than 20%, and water is 16-90%.

3. The composition of claim 1, wherein the composition further comprises: DMY is 0.40-3.0%, RS is 10-75%, RS/DMY is not less than 25%, and water is 20-90%.

4. The composition of claim 1, wherein the source of DMY includes, but is not limited to, Ampelopsis grossedentata (Ampelopsis grossedentata leaf), Ampelopsis grossedentata extract, DMY-rich food or medicinal materials and extracts thereof, and chemical compositions; wherein DMY includes a group-modified derivative thereof.

5. The composition of claim 1, wherein the RS is characterized by a soluble dietary fiber.

6. The composition of claim 1, wherein the composition further comprises a food or pharmaceutical acceptable carrier, including but not limited to: liquids such as water, saline water, glycerin, ethanol, and alcoholic liquors containing ethanol; auxiliary components such as emulsifier, pH buffer substance, alginate jelly, pectin, sodium carboxymethylcellulose, xanthan gum, gellan gum, guar gum, carrageenan, cyclodextrin, citric acid, sodium citrate, malic acid, sodium malate, sucrose, fructose, maltitol, stevioside, and other sweetening agent; nutrients or functional factors such as L-carnitine, taurine, arginine, leucine, theanine, caffeine, catechin, epigallocatechin gallate (EGCG), gamma-aminobutyric acid, soluble protein (peptide), chitosan oligosaccharide, plant polysaccharide, oligosaccharide, vitamin B, vitamin C, vitamin D, vitamin E, beta-carotene, calcium, magnesium, zinc, selenium, chromium; is prepared from single or compound extracts of animal, plant and/or Chinese medicinal materials, guarana extract, fruit and vegetable juice, etc.

7. A method of preparing the composition of claim 1, wherein the process steps comprise:

obtaining RS, including RS-containing articles;

mixing DMY, RS and proper amount of carrier to obtain DMY-RS solution.

8. The preparation method according to claim 7, wherein the step of preparing the DMY-RS solution comprises: 1) mixing DMY, RS and a proper amount of carrier which meet the composition dosage requirement of the composition, wherein RS/DMY is more than or equal to 12, preferably RS/DMY is more than or equal to 20, and more preferably RS/DMY is more than or equal to 25; 2) stirring, mixing and dissolving to form DMY-RS solution, wherein the heating and dissolving temperature is preferably not lower than 40 ℃, and the heating temperature is more preferably 50-100 ℃; 3) and subpackaging and sterilizing the DMY-RS solution.

9. A flavone high-fiber solid composition is characterized in that: the solid-state material is in a solid form, and comprises the following basic components (in percentage by mass): 0.20-7.5% of DMY, 10-90% of RS, and more than or equal to 12% of RS/DMY; contains no caffeine or caffeine no more than 3.0% of DMY.

10. The solid composition of claim 9, wherein the preferred composition comprises: DMY is 0.50-4.7%, RS is 16-95%, RS/DMY is not less than 20; the better composition comprises: DMY is 0.80-3.8%, RS is 25-96%, and RS/DMY is more than or equal to 25%.