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Sophora davidii anthocyanin crude extract and microcapsule thereof

A technology of anthocyanins and crude extracts, which is applied in the field of one-step preparation of microcapsules of crude anthocyanins from Nitraria japonica, which can solve the problems of high cost, oxidative degradation, etc., and achieve fast capsule formation, improved stability, and simple preparation Effect

Active Publication Date: 2015-11-18
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although Nitraria anthocyanins have various functions of promoting human health and preventing diseases, if Nitraria anthocyanins are not protected by other media, they are prone to oxidative degradation under the action of light, high temperature and oxygen
At the same time, if the anthocyanin monomer compounds are to be separated and purified for use, the cost will inevitably be high

Method used

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  • Sophora davidii anthocyanin crude extract and microcapsule thereof
  • Sophora davidii anthocyanin crude extract and microcapsule thereof
  • Sophora davidii anthocyanin crude extract and microcapsule thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Embodiment 1: Preparation of anthocyanin crude extract of the present invention

[0045] The fresh or dried Nitraria fruit is used as raw material, crushed, refluxed and extracted with 60% acidified ethanol (containing 0.2% hydrochloric acid) at 50°C for three times, each time for 2 hours. Filtrate was collected by filtration, concentrated under reduced pressure at 50°C to obtain Nitraria anthocyanin extract; after dissolving the Nitraria anthocyanin extract in distilled water, after being adsorbed by AB-8 macroporous resin for 24 hours, rinse with 3 column volumes of water to remove Proteins, polysaccharides and other impurities. Then analyze with ethanol with a volume ratio of 80%, collect the eluate, concentrate under reduced pressure and freeze-dry to obtain the crude extract of Nitraria anthocyanins. The content of anthocyanin in the crude extract of the present invention is detected to be 60-70%.

Embodiment 2

[0046] Embodiment 2 Preparation of anthocyanin crude extract of the present invention

[0047] The fresh or dried Nitraria fruit is used as raw material, crushed, refluxed and extracted with 65% acidified ethanol (containing 0.1% hydrochloric acid) at 55°C for three times, each time for 2 hours. Filtrate was collected by filtration, concentrated under reduced pressure at 55°C to obtain Nitraria anthocyanin extract; after dissolving the Nitraria anthocyanin extract with distilled water, after being adsorbed by AB-8 macroporous resin for 24 hours, rinse with 3 column volumes of water to remove Proteins, polysaccharides and other impurities. Then analyze with ethanol with a volume ratio of 75, collect the eluate, concentrate under reduced pressure and freeze-dry to obtain the crude extract of Nitraria anthocyanins.

Embodiment 3

[0048] Example 3: Preparation of the crude anthocyanin extract microcapsules of the present invention

[0049] (1) Take a certain amount of sodium alginate and crude extract of white thorn anthocyanins according to the mass ratio of sodium alginate and crude extract of white thorn anthocyanins (prepared in Example 1) of 1.5:1, dissolve in water , stir well, and make the concentration of sodium alginate 2.5%, obtain the aqueous solution (solution A) of sodium alginate and white thorn anthocyanin crude extract;

[0050] (2) preparation chitosan mass concentration is the chitosan acetic acid solution of 0.8%, adds a certain amount of CaCl 2 solution, so that its mass concentration is 1.5%, and adjust the pH to 5.5 with a certain concentration of alkaline solution, and stir evenly to obtain solution B;

[0051] (3) Slowly drop solution A into solution B while stirring for film-forming reaction. The film-forming reaction time is 20 minutes. Collect microspheres, wash and dry to ob...

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Abstract

The invention provides a sophora davidii anthocyanin crude extract and further provides a microcapsule of the sophora davidii anthocyanin crude extract. The anthocyanin crude extract prepared by the invention has good antioxidant activity, so that further purification on anthocyanin is avoided, and the production and use cost is reduced. The invention provides the microcapsule, aiming at the problem that the anthocyanin as a main component is difficult to widely use in existing food because the anthocyanin is easy to oxidate and degrade under the action of illumination, high temperature and oxygen and cannot be dissolved in liposoluble substances, a microencapsulation technique which is used for keeping the stability of the anthocyanin and extending the application range thereof is provided, the tolerance for heat, light and the like is increased, and the stability is obviously increased.

Description

technical field [0001] The invention relates to a method for preparing microcapsules of crude extract of Nitraria anthocyanins by a one-step method, and belongs to the technical field of food processing. Background technique [0002] The use of Nitraria tanguta fruit as medicine is recorded in "Medicinal Plants in Desert Areas of China". It is a traditional medicinal material and is mostly used in folk. Tangut Nitraria is called Kami in the "Dictionary of Traditional Chinese Medicine". It is harvested when the fruit is ripe, dried and used as medicine, which has the effect of invigorating the spleen and stomach. Nourishes and strengthens, regulates menstruation and activates blood circulation, mainly treats diseases such as emaciation, deficiency of qi and blood, disharmony between spleen and stomach, indigestion, irregular menstruation, and low back pain due to deficiency and cold. According to the "Compendium of Materia Medica", Nitraria "smells pungent, cold, and non-tox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/30A23P1/04A61K36/489A61K9/50A61P39/06
CPCA23V2002/00A61K9/5036A61K36/489A61K2236/333A61K2236/51A61K2236/53A23V2200/30A23V2200/3262A23V2200/326A23V2200/308A23V2250/21
Inventor 丁晨旭张秋龙刘斌马涛胡娜索有瑞
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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