Oat fermentation extract as well as preparation method and application thereof

Abstract

The invention provides a preparation method of an oat fermentation extract, which comprises the following steps of: step 1, taking oat as a fermentation substrate, inoculating bifidobacteria, and carrying out anaerobic fermentation to obtain fermentation liquid; and step 2, inoculating saccharomycetes into the fermentation liquid, and carrying out aerobic fermentation to obtain the oat fermentation extract. According to the preparation method provided by the invention, the oat raw material is sequentially subjected to anaerobic and aerobic fermentation by utilizing bifidobacteria and saccharomycetes, and a fermentation control process is optimized, so that the oat extract rich in various active ingredients such as oat beta-glucan, glutathione, amino acid, lactic acid, total phenols, saponin and flavone is prepared, especially the content of beta-glucan and glutathione is obviously increased, and the content of amyloid sugar in the oat is reduced, so that the oat fermentation extract is particularly suitable for cosmetic raw materials, and an effective oat fermentation extract production process which is simple to operate is formed.

Description

technical field [0001] The present application relates to the technical field of biological fermentation, in particular to an oat fermented extract and its preparation method, and the application of the oat fermented extract prepared by the method in anti-oxidation and anti-aging cosmetics. Background technique [0002] Oat is a grass herb and one of the important crops in my country. Studies have shown that oat has good biological activity and medicinal value, and can be used in food, feed, medicine, cosmetics and industrial raw materials. [0003] As a functional ingredient, oat has a variety of functional ingredients, such as protein, unsaturated lipids, vitamins, polyphenols, alkaloids, saponins, etc., and also contains a large number of antioxidants, mainly glutathione, Polyphenols, phytic acid sterols and vitamins, etc. In addition, oatmeal also contains a large amount of β-glucan. β-glucan has the functions of anti-aging and anti-wrinkle, promoting stratum corneum r...

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Problems solved by technology

[0004]However, the above-mentioned active substances contained in oats are widely present in the seed granules, and are fused together with starch and macromolecular proteins, and the simple water extraction effect is very Poor and potentially allergenic, the obtained oat extract is not suitable for use as a cosmetic raw material

[0005] In the prior art, in order to better extract the active substances in oats and make them suitable for the preparation of cosmetics, enzymatic treatment is usually used for decomposition and extraction, such as adding Amylase, protease, etc., but in the extract obtained after enzymatic hydrolysis, it is difficult to separate the dextrin and starch sugar substances obtained by decomposition, which is also not conducive to the application of oat extract in cosmetics

Patent document CN110772468A discloses a preparation method of oat white fungus fermentation product filtrate, which uses yeast to ferment oat and white fungus, and the fermented product has anti-oxidation, anti-aging and whitening effects, however, the fermentation filtrate obtained by this method The types and contents of functional ingredients are small, which is not conducive to further improving the application effect of oatmeal in the field of cosmetics

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