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Extraction method of Chinese yam small molecule peptides

An extraction method and technology of small molecular peptides, applied in the field of health food, can solve the problems of blank, yam protein and small molecular peptide extraction research, etc., and achieve high degree of hydrolysis, effective absorption and utilization, and high selectivity.

Inactive Publication Date: 2013-11-13
吴庆林
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Problems solved by technology

[0004] In the field of yam research, there are currently many studies on yam components and their efficacy, but there are few or almost blank studies on the extraction of yam protein and small molecule peptides

Method used

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  • Extraction method of Chinese yam small molecule peptides

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Embodiment Construction

[0026] Depend on figure 1 It can be seen that a method for extracting small molecular peptides from yam, the process flow includes: yam pretreatment, micro-high pressure extraction, enzymolysis, adsorption, filtration, concentration, drying, and finished product packaging. The characteristics of the process steps are:

[0027] (1) Yam pretreatment: mainly includes screening, cleaning, peeling, crushing and soaking, slag separation, starch separation and drying. This link is directly related to the purity of small molecule peptides of yam;

[0028] The specific operations are: ① Screening and cleaning: remove the unusable parts, select the usable parts and wash them with a washing machine; ② peeling: the yam skin affects the color and taste of the final product, and the yam needs to be peeled by a peeling machine, the peeling process Put the peeled yam into the water in time to prevent the yam from oxidation, and do not use color protection solution to improve the purity of the...

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Abstract

The invention provides an extraction method of Chinese yam small molecule peptides. The extraction method is characterized in that a Chinese yam pretreatment step mainly comprises sieving, cleaning, peeling, grinding, soaking, scum separation, starch separation and drying and has a direct relation with the purity of the Chinese yam small molecule peptides; during extraction by steaming with micro-high pressure, the temperature is 110 DEG C, the pressure is 0.05Mpa, and the extraction is carried out for 20 minutes at a constant temperature and a constant pressure; during enzymatic hydrolysis, after sterilization by heating, the temperature is reduced to 53 DEG C, NaOH is added so as to adjust the pH to 7.0, then 0.6% of neutral protease is added, and the enzymatic hydrolysis is carried out for 3.5 hours; during adsorption, 1.5% of activated carbon is added for adsorption; during filtration, a standing liquid firstly passes through a barrel-type filter, then passes through a sheet frame serving as a protective filter and finally is filtered to a clear liquid storage tank; during concentration, the concentration pressure ranges from minus 0.06Mpa to minus 0.08Mpa, the concentration temperature ranges from 85 DEG C to 70 DEG C, and the baume degree is measured in a concentration process. The Chinese yam small molecule peptides extracted by the method have high purity and nourishing and heath preservation effects and contain natural nutritional ingredients of Chinese yams. The extraction method is suitable for the extraction of the Chinese yam small molecule peptides.

Description

technical field [0001] The invention belongs to health food, and in particular relates to a method for extracting small molecular peptides from yams by enzymatic hydrolysis technology using fresh yams as raw materials, after preliminary starch removal. Background technique [0002] Yam, also known as yam, is an annual or perennial herbaceous vine of the Dioscoreaceae family. It can form plump underground fleshy tubers with high nutritional value. It is one of the important crops for food, medicine or health care, with high yield and rich nutrition. Its characteristic is that it is a traditional medicine and food homologous plant in my country. [0003] Modern scientific research has made it clear that yam tubers (rhizome) are rich in nutrients, containing a variety of carbohydrates, fats, proteins, vitamins, trace elements and other nutrients, as well as more than a dozen amino acids needed by the human body. As a medicinal and edible plant, it has a unique flavor and does n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P21/06C07K1/14
Inventor 吴庆林
Owner 吴庆林
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