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Edible watural silk protein powder and preparation method of natural silk extract

A technology of silk protein powder and silk, which is applied in the field of silk protein, can solve the problems such as the preparation method and processing technology of silk protein food or silk protein beverage mentioned in the unpublished literature, and achieve the improvement of economic benefit and practical value, without toxic and side effects , the effect of high economic value

Inactive Publication Date: 2008-03-26
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past two years, some people have proposed to develop silk protein foods and silk protein beverages such as silk biscuits, silk candies, and silk protein jelly, but so far, no such food or beverage has appeared on the market, and there are no magazines, books, periodicals or literatures. Silk protein food or silk protein beverage has been developed, and there is no published literature mentioning the specific preparation method and processing technology of silk protein food or silk protein beverage

Method used

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  • Edible watural silk protein powder and preparation method of natural silk extract

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Experimental program
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Embodiment 1

[0031] As shown in Figure 1 is the flow chart of the preparation method of edible silk protein powder and silk essence of the present invention. It mainly includes impurity removal and degumming 1, controlled acid hydrolysis 2, neutralization 3, separation and purification 4, and after separation and purification 4, the solid matter is processed into silk protein powder. The steps of processing silk protein powder also include drying under reduced pressure 51 , pulverizing 52 and sterilizing 53 . The concrete operation of process step is as follows:

[0032] Impurity removal and degumming 1: After removing impurities from waste silk, add it to dilute alkaline water with a concentration of 0.5%, heat to 80-85°C, stir and degumming for 30 minutes, then wash with water and dry;

[0033] Controlled acid hydrolysis 2: Cut the pure and dry waste silk into pieces and put them into the reflux bottle, then add dilute hydrochloric acid solution with a concentration of about 10%, heat t...

Embodiment 2

[0041] After separation and purification 4, the liquid silk peptide is processed into silk essence. The steps of processing silk fines also include desalting 61 and spray drying 62 . The concrete operation of process step is as follows:

[0042] Impurity removal and degumming 1: After removing impurities from waste silk, add it to dilute alkaline water with a concentration of 0.5%, heat to 80-85°C, stir and degumming for 30 minutes, then wash with water and dry;

[0043] Controlled acid hydrolysis 2: Cut the pure and dry waste silk into pieces and put them into the reflux bottle, then add dilute hydrochloric acid solution with a concentration of about 10%, heat to 90-95°C, and then reflux, controlled acid hydrolysis 6- 8 hours; this step is a key step, and attention should be paid to prevent bumping during reflux; according to the requirements of the final product, the controlled acid hydrolysis time should be properly adjusted, and 6 hours, 7 hours, 8 hours or other suitable...

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Abstract

A process for preparing the edible silk protein powder and silk extract from the rejected silk of silkworm includes such steps as removing impurities, degumming, controlled acidolyzing, neutralizing, separating solid from liquid, purifying, vacuum drying, pulverizing to obtain edible silk protein powder, desalting the liquid silk peptide, and spray drying to obtain silk extract.

Description

【Technical field】 [0001] The invention relates to silk protein, in particular to a preparation method of edible silk protein powder. 【Background technique】 [0002] Natural silk protein contains 18 kinds of amino acids needed by the human body. It is an important nutrient component needed by the human body. It has strong affinity, safety and good biocompatibility with the human body. Through effective supplementation, it can enhance skin cells. Vitality, promote metabolism. The glycine content in silk protein is as high as 36.8%, which plays a great role in the living body. It is not only a raw material for protein synthesis, but also detoxifies aromatic harmful substances. Glycine and valine have anti-radiation, prevent White blood cell decline, serine can prevent aging, prevent white blood cell decline and hair growth; leucine and light acid have high nutritional value, prevent aging, promote metabolism and body regeneration. [0003] In the past two years, some people h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23J3/04
Inventor 胡桂燕计东风曹锦如谢德松陈诗钟石
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES