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Method for producing powder for refining silk

A manufacturing method and technology of silk essence powder, applied in protein food processing, animal protein processing, food science, etc., can solve the problems of high ash content in products, difficulty in removing salt, and affecting the application of silk essence, so as to facilitate subsequent processing and achieve good results Good, less ash effect

Inactive Publication Date: 2007-05-02
HUZHOU AOTESI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the use of hydrochloric acid hydrolysis, it is difficult to remove the salt after neutralization, which will cause the problem of excessive ash content in the product. At the same time, the product will contain a certain amount of harmful substances, such as lead, arsenic, mercury, etc., which affect the application of silk essence

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment one: process according to the following steps,

[0023] (1) Degumming: Weigh 10 kilograms of silkworm cocoon shells or leftover silk, add pure water, first boil with boiling water for 3 hours, the bath ratio is 1:15; dry the degummed silk, add hot water and boil for 2.5 hours, the bath ratio is 1:15, to obtain degummed silk;

[0024] (2) Clean the degummed silk: wash the degummed silk with warm water, dehydrate it with a centrifuge, then soak it in pure water for about half an hour, then centrifuge it for 2-3 times;

[0025] (3) Acid hydrolysis: Add 20-30% sulfuric acid to the washed and dried degummed silk for hydrolysis, the bath ratio is 1:5-10, slightly boiled and refluxed, hydrolyzed for 15-20 hours, until the test results show that most of them are amino acids and A certain amount of dipeptide and tripeptide;

[0026] (4) Neutralization: add alkali to neutralize until the pH value is 7.0 in silk acid hydrolyzate, alkali can select the hydroxide of met...

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PUM

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Abstract

A process for preparing refined silk powder includes boiling for deglueing, acid hydrolyzing by sulfuric acid, adding alkali for neutralizing to pH=7.0, press filtering, decoloring, adding cleaning agent, and spray drying. It can be used as the raw material of cosmetics, health-care product and food.

Description

technical field [0001] The invention relates to a method for manufacturing silk powder using silk as raw material. The obtained silk powder is a mixture of free amino acids, dipeptides and tripeptides. Background technique [0002] Due to changes in international market demand, the silk industry was in trouble, and people began to actively explore new uses of silk. Silk fibroin contains a variety of amino acids, mainly composed of amino acids such as tyrosine, alanine, serine, and tyrosine, and the contained serine, lysine, arginine, aspartic acid, and glutamic acid Both are nutrients for the skin. However, silk fibroin has a relatively large molecular weight and only swells but does not dissolve in water, so it is difficult to use. [0003] In view of this, the Chinese invention patent application CN1152410 discloses a product silk essence after hydrolysis of silk fibroin and its preparation method. The silk essence is composed of amino acids and a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23J1/00A23J3/04A23J3/30
Inventor 沈新琦盛家镛胡汉清陈义璋
Owner HUZHOU AOTESI BIOTECH