MANUFACTURING METHOD OF SILK AMINO ACID AND SILK PEPTIDE USING SILKWORM BY HYDROCHLORIC ACID HYDROLYSIS

摘要

PURPOSE: A hydrochloric acid hydrolysis method for manufacturing silk amino acid and silk peptide by using silkworm is provided to improve immunity, protect a human body from a variety of harmful elements and promote metabolism and nutrition supply. CONSTITUTION: High-quality silkworm is cut into 3 parts after removing a pupa and washed with purified water. Water and NaHCO3 5% solution are mixed in a ratio of 10:1 and boiled at 100deg.C for 2 hours for a primary washing. NaHCO3 1% solution is mixed and boiled at 100deg.C for 1 hour for a secondary washing to eliminate Serisin and residual NaHCO3. The cut silkworm is dried by using a dryer and dissolved in 1.5N HCl at 100deg.C for 48 hours without pressure. The dissolved material is aged for 24 hours and cooled. The color of the material is black. The pH of the cooled material solution is 7 by adding NaOH and about 15% of refined salt is produced. The black material solution is decolored/deodorized by using active carbons and filtered by using a filter. The filtrate is desalted by using a desalting machine and decompression-concentrated. The concentrate is dried and pulverized to be powder by using lyophilization and spray-drying methods. The dried powder is packed in a stick or a bottle.