Title: Method of recovering gelatin from waste soft capsules and tailings
Application Number: 200310108623 Application Date: 2003.11.11
Publication Number: 1544561 Publication Date: 2004.11.10
Approval Pub. Date: Granted Pub. Date: 2005.08.31
International Classifi-cation: C09H3/00
Applicant(s) Name: Zhejiang University Address: 310027
Inventor(s) Name: He Long
Attorney & Agent: zhang fagao
Abstract:
     The invention provides a process for reclaiming gelatine from waste capsule and leftover bits and pieces, which comprises the steps of, (1) dissolving the waste in 5-10 times volume of deionized water, the solution temperature being 50-90 deg. C, forming colloidal solution, filtering the homogeneous colloidal solution on the lower layer, (2) using 1/2-1 times volume of petroleum ether, acetic acid ethyl ester, normal butyl alcohol, methylene chloride as solvent for scouring, abstraction, (3) adjusting pH to 5.8-8, charging 1/4-1 times volume of edible alcohol, for protein coagulation, filtering and vacuum drying.
Time: 10