Title: Extracting process for purple sweet potato antocynidin and mucin
Application Number: 200310104159 Application Date: 2003.12.23
Publication Number: 1554710 Publication Date: 2004.12.15
Approval Pub. Date: 2007.02.14 Granted Pub. Date: 2007.02.14
International Classifi-cation: C09B61/00;C08H1/00
Applicant(s) Name: South West Normal Univ. Address:
Inventor(s) Name: Ye Xiaoli;Li Kunpei
Attorney & Agent: kang haiyan
Abstract:
    The extraction process of purple sweet potato anthocynidin and mucin includes the following steps: washing fresh or dry sweet potato, crushing, extracting in acid aqua, precipitation to eliminate starch and dregs, precipitating the supernatant with edible flocculant to obtain protein and polysaccharide, filtering, column adsorption of the filtrate, elution with acid methanol solution, decompressio concentration, and vacuum drying or spray drying to obtain product. Adopting acid solution extraction and flocculating mucinw ith flocculant to solve the filtering problem effectively, so that the present invention makes it possible to obtain anthocynidin and mucin simultaneously and has high anthocynidin purity and low production cost.
Time: 5