Abstract
Procyanidin from grape seed were separated and purified by the aqueous phase two-extraction. Aqueous two-phase extraction systems, differently assisted extraction methods and the extraction strategies were firstly studied. The best extractions of procyanidin by aqueous two-phase system were investigated based on orthogonal experimental design. The results showed that, in the aqueous two-phase extraction system of ethanol and (NH4)2SO4, the extraction method was the microwave-assisted extraction, i.e., Ethanol, water, and compounded by microwave treatment, as well as (NH4)2SO4 were added. It was found that the best extraction conditions were 30%(w/w) ethanol/20%(w/w) (NH4)2SO4, 3%(w/w) grape seed powders, pH=4.0, microwave power 100W, ,and microwave time 5 min. Under these best extraction conditions, the recovery rate of procyanidin was 94.1%, and its yield was 25.8 mg/g.
Publication Date
3-28-2017
First Page
168
Last Page
173
DOI
10.13652/j.issn.1003-5788.2017.03.036
Recommended Citation
Xifeng, ZHANG; Guang, CHENG; Qian, HE; Fenqin, ZHANG; and Guanghong, LUO
(2017)
"Separation of procyanidin from grape seed by aqueous two-phase system,"
Food and Machinery: Vol. 33:
Iss.
3, Article 35.
DOI: 10.13652/j.issn.1003-5788.2017.03.036
Available at:
https://www.ifoodmm.cn/journal/vol33/iss3/35
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