Abstract
The optimum condition of ultrasonic extraction of Polygala tenuifolia Willd. Polysaccharide (PTP) was investigated. The results showed, the optimum condition was ultrasonic extraction time 30 min, ultrasonic extraction, temperature 67 ℃, ratio of water to raw material 10∶1（mL/g）, and extraction 2 times, the yield of polysaccharide was（5.87±0.21）% (n=3). IR spectra predicted PTP had typical characteristic absorption peaks which were neutral polysaccharide and free from urinic acid. In vitro antioxidant activities showed PTP had effects on DPPH radical and hydroxyl radical.The IC50 of it against DPPH radical and hydroxyl radical was 0.83 mg/mL, 1.29 mg/mL.
Publication Date
5-28-2016
First Page
152
Last Page
156,193
DOI
10.13652/j.issn.1003-5788.2016.05.036
Recommended Citation
Yongshuai, JING; Lanfang, WU; Qian, WANG; Yuguang, ZHENG; Yuping, YAN; and Aimin, JIANG
(2016)
"Response surface methodology for optimization of extracting polysaccharide from Polygala tenuifolia willd. and antioxidant evaluation,"
Food and Machinery: Vol. 32:
Iss.
5, Article 36.
DOI: 10.13652/j.issn.1003-5788.2016.05.036
Available at:
https://www.ifoodmm.cn/journal/vol32/iss5/36
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