Optimized ultra-high-pressure-assisted extraction of procyanidins from lychee pericarp improves the antioxidant activity of extracts
文献类型: 外文期刊
第一作者: Zhang, Ruifen
作者: Zhang, Ruifen;Zhang, Mingwei;Su, Dongxiao;Zhang, Ruifen;Liu, Lei;Huang, Fei;Dong, Lihong;Deng, Yuanyuan;Zhang, Yan;Wei, Zhencheng;Zhang, Mingwei;Hou, Fangli
作者机构:
关键词: ultra-high-pressure;procyanidins;lychee pericarp;antioxidant activity
期刊名称:BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY ( 影响因子:2.043; 五年影响因子:2.017 )
ISSN: 0916-8451
年卷期: 2017 年 81 卷 8 期
页码:
收录情况: SCI
摘要: To establish optimal ultra-high-pressure (UHP)-assisted extraction conditions for procyanidins from lychee pericarp, a response surface analysis method with four factors and three levels was adopted. The optimum conditions were as follows: 295 MPa pressure, 13 min pressure holding time, 16.0 mL/g liquid-to-solid ratio, and 70% ethanol concentration. Compared with conventional ethanol extraction and ultrasonic-assisted extraction methods, the yields of the total procyanidins, flavonoids, and phenolics extracted using the UHP process were significantly increased; consequently, the oxygen radical absorbance capacity and cellular antioxidant activity of UHP-assisted lychee pericarp extracts were substantially enhanced. LC-MS/MS and high-performance liquid chromatography quantification results for individual phenolic compounds revealed that the yield of procyanidin compounds, including epicatechin, procyanidin A2, and procyanidin B2, from lychee pericarp could be significantly improved by the UHP-assisted extraction process. This UHP-assisted extraction process is thus a practical method for the extraction of procyanidins from lychee pericarp.
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