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Authors

RU Yue-rong, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
ZHANG Zhi-yang, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
YANG Jin-mei, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
HE Bin, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
KAN Huan, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
LIU Yun, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
WANG Zhen-xing, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China
ZHANG Xue-chun, Forest Food Research Institute, Southwest Forestry University, Kunming, Yunnan 650224 , China ;College of Life Sciences, Southwest Forestry University, Kunming, Yunnan 650224 , China

Abstract

The ultrasound-assisted extraction was applied to the extraction of polyphenols from the Cyclobalanopsis glauca fruit shells. The effects of the concentration of ethanol, solid-liquid ratio, ultrasonic time, and number of extraction cycles on the yield of phenolic yield were studied, and the extraction process was optimized by response surface methodology (RSM). Then the in vitro antioxidant activities of Cyclobalanopsis glauca shell fruit extract (CGSE), including ferric ion reducing antioxidant power (FRAP) and oxygen radical absorbance capacity (ORAC), were evaluated. Results: The optimal extraction process were as followed: volume fraction of ethyl alcohol 50%, extracting time 25 min, solid-liquid ratio 1:40, extraction times 5. Under condition, the maximum extraction yield was 3.13%. The Cyclobalanopsis glauca Shells Extracts (CGSE) showed higher antioxidant activity with FRAP values of (984.44±123.15) mg FeSO4/g·DW, and ORAC values of (200.15±23.24) mg Trolox/g·DW, which was higher than the commercial antioxidant 2,6-di-tert-butyl-4-methylphenol (BHT). The above results suggest that the Cyclobalanopsis glauca fruit shell might be a natural antioxidant resource.

Publication Date

3-28-2020

First Page

179

Last Page

184

DOI

10.13652/j.issn.1003-5788.2020.03.034

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