Extraction, characterization, and bioactivity of soluble dietary fiber from Physalis alkekengi L. calyx
文献类型： 外文期刊
第一作者： Wang, Jiaming
作者： Wang, Jiaming;Liang, Bin;Li, Zhentao;Wu, Xinru;Wang, Zifei;Yu, Te;Wu, Qiong;Gao, Yang;Dai, Yonggang
作者机构：
关键词：
期刊名称：JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION （ 影响因子：3.3； 五年影响因子：3.5 ）
ISSN： 2193-4126
年卷期： 2024 年 18 卷 12 期
页码：
收录情况： SCI
摘要：
Physalis alkekengi L. is one of the most popular berries in the world, and its calyx is rich in nutrients. Still, the study of soluble dietary fiber (SDF) from Physalis alkekengi L. calyx (PC) has not been reported. This study aimed to extract Physalis alkekengi L. calyx soluble dietary fiber (PCSDF), and the optimal extraction process was investigated using response surface methodology. After ultrasonic pretreatment, the yield of PCSDF reached 8.74 +/- 0.17% under the conditions of liquid-solid ratio of 30 mL/g, thermostable alpha-amylase concentration of 2000 U/mL, dispase concentration of 20,000 U/mL, amyloglucosidase concentration of 40,000 U/mL. For the first time, PCSDF was characterized by UV spectroscopy, infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis, and the composition of the monosaccharides, namely mannose, glucuronic acid, rhamnose, galacturonic acid, glucose, galactose, xylose, arabinose and fucose, was identified by HPLC. For antioxidant activity, the half inhibitory concentration (IC50) against DPPH, ABTS+,
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