文献类型：期刊文献

英文题名：Subcritical water extraction of phenolic antioxidants with improved α-amylase and α-glucosidase inhibitory activities from exocarps of Castanea mollissima Blume

作者：Liu, Xuanchi[1] Wang, Yanhui[1] Zhang, Jiachan[2] Yan, Linlin[3] Liu, Shiqi[1] Taha, Ahmed Aboueloyoun[1] Wang, Jing[4] Ma, Chao[1]

第一作者：Liu, Xuanchi

通信作者：Ma, Chao

机构：[1] Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China; [2] Beijing Key Lab of Plant Resource Research and Development, Beijing Technology and Business University, Beijing, 100048, China; [3] National Engineering Lab for Biomass Chemical Utilization, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, 210042, China; [4] Institute of Quality Standard and Testing Technology for Agro-products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China

年份：2020

卷号：158

外文期刊名：Journal of Supercritical Fluids

收录：EI(收录号：20200408076216);Scopus(收录号：2-s2.0-85078219472)

基金：The study was financially supported by the Special Fund of Public Welfare of State Forestry Administration of the People’s Republic of China ( 201504606 ), Natural Science Foundation of China ( 31770614 ), and the Open Research Fund Program of Beijing Key Lab of Plant Resource Research and Development, Beijing Technology and Business University ( PRRD-2018-YB8 ).

语种：英文

外文关键词：Amylases - Antioxidants - Fruits

摘要：Herein, subcritical water extraction (SWE) technology was applied for the recovery of phenolics from chestnut exocarps. Results showed that extracts obtained by SWE had significantly higher extraction yield (Ye), total phenolic contents (TPC), as well as stronger antioxidant (AAs), α-amylase and α-glucosidase inhibitory activities than conventional techniques. The optimal temperature of SWE for reaching the highest Ye, TPC and AAs was 220 °C, while the strongest α-amylase and α-glucosidase inhibitory activities were observed at 120 °C. UPLC-MS/MS, heatmap and radar chart analysis revealed that the phenolic profiles of different extracts varied markedly with extraction methods, and SWE extract at 120 °C had potential application for glycemic control by non-competitively inhibiting α-amylase and/or α-glucosidase. The major components contributed to the inhibitory activities were putative chlorogenic acid and flavonoids, such as rutin and quercetin, etc. These observations suggest that SWE is a promising technology for obtaining bioactive phenolics from chestnut exocarps. ? 2019