文献类型：期刊文献

英文题名：Effects of steam explosion pretreatment on the physicochemical properties, phenolic profile and its antioxidant activities of Baphicacanthus cusia (Nees) Bremek. leaves

作者：Xue, Xingying[1,2] Qi, Zhiwen[1] Zhang, Changwei[1] Kong, Xianghui[1] Lei, Jiandu[2] Zhou, Hao[1] Wang, Chengzhang[1]

第一作者：Xue, Xingying;薛兴颖

通信作者：Zhou, H[1];Wang, CZ[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China

年份：2024

卷号：214

外文期刊名：LWT-FOOD SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20244817450502);Scopus(收录号：2-s2.0-85210301701);WOS:【SCI-EXPANDED(收录号:WOS:001370834300001)】；

基金：The study was supported by the National Key Research and Devel-opment Program of China (Grant No. 2022YFD2200605) and the Guizhou Provincial Key Technology R &D Program (No.2023244) .

语种：英文

外文关键词：Baphicacanthus cusia (Nees) Bremek. leaves; Steam explosion; Extraction kinetics; Phenolic compounds; Antioxidant

摘要：The intention of this work is to explore the effects of steam explosion (SE) pretreatment on physical properties, phenolic components and antioxidant activities of Baphicacanthus cusia (Nees) Bremek (BCB) Leaves. Under optimal SE condition of 1.3 MPa for 30s, a significant 74.52 % increase in total phenolic content and 38.16-109.14 % rise in antioxidant activities were achieved. According to Fick's second law, the increase in SE intensity improved the diffusion efficiency of phenolics, increasing the rate constant from 2.79 x 10_2 min_ 1 to 21.85 x 10_2 min_ 1. In addition, 9 main phenolic components of BCB leaves extracts were further identified by HPLC-IT-TOF-MS2, and the effects of SE treatment on their contents were analyzed. The results suggested SE process enhanced the dissolution of phenolics and caused the degradation of primary flavonoid glycosides into aglycones. Moreover, SE also induced the isomerization of chlorogenic acid into neochlorogenic acid. This study will help to advance the high-value development and application of phenolics in BCB leaves.