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A comparison of chemical composition, bioactive components and hypoglycemic activity of Stigma maydis obtained from different growing times

文献类型： 外文期刊

作者： Zhang, Yi 1 ; Pang, Jinxin 1 ; Yao, Lianmou 1 ; Wang, Chunfang 1 ; Chen, Bingjie 1 ; Zheng, Qi 3 ; Hu, Yingxiong 2 ; Qiao, Yongjin 1 ;

作者机构： 1.Shanghai Agr Prod Preservat & Proc Engn Technol Re, Shanghai, Peoples R China

2.Shanghai Acad Agr Sci, Crop Breeding & Cultivating Inst, Shanghai 201403, Peoples R China

3.Shanghai Shuneng Irradiat Technol Co Ltd, Shanghai, Peoples R China

关键词： Stigma maydis; maturity stage; chemical composition; bioactive components; hyperglycemic activity

期刊名称：COGENT FOOD & AGRICULTURE （ 影响因子：2.0； 五年影响因子：2.6 ）

ISSN： 2331-1932

年卷期： 2024 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Stigma maydis (SM) possesses remarkable nutritional value due to the presence of health-protective chemical constituents in it. Despite its commercial uses, there is a lack of information on changes in the nutritional profile of SM during Shenke 601 waxy corn development by following four different maturity stages (silking stage; blister stage; milky stage; dough stage). In this study, the ideal times for the development of seven active compounds (polysaccharides, saponin, rutin, luteolin, quercetin, kaempferol and chlorogenic acid) were at the silking stage. The total flavonoid and total phenol content increased as the SM matured. Except for the above-mentioned active compounds, the content of major nutritional components of dough stage was higher than that of three other stages. The extract of Stigma maydis exhibited good alpha-amylase, alpha-glucosidase and pancreatic lipase inhibition activities. The ethanolic SM extracts showed better inhibitory effects than aqueous SM extracts with a dose-effect relationship. The hypoglycemic activity of ethanolic extract was higher than that of aqueous extract at each stage. This provided an important basis for the application of SM.

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