您好，欢迎访问广东省农业科学院 机构知识库！
广东省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Carotenoid-Derived Flavor Precursors from Averrhoa carambola Fresh Fruit

文献类型： 外文期刊

作者： Jia, Xuchao 1 ; Yang, Dan 2 ; Yang, Yue 2 ; Xie, Haihui 2 ;

作者机构： 1.Minist Agr & Rural Affairs, Guangdong Key Lab Agr Prod Proc, Guangdong Acad Agr Sci, Key Lab Funct Foods,Sericultural & Agrifood Res I, Guangzhou 510610, Guangdong, Peoples R China

2.Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Key Lab South China Agr Plant Mol Anal & Genet Im, Guangzhou 510650, Guangdong, Peoples R China

3.Jining Med Univ, Sch Publ Hlth, Jining 272067, Peoples R China

4.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China

关键词： Averrhoa carambola; star fruit; flavor precursor; C-13-norisoprenoid glucoside; C-15 norisoprenoid

期刊名称：MOLECULES （ 2020影响因子：4.411； 五年影响因子：4.587 ）

ISSN： 1420-3049

年卷期： 2019 年 24 卷 2 期

页码：

收录情况： SCI

摘要： The fruit of Averrhoa carambola L. (Oxalidaceae), commonly known as star fruit or carambola, is popular in tropical and subtropical regions. Carotenoid-derived components, mainly C-13- and C-15-norisoprenoids, contribute greatly to the flavor of star fruit. Previously reported norisoprenoids were tentatively identified by GC-MS analysis after enzymatic hydrolysis. To gain accurate information about glycosidically bound flavor precursors in star fruit, a phytochemical study was conducted, which led to the isolation of 16 carotenoid derivativesOne new C-13-norisoprenoid glucoside, (5R,6S,7E,9R)-5,6,9-trihydroxy-7-megastigmene 9-O--d-glucoside (1); one new C-15-norisoprenoid, (6S,7E,10S)-(9,15)-10-hydroxyabscisic alcohol (11); and 14 known ones, of which 12 were in glucoside form. The structures of the two new compounds were elucidated on the basis of extensive spectroscopic data analysis and chemical reaction. Compound 11 was a rare C-15-norisoprenoid with a double bond between C-9 and C-15, and its possible biogenetic pathway was proposed. The known compounds were identified by comparison of their mass and nuclear magnetic resonance (NMR) data with those reported in the literature. The structure identification of one new (1) and seven known (3-7, 9, and 10) C-13-norisoprenoid glucosides from the genus Averrhoa for the first time enriches the knowledge of carotenoid-derived flavor precursors in star fruit.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广东省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台