基于UPLC-MS代谢组学技术的枣果皮黄酮类化合物分析

被引:13
作者
王乐飞 [1 ]
古绍彬 [1 ,2 ]
吴影 [1 ,2 ]
机构
[1] 河南科技大学食品与生物工程学院
[2] 河南省食品微生物工程技术研究中心食品加工与安全国家级实验教学示范中心
关键词
“三变红”枣; 特征性黄酮类化合物; 超高效液相色谱-质谱联用; 聚类分析;
D O I
暂无
中图分类号
O657.63 [质谱分析]; TS255.1 [基础科学];
学科分类号
摘要
采用超高效液相色谱-质谱联用技术,结合代谢组学分析方法,研究黄酮类化合物种类及含量与"三变红"枣果实着色间的关系。结果表明"三变红"枣果发育的S1、S2和S3时期,枣皮总黄酮呈由高到低再到高的变化趋势,其含量分别为4.94、0.95、4.45 mg/g(干质量),而与之对应时期的果实则经历了由紫红到绿白再到深红过程,枣皮着色与总黄酮含量表现为明显相关性。利用主成分分析和偏最小二乘法分析发现,3个不同发育期黄酮类化合物组成及含量的分布上具有明显差异。其中,槲皮素3-O-芸香糖苷、甲基槲皮素O-己糖苷、木犀草素O-芥子酰己糖苷、羟甲基黄酮5-O-己糖苷、柚皮素O-丙二酰己糖苷、3,4,5-三羟黄酮O-芸香糖苷、6-C-己糖基-木犀草素O-己糖苷、异牧荆素在S1中远高于S2和S3,它们被鉴定为S1期特征性黄酮类化合物,而矢车菊素O-己糖基、芹菜素O-己糖基-戊糖苷、槲皮素5-O-己糖苷-O-丙二酰己糖苷、金圣草黄素O-葡萄糖醛酸(水杨醇)醚O-二葡萄糖醛酸、金圣草黄素被认为是S3期标志性黄酮类化合物。本研究阐明了枣果发育过程中果皮颜色与黄酮类化合物的内在关系,对揭示"三变红"枣果着色机理具有重要意义。
引用
收藏
页码:155 / 161
页数:7
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