大蒜辣素UPLC检测体系优化及其在大蒜资源评价中的应用

被引:11
作者
王海平
李锡香
刘新艳
沈镝
邱杨
宋江萍
张晓辉
机构
[1] 中国农业科学院蔬菜花卉研究所
关键词
大蒜; 大蒜辣素; 超高效液相色谱(UPLC);
D O I
10.13430/j.cnki.jpgr.2012.06.025
中图分类号
S633.4 [大蒜];
学科分类号
090202 ;
摘要
大蒜是重要的调味蔬菜,大蒜辣素的含量是评价大蒜品质的最重要的一项指标。本研究通过对样品处理、提取方法和检测方法的研究,建立了完善的大蒜辣素超高效液相色谱(UPLC)检测方法:使用UPLC BEH C18色谱柱,流动相为甲醇∶水=1∶1,检测波长为254nm,进样体积为1μl,流速为0.3ml/min。大蒜辣素在2.04~510mg/L范围内呈良好线性关系(R2=0.9991)。利用建立的方法对212份大蒜鳞茎的大蒜辣素含量进行检测,发现供试212份大蒜资源的大蒜辣素含量差异显著,含量分布在0.82%~3.01%之间,最高含量与最低含量之间相差近4倍。
引用
收藏
页码:936 / 945
页数:10
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