食品科学 ›› 2012, Vol. 33 ›› Issue (14): 238-241.

• 分析检测 • 上一篇    下一篇

高效液相色谱法测定15种蔬菜中的β-胡萝卜素

郑群雄,杜美霞,徐小强,刘 煌   

  1. 浙江工商大学食品与生物工程学院
  • 收稿日期:2011-06-30 修回日期:2012-05-21 出版日期:2012-07-25 发布日期:2012-07-27
  • 通讯作者: 郑群雄 E-mail:zhengqunxiong@mail.zjgsu.edu.cn

Determination of β-Carotene in 15 Vegetables by High Performance Liquid Chromatography

  • Received:2011-06-30 Revised:2012-05-21 Online:2012-07-25 Published:2012-07-27

摘要: 应用高效液相色谱法测定国内常用的15种蔬菜中β-胡萝卜素含量。蔬菜中的β-胡萝卜素经超声提取,用Kromasil C18(4.6mm×300mm,5μm)色谱柱,甲醇-四氢呋喃(THF)-2,6-二叔丁基-4-甲基苯酚(BHT)(9:1:0.01,V/V)为流动相,紫外检测器检测,检测波长为448nm。结果表明,β-胡萝卜素出峰时间短(21min),检出限低(0.075μg/mL),在1~50μg/mL质量浓度范围内线性关系良好(R2=0.9997),平均加标回收率达97.84%(n=5)。该方法可避免β-胡萝卜素在预处理过程中被氧化,重复性好、操作简便、结果可靠,可用于多种新鲜蔬菜中β-胡萝卜素含量的测定。

关键词: 高效液相色谱, 蔬菜, β-胡萝卜素, 快速测定

Abstract: A high performance liquid chromatography (HPLC) method was developed for determining β-carotene in 15 vegetables. β-carotene was extracted from vegetables by ultrasonic-assisted extraction, separated on a kromasil C18 column (4.6 mm × 300 mm, 5 μm) using a mobile phase consisting of methanol-tetrahydrofuran (THF)-butylated hydroxytoluene (BHT) (9:1:0.01, V/V), and detected with a UV detector at 448 nm. The proposed method was characteristics of short running time (21 min), sensitive detection limit (0.075 μg/mL), excellent linear relationship (R2=0.9997) and high precision (97.84% average recovery rate). Moreover, this method provided an effective strategy to prevent the oxidation of β-carotene in fresh vegetable samples.

Key words: high performance liquid chromatography (HPLC), vegetables, β-carotene, rapid determination

中图分类号: