食品科学 ›› 2013, Vol. 34 ›› Issue (1): 65-68.

• 基础研究 • 上一篇    下一篇

芦笋不同颜色、粗细和部位的游离氨基酸含量

车兰兰1,李卫华2,林勤保1,*,宋 欢2   

  1. 1.山西大学应用化学研究所 2.山西出入境检验检疫局
  • 收稿日期:2011-11-02 修回日期:2012-12-04 出版日期:2013-01-15 发布日期:2013-01-07
  • 通讯作者: 林勤保 E-mail:qblin@sxu.edu.cn
  • 基金资助:

    国家质检总局科技计划项目

Effect of Color, Thickness and Part on Free Amino Acid Contents in Asparagus

  • Received:2011-11-02 Revised:2012-12-04 Online:2013-01-15 Published:2013-01-07

摘要: 采用柱前衍生反相高效液相色谱法对不同颜色(白、绿)、粗细和部位(尖部、中部、根部)的芦笋中游离氨基酸含量进行测定,并采用非参数检验法分析其对游离氨基酸含量的影响。结果表明:在不同芦笋段中能检测出至少15种游离氨基酸,且含量存在差异;所测样品中两种酰胺Gln和Asn含量最高;两种酸性氨基酸Glu和Asp含量次之;Cys2、Trp、Leu和Ile含量最少,Met未能检测到。芦笋的不同颜色、粗细和部位对某些氨基酸含量有显著影响。

关键词: 芦笋, 游离氨基酸, 颜色, 粗细, 部位

Abstract: This work presents a reversed phase high-performance liquid chromatography (RP-HPLC) method for the determination of free amino acids in asparagus after precolumn derivatization. The effects of different colors, thicknesses and parts on free amino acid contents in asparagus were investigated by non-parametric tests. At least 15 free amino acids with were detected and their contents showed differences among three different parts of asparagus (bottom, middle and top). All investigated samples were highest in asparagine and glutamine, glutamic acid and aspartic acid were in the middle, the contents of cysteine, trytophan, leucine and isoleucine were the lowest, and methionine was not detected. Different colors, thicknesses and parts had significant effects on free amino acid contents in asparagus.

Key words: asparagus, free amino acid, color, thickness, part

中图分类号: