GC—TOF MS结合化学计量学用于安化黑茶的识别
CSTR:
作者:
作者单位:

(1. 湖南出入境检验检疫局,湖南 长沙 410004;2. 湖南省检验检疫科学技术研究院,湖南 长沙 410100;3. 东港出入境检验检疫局,辽宁 东港 118300; 4. 长沙环境保护职业技术学院,湖南 长沙 410004)

作者简介:

颜鸿飞,男,湖南出入境检验检疫局高级工程师,硕士。

通讯作者:

张帆(1985—),女,长沙环境保护职业技术学院副教授,博士。E-mail:amily9281@163.com

中图分类号:

基金项目:

湖南省科技计划项目(编号:2015JC328);粮油深加工与品质控制湖南省2011协同创新项目资助(编号:湘教通\[2013\]448号)


Discrimination of Anhua dark tea by gas chromatography-time of flight mass spectrometry combined with chemometrics
Author:
Affiliation:

(1. Hunan Entry-Exit Inspection and Quarantine Bureau, Changsha, Hunan 410004, China; 2. Hunan Academy of Science and Technology for Inspection and Quarantine, Changsha, Hunan 410004, China; 3. Donggang Entry-Exit Inspection and Quarantine Bureau, Donggang, Liaoning 118300, China;4. Changsha Environmental Protection College, Changsha, Hunan 410004, China)

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    采用顶空固相微萃取联合气相色谱—飞行时间质谱(GC—TOF MS)对安化黑茶及其它产地黑茶中的挥发性成分进行检测,对41种共有挥发性组分进行定性定量分析。应用化学计量学统计工具对数据进行变量筛选、主成分分析法(PCA)和偏最小二乘判别分析(PLS-DA),筛选出安化黑茶的26个显著性差异香气成分,通过主成分得分投影图直观反映样本间的聚类趋势和分类信息,对安化黑茶与不同产地黑茶样品及其它种类茶叶进行有效区分和识别,找出14个对安化黑茶识别分类起着重要作用的挥发成分。结果表明,基于茶叶中挥发性成分差异的GC—TOF MS分析结合化学计量学统计方法用于安化黑茶识别是可行的。

    Abstract:

    The volatile components in Anhua and other dark teas were analyzed by headspace solid phase microextraction (HS-SPME) combined with gas chromatography-time of flight mass spectrometry (GC-TOF MS). About 41 volatile compounds were analyzed qualitatively and quantitatively. A classification model and predict the authenticity obtained from variance analysis, principal component analysis (PCA) and partial least squares discriminate analysis (PLSDA). In addition, the 26 compounds significant impacting on the classification were screened out from Anhua dark tea. The straight forward classification trend of Anhua dark tea and other samples was visualized through projection score plots obtained by PCA. Effective classification and identification of Anhua dark tea, other origin dark tea and other kinds were carried out. The 14 important components for classification were found. The results showed that the developed GC-TOF MS method combined with chemometrics based on the volatile components in tea could be used to discriminate Anhua dark tea.

    参考文献
    相似文献
    引证文献
引用本文

颜鸿飞,彭争光,李蓉娟,等. GC—TOF MS结合化学计量学用于安化黑茶的识别[J].食品与机械,2017,33(8):34-37,65.
YANHongfei, PENGZhengguang, LIRongjuan, et al. Discrimination of Anhua dark tea by gas chromatography-time of flight mass spectrometry combined with chemometrics[J]. Food & Machinery,2017,33(8):34-37,65.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2023-03-10
  • 出版日期:
文章二维码
×
《食品与机械》
友情提示
友情提示 一、 近日有不少作者反应我刊官网无法打开,是因为我刊网站正在升级,旧网站仍在百度搜索排名前列。请认准《食品与机械》唯一官方网址:http://www.ifoodmm.com/spyjx/home 唯一官方邮箱:foodmm@ifoodmm.com; 联系电话:0731-85258200,希望广大读者和作者仔细甄别。