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author:

Cheng Quan (Cheng Quan.) [1] | Yang Fang (Yang Fang.) [2] | Wang Dan-hong (Wang Dan-hong.) [3] | Lin Zhen-yu (Lin Zhen-yu.) [4] (Scholars:林振宇) | Qiu Bin (Qiu Bin.) [5] (Scholars:邱彬)

Indexed by:

EI Scopus SCIE PKU CSCD

Abstract:

The present paper presented a fast and non-destructive method for the discrimination of minnan oolong tea varieties by near-infrared spectroscopy technology. Two hundred ten samples including Tieguanyin, Huangjingui, Benshan, Maoxie and Meizhan were collected in different tea plantations of Minnan. NIR spectra of 1 100 similar to 1 300 nm and 1 649 similar to 2 498 nm were successfully obtained. Prediction model was built by principal component analysis (PCA), and the effects of multiplicative scatter correction(MSC) and standard normal variate(SNV) on the model were observed and compared. It was indicated that the effect of MSC on the model was superior for the effect of SNV because the classification accuracy of model for the calibration samples reached 96%, and this number to the prediction samples was about 90%. These results demonstrated that the near-infrared spectroscopy method established could be an efficient and accurate way for the discrimination of minnan oolong teas and would have a strong practical value.

Keyword:

Euclidean distance discrimination means Near-infrared spectroscopy(NIRS) Oolong tea Principal component analysis (PCA) Varieties identify

Community:

  • [ 1 ] [Cheng Quan]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fuzhou 350108, Peoples R China
  • [ 2 ] [Lin Zhen-yu]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fuzhou 350108, Peoples R China
  • [ 3 ] [Qiu Bin]Fuzhou Univ, Key Lab Anal & Detect Food Safety, Dept Chem,Minist Educ, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fuzhou 350108, Peoples R China
  • [ 4 ] [Yang Fang]Fujian Enry Exit Inspect &Quarantine Bur PRC, Fuzhou 350001, Peoples R China
  • [ 5 ] [Wang Dan-hong]Fujian Enry Exit Inspect &Quarantine Bur PRC, Fuzhou 350001, Peoples R China

Reprint 's Address:

  • [Yang Fang]Fujian Enry Exit Inspect &Quarantine Bur PRC, Fuzhou 350001, Peoples R China

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Source :

SPECTROSCOPY AND SPECTRAL ANALYSIS

ISSN: 1000-0593

CN: 11-2200/O4

Year: 2014

Issue: 3

Volume: 34

Page: 656-659

0 . 2 9 2

JCR@2014

0 . 7 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:268

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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