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[Analysis of the volatile components in Minnan oolong tea by headspace solid phase microextraction coupled with comprehensive two-dimensional gas chromatography-time of flight mass spectrometry and the application in its variety identification].
Se Pu. 2015 Feb; 33(2):174-81.SP

Abstract

A method to analyze the volatile components in Minnan oolong tea was developed based on headspace solid phase microextraction (HS-SPME) coupled with comprehensive two-dimensional gas chromatography-time of flight mass spectrometry (GC×GC-TOF MS). Volatile compounds of 48 oolong tea samples with different qualities and production seasons from five varieties (Tieguanyin, Huangjingui, Benshan, Maoxie and Meizhan) were extracted by HS-SPME and analyzed by GC×GC-TOF MS. More than 2 000 peaks were obtained from each sample, and 51 common compounds were tentatively identified by comparison with the standard mass spectrum databases, retention indices and structure spectra. The projection score of the common compounds obtained from principal component analysis (PCA) had presented a straightforward classification trend for different oolong tea varieties. In addition, 9 compounds which had significant impact on the classification were selected by stepwise discriminate analysis, and used as variables to establish four discriminated functions by Fisher's discriminate analysis (FDA). The accuracy for the recognition of 48 samples was 97. 9%. The results had demonstrated the feasibility of the method to be used to discriminate the oolong tea varieties.

Authors

Cheng Q
No affiliation info available
Yang F
No affiliation info available
Li J
No affiliation info available
Lu S
No affiliation info available
Lan J
No affiliation info available
Jiang J
No affiliation info available

MeSH

Discriminant AnalysisGas Chromatography-Mass SpectrometrySolid Phase MicroextractionTeaVolatile Organic Compounds

Pub Type(s)

Journal Article

Language

chi

PubMed ID

25989691

Citation

Cheng, Quan, et al. "[Analysis of the Volatile Components in Minnan Oolong Tea By Headspace Solid Phase Microextraction Coupled With Comprehensive Two-dimensional Gas Chromatography-time of Flight Mass Spectrometry and the Application in Its Variety Identification]." Se Pu = Chinese Journal of Chromatography, vol. 33, no. 2, 2015, pp. 174-81.
Cheng Q, Yang F, Li J, et al. [Analysis of the volatile components in Minnan oolong tea by headspace solid phase microextraction coupled with comprehensive two-dimensional gas chromatography-time of flight mass spectrometry and the application in its variety identification]. Se Pu. 2015;33(2):174-81.
Cheng, Q., Yang, F., Li, J., Lu, S., Lan, J., & Jiang, J. (2015). [Analysis of the volatile components in Minnan oolong tea by headspace solid phase microextraction coupled with comprehensive two-dimensional gas chromatography-time of flight mass spectrometry and the application in its variety identification]. Se Pu = Chinese Journal of Chromatography, 33(2), 174-81.
Cheng Q, et al. [Analysis of the Volatile Components in Minnan Oolong Tea By Headspace Solid Phase Microextraction Coupled With Comprehensive Two-dimensional Gas Chromatography-time of Flight Mass Spectrometry and the Application in Its Variety Identification]. Se Pu. 2015;33(2):174-81. PubMed PMID: 25989691.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Analysis of the volatile components in Minnan oolong tea by headspace solid phase microextraction coupled with comprehensive two-dimensional gas chromatography-time of flight mass spectrometry and the application in its variety identification]. AU - Cheng,Quan, AU - Yang,Fang, AU - Li,Jie, AU - Lu,Shengyu, AU - Lan,Jinchang, AU - Jiang,Jinbin, PY - 2015/5/21/entrez PY - 2015/5/21/pubmed PY - 2015/9/2/medline SP - 174 EP - 81 JF - Se pu = Chinese journal of chromatography JO - Se Pu VL - 33 IS - 2 N2 - A method to analyze the volatile components in Minnan oolong tea was developed based on headspace solid phase microextraction (HS-SPME) coupled with comprehensive two-dimensional gas chromatography-time of flight mass spectrometry (GC×GC-TOF MS). Volatile compounds of 48 oolong tea samples with different qualities and production seasons from five varieties (Tieguanyin, Huangjingui, Benshan, Maoxie and Meizhan) were extracted by HS-SPME and analyzed by GC×GC-TOF MS. More than 2 000 peaks were obtained from each sample, and 51 common compounds were tentatively identified by comparison with the standard mass spectrum databases, retention indices and structure spectra. The projection score of the common compounds obtained from principal component analysis (PCA) had presented a straightforward classification trend for different oolong tea varieties. In addition, 9 compounds which had significant impact on the classification were selected by stepwise discriminate analysis, and used as variables to establish four discriminated functions by Fisher's discriminate analysis (FDA). The accuracy for the recognition of 48 samples was 97. 9%. The results had demonstrated the feasibility of the method to be used to discriminate the oolong tea varieties. SN - 1000-8713 UR - https://www.unboundmedicine.com/medline/citation/25989691/[Analysis_of_the_volatile_components_in_Minnan_oolong_tea_by_headspace_solid_phase_microextraction_coupled_with_comprehensive_two_dimensional_gas_chromatography_time_of_flight_mass_spectrometry_and_the_application_in_its_variety_identification]_ DB - PRIME DP - Unbound Medicine ER -