Characterization of the volatile components in green tea by IRAE-HS-SPME/GC-MS combined with multivariate analysis.

ABSTRACT: In the present work, a novel infrared-assisted extraction coupled to headspace solid-phase microextraction (IRAE-HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS) was developed for rapid determination of the volatile components in green tea. The extraction parameters such as fiber type, sample amount, infrared power, extraction time, and infrared lamp distance were optimized by orthogonal experimental design. Under optimum conditions, a total of 82 volatile compounds in 21 green tea samples from different geographical origins were identified. Compared with classical water-bath heating, the proposed technique has remarkable advantages of considerably reducing the analytical time and high efficiency. In addition, an effective classification of green teas based on their volati

SUBMITTER: Yang YQ 

PROVIDER: S-EPMC5832268 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature