Authors: Lijuan Ma Yang Qiao Liping Du Yunfei Li Shiyong Huang Fei Liu Dongguang Xiao
Publish Date: 2017/01/21
Volume: 10, Issue: 7, Pages: 2481-2489
Abstract
A novel method using combined temperatures in a single headspace solidphase microextraction HSSPME procedure was proposed in this research to extract the volatile compounds when analyzing the volatile profile of black tea by GCMS Parameters that influenced the extraction were optimized and the optimal conditions for the proposed method were as follows the saturation of sodium chloride of 100 the ratio of tea to water of 1592 and a total extraction time of 60 min comprising 119 min at 30 °C 174 min at 50 °C and 307 min at 70 °C Under these optimal conditions the total peak area of the volatile compounds and the number of the identified compounds using the proposed method were both more than those by using the conventional method which indicated that temperature affects the extraction efficiency of compounds with different volatilities Using combined temperatures in a single HSSPME procedure could obtain more information including contents and number of the volatile compounds identified in the determination of volatile compounds with different volatilities of black tea and other complex substratesLijuan Ma declares that she has no conflict of interest Yang Qiao declares that she has no conflict of interest Liping Du declares that she has no conflict of interest Yunfei Li declares that he has no conflict of interest Shiyong Huang declares that he has no conflict of interest Fei Liu declares that he has no conflict of interest Dongguang Xiao declares that he has no conflict of interest
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