Study on Release Characteristics of Phytoncidere in Living Branches and Leaves of Taxus chinensis var. mairei

In order to understand the main components and release characteristics of phytoncidere from the living branches and leaves of Taxus chinensis var. mairei, gas chromatography-mass spectrometry (GC/MS) method was used for identifying and analyzing the research object of Taxus chinensis var. mairei from forest health and wellness base in Sanjiang Town, Chongzhou City, Sichuan Province. The results showed that 145 kinds of BVOCs were identified in the chemical components released from the living branches and leaves of Taxus chinensis var. mairei, accounting for 96.29% of the total volatiles identified in the chemical constituents released from the living branches and leaves of Taxus chinensis var. mairei, and the relative content was mainly terpenes. The relative content of monoterpene and sesquiterpene released from Taxus chinensis var. mairei was lower in the morning and evening and higher in the noon except isolongifolene, but the content of other components changed little. It is recommended that the forest therapy activities should be carried out around 11:00 every day, if the release characteristics of phytoncidere from Taxus chinensis var. mairei were considered.