Dynamic variation of volatile organic compounds from the needles of Pinus sylvestnis var. mongolica Litv.

Pre-concentrated system combined GC-MS was evaluated for determination of volatile organic compounds(VOCs) from Pinus sylvestnis var. mongolica Litv. using SUMMA canister for sampling. A total of 104 volatile compounds were identified. The main volatile components were (+)-2-caren (36.84%), Camphene (8.97%), beta.-Pinene (5.52%), (+)-Camphene (22.28%), Tricyclene(3.06%) in spring. Major volatiles identified included 2-chloro-1-Propene(34.31%), 1,1,3,3-tetrachloro-2-propanone(17.58%), D-Limonene(3.95%), caryophyllene(4.45%) in summer. The main volatile components were Sabinene(11.35%), beta.-Myrcene(4.01%), beta.-Pinene(6.88%), Camphene(9.05%), 3-Octen-5-yne,2,7-dimethyl-(E)-(59.19%) in autumn. It will be able to promote the development of the healthy human settlements and ecological city when P. sylvestnis var. mongolica was used appropriately.