Comparison of Sampling Methods Headspace and SPME GC-MS for Analysis of Volatile Components in Garlic
In order to explore the pre-treatment methods for analyzing the volatile components of garlic , in this research,fresh garlic and the market sweet and sour pickled garlic were used as materials,Headspace (HS) sampling and solid phase micro extraction(SPME)to extract the volatile components respectively and analyzed by GC-MS. The results showed that the volatile components derived from HS sampling and SPME differs. The kinds of volatile components and it's relative content,relative content of sulfur compounds identified derived from Headspace sampling were more than from SPME. Totally 11 and 6 sulfur compounds were detected in fresh garlic and sweet and sour pickled garlic in both methods respectively, but it's relative content is higher from HS sampling also. Compared with SPME,Headspace sampling operation is simple, fast, can be used for the determination of volatile components of garlic and its processed products.
NETL
NSTL
万方数据
维普
