关键词: 刺槐属；鲜花；芳香成分；固相微萃取；气相色谱&mdash, 质谱联用

Abstract:

Aroma components in fresh flowers from 6 germplasm of Robinia neo-mexicana var. Luxurians，R. viscosa，R. pseudoacacia‘Ziyan Qingshan’，R. pseudoacacia‘Duocai Qingshan’，L2F and L68F were analyzed by Micro-extraction and GC–MS technology. The results showed that：（1）Fifty-three kinds of volatile compounds were identified in fresh flowers from 6 cultivars of genus Robinia，mainly including terpenes，alcohols，esters，ketones，aldehydes，arenes and alkanes. Flowers aromatic components of the 6 samples consist of terpenes，alcohols and esters. The relative amount of components was as follows：terpene > alcohol > esters. Terpene is the main aroma components.（2）The highest content of terpenes and alcohols of red flowers of R. neo-mexicana var. luxurians and R. viscosaare (E)-4,8- dimethylnona-1,3,7-triene, 1-octen-3-ol. The highest content of terpenes and alcohols from the rest 4 samples with white flowers are beta-ocimene，linalool.（3）According to the relative content and type of volatile matter，we defined the flowers fragrance of R. neo-mexicana var. luxurians and R. pseudoacacia ‘Duocai Qingshan’as light flavor，，R. pseudoacacia‘Ziyan Qingshan’，L2F and L68F as strong flavor. Robinia viscosa

Key words: genus Robinia；flower；aroma component；HS-SMPE；GC&ndash, MS