7种梨子的香气成分

Analysis aroma components in seven kinds of pears by SPME coupled with GC-MS

研究不同种类7种梨子的香气成分.用固相微萃取和气相色-谱质谱联用仪对梨子中的香气成分进行分析测试.从7种梨子中共鉴定出14种香气化学成分.其中酯类10种,烯烃类4种.梨子香气中主要成分为酯类,次要成分为烯烃,含量较多的成分为是乙酸己酯、α-法呢烯.酯类和烯烃类香气成分可以作为梨子品质评价的指标之一.

Aroma components in seven kinds of pears were investigated. Aroma components in pear were determined and analyzed by method of solid - phase microextraction （SPME） coupled with gas chromatography - mass spectrometry （GC/MS）. Fourteen components including ten esters and four alkenes were identified from seven kinds of pears. Major aroma components in pear were esters, minor were alkenes acetic acid hexyl ester and alpha - farnsene were the two main constituents. It was cleared that aroma components of esters and alkenes should be a guideline for quality evaluation of pears.