文献类型：期刊文献

中文题名：卡特兰不同花期的香气成分及其变化

英文题名：Changes of Aroma Components in Cattleya in Different Florescence

作者：郑宝强[1] 赵志国[2] 任建武[2] 王雁[1]

第一作者：郑宝强

机构：[1]中国林业科学研究院林业研究所,国家林业局林木培育重点实验室;[2]北京林业大学生物科学与技术学院

年份：2014

卷号：27

期号：5

起止页码：651-656

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：中央级公益性科研院所专项"卡特兰新品种选育和种苗快繁研究"(K0060);北京市园林绿化局计划项目(Y1HH200900304)

语种：中文

中文关键词：卡特兰;花期;香气成分;GC/MS技术

外文关键词：Cattleya ; florescence ; aroma components ; GC/MS

分类号：S682.31

摘要：采用活体植株动态顶空套袋-吸附采集法与GC/MS(气相色谱/质谱联用)分析技术,研究了卡特兰‘大新1号’的香气成分及不同花期的香气变化规律。结果表明:卡特兰花蕾期的香气组成成分有42种,始花期有39种,盛花期有66种,衰落期有56种;随着花朵的开放,烯类化合物的相对含量呈先上升后下降的趋势,烷烃类和苯类化合物的相对含量总体呈上升趋势,醇类和醛酮类化合物的相对含量总体呈下降趋势。从感官分析与GC/MS的测试结果综合判断,烯类物质是影响卡特兰香气的重要化合物,3,7-二甲基-1,3,6-辛三烯、α-蒎烯、β-月桂烯、D-柠檬烯、苯甲醛、苯甲酸甲酯是卡特兰‘大新1号’的特征香气化合物。
The changes of aroma components in Rhyncholaeliocattleya King of Taiwan ＇ Ta Shin #1 ＇ in different flo- rescence were analyzed by dynamic headspace collection and TCT-GC/MS. The results indicted that there were 42 components at bud stage, 39 at first flowering dates, 66 at flowering stage and 56 at declining period. With the flow- er blooming and senescence, the contents of alkenes increased at first and then decreased, the contents of alkanes and benzenes increased, while the contents of alcohol and aldehydes decreased. Based on the results of organoleptic evaluation and GC/MS, it was found that alkenes was the most important compounds for ＇ Ta Shin #1 ＇ volatile. 3,7-dimethyl-1,3,6-Octatriene, Alpha. -pinene, Beta-myrcene, D-limonene, benzaldehyde, and benzoic acid methyl ester were the characteristic constituents of aroma.