Analysis of Floral Fragrance Compounds of Chimonanthus praecox with Different Floral Colors in Yunnan, China
Analysis of Floral Fragrance Compounds of Chimonanthus praecox with Different Floral Colors in Yunnan, China
复制标题
云南不同花色腊梅花香成分分析
DOI：
10.3390/separations8080122
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发表时间：
2021-08-01
期刊：
影响因子：
2.6
通讯作者：
Wang, Shu
中科院分区：
文献类型：
--
作者：
Meng, Liubei;Shi, Rui;Wang, Shu
为了更好地了解云南蜡梅科蜡梅属植物蜡梅的花香成分，采用顶空气相固相微萃取结合气相色谱-质谱法分析了4种不同花色蜡梅的香气成分。共鉴定出31种花香化合物，其中萜类、醇类、酯类、酚类和杂环类化合物为主要成分。有趣的是，从早熟禾花中鉴定出的花香化合物。共色包括乙酸苄酯、α-罗勒烯、丁香酚、吲哚和苯甲醇。相反，在早熟禾中检测到了β-罗勒烯、α-罗勒烯和反式-β-罗密烯等花香化合物。专利。聚类分析结果表明，早熟禾具有较强的亲缘关系。H1、h2和早熟弯曲霉C.preecox var.专利H4聚为一类，而早熟胡椒则聚为一类。专利H3在另一组中单独聚集。主成分分析表明，α-罗勒烯、苯甲醇、乙酸苄酯、乙酸肉桂酯、丁香酚和吲哚是区分云南四种不同花色的早熟禾的主要香气成分。本研究为进一步阐明蜡梅花香释放的机理和途径提供了理论依据。
In order to better understand the floral fragrance compounds of Chimonanthus praecox belonging to genus Chimonanthus of Chimonanaceae in Yunnan, headspace solid-phase microextraction combined with gas chromatography-mass spectrometry was used to analyze these compounds from four C. praecox plants with different floral colors. Thirty-one types of floral fragrance compounds were identified, among which terpenes, alcohols, esters, phenols, and heterocyclic compounds were the main compounds. Interestingly, the floral fragrance compounds identified in the flowers of C. praecox var. concolor included benzyl acetate, α-ocimene, eugenol, indole, and benzyl alcohol. By contrast, the floral fragrance compounds β-ocimene, α-ocimene, and trans-β-ocimene were detected in C. praecox var. patens. Cluster analysis showed that C. praecox var. concolor H1, H2, and C. praecox var. patens H4 were clustered in one group, but C. praecox var. patens H3 was individually clustered in the other group. Additionally, principal component analysis showed that α-ocimene, benzyl alcohol, benzyl acetate, cinnamyl acetate, eugenol, and indole were the main floral fragrance compounds that could distinguish the four C. praecox with different floral colors in Yunnan. This study provides a theoretical basis for further elucidating the mechanism and pathway of the floral fragrance release of C. praecox.