不同桂花品种游离态香气物质分析  

Analysis of Free Aromatic Components of Different Osmanthus fragrans Cultivars

作　　者：朱琳琳[1] 周婉飞 宁璇 朱君 席婉 曾旭梅 熊康舜 王彩云[1] 罗靖 郑日如[1] ZHU Linlin;ZHOU Wanfei;NING Xuan;ZHU Jun;XI Wan;ZENG Xumei;XIONG Kangshun;WANG Caiyun;LUO Jing;ZHENG Riru(Key Laboratory for Biology of Horticultural Plants,Ministry of Education,Key Laboratory for Urban Agriculture of Central China,Ministry of Agriculture and Rural Areas,College of Horticulture&Forestry Sciences,Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]华中农业大学园艺植物生物学教育部重点实验室,农业农村部华中都市农业重点实验室,武汉430070

出　　处：《园艺学报》2022年第11期2395-2406,共12页Acta Horticulturae Sinica

基　　金：国家自然科学基金面上项目(3217180553);中央高校基本科研业务费专项(2662020YLPY011)。

摘　　要：采用甲基叔丁基醚(MTBE)溶剂萃取结合气相色谱—质谱联用法(GC–MS)对20个常见的桂花栽培品种的花瓣进行了游离态香气物质的检测和比较。共鉴定出125种游离态物质,包括萜类、芳香族化合物、烷烃类、醛类、醇类和酯类等,其中萜类物质种类丰富、含量最高,是最主要的香气活性物质。‘玉帘银丝’与‘日香桂’的游离态香气物质总含量较高,‘橘叶四季桂’与‘日香桂’的萜类物质含量较高,是香气浓郁的优良品种。‘小叶朱砂桂’‘满条红’在丹桂品种群中游离态萜类物质含量最高,香气浓郁且不易褐化,是值得推广的特色丹桂品种。‘日香桂’的β–紫罗酮、γ–癸内酯和芳樟醇含量较高,‘橘叶四季桂’的芳樟醇氧化物含量较高,这些物质具有抗菌、镇静、提神等重要保健功能,可作为特色功能品种推广。In this study,methyl tert-butyl ether(MTBE)solvent extraction combined with gas chromatography-mass spectrometry(GC–MS)was applied to detect the free aroma components in petals of 20 common cultivars of Osmanthus fragrans.The results showed that 125 kinds of free components were identified in 20 cultivars,which were significantly more than the corresponding volatile aroma components.The aroma components mainly included terpenoids,benzenoids,alkanes,aldehydes,alcohols and esters.Terpenoids were the dominant aroma active components.Among the 20 cultivars,‘Yulian Yinsi’and‘Rixianggui’contained the maximum contents of free aroma components.‘Juye Sijigui’and‘Rixianggui’contained the high contents of terpenoids and were rich in aroma.Luteus Group generally had low aroma components and hardly tended to browning‘Xiaoye Zhushagui’and‘Mantiaohong’had the highest contents of terpenoids in Luteus Group,thus they were recommended as characteristic cultivars for industrial application.‘Rixianggui’was a potential cultivar because it had considerably high contents ofβ-ionone,γ-decalactone and linalool.‘Juye Sijigui’was also an ideal cultivar with high contents of linalool oxide.

关 键 词：桂花 游离态香气物质 萜类物质 品种 溶剂萃取 GC-MS 

分 类 号：S685.13[农业科学—观赏园艺]