为了研究锦橙果实发育过程中香气成分的组成及变化,使用气相色谱-质谱联用仪分析了10月、11月、12月、翌年1月的锦橙鲜果的挥发性成分,分别检测到47,50,57,46种成分,主要成分为烃类、醛类、醇类和酯类。挥发性物质的总峰面积以及烃类、酯类在12月的果实中达到最大,反式-2-己烯醛、反式-2-己烯-1-醇、顺式-3-己烯-1-醇以及香叶醇这几种醇醛类物质都随着果实的成熟而增加。柠檬烯、芳樟醇、β-月桂烯、γ-松油烯、α-蒎烯、丁酸乙酯、反式-2-己烯-1-醇和顺式-3-己烯-1-醇和香叶醛是锦橙汁的特征香气化合物。除香叶醛和丁酸乙酯外,这些特征成分均在12月采收的果实中最高。因此,应选择特征香气化合物含量最高的12月初采收锦橙果实进行加工。
The volatile compounds of Jinchen sweet orange fruit harvested on Oct.,Nov.,Dec,Jan.were analyzed by GC-MS,and 47,50,57,46 components were identified,respectively.Hydrocarbons,aldehydes,alcohols and esters were the major constituents.The results showed that the peak area of total volatile compounds,hydrocarbons,and esters reached the highest in fruits harvested on Dec.The contents of(E)-2-hexenal,(E)-2-hexen-1-ol,(Z)-3-Hexen-1-ol and geraniol increased as ripening proceeded.Limonene,linalool,β-myrcene,α-pinene,ethyl butanoate,(E)-2-hexen-1-ol and(Z)-3-Hexen-1-ol and geranial were the characteristic aroma components of Jinchen sweet orange juice.The optimal harvest time of Jinchen sweet orange was in Dec.when the characteristic aroma presented enough high levels,except for geranial and ethyl butanoate.