浙江省4个产区红美人柑橘果皮中香气成分的测定及差异性分析

Determination and comparative analysis of aroma components of Hongmeiren citrus peel from 4 producing areas in Zhejiang

中文关键词:  顶空固相微萃取  气相色谱-四极杆飞行时间串联质谱法  红美人  香气成分  主成分分析

英文关键词:head-space solid-phase microextraction  gas chromatography-quadrupole time of flight mass spectrometry  Hongmeiren  aroma components  principal component analysis

中文摘要:

      目的 分析浙江省4个不同产区红美人柑橘果皮中主要香气成分的差异性。方法 采用顶空固相微萃取-气相色谱-四极杆飞行时间串联质谱法测定红美人柑橘果皮中的香气成分, 经未知化合物分析软件自动解卷积后, NIST谱库检索对红美人果皮中的香气成分进行鉴定, 并用SPSS 22.0软件进行主成分分析。结果 红美人柑橘果皮中主要含有D-柠檬烯、β-月桂烯、癸醛、芳樟醇、α-蒎烯、香茅醛、壬醛、4-松油醇、γ-松油烯9种香气成分, 其中D-柠檬烯含量最高, 壬醛和4-松油醇含量相对较低; 主成分分析显示PC-1的贡献率为62.02%, PC-2的贡献率为26.42%, 解释了原香气特征变量88.44%的方差信息。结论 9种香气物质的主成分分析基本可区分4个产区的红美人。

英文摘要:

      Objective To analyze the differences of the main aroma components of Hongmeiren citrus peel from 4 different producing areas of Zhejiang province. Methods The aroma components were determined by head-space solid-phase microextraction-gas chromatography-quadrupole time of flight mass spectrometry. The data were processed by deconvolution method with unknown compound analysis software, and the aroma components were identified by NIST spectral database, then the principal components were analyzed by SPSS 22.0 software. Results There were mainly 9 kinds of aroma components in the Hongmeiren citrus peel, including D-limonene, β-myrcene, decaldehyde, linalool, α-pinene, citronelloal, nonanal, 4-terpenol and γ-terpinene, and the content of D-limonene was the highest, the content of nonanal and 4-terpenol were relatively low. The contribution rates of PC-1 and PC-2 were respectively 62.02% and 26.42%, which explained 88.44% of the variance information of the original aroma characteristic variables. Conclusion The principal components analysis of 9 kinds of aroma compounds can basically distinguish the Hongmeiren from diffreent producing areas.