本文已被:浏览 912次 下载 470次
投稿时间:2021-07-12
投稿时间:2021-07-12
中文摘要: 以油梨品种哈斯和桂研5号叶茶为研究对象,首先采用固相微萃取(solid-phase micro-extraction,SPME)和气相色谱-质谱(gas chromatography-mass spectrometrometry,GC-MS)技术对其进行香气成分提取与定量分析,相对气味活度值(relative odor activity value,ROAV)分析香气成分中的关键性香气成分和修饰性成分,最后对两种油梨叶茶进行感官评价。结果表明:哈斯叶茶中共有44种香气成分,主要香气成分为仲辛醇(40.39%)、石竹烯(17.31%)、大根香叶烯D(6.28%)、α-法呢烯(3.40%)和α-律草烯(2.52%),哈斯叶茶香气成分中醇类物质总相对含量最多,为41.21%;石竹烯、β-蒎烯、六甲基环三硅氧烷、松油醇、二甲基硅烷二醇、乙酸乙酯和罗勒烯异构体为关键性香气成分,反式-2-壬醛、十甲基环五硅氧烷、苯甲醛、苯乙醛、α-蒎烯、2-甲基丁醛和仲辛酮为修饰性香气成分,哈斯感官评分为85.7;桂研5号叶茶中共有41种香气成分,主要香气成分为仲辛醇(15.88%)、大根香叶烯D(12.83%)、石竹烯(11.94%)、α-法呢烯(5.14%)、α-蒎烯(3.83%)、桧烯(3.68%)、δ-卡丁烯(3.24%)和 α-律草烯(3.03%),桂研 5号叶茶香气成分中萜烯类物质相对含量最多,为49.86%,石竹烯、4-萜烯醇、罗勒烯异构体、六甲基环三硅氧烷和乙酸乙酯为关键性香气成分,十甲基环五硅氧烷、二甲基硅烷二醇、α-蒎烯、苯甲醛、β-月桂烯和壬醛为修饰性香气成分,桂研5号感官评分为83.1。
Abstract:The avocado (Persea americana Mill.)varieties Hass and Gui Yan No.5 leaf tea were used as the research objects,and solid-phase micro-extraction (SPME)was first performed.Gas chromatography-mass spectrometry (GC-MS)technology was used to extract and quantitatively analyze the aroma components.(ROAV)The key aroma components and modifiers in the aroma components were analyzed using relative odor activity values(ROAV).Lastly,sensory evaluation of the two types of avocado leaf tea was conducted.The results showed that there were 44 aroma components in Hass leaf tea,the main of which were 2-octanol(40.39%),caryophyllene(17.31%),germacrene D(6.28%),E,E-α-farnesene(3.40%)and α-humulene(2.52%).The total relative content of alcohols in the aroma components of Hass leaf tea was the highest at 41.21%.Caryophyllene,β-pinene,cyclotrisiloxane,hexamethyl-,terpineol,silanediol,dimethyl-,acetic acid,ethyl ester,and 1,3,6-octatriene,3,7-dimethyl-,(Z)-were the key aroma components,while 2-nonenal,(E)-,cyclopentasiloxane,decamethyl-,benzaldehyde,benzeneacetaldehyde,α-pinene,butanal,2-methyl-,and 2-octanone were the modified aroma components.The sensory evaluation score of Hass was 85.7.Meanwhile,41 aroma components were identified in Gui Yan No.5 leaf tea,the main being 2-octanol(15.88%),germacrene D (12.83%),caryophyllene(11.94%),E,E-α-farnesene(5.14%),α-pinene(3.83%),sabinene(3.68%),cadinene(3.24%)and α-humulene(3.03%).The relative content of terpenoids in the aroma components of Gui Yan No.5 leaf tea was the highest at 49.86%.Caryophyllene,3-cyclohexen-1-ol,4-methyl-1-(1-methylethyl)-,1,3,6-octatriene,3,7-dimethyl-,(Z)-,cyclotrisiloxane,hexamethyl-,and acetic acid,ethyl ester were the key aroma components,while cyclopentasiloxane,decamethyl-,silanediol,dimethyl-,α-pinene,benzaldehyde,β-myrcene,and nonanal were the modified aroma components.The sensory evaluation score of Gui Yan No.5 was 83.1.
keywords: avocado leaf tea aroma components solid-phase micro-extraction(SPME) gas chromatography-mass spectrometry(GC-MS) relative odor activity value(ROAV)
文章编号:202205024 中图分类号: 文献标志码:
基金项目:广西农业科学院科技发展基金项目(桂农科2020YM148);山黄皮、乌榄等特色果树研究团队(桂农科2021YT159);崇左市科技计划项目(崇科攻2019045);国家现代农业产业技术体系广西创新团队优稀水果崇左综合试验站(nycytxgxcxtd-17-16);漳州市自然科学基金项目(zz2020j12);特色水果产业科技先锋队(桂农科JZ202008)
引用文本: