This study focuses on analyzing aqueous solutions of aroma-active compounds in Xinhui Chenpi distilled after being heated with headspace solid-phase microextraction and gas chromatography-mass spectrometry(HS-SPME-GC/...This study focuses on analyzing aqueous solutions of aroma-active compounds in Xinhui Chenpi distilled after being heated with headspace solid-phase microextraction and gas chromatography-mass spectrometry(HS-SPME-GC/MS).Feasibility of this method was also tested by comparison with crushed samples.The study also analyzed the aqueous solutions of the aroma-active compounds employing gas chromatography-olfactometry(GC-O)defense,aroma extraction dilution analysis(AEDA)and odor activity value(OAV)as well as their emission patterns.According to the study,there are 24 major aroma-active detected in the aqueous solution.Linalool,d-limonene,2-methoxy-4-vinylphenol,andα-terpineol with sweet,spicy,and woody aroma contributed the most to the aroma-active compounds and were considered to be the essential aroma substances of Chenpi.When heated,the aroma of aromatic-active compounds rich in Chenpi volatilized rapidly and the release dropped dramatically in a short time.The substantial aroma-active compounds can be collected from the first ten released segments.展开更多
基金Youth Top Talents Project in Tianjin Special Support Program,the Science and technology Project of Tianjin(Grant No.21ZYCGSN00410)the Science and technology Project of Tianjin(Grant No.21YDTPJC00910)+4 种基金the National Natural Science Foundation of China[32102004]the Project funded by China Postdoctoral Science Foundation[2021M701169,2022T150206]the China Agriculture Research System of MOF and MARAthe Construction of World Big-leaf Tea Technology Innovation Center and Industrialization of Achievements[202102AE090038]the Scientific and Technological Talents and Platform Plan(Academician Expert Workstation)[202104AC100001-B01].
文摘This study focuses on analyzing aqueous solutions of aroma-active compounds in Xinhui Chenpi distilled after being heated with headspace solid-phase microextraction and gas chromatography-mass spectrometry(HS-SPME-GC/MS).Feasibility of this method was also tested by comparison with crushed samples.The study also analyzed the aqueous solutions of the aroma-active compounds employing gas chromatography-olfactometry(GC-O)defense,aroma extraction dilution analysis(AEDA)and odor activity value(OAV)as well as their emission patterns.According to the study,there are 24 major aroma-active detected in the aqueous solution.Linalool,d-limonene,2-methoxy-4-vinylphenol,andα-terpineol with sweet,spicy,and woody aroma contributed the most to the aroma-active compounds and were considered to be the essential aroma substances of Chenpi.When heated,the aroma of aromatic-active compounds rich in Chenpi volatilized rapidly and the release dropped dramatically in a short time.The substantial aroma-active compounds can be collected from the first ten released segments.
