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Ge, Ya-Hui; Li, Xue; Huang, Mingzheng; Huang, Zhengxu; Wu, Manman; Sun, Baoqing; Wang, Lishuang; Wu, Jian-Lin; Li, Na
Food research international, July 2023, 2023-Jul, 2023-07-00, 20230701, Letnik: 169Journal Article
Display omitted •Aroma correlation assisted volatilome coupled network analysis strategy proposed.•Aroma-active and aroma-contributing volatiles singled out for aroma analysis.•Two major clustered volatile groups accounting for holistic aromas discovered.•Accumulation of C6 and C8 family volatiles elucidated with linoleic and linolenic acid derived pathways. To investigate the main aroma-active volatiles out from comprehensive chemical profile, we proposed an aroma correlation assisted volatilome coupled network analysis strategy and applied it to the study of Rosa roxburghii. Based on 475 detected volatiles with GC × GC-TOF/MS analysis, the volatilome was screened with both positive aroma activities and high contents to discover some aliphatic acids, alcohols, aldehydes and esters, terpenoids as well as some alkenes and ketones. Especially, a series of homologous C6- and C8- acids, alcohols, aldehydes, esters as well as some terpenoids like limonene take the predominant contributions to the aromas. Moreover, two aroma-active and aroma-contributing volatile groups including acid–aldehyde-alcohol-ester and terpenoid groups were clustered to integrally be responsible for the major aromas of R. roxburghii with network analysis. Additionally, the accumulation of C6- and C8-family homologous aliphatic volatiles was also elucidated with linoleic and linolenic acid derived pathways. This strategy is practical to investigate the main aroma-active volatiles based on volatilome.
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