title: Aroma characterization based on aromatic series analysis in table grapes.
abstract: Aroma is an important part of quality in table grape, but the key aroma compounds and the aroma series of table grapes remains unknown. In this paper, we identified 67 aroma compounds in 20 table grape cultivars; 20 in pulp and 23 in skin were active compounds. C6 compounds were the basic background volatiles, but the aroma contents of pulp juice and skin depended mainly on the levels of esters and terpenes, respectively. Most obviously, 'Kyoho' grapevine series showed high contents of esters in pulp, while Muscat/floral cultivars showed abundant monoterpenes in skin. For the aroma series, table grapes were characterized mainly by herbaceous, floral, balsamic, sweet and fruity series. The simple and visualizable aroma profiles were established using aroma fingerprints based on the aromatic series. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) showed that the aroma profiles of pulp juice, skin and whole berries could be classified into 5, 3, and 5 groups, respectively. Combined with sensory evaluation, we could conclude that fatty and balsamic series were the preferred aromatic series, and the contents of their contributors (β-ionone and octanal) may be useful as indicators for the improvement of breeding and cultivation measures for table grapes.
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Yusen
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Shuyan
authors.initials: S
authors.lastname: Duan
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Liping
authors.initials: L
authors.lastname: Zhao
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Gao
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Luo
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Shiren
authors.initials: S
authors.lastname: Song
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Wenping
authors.initials: W
authors.lastname: Xu
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Caixi
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Ma
authors.affiliation: Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Shiping
authors.initials: S
authors.lastname: Wang
mesh_terms: D002681:China; D016000:Cluster Analysis; D005504:Food Analysis; D063427:Food Quality; D005638:Fruit / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D009812:Odorants / Q000032:analysis*; D000069600:Plant Breeding; D025341:Principal Component Analysis; D052617:Solid Phase Microextraction; D027843:Vitis / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D055549:Volatile Organic Compounds