title: CIELAB coordinates in response to berry skin anthocyanins and their composition in Vitis.
abstract: Berry skin color OIV index, anthocyanin composition, and content of 78 grape cultivars were surveyed using a CIELAB system and high-performance liquid chromatography (HPLC)-mass spectrometry (MS) coupled with photodiode array detection. There were high correlations between L*, b*, and color, while a* was not a representative parameter. L* and b* values declined as berry skin color OIV became darker, and a* increased as berry skin color OIV became darker in pink and red grape cultivars only. The composition and content of anthocyanins varied widely among the cultivars. Total anthocyanins and types of anthocyanins were significantly correlated with color OIV parameters. Through multiple linear regression analysis, cyanidin derivatives had a positive effect on values of L* and b*. Delphinidin derivatives had positive effects on the value of a*. The CIELAB system gave good results for differentiation of grape berry skin color OIV.
authors.affiliation: Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, PR China.
authors.forename: Zhenchang
authors.initials: Z
authors.lastname: Liang
authors.forename: Min
authors.initials: M
authors.lastname: Sang
authors.forename: Peige
authors.initials: P
authors.lastname: Fan
authors.forename: Benhong
authors.initials: B
authors.lastname: Wu
authors.forename: Lijun
authors.initials: L
authors.lastname: Wang
authors.forename: Shuhua
authors.initials: S
authors.lastname: Yang
authors.forename: Shaohua
authors.initials: S
authors.lastname: Li
mesh_terms: D000215:Acylation; D000872:Anthocyanins / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D005638:Fruit / Q000737:chemistry*; D006027:Glycosides / Q000032:analysis / Q000737:chemistry; D016014:Linear Models; D010858:Pigmentation; D019441:Plant Epidermis / Q000737:chemistry*; D013045:Species Specificity; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry; D027843:Vitis / Q000737:chemistry* / Q000145:classification
chemical_list: D000872:Anthocyanins; D006027:Glycosides; C017154:cyanidin; C017185:delphinidin