title: Metabolic profiling of glucosinolates, anthocyanins, carotenoids, and other secondary metabolites in kohlrabi (Brassica oleracea var. gongylodes).
abstract: We profiled and quantified glucosinolates, anthocyanins, carotenoids, and other secondary metabolites in the skin and flesh of pale green and purple kohlrabis. Analysis of these distinct kohlrabis revealed the presence of 8 glucosinolates, 12 anthocyanins, 2 carotenoids, and 7 phenylpropanoids. Glucosinolate contents varied among the different parts and types of kohlrabi. Glucoerucin contents were 4-fold higher in the flesh of purple kohlrabi than those in the skin. Among the 12 anthocyanins, cyanidin 3-(feruloyl)(sinapoyl) diglucoside-5-glucoside levels were the highest. Carotenoid levels were much higher in the skins than the flesh of both types of kohlrabi. The levels of most phenylpropanoids were higher in purple kohlrabi than in pale green ones. trans-Cinnamic acid content was 12.7-fold higher in the flesh of purple kohlrabi than that in the pale green ones. Thus, the amounts of glucosinolates, anthocyanins, carotenoids, and phenylpropanoids varied widely, and the variations in these compounds between the two types of kohlrabi were significant.
authors: Department of Crop Science, Chungnam National University, 99 Daehak-Ro, Daejeon 305-764, Republic of Korea.
authors: Woo Tae
authors: WT
authors: Park
authors: Jae Kwang
authors: JK
authors: Kim
authors: Suhyoung
authors: S
authors: Park
authors: Sang-Won
authors: SW
authors: Lee
authors: Xiaohua
authors: X
authors: Li
authors: Yeon Bok
authors: YB
authors: Kim
authors: Md Romij
authors: MR
authors: Uddin
authors: Nam Il
authors: NI
authors: Park
authors: Sun-Ju
authors: SJ
authors: Kim
authors: Sang Un
authors: SU
authors: Park
mesh_terms: D000872:Anthocyanins / Q000032:analysis* / Q000378:metabolism; D001937:Brassica / Q000737:chemistry*; D002338:Carotenoids / Q000032:analysis* / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D005961:Glucosinolates / Q000032:analysis* / Q000378:metabolism; D013058:Mass Spectrometry; D055442:Metabolome; D010936:Plant Extracts / Q000032:analysis / Q000737:chemistry
chemical_list: D000872:Anthocyanins; D005961:Glucosinolates; D010936:Plant Extracts; D002338:Carotenoids