Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5136846 | Journal of Food Composition and Analysis | 2017 | 6 Pages |
Abstract
The chemical profiles of glucosinolates in cruciferous vegetables-based dietary supplements (CVDS) have been established with an ultra-high performance liquid chromatography high-resolution mass spectrometry (UHPLC-HRMS) method. In total, 29 glucosinolates, including two new acylated glucosinolates, were putatively identified. The structures of the two new acylated glucosinolates were deduced as 6â²-O-sinapoyl-4-(methylsulphinyl)-butyl glucosinolate and 6â²-O-sinapoyl-4-(methylthio)-butyl glucosinolate, respectively. The possible fragmentation pathways of the two new glucosinolates were proposed based on their multi-stage mass spectrometry (ESI-MSn) spectra. Furthermore, the glucosinolates in CVDS were desulfated and quantified as desulfo-glucosinolates by diode array detector. The total content of glucosinolates in CVDS varied greatly from 6.15 to 104.17 μmol/g. The chemical profiles of these CVDS also showed substantial diversity. Our study presented an effective strategy that can be used for quality control of commercial dietary supplements that contain glucosinolates.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Haiming Shi, Yang Zhao, Jianghao Sun, Liangli (Lucy) Yu, Pei Chen,