A comparative metabolomics study of flavonoids in sweet potato with different flesh colors (Ipomoea batatas (L.) Lam)

作者：Wang, Aimin^*; Li, Rensai; Ren, Lei; Gao, Xiali; Zhang, Yungang; Ma, Zhimin; Ma, Daifu^*; Luo, Yonghai^*

来源：Food Chemistry, 2018, 260: 124-134.

DOI：10.1016/j.foodchem.2018.03.125

• Sweet potato
• Metabolomics
• Flavonoids
• Phenolic acids

To study the diversity and cultivar-specific of phytochemicals in sweet potato, Liquid Chromatography-Electrospray Ionization-Mass Spectrometry was used to analyze the metabolic profiles of five sweet potato cultivars exhibiting different flesh colors: purple, yellow/orange, and white. A total of 213 metabolites, including 29 flavonoids and 27 phenolic acids, were characterized. The flavonoid profiles of the five different cultivars were distinguished using PCA, the results suggested the flesh color accounted for the observed metabolic differences. In addition to anthocyanins, quinic acids and ferulic acids were the prominent phenolic acids, O-hexoside of quercetin, chrysoeriol were the prominent flavonoids in sweet potato tubers, and they were all higher in the OFSP and PFSP than WFSP. The main differential metabolic pathways between the OFSP, PFSP and the WFSP included those relating to phenylpropanoid and flavonoid biosynthesis. This study provides new in-sights into the differences in metabolite profiles among sweet potatoes with different flesh colors.

• 出版日期2018-9-15
• 单位江苏徐州甘薯研究中心; 河北省农林科学院粮油作物研究所; 福建农林大学