Characterization of carotenoids and flavonoids in Yangxian pigmented rice varieties through LC‒MS/MS-based targeted metabolomics and multivariate statistics.

ABSTRACT: Pigmented rice is widely popular because of its abundant phytochemicals and various health benefits. This study investigated the variations in the carotenoids and flavonoids of Yangxian-pigmented rice (black, green, purple, yellow, and red) through LC‒MS/MS targeted metabolomics. A total of 20 carotenoids were identified, with 18 xanthophylls (90 %) and 2 carotenes (10 %). Principal component analysis (PCA) demonstrated that PC1 and PC2 accounted for 55.4 % and 26.4 %, respectively, of the variance among pigmented rice samples. PLS-DA revealed 5 significantly different carotenoids (VIP >1 and P value < 0.05) across these rice varieties. Additionally, 378 metabolites, consisting of 361 flavonoids (95.5 %) and 17 tannic acids (4.5 %), were detected. PCA revealed that PC1 and PC2 contributed

SUBMITTER: He J 

PROVIDER: S-EPMC12489770 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature