Comparative analysis of the metabolite compositions and antioxidant capacity of waxy and non-waxy black rice (<i>Oryza sativa</i> L.) bran via widely targeted metabolomics.

ABSTRACT: Black rice (Oryza sativa L.), valued for its nutritional benefits, was investigated to elucidate metabolite profiles and antioxidant capacity differences between waxy and non-waxy varieties. Eight black rice varieties sourced from diverse Chinese provinces were categorized based on amylose content. Non-waxy varieties demonstrated significantly superior antioxidant capacity, evidenced by elevated levels of DPPH and ABTS radical-scavenging activities, FRAP values, total polyphenol content, and α-glucosidase inhibitory activity. Utilizing UPLC-MS/MS, a total of 1130 secondary metabolites were identified, with flavonoids and phenolic acids constituting prominent classes. Multivariate analysis revealed distinct metabolite profile differences between the waxy and non-waxy groups, particul

SUBMITTER: Bian S 

PROVIDER: S-EPMC12756000 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature