Anthocyanins in black rice, soybean and purple corn increase fecal butyric acid and prevent liver inflammation in high fat diet-induced obese mice

Abstract

Epidemiological evidence indicates that anthocyanin consumption reduces the incidence of chronic and degenerative diseases. Therefore, the present study aimed to determine whether black rice anthocyanin (BRA), black soybean anthocyanin (BSA), and purple corn anthocyanin (PCA) could mitigate oxidative stress and inflammation associated obesity in C57BL/6 mice fed with a high-fat diet. BRA, BSA, or PCA was administered at doses of 200 mg kg⁻¹ throughout the 12-week experiment and reduced the bodyweight by 9.6%, 13.3%, or 16.6%, respectively. Furthermore, BRA, BSA or PCA administration could effectively increase fecal butyric acid levels, elevate hepatic SOD and GPx activities, decrease lipid peroxidation, and downregulate the gene expression levels of TNFα, IL-6, iNOS, and NF-κB. Hence, BRA, BSA, or PCA might ameliorate diet-induced obesity by alleviating both oxidative stress and inflammation.