The Optimal Condition of Dry-Heat Stabilization using Oven on Phenolic Content and Antioxidant Activity of Rice Bran: A Meta-Analysis

Martina Tri Puspita Sari (Study program of Nutrition and Feed Science, Faculty of Animal Science, IPB University, Kampus IPB Dramaga, Bogor, 16680)
Muhammad Ridla (Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Kampus IPB Dramaga, Bogor, 16680)
Heri Ahmad Sukaria (Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Kampus IPB Dramaga, Bogor, 16680)

Buletin Peternakan
Vol 47, No 4 (2023): BULETIN PETERNAKAN VOL. 47 (4) NOVEMBER 2023

Rice bran, a beneficial by-product of rice milling, is a rich source of nutrition, containing bioactive compounds such as phenolic compounds and exhibiting high antioxidant activity. Due to these properties, rice bran is a valuable ingredient for functional foods and animal feed. However, its short shelf life caused by rapid rancidity often hinders its use. Dry heating is an effective method to increase the longevity of rice bran. It can be stabilized by heating rice bran to the appropriate temperature, retaining its nutritional value and prolonging its shelf life. This meta-analysis aimed to determine the optimal temperature and time duration for dry-heat stabilization using an oven on Free Phenolic Content (FPC), Bound Phenolic Content (BPC), Total Phenolic Content (TPC), and Antioxidant Activity (AA) of rice bran. A total of 7 articles and 34 experiments were included after applying specified screening criteria. Results indicated that temperature and time duration of dry-heat stabilization had a significant effect