Research Progress in Aqueous Enzymatic Extraction and Demulsification Technologies of Rice Bran Oil

Abstract:

Rice bran, an important byproduct of rice processing, has an annual output of about 15 million tons. With rich high-quality lipids, rice bran is an ideal raw material for rice bran oil production. The oil is rich in unsaturated fatty acids, oryzanol, vitamin E, and sterols, boasting significant nutritional and health benefits. As a green extraction technology, the aqueous enzymatic method has gained attention for its advantages in high oil quality, environmental friendliness, and minimal protein damage. This review summarizes the principles of aqueous enzymatic extraction, industrialization bottlenecks, and key influencing factors. It focuses on demulsification technologies for the emulsion generated during extraction and prospects future directions aligned with industry trends, aiming to promote high-value utilization of rice bran and industrial application of the aqueous enzymatic extraction method.