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How is rice bran oil extracted?
Rice bran oil (RBO) is obtained through extraction of rice bran which is a by-product of the rice milling industries. There are several techniques used for the extraction of the RBO, but solvent extraction using hexane is the most popular used conventional method for commercial extraction.
Can -oryzanol be extracted from rice bran oil?
All the here reported green extraction techniques allow a high-quality rice bran oil and high concentrations of γ-oryzanol to be obtained and show comparable yields with the extraction methods that employ hexane.
Is rice bran oil a solventless extraction method?
This review has highlighted that despite the efficiency in the extraction of rice bran oil, some solvents are toxic. The future direction should therefore focus on green extraction methods in order to address the need for environmental sustainability. The solventless methods or the methods that use water as a solvent are therefore encouraged.
What is enzyme assisted extraction of rice bran oil?
Table 3. Enzyme assisted extraction of rice bran oil and their corresponding yields. The advantages of enzyme assisted extraction technique compared to conventional solvent extraction methods includes reduced time of extraction, minimized solvent usage and increased yield and quality of product.