[PDF][PDF] Extraction and utilization of rice bran oil: A review

U Garba, R Singanusong, S Jiamyangyuen… - safety, 2017 - researchgate.net
safety, 2017researchgate.net
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. The use of hexane in the conventional methods has some drawbacks
due to its flammability, toxicity and high temperature involved in the process resulting in
some undesirable components in the oil as a result of oxidative deterioration, developments …
Abstract
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. The use of hexane in the conventional methods has some drawbacks due to its flammability, toxicity and high temperature involved in the process resulting in some undesirable components in the oil as a result of oxidative deterioration, developments of rancid and off-flavor. Efforts were made by many researchers to explore different other nonconventional techniques for the oil extractions and utilization. Some of these methods such as supercritical carbon dioxide extraction, subcritical water extraction, enzyme-assisted, ultrasonic-assisted and microwaveassisted processes can be use produce an oil that is free from toxic residues, having high concentration of health components and a yield comparable to the conventional techniques. RBO has gained a wide popularity due to its considerable importance in the last few years for its health benefits. It has gained many applications in food, pharmaceutical, cosmetics and chemical industries because of its unique properties and medicinal value. However, the lack of widespread commercial uses of the RBO is due to the economic factor particularly the high cost of the oil as compared to other vegetable oils. This review intended to give an overview of some widely used extraction methods for the RBO as well as its existing applications in different industries.
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