Review on Recent Trends in Rice Bran Oil Processing

Abstract

Rice bran oil (RBO) is popular in several countries such as Japan, India, Korea, China and Indonesia as a cooking oil. It has been shown that RBO is an excellent cooking and salad oil due to its high smoke point and delicate flavor. The nutritional qualities and health effects of rice bran oil are also established. RBO is rich in unsaponifiable fraction (unsap), which contains the micronutrients like vitamin E complexes, gamma oryzanol, phytosterols, polyphenols and squalene. However, the high FFA and acetone-insoluble content of RBO made it difficult for processing. Therefore, in recent years, research interest has been growing in RBO processing to obtain good quality oil with low refining loss. This review article deals with detailed reports on RBO processing including membrane-based techniques from the production and quality point of view.

Properties and Storage Stability of O/W Emulsion Replaced with Medium-Chain Fatty Acid Oil

“…However, for the fi rst seven days of storage, the TBARS content of the bulk RBO mayonnaise was lower than that of the CNO:RBO 30:70 mayonnaise (Figure 3). Rice bran oil contains oryzanol, tocopherols and tocotrienols [Ghosh, 2007;Gunstone, 2011], which helped to reduce the initial oxidation of the mayonnaise. The TBARS content of the bulk RBO mayonnaise increased up to day 21 and then decreased after that.…”

Supercritical CO₂ Extraction of Rice Bran Oil –the Technology, Manufacture, and Applications

“…Nonetheless, oil refinements are unavoidable processes required for RBO manufacture. These processes include settling or filtration of bran fines, degumming, dewaxing, deacidification, bleaching and deodorization 17 . For instance, the high content of free fatty acid in crude RBO requires neutralization with alkali to eliminate the free fatty acid.…”

Bioelectricity Production and Comparative Evaluation of Electrode Materials in Microbial Fuel Cells Using Indigenous Anode-Reducing Bacterial Community from Wastewater of Rice-Based Industries

“…This combination of conditions affected the overall MFC performance operated with different electrode and wastewater. Wastewater from rice bran oil refinery may have some complex components including poly-unsaturated Fats, mono-saturated fats, saturated fats, rich amount of essential fatty acids, Linoleic fatty acid, Linolenic acids and trace amount of other nutrients that are recommended for edible oils (Ghosh, 2007); whereas wastewater from rice mill is having more amount of starch and lesser of other complex nutrients such as Ash Percentage, Crude Fat, Crude Protein, Crude Fiber and Vitamin B-6 because it is the result of the basic steps of parboiling namely soaking and steaming procedure of paddy in order to obtain commercialized rice. Therefore, it is simple composition of wastewater (Akhter et al, 2014).…”