Topic
Rice bran oil
About: Rice bran oil is a research topic. Over the lifetime, 2102 publications have been published within this topic receiving 32504 citations.
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TL;DR: The availability of different types of plant seed oils, several methods for production of biodiesel from vegetable oils, and its properties are reviewed, and various fuel properties considered for review such as specific gravity, viscosity, calorific value, flash point, and fire point are presented.
Abstract: The modern scenario reveals that the world is facing energy crisis due to the dwindling sources of fossil fuels. Environment protection agencies are more concerned about the atmospheric pollution due to the burning of fossil fuels. Alternative fuel research is getting augmented because of the above reasons. Plant seed oils (vegetable oils) are cleaner, sustainable, and renewable. So, it can be the most suitable alternative fuel for compression ignition (CI) engines. This paper reviews the availability of different types of plant seed oils, several methods for production of biodiesel from vegetable oils, and its properties. The different types of oils considered in this review are cashew nut shell liquid (CNSL) oil, ginger oil, eucalyptus oil, rice bran oil, Calophyllum inophyllum, hazelnut oil, sesame oil, clove stem oil, sardine oil, honge oil, polanga oil, mahua oil, rubber seed oil, cotton seed oil, neem oil, jatropha oil, egunsi melon oil, shea butter, linseed oil, Mohr oil, sea lemon oil, pumpkin oil, tobacco seed oil, jojoba oil, and mustard oil. Several methods for production of biodiesel are transesterification, pre-treatment, pyrolysis, and water emulsion are discussed. The various fuel properties considered for review such as specific gravity, viscosity, calorific value, flash point, and fire point are presented. The review also portrays advantages, limitations, performance, and emission characteristics of engine using plant seed oil biodiesel are discussed. Finally, the modeling and optimization of engine for various biofuels with different input and output parameters using artificial neural network, response surface methodology, and Taguchi are included.
36 citations
TL;DR: The effect of proportion of soybean oil to rice bran oil on lipid peroxidation inhibition in fried dough with rice flour during storage was investigated in this paper, where rice flour was fried in 100% soybeans oil and mixtures with 25, 50, 50 and 75% of rice brans oil at 160°C for 1min, then stored in the dark at 60 −C for 10 days.
35 citations
TL;DR: In this article, the use of microwaves as a heating medium to drive the transesterification of vegetable oils into ethyl esters was investigated, and the results indicated that microwave heating can be used effectively to obtain high esters of fatty acids (biodiesel) yields at lower alcohol/oil ratios, effectively reducing the reaction time, even under continuous flow reactions due to a reduction in activation energy and an increase in Arrhenius preexponential factor.
Abstract: The use of microwaves as a heating medium to drive the transesterification of vegetable oils into ethyl esters was investigated. A continuous-flow microwave-assisted transesterification of soybean and rice bran oil was carried out in the presence of ethanol, using a molar ratio alcohol/oil of 5:1, and 0.6% w/w of sodium hydroxide as catalyst. The reactions were performed at atmospheric pressure, using a flow rate of 100 mL/min at temperatures of 50 and 73 °C for different reaction times (1, 5, and 10 min). At all tested parameters, the ethyl ester biodiesel produced conformed with ASTM specifications, with conversion rates between 96.7 and 99.3%, indicating a good quality biodiesel. The results indicated that microwave heating can be used effectively to obtain high ethyl esters of fatty acids (biodiesel) yields at lower alcohol/oil ratios, effectively reducing the reaction time, even under continuous-flow reactions due to a reduction in activation energy and an increase in Arrhenius pre-exponential factor...
35 citations
TL;DR: Six rice bran oil (RBO) blends were prepared in two ratios i.e., 80:20 and 70:30 and analysed for physicochemical properties, and antioxidants and fatty acid composition, and boiling with sautéing was a better cooking method in terms of maintaining fatty acid ratios.
35 citations
TL;DR: In this paper, a simple method for the isolation of γ-oryzanol from rice bran acid oil has been developed based on calcium ion induced precipitation of anionic micellar aggregates.
Abstract: A simple method for the isolation of γ-oryzanol from rice bran acid oil has been developed. The basis of the present isolation protocol is calcium ion induced precipitation of anionic micellar aggregates. Rice bran acid oil, a byproduct of rice bran oil processing industries, is subjected to conventional vacuum distillation to remove free fatty acids. Aqueous alkaline hydrolysis of the resultant residue, upon dilution with water, produces anionic micellar aggregates containing solubilized γ-oryzanol. Addition of calcium ions to this aqueous micellar aggregate induces instant coprecipitation of the calcium salts of the fatty acids and the aggregate-associated γ-oryzanol. The dried precipitate is extracted with ethyl acetate. Ethyl acetate is evaporated from the extract, and γ-oryzanol is purified from the residue by silica gel column chromatography. Experimental details for the isolation and characterization procedure are described. The present method will give ready access to the physiologically beneficial and value-added pharmaceutical product γ-oryzanol.
35 citations