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: In this paper, the antioxidant activity of two Iranian rice bran varieties, Fajr and Tarem, extracted by three different solvents (methanol, ethanol and ethyl acetate) was evaluated by measurement of total phenolic content, antioxidant activity in linoleic acid system, reducing power and scavenging capacity by DPPH radical.
91 citations
TL;DR: In this article, three factors namely fuel injection timing, quantity of exhaust gases recycled and fuel injection pressures were chosen with three levels and their combined effect were investigated. And the optimum combination level of factors was obtained by calculating multi response signal to noise ratio and simultaneously using Taguchi's parametric design and the obtained combination was confirmed through experiment.
89 citations
TL;DR: The results implied that the yield of rice bran oil was significantly influenced by ultrasound, and the oil extracted by ultrasound-assisted aqueous process had a lower content of free fatty acid and lower color imparting components than the hexane-extracted oil.
88 citations
TL;DR: In this paper, the authors presented an environmentally friendly, efficient, simple heterogeneous transesterification process combining palm oil, soybean oil, rice bran oil, and waste cooking oil with methanol to make a biodiesel and glycerol byproduct using calcined waste coral fragments in solid form as a catalyst.
87 citations
TL;DR: In this paper, a batch supercritical fluid extraction (SFE) of rice bran with CO2 was performed at different operational conditions (from 100 to 400 Â bar, 50 and 60 Â c) and the extract yields were in the range of 20%.
Abstract: Rice bran is a by-product of rice processing, obtained through the polishing of the rice grain. It presents a considerable high oil content (between 20 and 25%) and it is considered an excellent source of nutritionally beneficial compounds, such as tocotrienols, tocopherols and sterols. Batch supercritical fluid extraction (SFE) of rice bran with CO2 was performed at different operational conditions (from 100 to 400 bar, 50 and 60 °C) and the extract yields were in the range of 20%. The next step corresponded to the deacidification of the obtained oil in a countercurrent (CC) column, where the experiments were carried out at 250 bar and 67 °C. The results have shown that the free fatty acids (FFA) removal from the crude rice bran oil (RBO) was successfully achieved. Deacidified RBO with <1% FFA could be obtained by applying the described process. To conclude this work, an industrial process has been proposed which couples batch SFE of rice bran with CC-SFE of the extracted oil obtained, in order to isolate the undesired FFA fraction from the raffinated oil, composed mainly by triglycerides (TG).
87 citations