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.
Papers published on a yearly basis
Papers
More filters
TL;DR: Composition of free fatty acids and smoke point of RBO and RBOSL were not significantly different, while melting end point temperatures and melting enthalpies were significantly different.
Abstract: Rice bran oil (RBO) was enzymatically modified in a continuous packed bed bioreactor to incorporate caprylic acid with Lipozyme RM IM as biocatalyst. The reaction product was purified by short-path distillation. Rice bran oil structured lipid (RBOSL) contained 32.1 mol % caprylic acid. Positional analysis revealed 0.7 mol % caprylic acid at the sn-2 position and 47.8 mol % caprylic acid at the sn-1,3 positions. Composition of free fatty acids and smoke point of RBO and RBOSL were not significantly different. Saponification value, iodine value, and viscosity of RBO were significantly different from those of RBOSL. The color of RBOSL was darker, more yellow and less green than RBO. Volatile compounds in RBO and RBOSL were determined by GC-MS. Melting onset temperatures of RBO and RBOSL were not significantly different, while melting end point temperatures and melting enthalpies were significantly different. This characterization study results will help determine potential food applications of RBOSL.
27 citations
TL;DR: In this article, a 2-level fractional factorial design (FFD) was applied for the selection of important process parameters influencing the lactic acid extraction significantly and then Box-Behnken design (BBD) was used to optimize the process conditions.
Abstract: Recently new development in the existing emulsion liquid membrane (ELM) technique is the use of green solvents and ionic liquids to form a stable green emulsion ionic liquid membrane (GEILM) which will help in curbing the environmental problems caused by petroleum-based solvents. In the present investigation, lactic acid (LA) extraction has been carried out by using GEILM. The w/o emulsion was prepared by using diluents solution (rice bran oil (70%, v/v) as a natural green solvent and hexane (30%, v/v) as an organic solvent), span 80 (2.66%, v/v of diluents solution) as a surfactant, aliquat336 (0.2%, v/v of diluents solution) as an ionic liquid, and sodium hydroxide (NaOH) as an internal phase reagent. The obtained GEILM was stable for 90 min which is ideal time for ELM operations. Therefore, rice bran oil (RBO) as a green solvent has shown a great potential for its applications in the various existing ELM processes. Initially, a 2- level fractional factorial design (FFD) was applied for the selection of important process parameters influencing the LA extraction significantly and then Box-Behnken design (BBD) was used to optimize the process conditions. 95 ± 3.5% LA extraction efficiency has been obtained under the optimized process conditions.
27 citations
TL;DR: In this article, the deodoriser distillate (DD) was used as the source of phytochemicals for further concentration by molecular distillation, resulting in the unevaporated fraction (UMD) having the acid values of 5.6-9.3-mg KOH g−1.
Abstract: Summary
Commercially available refined rice bran oil (RBO) contained high contents of phytosterol and γ-oryzanol, that is, 858–1034 and 248–887 mg per 100 g oil, respectively. Although the crude rice bran oil (CRBO) had high contents of both phytochemicals (1362–1376 mg phytosterol per 100 g and 1599–1666 mg γ-oryzanol per 100 g), physical refining process resulted in their reduction to 820–895 mg phytosterol per 100 g and 933–960 mg γ-oryzanol per 100 g in RBO (P < 0.05). Both phytochemicals evaporated and accumulated in the deodoriser distillate (DD) to some extent during the deodorising step. Further distillation of DD using molecular distillation (MD) evaporated the free fatty acids (FFAs), resulting in the unevaporated fraction (UMD) having the acid values of 5.6–9.3 mg KOH g−1. The UMD also contained 1585–3391 mg phytosterol per 100 g and 781–848 mg γ-oryzanol per 100 g. Results suggest potential use of DD as the source of phytochemicals for further concentration by MD.
26 citations
TL;DR: In this article, a four-stroke single cylinder, water-cooled compression ignition (CI) engine coupled with an eddy current dynamometer was used to investigate a rice bran oil biodiesel blend.
Abstract: The present study aims to investigate a four-stroke single cylinder, water-cooled compression ignition (CI) engine coupled with an eddy current dynamometer. The rice bran oil biodiesel blends of B1...
26 citations
Patent•
31 Jan 1996
TL;DR: A lipid composition for preparation of cosmetic compositions is provided by a mixture of, by weight based upon a weight of the lipid composition, from 40% to 60% apricot kernel oil, from 10% to 20% of an oil containing palmitoleic acid, from 15% to 25% of olive oil and from 20% to 30% of rice bran oil or sesame oil or combinations thereof as mentioned in this paper.
Abstract: A lipid composition for preparation of cosmetic compositions is provided by a mixture of, by weight based upon a weight of the lipid composition, from 40% to 60% apricot kernel oil, from 10% to 20% of an oil containing palmitoleic acid, from 15% to 25% of olive oil and from 20% to 30% of rice bran oil or sesame oil or combinations thereof. Cosmetic compositions containing the lipid mixture may be anhydrous or contain water. The preparation of the lipid composition may include treating the mixture of oils with steam at a temperature of about 180° C. for about 3 hours at a rate of about 1% per hour and under a vacuum of about 1 mbar to 2 mbar for deodorizing the oils.
26 citations