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.

Microwave-Assisted Extraction of Soybean and Rice Bran Oil: Yield and Extraction Kinetics

Abstract: Microwave-assisted solvent extraction has the potential to replace traditional solvent extraction of oils and fats from a variety of feedstock. The purpose of this study was to optimize oil extraction parameters for a batch microwave system from two feedstocks: soybeans and rice bran. Solvent-feedstock mixtures were exposed to microwave radiation for different time-temperature combinations ranging from 60°C to 120°C for up to 20 min with simultaneous magnetic stirring. The solvent (ethanol) to feedstock ratio used was 3:1. After extraction, solid-liquid separation was performed in a vacuum filter, and ethanol was evaporated from the filtrate in a vacuum centrifuge. Results showed that the oil yield changed with temperature and achieved a maximum value in a relatively short time (order of minutes). Continuous exposure after this time did not increase the oil yield. The results compared well with traditional solvent extraction, especially when accounting for the extremely short extraction times (min vs. h). Maximum oil yields of 17.3% and 17.2% at 20 min and 120°C were achieved by microwave extraction as compared to 11.3% and 12.4% using control extraction for soybeans and rice bran, respectively. The major advantage of microwave-assisted solvent extraction is the reduced time of extraction required to obtain ~95% of total recoverable oil, with corresponding reduction in energy consumption costs per unit of oil extracted.

Rapeseed (canola) oil and other monounsaturated fatty acid-rich vegetable oils

Abstract: Rapeseed (canola) and other monounsaturated fatty acid (MUFA)-rich oils are viewed as good candidates to replace, at least partially, the fish oil normally included in aquaculture feeds (aquafeeds) In fact, their utilization as a dietary lipid source for aquatic animals has some advantages over other readily available terrestrial alternative oils and fats; however, this is not without difficulties MUFA are, indeed, easily digestible and a good source of available energy, and their deposition into fish flesh is considered to be less detrimental than other fatty acid classes, from a human nutritional viewpoint This chapter attempts to review the principal information available regarding the utilization of MUFA-rich vegetable oil (VO) in aquaculture feed Initially the chapter focuses on the rapeseed oil eRa) industry, agronomy, quality improvement, processing, and uses, and the main chemical and physical characteristics of rapeseed oil and other MUFA-rich va such as olive oil, peanut oil, and rice bran oil, amongst others Following this, the potential advantages and challenges of using these alternative oils in the aquaculture feed industry are presented and discussed

Organic base fertilizer special for grapes and production process thereof

Abstract: The invention discloses an organic base fertilizer special for grapes and a production process thereof. The organic base fertilizer special for grapes contains the following components: bean cakes, sheep manures, biogas slurry, Sophora alopecuroide branch and leaf slurry, rice bran oil residues, organic phosphorus, fulvic acid, amino acid magnesium, microelements and beneficial biological species solution. The production process of organic base fertilizer includes: 1 bean cakes, sheep manures and rice bran oil residues are crushed to be powder, green and tender branches and leaves of Sophora alopecuroide are struck into slurry, magnesium oxide and potassium hydroxide are added into fulvic acid saturated solution to synthesize amino acid magnesium and fulvic acid potassium, the seven microelements are prepared into saturated solution, and three beneficial biological bacteria such as enzyme bacteria, nitrogen-fixing bacteria and actinobacteria are cultured for 7-10 days to be high-concentration bacterium liquid; and 2 the components are evenly mixed together in proportion and ferment for 15-20 days to become the fertilizer. The organic base fertilizer special for grapes can promote fruits to expand fast, continuously improve sugar content, improve the grape yield by 8-10% and the sugar content by 3-4%, and enable the grapes to store for a long time and carry conveniently.