Immobilization of cellulase on magnetic nanoparticles for rice bran oil extraction in a magnetic fluidized bed

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Dianyu Yu ◽  
Xiaoyu Ma ◽  
Yunyan Huang ◽  
Lianzhou Jiang ◽  
Liqi Wang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Grain Size ◽  
Fluidized Bed ◽  
Rice Bran ◽  
Theoretical Basis ◽  
Rice Bran Oil ◽  
Oil Extraction ◽  
Hydrolysis Time ◽  
Average Grain Size ◽  
Immobilized Cellulase

Abstract This paper presents a method for extracting rice bran oil using magnetic immobilized cellulase (MIC) in a magnetic fluidized bed (MFB). Cellulase was immobilized on Fe3O4/SiO x -g-P (glycydylmethacrylate) with an average grain size of 120 nm. The rice bran was hydrolyzed using MIC combined with magnetic immobilized alkaline protease to extract rice bran oil. Under intermittent conditions, the MIC concentration was 1.6 mg/g, the liquid to material ratio was 4:1, the enzymatic hydrolysis time was 150 min, and the oil yield was as high as 85.6 ± 1.20% at 55 °C. The fluid in the MFB had a magnetic field strength of 0.022 T, a flow velocity of 0.005 m/s, and an oil extraction rate of 90.3%. This provides a theoretical basis for the extraction of rice bran oil using the subsequent MFB hydroenzyme method.

Magnetic Annealing on GNO Electrical Steel Fe-3.25% Si

2013 ◽  
Vol 758 ◽  
pp. 113-117 ◽  
Author(s):  
Gilberto Alexandre Castello-Branco ◽  
Jennifer Nadine Muller ◽  
Cristiane Maria Basto Bacaltchuk
Keyword(s):  
Magnetic Field ◽  
Grain Size ◽  
Electrical Steel ◽  
Annealing Process ◽  
Magnetic Annealing ◽  
Average Grain Size ◽  
Orientation Density ◽  
Cold Rolled ◽  
Small Grains ◽  
Electrical Motors

Grain non-oriented electrical steel has its main application in electrical motors and its microstructure significantly influences their efficiency. The objective of this work was to investigate whether or not magnetic field applied during annealing process affects grain growth and the development of important texture components leading to an improvement of the magnetic properties. GNO Fe-3.25%Si 75% cold rolled specimens were annealed inside magnetic field with strength of 17 T at the temperature of 800°C for 3, 10 and 30 minutes. Results of average grain size after magnetic annealing showed a microstructure formed by small grains and a few very large grains. Magnetic field did not increase orientation density of {100} oriented grains and Goss grains but was able to increase density of θ fiber and decrease the density of γ fiber.

Experimental data and modeling of rice bran oil extraction kinetics using ethanol as solvent

2017 ◽  
Vol 52 (12) ◽  
pp. 1921-1928 ◽  
Author(s):  
Juliane A. A. M. Kamimura ◽  
Keila K. Aracava ◽  
Christianne E. C. Rodrigues
Keyword(s):  
Experimental Data ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Oil Extraction ◽  
Extraction Kinetics

Rice bran stabilization and rice bran oil extraction using ohmic heating

2004 ◽  
Vol 92 (2) ◽  
pp. 157-161 ◽  
Author(s):  
N.Rao Lakkakula ◽  
Marybeth Lima ◽  
Terry Walker
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Ohmic Heating ◽  
Oil Extraction

scholarly journals Parametric optimization of rice bran oil extraction using response surface methodology

2016 ◽  
Vol 18 (3) ◽  
pp. 103-109 ◽  
Author(s):  
Syed W. Ahmad ◽  
Farhan Javed ◽  
Sajjad Ahmad ◽  
Muhammad Akram ◽  
Abdur Rehman
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Rice Bran ◽  
Contact Time ◽  
Parametric Optimization ◽  
Rice Bran Oil ◽  
Optimization Technique ◽  
Oil Extraction ◽  
Experimental Results ◽  
Stirring Rate

Abstract Use of bran oil in various edible and nonedible industries is very common. In this research work, efficient and optimized methodology for the recovery of rice bran oil has been investigated. The present statistical study includes parametric optimization, based on experimental results of rice bran oil extraction. In this study, three solvents, acetone, ethanol and solvent mixture (SM) [acetone: ethanol (1:1 v/v)] were employed in extraction investigations. Response surface methodology (RSM), an optimization technique, was exploited for this purpose. A five level central composite design (CCD) consisting four operating parameter, like temperature, stirring rate, solvent-bran ratio and contact time were examined to optimize rice bran oil extraction. Experimental results showed that oil recovery can be enhanced from 71% to 82% when temperature, solvent-bran ratio, stirring rate and contact time were kept at 55°C, 6:1, 180 rpm and 45 minutes, respectively while fixing the pH of the mixture at 7.1.

scholarly journals FACTORS AFFECTING ON RICE BRAN OIL EXTRACTION USING HYDRULIC PRESS UNIT

2009 ◽  
Vol 26 (1) ◽  
pp. 306-323
Author(s):  
M. M. El-Kholy ◽  
A.M. Matouk ◽  
M. El-Sadany ◽  
Y. T. Hendawy
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Oil Extraction ◽  
Factors Affecting ◽  
Press Unit

scholarly journals Effect of Solvents and Extraction Conditions on the Properties of Crude Rice Bran Oil

2021 ◽  
Vol 18 (17) ◽  
Author(s):  
Benchamaporn PIMPA ◽  
Chakree THONGRAUNG ◽  
Pornpong SUTTHIRAK
Keyword(s):  
Fatty Acids ◽  
Rice Bran ◽  
Iodine Value ◽  
Rice Bran Oil ◽  
Oil Extraction ◽  
Optimum Conditions ◽  
Hexane Extraction ◽  
Ethanol Extraction ◽  
Effect Of Solvents ◽  
Saponification Value

This research aimed to study the effect of solvents, namely n-hexane and ethanol, on the yield of crude rice bran oil extraction. The effects of extraction temperatures of 50, 60, and 70 ºC and extraction times of 1, 3, 6, 12, and 24 h were investigated. Rice bran composition was determined. It was found that protein, lipid, moisture, fiber, ash, and carbohydrate content were 12.65±0.56, 16.32±0.81, 7.65±0.62, 10.25±0.64, 6.38±0.59, and 46.75 %, respectively. From the results, the rice bran oil yield from n-hexane extraction was significantly higher than ethanol extraction, with p < 0.05. The maximum rice bran oil obtained from n-hexane extraction was 16.23±0.34 %. The highest yield of rice bran oil was obtained from extraction temperature of 60 - 70 ºC for 12 - 24 h. After extraction by the optimum conditions at 60 ºC for 12 h, the rice bran oil was kept for 1, 2, 3, 4, and 8 weeks for investigation of its quality changes. It can be concluded that the optimum conditions for rice bran oil extraction was with using n-hexane as a solvent for extraction at a temperature of 60 ºC for 12 h. Storing oil for 0, 1, 2, 4, and 8 weeks resulted in the increase of free fatty acids (FFA) and peroxide value, whereas iodine value and saponification value were relatively constant. HIGHLIGHTS n-Hexane and ethanol effect the yield of crude rice bran oil extraction The rice bran oil yield from n-hexane extraction was higher than ethanol extraction The optimum conditions for rice bran oil extraction were with using n-hexane as a solvent for extraction at a temperature of 60 ºC for 12 h Storing rice bran oil for 8 weeks resulted in the increase of free fatty acids (FFA) and peroxide value, whereas iodine value and saponification value were relatively constant

scholarly journals Life Cycle Assessment of Rice Bran Oil Production: A Case Study in China

2021 ◽  
Author(s):  
Lihui Sun ◽  
Yuying Wang ◽  
Yuqing Gong
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Rice Bran ◽  
Rice Bran Oil ◽  
Oil Production ◽  
Oil Extraction ◽  
Oil Refining ◽  
Production Chain ◽  
Oil Storage

Abstract Environmental problems caused by the food processing industry have always been one of the concerns for the public. Herein, for the first time, a gate-to-gate life cycle assessment (LCA) was employed to evaluate the environmental impact of rice bran oil production. Four subsystems namely transportation of the raw rice bran to oil factory, crude oil extraction, oil refining as well as oil storage were established. The product sustainability software GaBi and the method CML 2001-Jan. 2016 were used to calculate and analyze the environmental burdens at each stage of the rice bran oil production chain. The results show the oil refining stage had the greatest environmental impact, followed by the oil extraction stage. High demands for coal and electricity, make a critical difference in generating vast majority of environmental impacts. Modifying the electricity source and replacing traditional fuels with cleaner ones will do bring benefits to the sustainable development of the industry.

Soybean and rice bran oil extraction in a continuous microwave system: From laboratory- to pilot-scale

2011 ◽  
Vol 104 (2) ◽  
pp. 208-217 ◽  
Author(s):  
B.G. Terigar ◽  
S. Balasubramanian ◽  
C.M. Sabliov ◽  
M. Lima ◽  
D. Boldor
Keyword(s):  
Rice Bran ◽  
Rice Bran Oil ◽  
Pilot Scale ◽  
Oil Extraction ◽  
Microwave System
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