scholarly journals Enzyme-assisted three-phase partitioning: An efficient alternative for oil extraction from Sesame (Sesamum indicum L.)

2020 ◽  
Vol 71 (1) ◽  
pp. 346 ◽  
Author(s):  
P. Juvvi ◽  
S. Debnath
Keyword(s):  
Oil Recovery ◽  
Oil Quality ◽  
Oil Extraction ◽  
Sesamum Indicum ◽  
Optimum Conditions ◽  
Phase Partitioning ◽  
Saponification Value ◽  
Peroxide Values ◽  
Three Phase ◽  
Efficient Alternative

Three-phase partitioning (TPP) was explored for oil extraction from Sesamum indicum L. seeds. The process parameters, namely the salt concentration, slurry/t-butanol ratio and system pH were standardized. The optimum conditions for maximum oil recovery using TPP were an ammonium sulphate concentration of 40% (w/v), slurry/t-butanol ratio of 1:1 (v/v) and system pH of 5.0. The powdered seeds were subjected to enzyme-assisted three-phase partitioning (EATPP) which was pre-treated with pectinase, protease and a mixture of ɑ-amylase and amylo-glucosidase (1:1 ratio) followed by TPP (as standardized conditions) and its efficacy in recovering oil was compared with TPP and solvent extraction (SE). Out of all the enzymes studied, EATPP with pectinase resulted in the highest oil recovery (86.12%), which was higher than that of TPP (78.24%). The free fatty acids, saponification value and peroxide values were observed to be lower in the case of TPP and EATPP when compared to SE, indicating better oil quality.

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 Effect of screw-press extraction process parameters on the recovery and quality of pistachio oil

2020 ◽  
Vol 71 (2) ◽  
pp. 360
Author(s):  
V. M. Fantino ◽  
R. M. Bodoira ◽  
M. C. Penci ◽  
P. D. Ribotta ◽  
M. L. Martínez
Keyword(s):  
Oil Recovery ◽  
Oil Quality ◽  
Extraction Process ◽  
Oil Extraction ◽  
Quality Parameters ◽  
Screw Press ◽  
Chemical Quality ◽  
Seed Moisture Content ◽  
Pistachio Oil

Pistachio nuts have high economical and nutritional value, mostly due to their elevated oil con­tent (50%), which is composed mainly of oleic and linoleic fatty acids. Box-Behnken experimental designs were performed to optimize the oil extraction by response surface analysis. The independent variables measured were seed moisture content (SMC), restriction die (RD), screw press speed (PS) and pressing temperature (PT), while the response variables considered were oil recovery (OR), fine solid contents in the oil (FSC), oil remain­ing in the cake (OC) and parameters related to oil quality (free fatty acid composition (FFAC, mg KOH/g oil), peroxide value (PV, meq O2/kg oil), K232, K270 and pigment contents, mg/kg oil). Given that the chemical quality of pistachio nut oil pressed under different conditions was not affected, the process response was optimized in order to maximize OR under two pressing temperatures. Therefore, at 75 °C, pistachio oil extraction showed a maximum OR (79.61 g/100 g oil) at 8% SMC, 4 mm RD and 20 rpm SP; while, under cold-pressed conditions, the maximum OR (65.97 g/100 g oil) was achieved at 10% SMC, 4mm RD and 20 rpm SP. It is important to highlight that OR values were higher than the results reported previously and the chemical quality parameters from both oils were in the range of Codex standards for virgin (non-refined) oils (FFAC < 0.31 and PV < 0.33).

scholarly journals Use of a Combined Technology of Ultrasonication, Three-Phase Partitioning, and Aqueous Enzymatic Oil Extraction for the Extraction of Oil fromSpirogyrasp.

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Adisheshu Reddy ◽  
Abir B. Majumder
Keyword(s):  
Cell Wall ◽  
Soxhlet Extraction ◽  
Dry Weight ◽  
Oil Extraction ◽  
Phase Partitioning ◽  
Algal Oil ◽  
Operational Temperature ◽  
Three Phase ◽  
Algal Suspension ◽  
Optimized Conditions

Algal oil fromSpirogyrasp. was extracted using a combined technology of ultrasonication, three-phase partitioning, and aqueous enzymatic oil extraction. Ultrasonication was done to rupture the cell wall and papain was used for an easier release of the trapped oil. The salt concentration for three-phase partitioning, preincubation period with (or without) the protease, and its operational temperature were optimized for a maximum possible yield of the oil and the effect of ultrasonication, and three-phase partitioning with (or without) the protease were studied. It was found that under optimized conditions at 50% ammonium sulphate concentration usingtert-butanol (in 1 : 1, v/v ratio) a presonicated and papain treated algal suspension could produce 24% (w/w, dry weight) oil within few hours which was ten times higher as compared to the oil obtained by Soxhlet extraction using hexane and two times higher than the oil obtained without using the protease.

Review of Green Solvents for Oil Extraction from Natural Products Using Different Extraction Methods

2014 ◽  
Vol 661 ◽  
pp. 58-62 ◽  
Author(s):  
Naimah Sahad ◽  
Ayub Md Som ◽  
Alawi Sulaiman
Keyword(s):  
Natural Products ◽  
Oil Quality ◽  
Operating Cost ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Oil Extraction ◽  
Green Solvents ◽  
Green Solvent ◽  
Optimum Conditions ◽  
Qualitative And Quantitative

This paper provides an overview of the use of green solvents for oil extraction from natural product using soxhlet extraction and supercritical fluid extraction (SFE) methods. In terms of qualitative and quantitative determinations on the extracted oils, the use of green solvents was comparable with n-hexane. For soxhlet extraction method, the integration of microwave application into the soxhlet at their optimum conditions has shown improvement in oil yield, oil quality, solvent consumption and extraction time. SFE using CO2also revealed promising results as soxhlet extraction but apparently it involved high operating cost and difficult to control. Despite of that, all the studies successfully demonstrated the suitability of green solvent as an alternative to petroleum driven solvents for extraction of oils from natural products.

ASSESSMENT OF OIL WELL PRODUCTIVITY IN LOW-PERMEABILITY RESERVOIRS IN THE FIELDS OF EASTERN SIBERIA

2017 ◽  
pp. 30-36
Author(s):  
R. V. Urvantsev ◽  
S. E. Cheban
Keyword(s):  
Oil Recovery ◽  
Large Scale ◽  
Oil And Gas ◽  
Oil Extraction ◽  
Low Permeability ◽  
Oil Well ◽  
Eastern Siberia ◽  
Development Costs ◽  
Traditional Fields ◽  
Low Permeability Reservoirs

The 21st century witnessed the development of the oil extraction industry in Russia due to the intensifica- tion of its production at the existing traditional fields of Western Siberia, the Volga region and other oil-extracting regions, and due discovering new oil and gas provinces. At that time the path to the development of fields in Eastern Siberia was already paved. The large-scale discoveries of a number of fields made here in the 70s-80s of the 20th century are only being developed now. The process of development itself is rather slow in view of a number of reasons. Create a problem of high cost value of oil extraction in the region. One of the major tasks is obtaining the maximum oil recovery factor while reducing the development costs. The carbonate layer lying within the Katangsky suite is low-permeability, and its inventories are categorised as hard to recover. Now, the object is at a stage of trial development,which foregrounds researches on selecting the effective methods of oil extraction.

Quality Analysis of Fresh Cheese Prepared Using Wrightia tinctoria Proteases

2020 ◽  
Vol 16 (9) ◽  
pp. 1309-1317
Author(s):  
Anusha Rajagopalan ◽  
Bindhu O. Sukumaran
Keyword(s):  
Textural Properties ◽  
Artemia Salina ◽  
Quality Analysis ◽  
Human Consumption ◽  
Cheese Making ◽  
Phase Partitioning ◽  
Milk Clotting ◽  
Three Phase ◽  
Fresh Cheese ◽  
Wrightia Tinctoria

Background: Aqueous leaf extract of Wrightia tinctoria has been in use for artisanal cheese preparation in diverse parts of India. Scientific validation behind the milk clotting potential of W. tinctoria stem proteases purified through three-phase partitioning (TPP) has been attempted. However, its contribution to cheese quality standards has not been tried yet. Objective: To evaluate the suitability of three-phase partitioned W. tinctoria (WT) stem proteases in fresh cheese making. Methods: Fresh cheese was prepared using W. tinctoria TPP proteases and its characteristics were compared with that of commercial plant milk coagulant, Enzeco® (CEz) and rennin (CRn). Yield, organoleptic and textural properties, total fat, protein and moisture content of all cheese were determined according to FSSAI standards. Toxicity of the TPP proteases was assessed on the shrimp model (Artemia salina egg and Litopenaeus vannamei post-larval shrimps). Results: TPP proteases were found to be non-toxic and safe for human consumption with no change in egg hatchability and survival of the shrimps in comparison to that of control. Cheese analysis results indicated perceptible resemblance in nutritional characteristics of WT cheese with control cheese. Yield, textural properties and organoleptic acceptance of WT cheese resembled more closely with that of CEz cheese. Conclusion: Observation from the study paves the way for the acceptance of W. tinctoria proteases as a suitable vegetable rennet for fresh cheese making.

scholarly journals Pore-Scale Simulation of Particle Flooding for Enhancing Oil Recovery

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2305
Author(s):  
Xiangbin Liu ◽  
Le Wang ◽  
Jun Wang ◽  
Junwei Su
Keyword(s):  
Oil Recovery ◽  
Flow Behavior ◽  
Ct Scanning ◽  
Water Flooding ◽  
Pore Scale ◽  
Simulation Techniques ◽  
Three Phase ◽  
Remaining Oil ◽  
Three Phase Flow ◽  
Displacement Force

The particles, water and oil three-phase flow behaviors at the pore scale is significant to clarify the dynamic mechanism in the particle flooding process. In this work, a newly developed direct numerical simulation techniques, i.e., VOF-FDM-DEM method is employed to perform the simulation of several different particle flooding processes after water flooding, which are carried out with a porous structure obtained by CT scanning of a real rock. The study on the distribution of remaining oil and the displacement process of viscoelastic particles shows that the capillary barrier near the location with the abrupt change of pore radius is the main reason for the formation of remaining oil. There is a dynamic threshold in the process of producing remaining oil. Only when the displacement force exceeds this threshold, the remaining oil can be produced. The flow behavior of particle–oil–water under three different flooding modes, i.e., continuous injection, alternate injection and slug injection, is studied. It is found that the particle size and the injection mode have an important influence on the fluid flow. On this basis, the flow behavior, pressure characteristics and recovery efficiency of the three injection modes are compared. It is found that by injecting two kinds of fluids with different resistance increasing ability into the pores, they can enter into different pore channels, resulting in the imbalance of the force on the remaining oil interface and formation of different resistance between the channels, which can realize the rapid recovery of the remaining oil.

Extraction and three-phase partitioning behavior of proteases from papaya peels

2010 ◽  
Vol 45 (7) ◽  
pp. 1172-1175 ◽  
Author(s):  
Phanuphong Chaiwut ◽  
Punyawatt Pintathong ◽  
Saroat Rawdkuen
Keyword(s):  
Phase Partitioning ◽  
Three Phase ◽  
Partitioning Behavior
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