scholarly journals Optimization of Mechanical Oil Expression from Sandbox (Hura crepitans Linn.) Seeds

2021 ◽  
Vol 2 (2) ◽  
pp. 434-449
Author(s):  
David ONWE ◽  
Adeleke Isaac BAMGBOYE
Keyword(s):  
Moisture Content ◽  
Extraction Process ◽  
Oil Extraction ◽  
Oil Yield ◽  
Process Conditions ◽  
Statistical Tool ◽  
Study Results ◽  
Roasting Temperature ◽  
Expression Time ◽  
Roasting Time

Optimization of process variables has become very vital in oil extraction processes to obtain maximum oil yield from oilseeds and nuts. This work focussed on the optimization of process oil extraction process from sandbox seed by mechanical expression. Effects of moisture content, roasting temperature, roasting time, expression pressure and expression time on oil yield from sandbox seed was studied using a 5×5 Central Composite Rotatable Design of Response Surface Methodology experimental design. Results obtained were subjected to Analysis of Variance (ANOVA) and SPSS statistical tool at (p = 0.05). Optimum conditions predicted were validated by experiments. All the processing factors were significant at (p = 0.05) for the sandbox oil yield except roasting temperature. The experimental results and predicted values showed low deviation (0.01-0.62). Oil yields obtained from the sandbox seed at varying process conditions varied from 16.38-38.68%. The maximum oil yield of 38.68% was obtained when the sandbox seed was subjected to process conditions of 6% moisture content, 85°C roasting temperature, 15 min roasting time, expression pressure of 20 MPa and 8 min pressing time. Mathematical equations to predict sandbox seed oil yield at varying process conditions were developed with an R2 (0.8908). The optimum extractable oil yield of 38.95% was predicted for sandbox seed at processing conditions of 7.03% moisture content, 97.72°C roasting temperature, 11.32 min roasting time, 15.11 MPa expression pressure and 8.57 min expression time. The study results provide data for designs of process and equipment for oil extraction from sandbox and other oilseeds.

scholarly journals Effect of process conditions on Sandbox seed oil yield by mechanical expression: A response surface approach

2020 ◽  
Vol 45 (3) ◽  
pp. 70-81
Author(s):  
Onwe Nwabueze ◽  
Bamgboye Isaac
Keyword(s):  
Moisture Content ◽  
Response Surface ◽  
Oil Extraction ◽  
Oil Yield ◽  
Process Conditions ◽  
Process Variables ◽  
Roasting Temperature ◽  
Oil Expression ◽  
Expression Time ◽  
Roasting Time

Cost of solvent oil extraction methods has made mechanical oil expression a desirable alternative. The effect of process variables on mechanical oil expression from sandbox seed was studied. The experimental design used for the study was a 52 Central Composite Rotatable Design of Response Surface Methodology. Experimental factors considered were: moisture content, roasting temperature, roasting time, expression pressure and expression time. Results obtained were analyzed at a0.05. The oil yield from the sandbox seed ranged from 16.38-38.68%, and was increased at processing variable ranges of (4.0-8.0%) moisture content, (80.0-90.0°C) roasting temperature, (5.0-15.0%) roasting time, (15.0-20.0 MPa) expression pressure and (6.0-8.0 min) extraction time. The maximum oil yield of 38.68% was obtained at the processing conditions of 6% moisture content, 85 °C roasting temperature, 15 min roasting time, expression pressure of 20 MPa and 8 min pressing time. Model equation relating the process variables to oil yield was developed. Coefficient of determination (R2) relating the process was 0.8908. The result showed that moisture content, roasting time, expression pressure and expression time had a significant influence on the sandbox oil yield. The results obtained in this study can serve for process and equipment designs for oil extraction from sandbox and other oilseeds and nuts.

scholarly journals Effect of the Esterification of Starch with a Mixture of Carboxylic Acids from Yarrowia lipolitica Fermentation Broth on Its Selected Properties

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1383 ◽  
Author(s):  
Ewa Zdybel ◽  
Tomasz Zięba ◽  
Ewa Tomaszewska-Ciosk ◽  
Waldemar Rymowicz
Keyword(s):  
Citric Acid ◽  
Carboxylic Acids ◽  
Fermentation Broth ◽  
Potato Starch ◽  
Thermal Characteristics ◽  
Degree Of Substitution ◽  
Process Conditions ◽  
Study Results ◽  
Yeast Production ◽  
Roasting Temperature

Potato starch was esterified with carboxylic acids contained in the fermentation broth from Yarrowia lipolitica yeast production. Various acid concentrations and various roasting temperatures were used to determine effects of process conditions on ester properties, including the number of acid residues attached to starch chains, starch susceptibility to amylolysis, and thermal characteristics of starch phase transitions. Study results demonstrated the effect of both the composition and the dose of the fermentation broth and of roasting temperature of starch on the number of acid residues attached to starch chains. Citric acid was more susceptible to esterification with starch (DS = 5.65%) compared to the α-ketoglutaric acid (DS = 0.12%). In the case of the latter, a higher degree of substitution was determined in the esters produced at higher roasting temperatures. The lowest digestibility (RS = 20%) was demonstrated for the starch esters with the highest degree of substitution with citric acid, whereas all starch esters showed decreased values of the thermal characteristics of pasting.

Optimization of experimental conditions on preparation of oxidized pellets with New Zealand sea sand ore

2020 ◽  
Vol 117 (4) ◽  
pp. 411
Author(s):  
Zhenxing Xing ◽  
Gongjin Cheng ◽  
Zixian Gao ◽  
He Yang ◽  
Xiangxin Xue
Keyword(s):  
Compressive Strength ◽  
New Zealand ◽  
Raw Material ◽  
Process Conditions ◽  
Experimental Conditions ◽  
Iron And Steel ◽  
Sea Sand ◽  
Oxidized Pellets ◽  
Roasting Temperature ◽  
Roasting Time

In the iron and steel industry, improving the usage amount of New Zealand sea sand ore as a raw material for ironmaking can reduce the production costs of iron and steel enterprises to a certain extent. In this paper, the New Zealand sea sand ore without any grinding pretreatment was used as raw material, oxidized pellets were prepared by using a disc pelletizer, and the experimental conditions for preparing oxidized pellets were investigated and optimized. The effects of binder dosages, roasting temperature and roasting time on the properties of pellets were mainly investigated, and the effects of roasting temperature and roasting time on the microstructure of oxidized pellets was discussed by researching XRD patterns and SEM-EDS. With the increase of binder dosages, the drop strength of green pellets and the compressive strength of oxidized pellets were gradually increased. With the increase of roasting temperature and roasting time, the compressive strength of oxidized pellets increased gradually. When the amount of New Zealand sea sand ore was increased to 40–50%, the optimal process conditions for the preparation of oxidized pellets were as follows: the dosage of binder was 1.5%, the roasting temperature was 1200 °C, and the roasting time was 20 min.

Industrial trials on coadjuvants in olive oil extraction process: Effect on rheological properties, energy consumption, oil yield and olive oil characteristics

2017 ◽  
Vol 205 ◽  
pp. 34-46 ◽  
Author(s):  
Antonia Tamborrino ◽  
Giacomo Squeo ◽  
Alessandro Leone ◽  
Vito Michele Paradiso ◽  
Roberto Romaniello ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Olive Oil ◽  
Rheological Properties ◽  
Extraction Process ◽  
Oil Extraction ◽  
Oil Yield ◽  
Oil Characteristics

scholarly journals Optimization and Kinetic Study of Soybean Oil Extraction Rate with Ternary Solvents Mixture

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
A.I Usenu
Keyword(s):  
Optimal Design ◽  
Ethyl Acetate ◽  
Process Design ◽  
Extraction Process ◽  
Solvent Mixture ◽  
Oil Extraction ◽  
Oil Yield ◽  
Quadratic Model ◽  
Design Expert ◽  
First Order

The rate of Soybean (Glycine max) oil (SBO) extraction with a ternary solvent mixture (water, ethanol, and ethyl acetate) optimised with I-optimal Design (IOD) under the Mixture Methodology of the Design Expert (12.0.1.0). The data obtained were analysed statistically. The effect of extraction time (60-180 mins) and temperature (65-70 °C) on SBO was investigated and data obtained were used to evaluate the suitable kinetic and thermodynamic properties of the extraction. The maximum Rate of Oil Yield (32.35 mg/min) was achieved at the solvent mixture of 9.17% water, 6.67% ethanol, and 84.17% ethyl acetate. The Quadratic model best describes the Rate of Oil Yield, with a correlation coefficient (R2) of 0.9922 and an Adjusted R2 of 0.9825. The rate equation for the extraction process is a first-order reaction with ‘n’ value of 1.12756 (≅1.000) while the activation energy (Ea) and Arrhenius constant were 6508.1 kJ/mol and 38.901 s-1, respectively. The study has demonstrated the suitability of I-Optimal Design for the investigation of the Rate of Oil Yield from soybean and the result could be employed in oil extraction process design.

Optimization of mechanical oil extraction process from Camellia oleifera seeds regarding oil yield and energy consumption

2019 ◽  
Vol 42 (6) ◽  
Author(s):  
Shuai Huang ◽  
Youmin Hu ◽  
Fengcheng Li ◽  
Wenwen Jin ◽  
Vikas Godara ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Extraction Process ◽  
Oil Extraction ◽  
Oil Yield ◽  
Camellia Oleifera

A Comparative Application of Latin Hypercube Design and Box-Behnken Design Methods in Extracting Sesameoil

2021 ◽  
Vol 43 (2) ◽  
pp. 135-135
Author(s):  
Aman Elmi Tufa Aman Elmi Tufa ◽  
Youmin Hu Youmin Hu ◽  
Shuai Huang Shuai Huang ◽  
Wenwen Jin Wenwen Jin ◽  
Fengcheng Li Fengcheng Li
Keyword(s):  
Extraction Methods ◽  
Oil Extraction ◽  
Design Methods ◽  
Oil Yield ◽  
Process Conditions ◽  
Latin Hypercube Design ◽  
Latin Hypercube ◽  
Box Behnken Design ◽  
Design Options ◽  
The Given

In the past decades, most researchers focus on process optimization and extraction methods to improve oil extraction from oilseeds. However, no information available on comparative analysis of different design methods to improve the process. The objective of this study was to evaluate the applicability of Latin hypercube design (LHD) and Box-Behnken Design (BBD) in oil extraction. Experimental oil yield, analysis of variance (ANOVA) of the model, and practical observation were used to compare the methods. The result shows both methods can supply adequate data for experiments. The range of oil yield is 26 – 41% for BBD and 31 – 41% for LHD. Analytically, the ANOVA result indicates that the model constructed of the LHD experiment has a better prediction of observed oil yield at a regression coefficient (R2) of 0.98 and Root Mean Square Error (RMSE) of 0.4 while BBD has R20.87 and RMSE 1.4. From the experiment result, BBD is more suit to design, efficient, and easier to extract oil. LHD has better design options, more flexible but less efficient in the experiment. For the given process conditions, theresult comparison empirically analyzed suggests both methods can be applied for oil extraction.

STUDY OF TEMPERATURE AND ROASTING TIME ON THE QUALITY OF COCOA POWDER

2012 ◽  
Vol 2 (1) ◽  
pp. 41-52
Author(s):  
Kurnia Herlina Dewi ◽  
Meizul Zuki ◽  
Mulad Subagio
Keyword(s):  
Moisture Content ◽  
Microbial Contamination ◽  
Fat Content ◽  
Effect Of Temperature ◽  
Organoleptic Properties ◽  
Cocoa Powder ◽  
Physical Chemical ◽  
Roasting Temperature ◽  
Roasting Time

This study aims to determine the effect of temperature and roasting time the quality of cocoa powder by SNI, to determine the effect of roasting time (100oC and 115oC) for the quality of cocoa powder (physical, chemical, biological, and organoleptic) and to determine the effect of roasting time : 30, 60, 90 and 120 minutes of quality cocoa powder. Variables in this study to determine the quality of cocoa powder consists only of fat content, moisture content, pH, microbial contamination is the number of colonies of bacteria, fungi, Escherichia coli, refinement, and organoleptic properties of the cocoa powder. Results obtained show the temperature effect and long penyangraian penyangraian nibs cocoa powder quality results as a whole meet the quality standards. Effect of roasting temperature to produce quality cocoa powder on the observation variables (pH, moisture content, fat content) and different organoleptic properties, whereas the level of tenderness, microbial contamination, cocoa powder is no different. The effect of roasting time to produce quality cocoa powder on the observation variables (pH, moisture content, fat content) and different organoleptic properties. The level of tenderness and microbial contamination non-significant.

scholarly journals Innovative and flexible single screw press for the oil extraction of Calophyllum seeds

2019 ◽  
Author(s):  
Yuli Setyo Indartono ◽  
Heriawan Heriawan ◽  
Ika Amalia Kartika
Keyword(s):  
Moisture Content ◽  
Feed Rate ◽  
Acid Value ◽  
High Viscosity ◽  
Oil Extraction ◽  
Screw Press ◽  
Oil Yield ◽  
Oil Refining ◽  
Pressing Temperature ◽  
Single Screw

The oil extraction of Calophyllum seeds using a conventional single screw press leads to an inferior yield and is perceived to be less efficient as well as difficult to operate. An innovative and flexible single screw press was, therefore, designed and investigated in this study to solve these problems. Moreover, the effects of the seeds’ moisture content, pressing temperature and seeds’ feed rate on the oil yield and quality were identified to determine the optimal oil extraction performance from the Calophyllum seeds. The study found that the seeds’ moisture content, pressing temperature and seeds’ feed rate generally affected the oil yield. The yield indeed improved as the pressing temperature and the seeds’ feed rate increased respectively from 45 to 75°C and 1.5 to 5 kg·h<sup>–1</sup>. The oil yield also ameliorated as the seeds’ moisture content rose from 1.7 to 12.8%, but it was optimal when the seeds’ moisture content was 5.5%. The best oil yield of 80.6% was, thus, obtained with the seeds’ moisture content of 5.5%, a pressing temperature of 75°C and the seeds’ feed rate of 5 kg per h. Although the quality of the crude oil was poor with a high viscosity (³ 94 mm<sup>2</sup>·s<sup>–1</sup>) and high acid value (³ 48 mg KOH/g), its density, saponification and iodine values were acceptable. After the oil refining process by degumming and neutralisation, its quality improved and met the Indonesian Biofuel Standards, except for its viscosity.

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