scholarly journals Local perceptions and traditional methods for Carapa procera oil production in Mali

2019 ◽  
Vol 22 ◽  
pp. 16-22
Author(s):  
Urbain Dembélé ◽  
Aïssata A. Diallo ◽  
Anne Mette Lykke ◽  
Yénizié Koné ◽  
Bino Témé ◽  
...  
Keyword(s):  
Seed Storage ◽  
Oil Production ◽  
Extraction Process ◽  
Oil Extraction ◽  
Local Perceptions ◽  
Seed Collection ◽  
Oil Processing ◽  
Cultural Considerations ◽  
Local Practices ◽  
Carapa Procera

Carapa procera is a wild oil tree species traditionally exploited in Mali for seed oil. Carapa oil is highly sought because of therapeutic, cosmetic, insecticidal and repellent properties. The purpose of this work was to contribute to the understanding of local practices in C. procera oil production and local perceptions related thereto. The method used was based on surveys in four production localities and tests of oil production according to the traditional processes practiced by the processors. Two methods of seed storage and oil extraction processes were identified. Women were the main actors in seed collection and oil processing. The average oil extraction efficiency from the seeds was 23.1% and varied among sites. The wet extraction process was the most efficient. In addition to socio-cultural considerations, difficulties related to technology (lack of adequate extraction equipment) and the decrease of carapa populations limit the full development of processing activities. It is necessary to undertake options to improve traditional oil production processes such as education and introduction of shea presses in order to reduce labour intensity, improve efficiency and ensure quality standards. It also requires action for the sustainable management and conservation of the carapa species.

Optimization of a coconut oil extraction process with supercritical CO2 considering economical and thermal variables

2021 ◽  
pp. 105160
Author(s):  
E. Torres-Ramón ◽  
C.M. García-Rodríguez ◽  
K.H. Estévez-Sánchez ◽  
I.I. Ruiz-López ◽  
G.C. Rodríguez-Jimenes ◽  
...  
Keyword(s):  
Supercritical Co2 ◽  
Coconut Oil ◽  
Extraction Process ◽  
Oil Extraction

scholarly journals Acoustic cavitation by means ultrasounds in the extra virgin olive oil extraction process

2017 ◽  
Vol 126 ◽  
pp. 82-90 ◽  
Author(s):  
R. Amirante ◽  
E. Distaso ◽  
P. Tamburrano ◽  
A. Paduano ◽  
D. Pettinicchio ◽  
...  
Keyword(s):  
Olive Oil ◽  
Virgin Olive Oil ◽  
Acoustic Cavitation ◽  
Extra Virgin Olive Oil ◽  
Extraction Process ◽  
Oil Extraction

scholarly journals Yield Evaluation and Primary Energy Assessment of the Jatropha curcas Oil Extraction Process for Use as a Biofuel in Engines

2021 ◽  
pp. 37-46
Author(s):  
Fredy Torres Mejía ◽  
Juan Alexander Torres Mejía ◽  
Henry Edgardo Maradiaga Galeano ◽  
Claudia López Toro
Keyword(s):  
Jatropha Curcas ◽  
Extraction Process ◽  
Primary Energy ◽  
Oil Extraction ◽  
Raw Material ◽  
Shell Weight ◽  
Jatropha Curcas Oil ◽  
Energy Assessment ◽  
The One ◽  
Jatropha Cake

The aim of this work is to evaluate the performance of the extraction and mechanical filtering of Jatropha curcas oil and to evaluate the primary energy of the raw material resulting from the process, this is a qualitative-quantitative study of transversal order based on measurements and analysis of the process in situ: The following factors were evaluated as factors: weight of oil per seed processed, weight of pressed cake, and measurements in the filtering process, from which a balance of matter of the process used was constructed, and the energy valuation of the oil and pressed cake, energy was used as the response variable, measured in Tons of Oil Equivalent (TEP), Barrels of Oil Equivalent (BEP), and tons of Carbon Dioxide Equivalent (Ton CO2eq). The seed used is Creole, the one existing in the area, the extraction was carried out in a KEK-P0101 press, and a KEK-F0090 filter. The collected seeds were dried and then discarded, the average shell weight is 40% of the total weight of the dry seed, from the oil extraction process a yield of 18.6% was obtained using seed with 5.8% humidity, and from the oil filtering process, when it passed through the filter, no weight loss in kg was obtained; finally, the equivalent primary energy valuation of one ton of oil is 39076. 39 MJTon-1, which is equivalent to 0.94 TEP, 2.90 Ton CO2 eq, and 20.87 BEP; in the same way one ton of Jatropha cake represents 15969.30 MJ, equivalent to 0.38 TEP, 1.18 Ton CO2 eq, and 8. 53 BEP, and the total primary energy between one ton of oil and one ton of Jatropha cake after oil extraction together contain 55045.61 MJTon-1, equivalent to 1.32 TEP, 4.08 Ton CO2 eq, and 29.41 BEP.

scholarly journals THE STATE OF SKIN AND MUCOSAL MICROBIOTES IN WORKERS AS AN ADAPTATION CRITERION TO OCCUPATIONAL FACTORS (BASED ON THE OIL EXTRACTION INDUSTRY)

2019 ◽  
Vol 98 (9) ◽  
pp. 1015-1020
Author(s):  
G. G. Gimranova ◽  
Lyaylya M. Masyagutova ◽  
L. G. Gizatullina
Keyword(s):  
Respiratory Tract ◽  
Working Conditions ◽  
Oil Production ◽  
Oil Extraction ◽  
Upper Respiratory Tract ◽  
Occupational Factors ◽  
Mucous Membranes ◽  
Number Of Microorganisms ◽  
Deep Layers ◽  
Upper Respiratory

Introduction. The working conditions of workers in oil-producing industries do not exclude the negative impact of a harmful biological factor of the working environment. The combined effect of harmful and dangerous factors (noise, vibration, a complex of chemicals of varying intensity), adverse climatic and geographical conditions in the process of oil production lead to violations of the structural and functional state of the body and increase the risk of disease caused by opportunistic microorganisms. Material and methods. To study the effect of working conditions of workers engaged in oil extraction on the qualitative and quantitative composition of the microorganism, an investigation of skin microbiota and microbiocenosis of the upper respiratory tract mucosa was carried out. Using the method of skin prints from the inner surface of the forearm on a plate with blood agar allowed, along with the total number of microorganisms, to determine the presence of hemolytic forms on the surface and in deep layers of the skin of oil workers. Estimate the influence of working conditions on the microbiocenosis of the upper respiratory tract and mucosal anti-infective resistance of the mucous membrane analyzed the species composition of the microbiota of the nasal mucosa and pharynx in workers, directly and indirectly engaged in oil production. Results. Studies show in workers directly involved in oil extraction, the number of microorganisms of the skin is significantly higher than that of healthy people in average by 2.0-3.6 times on the surface and 1.7-3.7 times in the deep layers. For machinists, these differences achieve 2.5-4.0 and 1.2-4.0 times, respectively, and for engineering and technical workers, 1.4-2.3 on the skin surface and 1.2-2.5 in the deep layers. For drillers, drillers’ assistants, operators, the presence of conditionally pathogenic microorganisms of 3-5 or more components on the nasal and pharyngeal polymicrobial associations is typical, and for engineers, engineers and technicians from 2-4, less often 5 components. Conclusion. The impact of occupational factors affecting workers in the process of oil extraction, contributes to the development of microbiocenosis lesions of the skin and mucous membranes. On the surface of the skin and mucous membranes of the upper respiratory tract there are a wide variety and specific structure of the microflora, specific to each of the studied groups in the workers examined.

scholarly journals Central Composite Design, Kinetic Model, Thermodynamics, and Chemical Composition of Pomelo (Citrus Maxima (Burm.) Merr.) Essential Oil Extraction by Steam Distillation

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 2075
Author(s):  
Tan Phat Dao ◽  
Thanh Viet Nguyen ◽  
Thi Yen Nhi Tran ◽  
Xuan Tien Le ◽  
Ton Nu Thuy An ◽  
...  
Keyword(s):  
Activation Energy ◽  
Kinetic Model ◽  
Essential Oil ◽  
Rate Constant ◽  
Flow Rate ◽  
Steam Distillation ◽  
Extraction Process ◽  
Oil Extraction ◽  
Extraction Time ◽  
Pomelo Peel

Pomelo peel-derived essential oils have been gaining popularity due to greater demand for stress relief therapy or hair care therapy. In this study, we first performed optimization of parameters in the pomelo essential oil extraction process on a pilot scale to gain better insights for application in larger scale production. Then extraction kinetics, activation energy, thermodynamics, and essential oil quality during the extraction process were investigated during the steam distillation process. Three experimental conditions including material mass, steam flow rate, and extraction time were taken into consideration in response surface methodology (RSM) optimization. The optimal conditions were found as follows: sample weight of 422 g for one distillation batch, steam flow rate of 2.16 mL/min and extraction time of 106 min with the coefficient of determination R2 of 0.9812. The nonlinear kinetics demonstrated the compatibility of the kinetic model with simultaneous washing and unhindered diffusion with a washing rate constant of 0.1515 min−1 and a diffusion rate constant of 0.0236 min−1. The activation energy of the washing and diffusion process was 167.43 kJ.mol−1 and 96.25 kJ.mol−1, respectively. The thermodynamic value obtained at the ΔG° value was −35.02 kJ.mol−1. The quality of pomelo peel essential oil obtained by steam distillation was characterized by its high limonene content (96.996%), determined by GC-MS.

scholarly journals DEVELOPMENT OF TECHNOLOGY AND ORGANIZATION OF THE PRODUCTION OF A HYDROCARBON BASE FOR DRILLING FLUIDS AS PART OF IMPORT SUBSTITUTION FOR OIL PRODUCTION ENTERPRISES

2020 ◽  
Vol 2020 (1) ◽  
pp. 45-46
Author(s):  
Igor' Kuzora ◽  
Dmitriy Dubrovskiy ◽  
Aleksandr Stadnik
Keyword(s):  
Import Substitution ◽  
Oil Production ◽  
Drilling Fluids ◽  
Oil Processing

The process of developing and introducing into production the technology for obtaining the base for drilling fluids based on products of deep oil processing is described

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