Water content, critical micelle concentration of phospholipids and formation of association colloids as factors influencing autoxidation of rapeseed oil

2021 ◽  
Author(s):  
Ewa BĄkowska ◽  
Aleksander Siger ◽  
Magdalena RudziŃska ◽  
Krzysztof Dwiecki
Keyword(s):  
Critical Micelle Concentration ◽  
Water Content ◽  
Rapeseed Oil ◽  
Factors Influencing ◽  
Association Colloids

scholarly journals On the Durability of the Hydraulic Satellite Motor Working Mechanism in Overload Condition

2016 ◽  
Vol 16 (1) ◽  
pp. 35-46
Author(s):  
M. Szkodo ◽  
A. Stanisławska ◽  
P. Śliwiński
Keyword(s):  
Rapeseed Oil ◽  
Laboratory Tests ◽  
Contact Fatigue ◽  
Working Mechanism ◽  
Bending Fatigue ◽  
Factors Influencing ◽  
Surface Contact

Abstract The paper presents the newest construction of the hydraulic satellite pump/motor. In this study, the fracture of the hydraulic satellite motor working mechanism is investigated. Factors influencing the durability of satellite working mechanism have been described. The durability of the hydraulic satellite motor working mechanism at a load, corresponding to a pressure of 15 MPa supplied with refined rapeseed oil is very low. Analyses of construction and laboratory tests showed that the satellites teeth wear out the fastest. Results showed that bending fatigue and surface contact fatigue of the satellites are the main cause of the hydraulic satellite motor working mechanism failures.

scholarly journals Value of hydroalcoholic treatment of rapeseed for oil extraction and protein enrichment

OCL ◽  
2018 ◽  
Vol 26 ◽  
pp. 1 ◽  
Author(s):  
Morgane Citeau ◽  
Jennifer Regis ◽  
Patrick Carré ◽  
Frédéric Fine
Keyword(s):  
Protein Content ◽  
Water Content ◽  
Significant Influence ◽  
Rapeseed Oil ◽  
Oil Extraction ◽  
The Other ◽  
Protein Enrichment ◽  
Hexane Extraction ◽  
Meal Protein ◽  
Glucosinolate Concentration

This study investigated alternative solvents: ethanol and isopropanol, to replace hexane and enhance the quality and value of oil and meal. Rapeseed oil extraction was carried out using ethanol (92 wt.% or 96 wt.%), isopropanol (84 wt.% or 88 wt.%) or hexane (as reference). Results show that hydroalcoholic extraction increased meal protein content by 13% compared to hexane extraction, but without significant influence of alcohol and water content. However, increasing water content improved glucosinolate extractability. Isopropanol 84 wt.% eliminated most glucosinolates from the seeds, decreasing glucosinolate concentration by 49–73% compared to meals extracted by the other alcohols.

scholarly journals Evaluation of a sulfanilic acid based surfactant in crude oil demulsification: an experimental study

2018 ◽  
Vol 73 ◽  
pp. 20 ◽  
Author(s):  
Ghassem Zargar ◽  
Reza Ghol Gheysari ◽  
Mohammad Ali Takassi ◽  
Alireza Rostami ◽  
Amin Zadehnazari
Keyword(s):  
Critical Micelle Concentration ◽  
Crude Oil ◽  
Water Content ◽  
Sulfanilic Acid ◽  
Oil Composition ◽  
Conductivity Method ◽  
Water Separation ◽  
Benzene Sulfonic Acid ◽  
Dodecyl Benzene Sulfonic Acid ◽  
Oil Emulsions

In this study, 2-Amino-5-Dodecyl Benzene Sulfonic Acid (ADBSA) surfactant has been prepared and tested as crude oil emulsions demulsifier. Electrical conductivity method was used to obtain the critical micelle concentration of surfactant. A critical micelle concentration value of 0.225 wt.%. Bottle testing measurements were conducted to investigate the effect of several parameters including temperature, water content, salinity, demulsifier dosage and type of crude oil (composition) on the demulsification efficiency in presence of new synthetic demulsifier. A reduction of emulsion stability was observed with increasing water content or demulsifier dosage decrease. A water separation index of 98% was recorded at 60 °C.

Factors influencing salt and water movement near crystalline salts in relatively dry soil

Soil Research ◽  
1974 ◽  
Vol 12 (2) ◽  
pp. 77 ◽  
Author(s):  
DR Scotter
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Soil Texture ◽  
Water Movement ◽  
Factors Influencing ◽  
Initial Soil ◽  
Crystalline Salt ◽  
Water Accumulation ◽  
Dry Soil

Crystalline salts were placed at one end of sealed tubes of initially uniformly wet soil. The effect of soil texture, the initial soil water content, temperature, and the particular salt used on the resulting water and salt distributions in the soil was studied. In all experiments using relatively dry soil a zone of water accumulation adjacent to the salt, and a zone of water depletion further away from the salt, developed. Dissolved salt moved into the wetter zone next to the salt. The rate at which salt dissolved and moved out into the soil was found to depend very strongly on the solubility and saturated solution vapour pressure of the salt used, and the initial soil water content. Soil temperature and texture were less important factors. In some experiments quite large amounts of water accumulated in the crystalline salt, apparently when adequate contact was not maintained between the salt and the soil as the salt dissolved.

TWO FACTORS INFLUENCING DOSE RECONSTRUCTION IN LOW DOSE RANGE: THE VARIABILITY OF BKG INTENSITY ON ONE INDIVIDUAL AND WATER CONTENT

2015 ◽  
pp. ncv382 ◽  
Author(s):  
Tengda Zhang ◽  
Wenyi Zhang ◽  
Zhixin Zhao ◽  
Haiying Zhang ◽  
Shuzhou Ruan ◽  
...  
Keyword(s):  
Water Content ◽  
Low Dose ◽  
Dose Range ◽  
Dose Reconstruction ◽  
Factors Influencing ◽  
Two Factors

Antioxidant activity and synergism of canolol and α-tocopherol in rapeseed oil is affected by the presence of phospholipid association colloids

LWT ◽  
2020 ◽  
Vol 133 ◽  
pp. 110095
Author(s):  
Ewa Rokosik ◽  
Aleksander Siger ◽  
Magdalena Rudzińska ◽  
Krzysztof Dwiecki
Keyword(s):  
Antioxidant Activity ◽  
Rapeseed Oil ◽  
Association Colloids

Factors Influencing the Growth of Chicks and Poults Fed Rations Containing Rapeseed Oil Meal

1954 ◽  
Vol 53 (3) ◽  
pp. 407-418 ◽  
Author(s):  
F. H. Kratzer ◽  
P. N. Davis ◽  
D. E. Williams ◽  
B. J. Marshall
Keyword(s):  
Rapeseed Oil ◽  
Factors Influencing
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