scholarly journals Single cell oil production by Trichosporon sp.: Effects of fermentation conditions on fatty acid composition and applications in synthesis of structured triacylglycerols

LWT ◽  
2021 ◽  
pp. 111691
Author(s):  
Xi Cao ◽  
Yayu Pan ◽  
Wei Wei ◽  
Tinglan Yuan ◽  
Sen Wang ◽  
...  
1970 ◽  
pp. 125-133
Author(s):  
N. V. Hutsol ◽  
A. V. Hutsol ◽  
O. O. Mysenko ◽  
V. V. Honcharuk

Purpose. To determine the content of fat and fatty acids of total lipids in fat and oil production secondary products: in pressed powder, hydrofuse, bleaching and adsorption clays and deodorization distillate. Methods. In the process of the research, general scientific methods were used: deduction, scientific hypothesis and abstraction. For the laboratory research, the following methods were used: zootechnical analysis, liquid chromatography, spectrophotometry, titrimetry. Methods of variation statistics were used to process the obtained experimental results. Results. Indicators of lipid and fatty acid composition of by-products of fat and oil production were determined. It has been established that wastes of fat and oil production are highly nutritious products: the content of crude fat in pressed powder is 65.45%, in the hydrofuse – 68.11%, bleaching clay – 66.99% and adsorption clays – 27.05%; contains essential fatty acids – linoleic (from 0.52 to 57.77%) and α-linolenic acid (from 0.01 to 0.02%). The total amount of polyunsaturated fatty acids in pressed powder is 57.79%, in the hydrofuse – 51.19%, in bleaching clay – 0.53%, in adsorption clays – 11.6%, and in deodorization distillate – 3.94% of the total amount of acids. Among the group of saturated fatty acids, all these products contain palmitic (from 0.88% to 5.91%), stearic (from 2.80% to 12.01%) and arachidic (from 0.07% to 8.43%) acid. The amount of saturated fatty acids in the pressed powder is 8.66%, in the hydrofuse – 8.87%, in bleaching clays – 9.96%, in adsorption clays – 8.07% and in deodorization distillate – 76.9% of the total acids. Conclusions. Wastes of fat and oil production in their composition contain a significant amount of crude fat, most of the fatty acids are represented by oleic and linoleic acid, which characterizes their quality and biological value as a feed additive for feeding animals and poultry.


1985 ◽  
Vol 54 (03) ◽  
pp. 563-569 ◽  
Author(s):  
M K Salo ◽  
E Vartiainen ◽  
P Puska ◽  
T Nikkari

SummaryPlatelet aggregation and its relation to fatty acid composition of platelets, plasma and adipose tissue was determined in 196 randomly selected, free-living, 40-49-year-old men in two regions of Finland (east and southwest) with a nearly twofold difference in the IHD rate.There were no significant east-southwest differences in platelet aggregation induced with ADP, thrombin or epinephrine. ADP-induced platelet secondary aggregation showed significant negative associations with all C20-C22 ω3-fatty acids in platelets (r = -0.26 - -0.40) and with the platelet 20: 5ω3/20: 4ω 6 and ω3/ ω6 ratios, but significant positive correlations with the contents of 18:2 in adipose tissue (r = 0.20) and plasma triglycerides (TG) (r = 0.29). Epinephrine-induced aggregation correlated negatively with 20: 5ω 3 in plasma cholesteryl esters (CE) (r = -0.23) and TG (r = -0.29), and positively with the total percentage of saturated fatty acids in platelets (r = 0.33), but had no significant correlations with any of the ω6-fatty acids. Thrombin-induced aggregation correlated negatively with the ω3/6ω ratio in adipose tissue (r = -0.25) and the 20: 3ω6/20: 4ω 6 ratio in plasma CE (r = -0.27) and free fatty acids (FFA) (r = -0.23), and positively with adipose tissue 18:2 (r = 0.23) and 20:4ω6 (r = 0.22) in plasma phospholipids (PL).The percentages of prostanoid precursors in platelet lipids, i. e. 20: 3ω 6, 20: 4ω 6 and 20 :5ω 3, correlated best with the same fatty acids in plasma CE (r = 0.32 - 0.77) and PL (r = 0.28 - 0.74). Platelet 20: 5ω 3 had highly significant negative correlations with the percentage of 18:2 in adipose tissue and all plasma lipid fractions (r = -0.35 - -0.44).These results suggest that, among a free-living population, relatively small changes in the fatty acid composition of plasma and platelets may be reflected in significant differences in platelet aggregation, and that an increase in linoleate-rich vegetable fat in the diet may not affect platelet function favourably unless it is accompanied by an adequate supply of ω3 fatty acids.


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