scholarly journals Seasonal effects of the fatty acid composition of phospholipid and triacylglycerol in the muscle and liver of male Salmo trutta macrostigma

2021 ◽  
Vol 72 (4) ◽  
pp. e435
Author(s):  
S. Kaçar ◽  
H. Kaya ◽  
M. Başhan
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Acid Composition ◽  
Total Lipid ◽  
Salmo Trutta ◽  
Seasonal Effects ◽  
Lipid Contents ◽  
Liver Tissues

The seasonal effects on the fatty acid composition of triacylglycerol (TAG) and phospholipid (PL) in the muscle and liver of male Salmo trutta macrostigma were determined using the gas chromatographic (GC) method. The fatty acid (FA) compositions of total lipid, PL and TAG fractions were determined in muscle and liver tissues of S. trutta macrostigma. The phospholipids contained a higher proportion of 16:0 compared to the TAG in the muscle tissue of S. trutta macrostigma. Docosahexaenoic acid (22:6 ω-3) and eicosapentaenoic acid (20:5 ω-3) contents were high in both muscle and liver tissues. The total lipid contents in the muscle and liver were 1.07-2.45 and 3.00-4.64%, respectively. S. trutta macrostigma is a rich source of ω-3 and ω-6, polyunsaturated fatty acids (PUFA) with numerous benefits to human health.

scholarly journals Biochemical Markers for Puberty in the Monkey Testis: Desmosterol and Docosahexaenoic Acid1

1997 ◽  
Vol 82 (6) ◽  
pp. 1911-1916 ◽  
Author(s):  
William E. Connor ◽  
Don S. Lin ◽  
Martha Neuringer
Keyword(s):  
Fatty Acids ◽  
Young Adults ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Old Age ◽  
Acid Composition ◽  
Lipid Composition ◽  
Rhesus Monkeys ◽  
Fatty Acid Pattern

Abstract We previously reported that the sperm of rhesus monkeys and humans uniquely contain large amounts of desmosterol not found in other tissues and have a high concentration of the highly polyunsaturated n-3 fatty acid, docosahexaenoic acid (22:6 n-3). However, the lipid composition of the testis, from which sperm originate, is unknown. During puberty, the testis undergoes remarkable morphological changes as testosterone levels rise and sperm production begins. We hypothesized that testicular maturation might also involve dramatic changes in lipid composition. Accordingly, we characterized the sterol and fatty acid composition of the testis of rhesus monkeys throughout the lifespan, from birth to old age. Although the cholesterol content in the testis remained relatively unchanged throughout life, the desmosterol content first decreased from 59 μg/g in infants to 6 μg/g in prepubertal monkeys, increased to 83 μg/g during puberty, and reached a plateau of 248 μg/g in the young adult, where it remained into old age. The polyunsaturated fatty acid composition of the testis also changed markedly. Docosahexaenoic acid (22:6 n-3) increased from 5.1% of total fatty acids in infants and juveniles to 18.1% in postpubertal young adults. Although some n-6 fatty acids, arachidonic (20:4 n-6) and linoleic (18:2 n-6), decreased from 16.0% and 10.0% in prepubertal juveniles, respectively, to 7.1% and 3.3% in young adults; dihomogamma-linolenic acid (20:3 n-6), the precursor of 1 series PGs, increased greatly from 1.8% to 10.3%. Similar changes occurred in both membrane and storage lipids (phospholipids and triglycerides), respectively. After puberty, the testicular fatty acid pattern remained stable into old age. Our data demonstrated that puberty is accompanied by substantial changes in the lipid composition of the primate testis. These changes suggest that desmosterol and both n-3 and n-6 polyunsaturated fatty acids may have important roles in sexual maturation.

Determination of Fatty Acid Composition, Cholesterols, Triglyceride and Vitamin Contents of Some Selected Fishes from Assam, India

2020 ◽  
Vol 16 (2) ◽  
pp. 213-219
Author(s):  
Arjina Parbin Sarkar ◽  
Sanjay Basumatary ◽  
Santanu Sarma ◽  
Sandeep Das
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Docosahexaenoic Acid ◽  
Polyunsaturated Fatty Acids ◽  
Eicosapentaenoic Acid ◽  
Acid Composition ◽  
Fish Species ◽  
The Body ◽  
Lipid Components

Background: Fishes are good sources of the fatty acids such as ω-3 and ω-6 polyunsaturated fatty acids, and fat-soluble vitamins for human consumption which play vital roles for various biological processes in the body and help in the proper growth and prevention of diseases. Objective: The objective of the present study was to determine the fatty acid composition, cholesterols, triglyceride and vitamin contents of some selected fishes from Hel river, Assam, India. Methods: Fatty acid composition of fish species was examined using gas chromatography-mass spectrometry, lipid components were determined following the reported methods and vitamins A and D contents were investigated by reversed-phase high-performance liquid chromatography. Results: Fatty acid compositions varied from 51.20-89.47% of saturated fatty acids, 0.27-19.68% of monounsaturated fatty acids and 1.75-30.76% of polyunsaturated fatty acids. Eicosapentaenoic acid and docosahexaenoic acid ranged from 0.54-22.30% and 1.26-18.85%, respectively. The fish species showed varying amounts of lipid components. The vitamins A and D were found in the range of 15.85-1287.0 μg/100 g and 45.0-677.24 μg/100 g, respectively. Conclusion: The fish species of this study are found rich in ω-3 polyunsaturated fatty acids such as eicosapentaenoic acid and docosahexaenoic acid along with noticeable amounts of vitamins A and D. Hence, these fish species have the potentials to serve as the natural dietary supplements for ω-3 fatty acids and other nutrients.

Fatty Acids of Channel Catfish (Ictalurus punctatus): Variance Components Related to Diet, Replications Within Diets, and Variability Among Fish

1973 ◽  
Vol 30 (10) ◽  
pp. 1604-1608 ◽  
Author(s):  
R. E. Worthington ◽  
R. T. Lovell
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Total Lipid ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Variance Components ◽  
Total Variance ◽  
Components Of Variance

Channel catfish (Ictalurus punctatus) grown on six experimental diets were analyzed for fatty acid composition of total lipid. Estimates of components of variance showed that natural variability in fatty acid composition among fish due to genetic and/or other factors accounted for 5.5% of total variance. Variance associated with diet, replication, and error accounted for 92.8, 0.7, and 1.0% of total variance, respectively.

scholarly journals FAT SOLUBLE VITAMINS AND FATTY ACIDS COMPOSITION OF BLACK SEA CYSTOSEIRA BARBATA

2013 ◽  
Vol 1 ◽  
pp. 362-367 ◽  
Author(s):  
Veselina Panayotova ◽  
Mona Stancheva
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Black Sea ◽  
Total Lipid ◽  
Fatty Acids Composition ◽  
Cystoseira Barbata ◽  
Fat Soluble Vitamins ◽  
Β Carotene

Brown alga Cystoseira barbata is the most widely distributed seaweed in the Black Sea. There is limited information about fat soluble vitamins content and fatty acids composition of this specie from Bulgarian Black Sea coast. The aim of this study was to determine fat soluble vitamins, pigments, total lipid and fatty acid composition of Cystoseira barbata. Fat soluble vitamins (vitamin E and D), pigments (β-carotene and astaxanthin) and total cholesterol were analyzed simultaneously using HPLC/UV/FL system equipped with RP analytical column. Sample preparation procedure includes alkaline saponification, followed by liquid-liquid extraction. Brown seaweed Cystoseira barbata contained high amounts of α-tocopherol and β-carotene. Lipids were extracted by following the method of Bligh and Dyer. The residual lipid fraction was methylated using base-catalyzed transmethylation with methanolic potassium hydroxide. Fatty acid composition was analyzed by GC/MS. Cystoseira barbata was rich in linoleic (C18:2n6) and eicosopentaenoic acid (C20:5n3) although total lipid content was generally low. High levels of α-tocopherol correlate with high levels of polyunsaturated fatty acids. As an antioxidant α-tocopherol preserves tissue PUFA from oxidation.

Total lipid and fatty acid compositions of Lertha sheppardi (Neuroptera: Nemopteridae) during its main life stages

Biologia ◽  
2007 ◽  
Vol 62 (6) ◽  
Author(s):  
Ozlem Cakmak ◽  
Mehmet Bashan ◽  
Ali Satar
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Total Lipid ◽  
Developmental Stages ◽  
Lipid Level ◽  
Gas Chromatography Mass Spectrometry ◽  
Fatty Acid Compositions

AbstractTotal lipid and the fatty acid compositions of phospholipid and triacylglycerol fractions, prepared from eggs, 3rd instars of larvae, pupae, male and female adults of Lertha sheppardi, were analyzed by gas chromatography and gas chromatography-mass spectrometry. The effect of diet (adults’ nutrition) on fatty acid composition of L. sheppardi adults was also investigated. Total lipid of L. sheppardi considerably increased in adults compared with immature stages. There was a significant decrease in total lipid level in larval stage in contrast with egg stage. Qualitative analysis revealed the presence of 14 fatty acids during all stages. The major components were C16 and C18 saturated and unsaturated components which are ubiquitous to most animal species. In addition to these components, one odd-chain (C17:0) and prostaglandin precursor fatty acids were found. The fatty acid profiles of phospholipids and triacylglycerols were substantially different. In phospholipid fraction, monounsaturated fatty acids were the major proportion of fatty acids in both sex of adults and pupae, whereas polyunsaturated fatty acids were the most dominant fatty acids in eggs and 3rd instars. Results of triacylglycerol fraction revealed that fatty acid composition of eggs had higher level of C16:1, C18:0 and C18:3n-3 content than that of 3rd instars and pupae, which suggests accumulation of energetic and structural reserve materials during embryonic development. At more advanced developmental stages, mainly in adult females, the amount of C16:1 increased once again, which may be related to the need for accumulation of sufficient energy and of carbon reservoir in the developing new vitellum. Percentages of C18:1 were significantly high in adult stages compared to other stages. These findings indicate that the accumulation and consumption of fatty acids fluctuate through different development stages. Diet did not effect the fatty acid composition of L. sheppardi adults.

scholarly journals Extract of oats as a modulator of fatty acid composition of geese tissues in the conditions of physiological stress

Biologija ◽  
2020 ◽  
Vol 66 (1) ◽  
Author(s):  
Olena Danchenko ◽  
Lubov Zdorovtseva ◽  
Oleg Vishchur ◽  
Оleksandr Koshelev ◽  
Tatiana Halko ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Unsaturated Fatty Acids ◽  
Physiological Stress ◽  
Live Weight ◽  
Selective Inhibition ◽  
Antioxidant Supplements ◽  
Liver Tissues

Feeding natural antioxidant supplements to animals and birds has multiple advantages over traditional synthetic vitamins of the antioxidant group. This study investigated the effect of the Avena satíva extract on the antioxidant status and fatty acid composition of liver tissues, the brain, and skeletal muscles of geese, live weight dynamics, and pterylographic parameters during physiological stress of formation of contour and juvenile feathers. It is confirmed that adding oat extract to the geese diet during physiological stress increases tissue antioxidant activity. It was established that during the formation of contour feathers (day 28), the voltage of the antioxidant system is significantly weakened by the action of the extract due to selective inhibition of the synthesis of unsaturated fatty acids, in particular oleic. The synthesis of palmitic and stearic acids is activated. The oat extract caused the most remarkable changes in liver tissues. The subsequent period of formation of juvenile feathers (49 days) is characterized by equalization of the composition of fatty acids in the control and experimental groups. At the end of the experiment, the mass of the geese of the experimental group increased by 17.9% and their pterylographic parameters improved.

Diet-induced changes in fatty acid composition of herring larvae reared in enclosed ecosystems

1983 ◽  
Vol 63 (3) ◽  
pp. 575-584 ◽  
Author(s):  
R. R. Gatten ◽  
J. R. Sargent ◽  
J. C. Gamble
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Acid Composition ◽  
Total Lipid ◽  
Sea Water ◽  
Natural Populations ◽  
Induced Changes

Fertilized herring eggs were hatched in large sea water enclosures containing natural populations of phytoplankton and Zooplankton and the developing fish sampled at intervals for a period of 90 days to determine the levels and composition of their depot triacylglycerols. The percentage of triacylglycerols in total lipid declined from hatching to about 40 days post-hatch and then increased markedly during the remaining 50 days. During the first 30 days from hatching the acyl groups of the triacylglycerols were dominated by polyunsaturated fatty acids, especially 18:4 (n−3), 20:5 (n−3) and 22:6 (n−3), characteristic of a predominantly phytoplanktonic diet. For the remainder of the 90-day experiment the percentages of polyunsaturated fatty acids decreased, to be replaced by increasing percentages of 20:1 (n−9) and 22:1 (n−11 ) fatty acids characteristic of a predominantly zooplanktonic diet.

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