scholarly journals Fatty Acid Composition of Three Marine Fishes of the Bay of Bengal

1970 ◽  
Vol 41 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Habibur R Bhuiyan ◽  
KK Nath ◽  
P Seal ◽  
Mir Esharul Hossain
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Essential Fatty Acid ◽  
Acid Composition ◽  
Polyunsaturated Fatty Acid ◽  
Bay Of Bengal ◽  
Fatty Acid Content ◽  
Marine Fishes ◽  
Gas Liquid Chromatography ◽  
Polyunsaturated Fatty Acid Content

Oil samples collected from three fishes namely Sting Ray (Dasyatis uarrnak), Anchovy (Setipinna taty), and Eel (Congresox talabonoides) from the Bay of Bengal were analyzed to determine their fatty acid composition with the aid of Gas Liquid Chromatography (GLC). The saturated fatty acid contents were 52.95, 45.28 and 52.29 %; and the unsaturated fatty acid contents were 43.97, 54.72 and 33.39 % in D. uarnak, S. taty and C. talabonoides respectively. The highest polyunsaturated fatty acid content was found in S. taty (13.65 %) and the lowest was in D. uarnak (8.06 %). The ψ-3 fatty acid contents were 4.58, 3.65 and 9.91 % and the ψ-6 fatty acid contents were 3.48, 10.00 and 5.50 % in D. uarnak. S. taty and C. talabonoides respectively. Two essential fatty acid linoleic acid (4.12 %) and arachidonic acid (5.32 %) contents were found higher in S. taty whereas another essential fatty acid linolenic acid (8.98 %) found higher in C. talabonoides. Another important polyunsaturated fatty acid eicosapentaenoic acid (2.12%) found higher in D. uarnak. Bangladesh J. Sci. Ind. Res. 41(1-2), 47-54, 2006

scholarly journals Production Performance of Moina macrocopa (Straus 1820) (Crustacea, Cladocera) Cultured in Different Salinities: The Effect on Growth, Survival, Reproduction, and Fatty Acid Composition of the Neonates

Diversity ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 105
Author(s):  
Amirah Yuslan ◽  
Sharifah Najuwa ◽  
Atsushi Hagiwara ◽  
Mazlan A. Ghaffar ◽  
Hidayu Suhaimi ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Acid Content ◽  
Fatty Acid Content ◽  
Production Performance ◽  
Reproduction Rate ◽  
Moina Macrocopa ◽  
Polyunsaturated Fatty Acid Content ◽  
Survival And Reproduction

Salinity is a known factor in shaping population dynamics and community structure through direct and indirect effects on aquatic ecosystems. Salinity changes further influence food webs through competition and predation. The responses of Moina macrocopa (Cladocera) collected from Setiu Wetland lagoon (Terengganu) was evaluated through manipulative laboratory experiments to understand the ability of M. macrocopa to tolerate high salinity stress. Specifically, the fatty acid composition, growth, survival, and reproduction of this cladocerans species was examined. Sodium chloride (NaCl) as used in the treatments water with the concentration 0, 4, 6, 8, 12, and 15 salinity. Fatty acid levels were determined using Gas Chromatography and Mass Spectrophotometry (GC-MS). The results indicated that optimal conditions produced the highest fatty acid content, especially the polyunsaturated fatty acid content, such as EPA (eicosapentaenoic acid), ALA (alpha-linoleic acid), ARA (arachidonic acid), and DHA (docosahexaenoic acid). Furthermore, M. macrocopa survival was best at salinity 0, with a percentage of 98%, whereas the opposite occurred at salinity 15, with approximately 20% of viable animals surviving. Besides, M. macrocopa also showed the highest reproduction rate at salinity 0 (e.g., average initial age of reproduction, 4.33 ± 0.58 days) compared with other salinities level. Interestingly, the difference in growth at different salinities was not evident, an unusual finding when considering adverse effects such as osmoregulation pressure on the organism. Based on the results, we conclude that M. macrocopa can only tolerate salinity below salinity 8 and cannot withstand stressful environmental conditions associated with salinities above 8.

scholarly journals The Fatty Acid Composition of the Ethanolamine and Choline Phosphoglycerides of Ovine and Porcine Testes

1974 ◽  
Vol 27 (6) ◽  
pp. 629 ◽  
Author(s):  
AR Neill
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Fatty Acid Content ◽  
Docosapentaenoic Acid ◽  
Large White ◽  
Noticeable Increase ◽  
Choline Phosphoglycerides ◽  
Polyunsaturated Fatty Acid Content ◽  
Ethanolamine Phosphoglycerides

The fatty acid composition of the ethanolamine and choline phosphoglycerides was examined in the testes of Merino sheep aged 2� 5 years and lambs aged 2 weeks, and Large White crossbred pigs aged 3 years and young pigs aged 5 months. Only in the case of the choline phosphoglycerides was there a noticeable increase in the polyunsaturated fatty acid content with maturation, but the ethanolamine phosphoglycerides contained higher levels of polyunsaturated fatty acids throughout. Sheep testes were characterized by the absence of 4,7,1O,13,16-docosapentaenoic acid, but contained high levels of 4,7,1O,13,16,19-docosahexaenoic acid, particularly in the ethanolamine phosphoglycerides. This latter acid was also evident in the pig testes, but derivatives of linoleic acid, particularly arachidonic and 4,7,10,1 3, I 6-docosapentaenoic acids, were dominant.

INFLUENCE OF HERBICIDE MIXTURES ON CORN OIL QUANTITY AND COMPOSITION

1974 ◽  
Vol 54 (3) ◽  
pp. 471-473 ◽  
Author(s):  
R. E. WILKINSON ◽  
W. S. HARDCASTLE
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Zea Mays L ◽  
Corn Oil ◽  
Fatty Acid Content ◽  
Gas Liquid Chromatography ◽  
Total Fatty Acid Content ◽  
Total Fatty Acids ◽  
Herbicide Mixtures

Influence of tank mixtures of commercially available, recommended herbicides on the "oil content" (actually, the total fatty acid content) and the fatty acid composition for the subsequent corn (Zea mays L.) crop was measured by gas-liquid chromatography. Changes in total fatty acids and in fatty acid composition were caused by atrazine + cyanazine, atrazine + alachlor, atrazine + prometryne, atrazine + linuron, and alachlor + cyanazine. DCPA + 2,4-D and alachlor + linuron did not cause any changes in the fatty acid composition.

Cellular fatty acids of nonpathogenic Neisseria

1971 ◽  
Vol 17 (12) ◽  
pp. 1491-1502 ◽  
Author(s):  
Mary Ann Lambert ◽  
D. G. Hollis ◽  
C. W. Moss ◽  
R. E. Weaver ◽  
M. L. Thomas
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Fatty Acid Content ◽  
Decanoic Acid ◽  
Homogeneous Group ◽  
Gas Liquid Chromatography ◽  
General Group ◽  
Neisseria Species

The cellular fatty acid composition of 33 strains representing 15 species of nonpathogenic Neisseria was examined by gas–liquid chromatography. Each isolate was characterized by standard biochemical and cultural methods. Media composition influenced both the qualitative and quantitative fatty acid content of some strains examined. However, on the basis of their fatty acid composition, the species formed the same general groups regardless of the media used. N. flavescens, N. canis, N. subflava, N. flava, N. sicca, N. perflava. N. cuniculi, N. mucosa, and N. cinerea formed one fairly homogeneous group with similar fatty acid composition. Palmitic, a monoenoic 16-carbon, a monoenoic 18-carbon, β-hydroxylauric, lauric, and myristic acids were the major fatty acids present and constituted 85–90% of the total fatty acids found. N. lactamicus grown in trypticase soy broth (TSB) could be included with this general group, but it differed from all other species when grown on plates of Difco GC medium base with 1% defined supplement (GCBDS). N. catarrhalis, N. caviae, and N. ovis formed a second homogeneous group which was characterized by the presence of decanoic acid in addition to the fatty acids found in the other species. The members of this second group were further characterized after growth on GCBDS plates by the presence of large amounts of monoenoic 17-carbon acid. N. denitrificans and N. haemolysans lacked β-hydroxylauric acid, a fatty acid which has been found in relatively large amounts in over 100 isolates of various Neisseria species examined in this laboratory.

scholarly journals Muscle and Subcutaneous Fatty Acid Composition and the Evaluation of Ageing Time on Meat Quality Parameters of Hispano-Bretón Horse Breed

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1421
Author(s):  
Lorea R. Beldarrain ◽  
Lara Morán ◽  
Miguel Ángel Sentandreu ◽  
Kizkitza Insausti ◽  
Luis Javier R. Barron ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Meat Quality ◽  
Acid Composition ◽  
Ageing Time ◽  
Block Design ◽  
Fatty Acid Content ◽  
Quality Parameters ◽  
Polyunsaturated Fatty Acid Content ◽  
Randomized Block Design

A full-randomized block design was used for the study of the FA composition and meat quality parameters, considering ageing time as a split-plot factor. Chemical and fatty acid composition of steaks (longissimus thoracis and lumborum muscle) from 15 month old semiextensively reared Hispano-Bretón horses were characterized (day 0), and the effect of vacuum ageing (0, 7, 14 and 21 days) on several meat quality parameters (pH, instrumental color and texture and cook loss) was determined. The average fat content of horse loin was 3.31%, and the n-3 polyunsaturated fatty acid content, although higher than in ruminant meats, suggested that the finishing on a high-grain diet limited muscle n-3 accumulation. Results revealed that ageing affected all meat quality measurements; color started to turn brownish at 14 days of ageing, with a decrease in redness but not in yellowness. Tenderness improved during the first two weeks, and the Warner-Bratzler shear force scores showed that meat aged for 7 days could be considered as ‘intermediate tender’. Under the present study conditions, an ageing period between 7 and 14 days is recommended for an optimum horse meat quality.

scholarly journals Hepatic Deletion of Mboat7 (Lpiat1) Causes Activation of SREBP-1c and Fatty Liver

2020 ◽  
pp. jlr.RA120000856 ◽  
Author(s):  
Mingfeng Xia ◽  
Preethi Chandrasekaran ◽  
Shunxing Rong ◽  
Xiaorong Fu ◽  
Matthew A. Mitsche
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Fatty Liver ◽  
Acid Composition ◽  
Fatty Acid Biosynthesis ◽  
De Novo ◽  
Fatty Acid Content ◽  
De Novo Lipogenesis ◽  
Knock Out ◽  
Polyunsaturated Fatty Acid Content

Genetic variants that increase the risk of fatty liver disease (FLD) and cirrhosis have recently been identified in the proximity of membrane bound O-acyltransferase domain-containing 7 (MBOAT7).  To elucidate the link between these variants and FLD we characterized Mboat7 liver-specific knock-out mice (Mboat7-LSKO).  Chow-fed Mboat7-LSKO mice developed fatty livers and associated liver injury.  Lipidomic analysis of liver using mass spectrometry revealed a pronounced reduction in 20-carbon polyunsaturated fatty acid content in phosphatidylinositols (PIs), but not in other phospholipids. The change in fatty acid composition of PIs in these mice was associated with a marked increase in de novo lipogenesis due to activation of SREBP-1c, a transcription factor that coordinates the activation of genes encoding enzymes in the fatty acid biosynthesis pathway. Hepatic removal of both SREBP cleavage activating protein (Scap) and Mboat7 normalized hepatic triglycerides relative to Scap only hepatic knock-out showing increased SREBP-1c processing is required for Mboat7 induced steatosis.  This study reveals a clear relationship between PI fatty acid composition and regulation of hepatic fat synthesis and delineates the mechanism by which mutations in MBOAT7 cause hepatic steatosis.

Sign in / Sign up

Export Citation Format

Share Document