Component Fatty Acids of the Total Lipids of Some Marine Phytoplankton

1969 ◽  
Vol 49 (1) ◽  
pp. 97-116 ◽  
Author(s):  
L. Chuecas ◽  
J. P. Riley
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Distribution ◽  
Marine Phytoplankton ◽  
Component Fatty Acid ◽  
Gas Liquid Chromatography ◽  
Total Lipids ◽  
Virtual Absence ◽  
Vigorous Growth ◽  
Chloroform Methanol

A range of 27 marine phytoplankton species, representative of several of the principal classes, has been grown under similar conditions in Erd-Schreiber medium with abundant nutrients. Harvesting was carried out 20 days after inoculation while vigorous growth was proceeding. The component fatty acids of the lipids extractable with chloroform-methanol were determined by gas-liquid chromatography. In all, 40 fatty acids were determined. It is likely that the component fatty-acid distribution may be valuable for taxonomic purposes. Thus, specific fatty-acid assemblages may characterize particular Phyla or even classes. For example, the Bacillariophyceae are differentiated from the other organisms examined by the virtual absence of 18:2, 18:3 and 1814; the Cryptophyta are distinguished by their high content of 20:1. The fatty-acid arrays of species belonging to the same genus are frequently very similar, e.g. Dunaliella primolecta and D. tertiolecta.

FATTY ACID AND GLYCERIDE GLYCEROL SYNTHESIS FROM GLUCOSE DURING HIGH RATES OF GLUCOSE UPTAKE IN THE INTACT RAT

1965 ◽  
Vol 43 (4) ◽  
pp. 437-450 ◽  
Author(s):  
A. S. W. de Freitas ◽  
Florent Depocas
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Glucose Uptake ◽  
Fatty Acid Synthesis ◽  
Acid Synthesis ◽  
Component Fatty Acid ◽  
Rat Tissues ◽  
Total Lipids ◽  
Glucose Carbon ◽  
Total Glucose

The extent of incorporation of glucose carbon into total lipids and component fatty acid, neutral glyceride glycerol, and phosphoglyceride glycerol moieties of carcass, liver, and epididymal tissue has been measured in 20 rats under conditions of constant plasma glucose concentration and specific activity. Rates of fatty acid synthesis from glucose and absolute rates of synthesis have also been estimated. Each rat received 750 mg glucose per hour by continuous infusion. The incorporation of glucose carbon into carcass, liver, and epididymal fat was, respectively, 6.2, 0.75, and 0.06% of the total glucose carbon taken up by the rat tissues. Fifty percent of the C14 found in total lipids of carcass and liver was in the fatty acid fraction. Corresponding glyceride glycerol moieties contained approximately 40% of the total activity. The low level of incorporation of glucose carbon into fatty acids and glyceride glycerol indicates that lipogenesis from glucose can only account for a small proportion of the total glucose taken up by the tissues, even at high rates of glucose uptake. Rates of synthesis from glucose of carcass and liver fatty acids were estimated as 1.5 and 0.11 mmoles fatty acid per tissue per day respectively, with corresponding half-lives of 57 and 7.6 days. Absolute rates of fatty acid synthesis were estimated as 2.6 and 0.55 mmoles fatty acid per day for carcass and liver tissue respectively, with corresponding half-lives of 34 and 4.6 days.

Distribution of Fatty Acids in Cod Flesh Lipids

1968 ◽  
Vol 25 (10) ◽  
pp. 2083-2090 ◽  
Author(s):  
R. F. Addison ◽  
R. G. Ackman ◽  
J. Hingley
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Liver Lipid ◽  
Fatty Acid Distribution ◽  
Gas Liquid Chromatography ◽  
Sterol Esters ◽  
Silicic Acid Chromatography ◽  
Lipid Fractions

Cod flesh lipids were separated by silicic acid chromatography into eight fractions, and the fatty acid distribution in five of these was examined by gas–liquid chromatography (GLC). As compared with the fatty acid composition of total flesh lipids, sterol esters contained less 16:0 but more 20:5ω3; ethanolamine phosphatides contained less 16:0, less 20:5ω3, but more 22:6ω3; serine phosphatides contained less 16:0 and less 20:5ω3 but more 18:0; and choline phosphatides had a fatty acid composition roughly similar to that of total flesh lipid but containing slightly more 16:0 and 20:5ω3 and less 22:6ω3. In fatty acid composition, the triglycerides more closely resembled liver lipid than any of the flesh lipid fractions.

Fatty Acid Composition of Nephtys incisa and Yoldia limatula

1973 ◽  
Vol 30 (2) ◽  
pp. 181-185 ◽  
Author(s):  
John W. Farrington ◽  
James G. Quinn ◽  
Wayne R. Davis
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Rhode Island ◽  
Acid Composition ◽  
Fatty Acid Distribution ◽  
Narragansett Bay ◽  
Total Fatty Acids ◽  
Polluted Station

Samples of the infaunal invertebrates Nephtys incisa and Yoldia limatula from Narragansett Bay, Rhode Island, have been analyzed for their fatty acid distribution. Based on total fatty acids, Yoldia contains 9–16% of an acid tentatively identified as 22:2. The ratios of 18:1/18:0 and 18:1/20:1 fatty acids of Nephtys from a polluted station in the bay are lower than the corresponding ratios for animals from relatively clean areas.

PSVI-21 Fatty acid composition of blood lipids in lambs of different genotypes in ontogeny

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 232-233
Author(s):  
Ekaterina Karpova ◽  
Ludmila Chizhova ◽  
Eugenia Surzhikova
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Growth And Development ◽  
Blood Lipids ◽  
Early Period ◽  
Gas Liquid Chromatography ◽  
Special Role ◽  
Arachidonic Acids

Abstract The early period of postnatal ontogeny of sheep is characterized by a variety of metabolic processes that result in the formation and consolidation of a certain type of metabolism. A special role is played by lipids, which together with proteins and carbohydrates constitute the bulk of organic compounds, cells and the organism as a whole. The purpose of this research was to study the polymorphism of CAST and GH genes as well as its association with the fatty acid composition of blood plasma lipids in lambs. The content of fatty acids was determined by gas-liquid chromatography in the form of methyl esters. From the data obtained, it follows that in all studied ontogeny periods the peripheral blood of sheep with CASTNN and CASTMM genotypes had a higher concentration of fatty acids such as palmitic, stearic, linoleic, and arachidonic acids. The content is as follows: 27.58, 45.40, 3.16, 0.28% vs. 26.21, 45.31, 3.62, 0.18% at the age of 2 months; 25.07, 43.25, 6.05, 1.74% vs. 23.24, 38.76, 6.49, 1.32% at the age of 4 months; 20.64, 22.26, 14.17, 3.38% vs. 17.64, 19.91, 15.07, 2.46% at the age of 8 months (P ˂ 0.05), (P ˂ 0.01). Studies of blood lipid composition of GHBBand GHAA genotype carriers showed that palmitic, stearic, linoleic, and arachidonic acids were dominant: 27.95, 27.96, 19.04% vs. 26.08, 23.88, 17.56% at the age of 2 months, 46.87, 39.87, 22.37% vs. 3.24, 6.87, 15.56% at the age of 4 months; 0.45, 1.68, 3.81% vs. 0.29, 1.29, 3.19% at the age of 8 months (P ˂ 0.05), (P ˂ 0.01). Thus, this study emphasizes that there is a close relationship between the ratio of fatty acids in total blood lipids in lambs and the intensity of growth and development, ensuring and controlling the direction of biochemical processes in the growth and development of young sheep.

scholarly journals Observations on the nature and origin of lipids in the small intestine of the sheep

1968 ◽  
Vol 22 (2) ◽  
pp. 237-246 ◽  
Author(s):  
Aileen M. Lennox ◽  
A. K. Lough ◽  
G. A. Garton
Keyword(s):  
Fatty Acids ◽  
Small Intestine ◽  
Fatty Acid ◽  
Bile Acids ◽  
Neutral Lipids ◽  
Intestinal Lumen ◽  
Total Lipids ◽  
Total Fatty Acids ◽  
Proportional Contribution ◽  
Conjugated Bile Acids

1. Total lipids were extracted from digesta obtained from the rumen, abomasum and upper small intestine (jejunum) of each of four slaughtered sheep. The lipids were fractionated into unesterified fatty acids, neutral lipids and phospholipids and the proportional contribution of each fraction to the total fatty acids was determined.2. The contribution made by phospholipids to the total fatty acids in the digesta showed a marked increase in the samples from the small intestine compared with those from the rumen and abomasum. This increase was apparently due to the presence of biliary phospholipids.3. Total lipids and conjugated bile acids were extracted from sheep bile, the lipids were fractionated and their fatty-acid composition was determined. Phospholipids predominated and these consisted mainly of phosphatidylcholine, together with some lysophosphatidylcholine.4. Both phospholipids contained significant amounts of unsaturated C18 components which could account, at least in part, for the previously reported increament to the proportion of these acids in the digesta when it enters the upper jejunum.5. The overall fatty acid compositions of the two biliary phospholipids were very similar and, in common with other naturally occurring phosphatidylcholines, the fatty acids present in position 2 of the phosphatidylcholine of bile were found to consist almost entirely of unsaturated components.6. Total lipids and conjugated bile acids were extracted from samples of digesta obtained from three sheep with cannulas in different positions in the jejunum. Analysis of the lipids indicated that biliary phospholipids, in particular phosphatidylcholine, underwent progressive hydrolysis in the intestinal lumen.7. The distribution of conjugated bile acids, unesterified fatty acids and phospholipids between the solid (particulate) and liquid (micellar) phases of the intestinal digesta was determined. These chyme constituents were, for the most part, associated with the particulate matter and thus, at any given time, it appears that only a small fraction of the total fatty acids is available for absorption in micellar form. It is suggested that the micellar solubilization of fatty acids may be facilitated by the presence of lysophosphatidylcholine.

scholarly journals Effect of gamma irradiation on fatty acid composition of total lipids in rabbit skin

2014 ◽  
Vol 68 (3) ◽  
pp. 34-36
Author(s):  
S. Kostyuk ◽  
A. Busenko
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Gamma Radiation ◽  
Gamma Irradiation ◽  
Acid Composition ◽  
Total Lipids ◽  
Rabbit Skin

It is found that gamma radiation leads to a significant decrease in the skin of rabbits content of these fatty acids, as meristinіс, pantadekanovaya, palmitic, palmitoleic, linoleic, arachidonic, and at the end issledvany, ie 76 Tide day, the concentration of fatty acids increased, and meristinіс palmitoleic and close to the physiological norm.

scholarly journals Study on the Profile of Fatty Acids of Broiler Chicken Raised and Slaughtered in Industrial System

2019 ◽  
Vol 70 (11) ◽  
pp. 4089-4094
Author(s):  
Marius Mihai Ciobanu ◽  
Paul Corneliu Boisteanu ◽  
Daniel Simeanu ◽  
Alina Narcisa Postolache ◽  
Roxana Lazar ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Broiler Chicken ◽  
Saturated Fatty Acids ◽  
Monounsaturated Fatty Acids ◽  
Industrial System ◽  
Nutritional Indices ◽  
Total Lipids ◽  
Different Levels

Fatty acid profile and the related nutritional indices of the breast, thigh and drumstick muscles were studied at three farms, suppliers of ROSS 308 line of broilers, slaughtered at the age of 42 days. The proximate chemical composition of the commercial slaughter cuts revealed contents between 16.26�22.78% for proteins and 1.80�7.45% for total lipids, the breast having the highest protein and ash content and lowest values for fat and moisture. The obtained values were mainly affected by region (P[0.001). Meat fatty acid profile was affected (P[0.001) by commercial slaughter regions (CSR) and by the interactions between CSR and supplier farms (Farm A, B, and C) at different levels. The obvious findings highlighted that Farm B supplied broilers with a delivered higher content of beneficial fatty acids (LA, LNA, AA, EPA, and DHA) in breasts and drumstick, while for thigh, Farm C had the best results. The content of total saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (MUFAs) had the highest level in the thigh (P[0.001).

STEROL AND FATTY ACID COMPONENTS OF MYCELIUM OF FUSARIUM OXYSPORUM

1967 ◽  
Vol 13 (10) ◽  
pp. 1351-1355 ◽  
Author(s):  
A. N. Starratt ◽  
C. Madhosingh
Keyword(s):  
Fatty Acids ◽  
Liquid Chromatography ◽  
Fatty Acid ◽  
Fusarium Oxysporum ◽  
Culture Medium ◽  
Chloroform Extract ◽  
Gas Liquid Chromatography ◽  
Ergosterol Peroxide ◽  
Oleic And Linoleic Acids

A chloroform extract of the mycelium of Fusarium oxysporum Schl. em. Sny. et Hans, was analyzed for sterols; three major components were identified as ergosterol, ergosterol peroxide, and cerevisterol. The ratio of ergosterol to ergosterol peroxide formed was variable. Palmitic, stearic, oleic, and linoleic acids were identified by gas–liquid chromatography as the principal fatty acids of this organism.Fusaric acid, a phytotoxin previously obtained by other investigators from a number of forms of F. oxysporum, was isolated from the culture medium.

scholarly journals Studies on Fatty Acid Composition and Proximate Analyses of Anethum Sowa L. (Dill) Seed

1970 ◽  
Vol 42 (4) ◽  
pp. 455-464 ◽  
Author(s):  
Md Moshfekus Saleh-E-In ◽  
Sudhangshu Kumar Roy
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Acid Composition ◽  
Gas Liquid Chromatography ◽  
Good Source ◽  
Anethum Sowa ◽  
Proximate Analyses

Anethum sowa L. (Dill) seeds were investigated to determine the fatty acid composition and proximate analyses. The seeds contain 9.36 % fatty oil. The saturated and unsaturated fatty acids contributed 6.22% and 93.78% respectively of the oil. The per cent composition of the extracted oil was identified by Gas Liquid Chromatography (GLC). Among the six fatty acids identified from this study oleic acid contributed the highest proportion (87.10%), where as, linolenic, palmitic, stearic, behenic and arachidic all together contributed the rest (12.90%). Proximate analyses showed that A. sowa. seeds are good source of dietary fibre. Overall Dill seeds oil can be considered as a good source of oleic acid. Key words: Anethum sowa, dill seed oil, fatty acid composition, oleic acid, linolenic acid, Gas liquid chromatography. Bangladesh J. Sci. Ind. Res. 42(4), 455-464, 2007

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