METABOLIC PATTERNS OF THE FATTY ACIDS OF PERIPLANTETA AMERICANA (L.) DURING ITS EMBRYONIC DEVELOPMENT

1966 ◽  
Vol 44 (2) ◽  
pp. 247-258 ◽  
Author(s):  
John E. Kinsella
Keyword(s):  
Fatty Acids ◽  
Life Cycle ◽  
Fatty Acid ◽  
Fatty Acid Content ◽  
Carbon Chain ◽  
Carbon Chain Length ◽  
Gas Liquid Chromatography ◽  
Total Fatty Acids ◽  
Fatty Acid Patterns ◽  
Oleic And Linoleic Acids

The fatty acid composition of the various lipid fractions of Periplanteta americana was analyzed by gas–liquid chromatography at successive stages during embryogenesis. Qualitative analysis revealed the presence of at least 30 fatty acids during all stages of the life cycle ranging in carbon chain length from C6 through C24. Palmitic, stearic, oleic, and linoleic acids composed over 95% of the total fatty acids. The percentage distribution of major fatty acids remained constant throughout the life cycle. Total fatty acid content decreased by 28% during development mainly because of the catabolism of palmitic, oleic, and linoleic acids. Fatty acid patterns suggest that partially hydrolyzed triglyceride molecules are converted to phospholipid molecules during development.

Fatty Acid Composition of Eggs during Development of the Cotton Leaf-Worm, Spodoptera littoralis Boisduval

1981 ◽  
Vol 36 (7-8) ◽  
pp. 562-563 ◽  
Author(s):  
I. Z. Boctor
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Spodoptera Littoralis ◽  
Carbon Chain ◽  
Carbon Chain Length ◽  
Cotton Leaf ◽  
Total Fatty Acids ◽  
Liquid Chromatographic Analysis ◽  
Liquid Chromatographic ◽  
Oleic And Linoleic Acids

Abstract Fatty Acids, Spodoptera littoralis, Eggs Gas-liquid chromatographic analysis of egg lipids during development of Spodoptera littoralis showed the presence of 13 fatty acids ranging in carbon chain length from caproic (C6:0) to linolenic acid (C 18:3). Palmitic, palmitoleic, stearic, oleic and linoleic acids composed over 90% of the total fatty acids. Palmitic acid was always the predominant fatty acid and oleic acid was the second most abundant.

Prediction of Fatty Acid Content in Beef Neck Lean by near Infrared Reflectance Analysis

1998 ◽  
Vol 6 (1) ◽  
pp. 229-234 ◽  
Author(s):  
William R. Windham ◽  
W.H. Morrison
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Near Infrared ◽  
Fatty Acid Content ◽  
Reference Method ◽  
Nir Spectroscopy ◽  
Coefficient Of Determination ◽  
Longissimus Dorsi ◽  
Near Infrared Reflectance ◽  
Total Fatty Acids

Near infrared (NIR) spectroscopy in the prediction of individual and total fatty acids of bovine M. Longissimus dorsi neck muscles has been studied. Beef neck lean was collected from meat processing establishments using advanced meat recovery systems and hand-deboning. Samples ( n = 302) were analysed to determine fatty acid (FA) composition and scanned from 400 to 2498 nm. Total saturated and unsaturated FA values ranged from 43.2 to 62.0% and 38.3 to 56.2%, respectively. Results of partial least squares (PLS) modeling shown reasonably accurate models were attained for total saturate content [standard error of performance ( SEP = 1.10%); coefficient of determination on the validation set ( r2 = 0.77)], palmitic ( SEP = 0.94%; r2 = 0.69), unsaturate ( SEP = 1.13%; r2 = 0.77), and oleic ( SEP = 0.97; r2 = 0.78). Prediction of other individual saturated and unsaturated FAs was less accurate with an r2 range of 0.10 to 0.53. However, the sum of individual predicted saturated and unsaturated FA was acceptable compared with the reference method ( SEP = 1.10 and 1.12%, respectively). This study shows that NIR can be used to predict accurately total fatty acids in M. Longissimus dorsi muscle.

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 SELECTIVITY OF CANDIDA RUGOSA LIPASE IMMOBILIZED ONTO LAYERED DOUBLE HYDROXIDES AS CATALYST IN SYNTHESIS OF FATTY ACID ESTERS

2016 ◽  
Vol 78 (5-6) ◽  
Author(s):  
Mohd Basyaruddin Abdul Rahman ◽  
Siti Salhah Othman ◽  
Noor Mona Md Yunus
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Chain Length ◽  
Candida Rugosa ◽  
Candida Rugosa Lipase ◽  
Carbon Chain ◽  
Fatty Acid Esters ◽  
Carbon Chain Length ◽  
Chain Lengths ◽  
Acid Esters

The enzymatic selectivity of Lipase from Candida rugosa immobilized onto a calcined layered double hydroxide (CLDHs-CRL) towards the chain-length of fatty acids and alcohols in the synthesis of fatty acid esters was investigated.  The results showed that CMAN-CRL catalyzed the esterification process with fatty acids of medium chain lengths (C10-C14) effectively while, CNAN-CRL and CZAN-CRL exhibited high percentage conversion in fatty acids with carbon chain lengths of C8-C12 and C10-C18, respectively. In the alcohol selectivity study, CMAN-CRL showed high selectivity toward alcohols with carbon chain lengths of C4, C6 and C10.  On the other hand, both CNAN-CRL and CZAN-CRL exhibited rather low selectivity towards longer carbon chain length of alcohols. 

scholarly journals Levels of polyunsaturated fatty acids in lymphocytes of rats fed on diets varying in polyunsaturated fatty acid content

1980 ◽  
Vol 43 (2) ◽  
pp. 367-373 ◽  
Author(s):  
W. M. Tsagn ◽  
J. Belin ◽  
A. D. Smith
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acid ◽  
Fatty Acid Content ◽  
Inverse Correlation ◽  
Normal Diet ◽  
Deficient Diet ◽  
Polyunsaturated Fatty Acid Content ◽  
Weanling Rats ◽  
Total Fatty Acids

1. When weanling rats were fed on a diet containing 0.1 g/kg of the diet as polyunsaturated fatty acid, it was found that after 2 weeks the level of linoleate in the lymphocyte total lipids was 56 mg/ g total fatty acids, as compared with a level of 138 mg/ g in rats on a normal diet (P < 0.005). Similar levels were obtained from rats which had been fed for up to 16 weeks on the deficient diet, but in a group killed after 28 weeks on the diet the level was found to be only 20 mg/ g total fatty acids. The arachidonate level was found to be approximately 220 mg/ g total fatty acids, regardless of whether the rats were fed on a diet deficient in linoleate for up to 16 weeks or on a normal diet. In the group of rats killed after 28 weeks on the linoleate deficient diet, however, the arachidonate level was only 60 mg/ g total fatty acids.2. Percentage values for total fatty acids are given for plasma, adipose tissue, and lymphocytes for rats on normal and experimental diets.3. Scatter diagrams of the levels of linoleate v. arachidonate in the lymphocyte total fatty acids showed no correlation between the levels of the two acids (r 0.05), but similar plots of linoleate and oleate levels showed an inverse correlation (r – 0.68).

Comparison of fatty acid composition of stable L-phase variants of Staphylococcus aureus induced by three different mechanisms

1977 ◽  
Vol 23 (10) ◽  
pp. 1478-1481 ◽  
Author(s):  
Joseph MacGee ◽  
Cheryl Glotzbecker ◽  
Chatrchai Watanakunakorn
Keyword(s):  
Fatty Acids ◽  
Staphylococcus Aureus ◽  
Fatty Acid Composition ◽  
Liquid Chromatography ◽  
Fatty Acid ◽  
Acid Composition ◽  
Gas Liquid Chromatography ◽  
Fatty Acid Patterns ◽  
Phase Variants

The total saponifiable fatty acids of three stable L-phase variants of Staphylococcus aureus induced by cycloserine, methicillin, and lysostaphin were examined by gas-liquid chromatography. Five separate preparations of each of the three variants were examined. Twenty-nine fatty acids were identified. The fatty acid patterns of the three variants were very similar.

Effect of substrate on fatty acid production in Nocardia asteroides

1970 ◽  
Vol 16 (4) ◽  
pp. 213-217 ◽  
Author(s):  
David Farshtchi ◽  
N. M. McClung
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Fatty Acid Content ◽  
Fatty Acid Pattern ◽  
Cellular Fatty Acid ◽  
Nocardia Asteroides ◽  
Gas Liquid Chromatography ◽  
Fatty Acid Production ◽  
The Media ◽  
Branched Chain

Cellular fatty acids of the six Nocardia asteroides strains grown on glucose, glucose and amino acids, glycerol, and Dubos oleic albumin complex were determined by gas–liquid chromatography. Cells grown on each medium contained saturated, unsaturated, and branched-chain fatty acids. The fatty acids consisted of normal saturated C13, C14, C15, C16, C17, and C18; monoenoic C16 and C18; branched-chain C14, C15, and 10-methyl C18. Composition of the media affected cellular fatty acid content of N. asteroides strains qualitatively and quantitatively. Five of the six strains closely resembled each other, but one strain appeared to be different. The fatty acid pattern of Nocardia may be a useful criterion in differentiation of this genus from the closely related Mycobacterium and Streptomyces, which have a different fatty acid composition.

Fatty Acids of Channel Catfish (Ictalurus punctatus)

1972 ◽  
Vol 29 (1) ◽  
pp. 113-115 ◽  
Author(s):  
R. E. Worthington ◽  
T. S. Boggess Jr. ◽  
E. K. Heaton
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Saturated Fatty Acids ◽  
Processing Plant ◽  
Gas Liquid Chromatography ◽  
Total Fatty Acids

Representative samples of channel catfish (Ictalurus punctatus Rafinesque) were obtained from five processing plants and analyzed by gas–liquid chromatography for fatty acid composition of muscle tissues. Twenty-three fatty acids were measured. The saturated fatty acids comprised 26.5%, monoenes 48.1%, dienes 13.0%, trienes 3.1%, tetraenes 3.6%, pentaenes 1.3%, and hexaenes 1.9% of total fatty acids. Fatty acid composition varied significantly (P <.01) among fish obtained from the same plant, and in addition, significant variation associated with processing plant was observed for some fatty acids.

Influence of Simazine and Atrazine on Free Fatty Acid Content in Isolated Chloroplasts

Weed Science ◽  
1973 ◽  
Vol 21 (1) ◽  
pp. 57-60 ◽  
Author(s):  
A. E. Smith ◽  
R. E. Wilkinson
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Free Fatty Acid Content ◽  
Acid Content ◽  
Spinacia Oleracea ◽  
Saturated Fatty Acids ◽  
Fatty Acid Content ◽  
Total Fatty Acids ◽  
Isolated Chloroplasts

Chloroplasts, isolated from fresh spinach (Spinacia oleracea L.) were treated with four concentrations of each 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine) or 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) to determine the influence of these herbicides on the free fatty acid content in isolated chloroplasts. The treated chloroplast solutions were sampled at 0, 5, 15, 30, 60, and 120 min following treatment. Results indicated that most herbicide treatments increased free fatty acid content in isolated chloroplasts when compared with the zero concentration treatments. The increased fatty acid content was similar for most concentrations of simazine and atrazine. Results of individual fatty acid analyses indicated that the increase in total fatty acids was a result of increases in concentration of unsaturated rather than saturated fatty acids.

Sign in / Sign up

Export Citation Format

Share Document