Observations on the destruction of cyclopropene fatty acids of cottonseed oil on exposure to visible light

1969 ◽  
Vol 46 (11) ◽  
pp. 609-610 ◽  
Author(s):  
Y. Sita Rama Sastry ◽  
Gollamudi Lakshminarayana
Keyword(s):  
Fatty Acids ◽  
Visible Light ◽  
Cottonseed Oil ◽  
Cyclopropene Fatty Acids

scholarly journals Mass spectrometry of derivatives of cyclopropene fatty acids

1968 ◽  
Vol 9 (2) ◽  
pp. 270-275
Author(s):  
N. Kim Hooper ◽  
John H. Law
Keyword(s):  
Mass Spectrometry ◽  
Fatty Acids ◽  
Cyclopropene Fatty Acids ◽  
Derivatives Of

scholarly journals Hydroxy- and Aminoethyl Imidazolines of Cottonseed Oil Fatty Acids as Additives for Diesel Fuels

2015 ◽  
Vol 04 (02) ◽  
pp. 33-39
Author(s):  
Vaqif Maherram Abbasov ◽  
Tarana Aslan Mammadova ◽  
Khayam Rahim Veliyev ◽  
Khayala Hamlet Kasamanli
Keyword(s):  
Fatty Acids ◽  
Cottonseed Oil ◽  
Diesel Fuels

Further studies on the effects of dietary cottonseed oil on milk-fat secretion in the cow

1968 ◽  
Vol 35 (3) ◽  
pp. 343-352 ◽  
Author(s):  
W. Steele ◽  
J. H. Moore
Keyword(s):  
Fatty Acids ◽  
Milk Fat ◽  
Volatile Fatty Acids ◽  
Octadecenoic Acid ◽  
Cottonseed Oil ◽  
Rumen Fermentation ◽  
Total Volatile ◽  
Feeding Experiments ◽  
Concentrate Mixture ◽  
Low Levels

SummaryThe effects of the isocaloric replacement of part of the dietary concentrate mixture by cottonseed oil on the yield and composition of the milk fat and on the pattern of rumen fermentation was investigated in 2 feeding experiments with a total of 8 cows in mid-lactation. The concentrate mixtures were given with high- or low-roughage diets that supplied 9·1 or 1·8 kg of hay/day.In expt 1 the yield of milk fat was not altered by the addition of 10% cottonseed oil to the concentrate mixtures given either with the high- or with the low-levels of dietary roughage. On the low-roughage treatment, dietary cottonseed oil increased milk yield but reduced the fat content of the milk. The change from the high- to the low-roughage diets containing no cottonseed oil resulted in reductions in the yield and percentage of fat in the milk. In expt 2 the yields of milk and milk fat were similar irrespective of whether the concentrate mixture contained 5 or 10% cottonseed oil.In expt 1 the inclusion of 10% cottonseed oil in the concentrate mixture reduced the yields and percentages of the medium-chain fatty acids (12:0, 14:0 and 16:0) and increased the yields and percentages of the C18 fatty acids in the milk fat. In expt 2, when the concentrate mixture contained 5% cottonseed oil, the yields and percentages of all the fatty acids in the milk fat were similar to the values obtained when the concentrates contained 10% cottonseed oil. For any given concentrate mixture, the change from the high- to the low-roughage treatments in both expts 1 and 2 resulted in increases in the percentage of oleic acid in the milk fat. The highest concentration of trans-octadecenoic acid was observed in the milk fat of the cows when they were given the high-roughage diet with the concentrate mixture containing 10% cottonseed oil.In expt 2 the level of cottonseed oil in the concentrate mixture did not influence the pattern of rumen fermentation as measured by the concentrations of the various volatile fatty acids in the rumen liquor. However, the change from the high- to the low-roughage diets reduced the proportion of acetic and increased the proportions of propionic and n-valeric acids in the total volatile fatty acids in the rumen liquor.

Hydrogen production from organic fatty acids using carbon-doped TiO2 nanoparticles under visible light irradiation

2018 ◽  
Vol 43 (9) ◽  
pp. 4335-4346 ◽  
Author(s):  
Yang Li ◽  
Liyuan Kuang ◽  
Dequan Xiao ◽  
Appala Raju Badireddy ◽  
Maocong Hu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Hydrogen Production ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Doped Tio2 ◽  
Carbon Doped

scholarly journals The Effect of Dietary Cyclopropene Fatty Acids on the Structure of New-Laid and Stored Hens' Eggs: An Optical and Electron Microscope Study

1970 ◽  
Vol 23 (3) ◽  
pp. 657 ◽  
Author(s):  
Joan M Bain ◽  
Janice M Hall
Keyword(s):  
Fatty Acids ◽  
Electron Microscope ◽  
Low Temperature ◽  
Electron Microscope Study ◽  
Unsaturated Fatty Acids ◽  
Diffusion Processes ◽  
Sterculic Acid ◽  
Structural Differences ◽  
Cyclopropene Fatty Acids ◽  
Storage Disorders

Two storage disorders, "pink white" and "pasty yolk" are known to develop in eggs from hens with cyclopropene fatty acids (e.g. malvalic and sterculic acid) in their diet. The pink white condition is related to increased diffusion processes in the egg during storage. The pasty yolk condition is related to an increase in the proportion of saturated to unsaturated fatty acids in the yolk. The change in texture becomes evident during storage at normal temperature, but can be induced quickly in any affected egg, even when new-laid, by low temperature. The present investigations were carried out to see if the development of these defects could be related to any structural differences detectable in eggs from hens fed a cyclopropene compound.

A Simplified Halphen Procedure for Cyclopropene Fatty Acids

1972 ◽  
Vol 55 (6) ◽  
pp. 1288-1293
Author(s):  
Eugene C Coleman ◽  
David Firestone
Keyword(s):  
Fatty Acids ◽  
Quantitative Determination ◽  
Closed System ◽  
Fats And Oils ◽  
The Other ◽  
Solvent Systems ◽  
Cyclopropene Fatty Acids ◽  
Reaction Media ◽  
Qualitative Analyses

Abstract A simplified Halphen procedure was developed for the quantitative determination of cyclopropene fatty acids in fats and oils. Butanol, dimethyl sulfoxide (DMSO), and mixtures of butanol and DMSO were used as reaction media in a closed system. Higher sample absorbances were produced in butanol than in mixtures of butanol and DMSO. Butanol was superior to the other solvent systems for both quantitative and qualitative analyses. The lower limit of sensitivity for the tube-butanol system for quantitative and qualitative analyses was 18 and 15 μg cyclopropene fatty acids/g oil, respectively.

Cyclopropene fatty acids of selected seed oils from bombacaceae, malvaceae, and sterculiaceae

Lipids ◽  
1978 ◽  
Vol 13 (4) ◽  
pp. 270-273 ◽  
Author(s):  
M. B. Bohannon ◽  
R. Kleiman
Keyword(s):  
Fatty Acids ◽  
Seed Oils ◽  
Cyclopropene Fatty Acids

A model study on the mechanism of inhibition of fatty acyl desaturases by cyclopropene fatty acids

Tetrahedron ◽  
1998 ◽  
Vol 54 (34) ◽  
pp. 10187-10198 ◽  
Author(s):  
Jordi Quintana ◽  
Mireia Barrot ◽  
Gemma Fabrias ◽  
Francisco Camps
Keyword(s):  
Fatty Acids ◽  
Fatty Acyl ◽  
Model Study ◽  
Mechanism Of Inhibition ◽  
Cyclopropene Fatty Acids
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