Triacylglycerols of camellia oil: Composition and positional distribution of fatty acids

2015 ◽  
Vol 118 (8) ◽  
pp. 1254-1255 ◽  
Author(s):  
Wei Wei ◽  
Huang Cheng ◽  
Xi Cao ◽  
Xi Zhang ◽  
Fengqin Feng
Keyword(s):  
Fatty Acids ◽  
Positional Distribution ◽  
Oil Composition ◽  
Camellia Oil

scholarly journals Fatty acid positional distribution (sn-2 fatty acids) and phospholipid composition in Chinese breast milk from colostrum to mature stage

2018 ◽  
Vol 121 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Ke Wu ◽  
Runying Gao ◽  
Fang Tian ◽  
Yingyi Mao ◽  
Bei Wang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Fatty Acid Profile ◽  
Unsaturated Fatty Acids ◽  
Fatty Acid Content ◽  
Positional Distribution ◽  
Phospholipid Composition ◽  
Mature Stage ◽  
Feeding Time

AbstractThis study quantified the fatty acid profile with emphasis on the stereo-specifically numbered (sn) 2 positional distribution in TAG and the composition of main phospholipids at different lactation stages. Colostrum milk (n 70), transitional milk (n 96) and mature milk (n 82) were obtained longitudinally from healthy lactating women in Shanghai. During lactation, total fatty acid content increased, with SFA dominating in fatty acid profile. A high ratio of n-6:n-3 PUFA was observed as 11:1 over lactation due to the abundance of linoleic acid in Chinese human milk. As the main SFA, palmitic acid showed absolute sn-2 selectivity, while oleic acid, linoleic acid and α-linolenic acid, the main unsaturated fatty acids, were primarily esterified at the sn-1 and sn-3 positions. Nervonic acid and C22 PUFA including DHA were more enriched in colostrum with an sn-2 positional preference. A total of three dominant phospholipids (phosphatidylethanolamine (PE), phosphatidylcholine (PC) and sphingomyelin (SM)) were analysed in the collected samples, and each showed a decline in amount over lactation. PC was the dominant compound followed by SM and PE. With prolonged breast-feeding time, percentage of PE in total phospholipids remained constant, but PC decreased, and SM increased. Results from this study indicated a lipid profile different from Western reports and may aid the development of future infant formula more suitable for Chinese babies.

Acylglycerol structure of mustard seed oil and of cardiac lipids of rats during dietary lipidosis

1979 ◽  
Vol 57 (11) ◽  
pp. 1315-1327 ◽  
Author(s):  
J. J. Myher ◽  
A. Kuksis ◽  
S. C. Vasdev ◽  
K. J. Kako
Keyword(s):  
Fatty Acids ◽  
Seed Oil ◽  
Positional Distribution ◽  
Mustard Seed ◽  
Gradual Change ◽  
Glycerol Molecule ◽  
Caloric Requirement ◽  
Normal Rat ◽  
Rat Tissue ◽  
Long Chain

Stereospecific degradation and combined gas chromatographic – mass spectrometric (gc/ms) analysis were employed in a detailed investigation of the triacylglycerol structure of mustard seed oil and of the triacylglycerols transiently accumulating in the hearts of young rats receiving the oil in their diet. It was shown that feeding of mustard seed oil at 40% of the daily caloric requirement resulted in a deposition of cardiac triacylglycerols containing a high proportion of enantiomers of a positional distribution and molecular association of fatty acids which were closely similar to those found in the dietary oil. Complete structures were derived for a total of 88 species representing 75 to 85% of the triacylglycerols. About 90%, of the accumulated triacylglycerol contained at least one long-chain (C20–C22) monounsaturated fatty acid per molecule. The long-chain acids were confined mainly to the primary positions and preferentially to the sn-3-position of the glycerol molecule. The dietary lipidosis is, therefore, accompanied by little or no accumulation of the normal rat tissue triacylglycerols containing C16 and C18 fatty acids. It is suggested that the deposition and eventual clearance of the enantiomeric long-chain triacylglycerols in the rat heart during mustard seed oil feeding may be largely a result of a gradual change in specificity of the cardiac lipases.

Positional distribution of fatty acids in galactolipids of algae

1989 ◽  
Vol 28 (3) ◽  
pp. 805-810 ◽  
Author(s):  
Tomohito Arao ◽  
Mitsuhiro Yamada
Keyword(s):  
Fatty Acids ◽  
Positional Distribution

scholarly journals Effect of nitrogen and potassium fertilization on the production and quality of oil in Jatropha curcas L. under the dry and warm climate conditions of Colombia

2014 ◽  
Vol 32 (2) ◽  
pp. 255-265 ◽  
Author(s):  
Omar Montenegro R. ◽  
Stanislav Magnitskiy ◽  
Martha C. Henao T.
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Jatropha Curcas ◽  
Oil Content ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Fruit Production ◽  
Biodiesel Production ◽  
Oil Composition

This study was conducted to assess fruit and seed yield, oil content and oil composition of Jatropha curcas fertilized with different doses of nitrogen and potassium in Espinal (Tolima, Colombia). The yields ranged from 4,570 to 8,800 kg ha-1 of fruits and from 2,430 to 4,746 kg ha-1 of seeds. These yields showed that the fertilizer dose of 150 kg ha-1 N + 120 kg ha-1K increased fruit production by 92% and seed production by 95%, which represents an increase of about 100% in oil production, which increased from 947 to 1,900 kg ha-1. The total oil content in the seeds ranged from 38.7 to 40.1% (w/w) with a high content of the unsaturated fatty acids oleic (> 47%) and linoleic acid (> 29%). The highest content of oleic acid in the seed oil was from the unfertilized control plants and plants with an application of 100 kg ha-1 of N and 60 kg ha-1 of K, with an average of 48%. The lowest content of oleic acid was registered when a low dose of nitrogen and a high level of potassium were applied at a ratio of 1:2.4 and doses of 50 kg ha-1 N + 120 kg ha-1 K, respectively. Low contents of the saturated fatty acids palmitic (13.4%) and stearic (7.26%) were obtained, making this oil suitable for biodiesel production. The nitrogen was a more important nutrient for the production and quality of oil in J. curcas than potassium under the studied conditions of soil and climate.

scholarly journals Evaluation of nuts morphology and composition of fatty acids in certain Iranian Pistacia vera L. (Anacardiaceae) cultivars

2021 ◽  
Vol 117 (3) ◽  
pp. 1
Author(s):  
Mojdeh MAHDAVI ◽  
Fariba SHARIFNIA ◽  
Fahimeh SALIMPOUR ◽  
Akbar ESMAEILI ◽  
Mohaddeseh LARYPOOR
Keyword(s):  
Fatty Acids ◽  
Unsaturated Fatty Acids ◽  
Saturated Fatty Acids ◽  
Pistacia Vera ◽  
Oil Composition ◽  
Food Industries ◽  
Nutrient Value ◽  
Press Method ◽  
Total Oil ◽  
Palmitic Acids

<p>Fruits of various Pistachio (<em>Pistacia vera</em> L.) cultivars are widely used in food industries for its inimitable color, taste and nutrient value.<strong> </strong>We elevated fruit morphology and kernel fatty acids composition of eleven Iranian cultivars of pistachio. Oils of kernels were extracted using cold press method, and composition of the oil fatty acids in the methyl ester form was detected using gas chromatography (GC). For morphological study, nine qualitative and quantitative traits were evaluated. The quantitative ones widely differed among the studied cultivars, and ANOVA test revealed the significant variations (<em>p</em> = 0.00) for all of them. Moreover, the qualitative traits varied among the cultivars. We characterized 11 fatty acid components representing about 99.56 to 100 % of the total oil composition. The principal fatty acids for all the cultivars were: oleic, linoleic and palmitic acids, while their amounts differed among the cultivars. In this regard, unsaturated fatty acids comprised the major oil part, 87.46 to 88.89 %. Oleic acid (53.11-70.99 %) and palmitic acid (9.09 to 10.55 %) were detected as the unsaturated and saturated fatty acids in all the evaluated cultivars. The quality index of oils were determined according to oleic/ linoleic acids ratio, which highly varied among the cultivars. According to UPGMA tree and PCO plot, we divided the investigated cultivars into four chemotypes, and each of them was characterized by the certain oil composition.</p>

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