Feeding lactating Holstein cows a lipid source high in palmitic acid changes the fatty acid composition and thermal properties of lipids in milk and butter

2016 ◽  
Vol 32 (5) ◽  
pp. 672-680 ◽  
Author(s):  
M.B. Chamberlain ◽  
B.C. Veltri ◽  
S.J. Taylor ◽  
J.W. Pareas ◽  
R. Jimenez-Flores ◽  
...  
1973 ◽  
Vol 40 (2) ◽  
pp. 207-214 ◽  
Author(s):  
I. K. Gray

SummaryThe fatty-acid composition of 17 samples of New Zealand milk fat obtained throughout one dairy season is reported.The weight percentage of butyric (C4:0) acid was significantly correlated with that of caproic (C6:0) acid and that of caprylic (C8:0) acid. Percentages of C6:0and C8:0showed a highly significant correlation with each other and with weight percentages of capric (C10:0) and lauric (C12:0) acids.There was a highly significant negative correlation between palmitic (C16:0) and stearic (C18:0) acids and between C4:0and C16:0acids. Oleic (C18:1) acid showed significant negative correlations with C8:0, C10:0, C12:0, myristic (C14:0) and C16:0acids.


2009 ◽  
Vol 92 (10) ◽  
pp. 4865-4875 ◽  
Author(s):  
M. Carriquiry ◽  
W.J. Weber ◽  
C.R. Dahlen ◽  
G.C. Lamb ◽  
L.H. Baumgard ◽  
...  

2010 ◽  
pp. 89-92
Author(s):  
Melinda-Rita Márton ◽  
Sándor Szép ◽  
Zsolt Mándoki ◽  
Melinda Tamás ◽  
Salamon Rozália Veronika ◽  
...  

During our research we studied the fat content and fatty acid composition during the germination and sprouting periods of the most important sprouts: wheat, lentil, alfalfa, radish and sunflower seed. In this article we present our research results during this sprouting study. The concentration of the saturated fatty acids (palmitic acid, stearic acid) decreased, the concentration of the unsaturated fatty acids increased during germination, but the tendency was not so high than was published in the literature.


2014 ◽  
Vol 139 (4) ◽  
pp. 433-441 ◽  
Author(s):  
Geoffrey Meru ◽  
Cecilia McGregor

Seed oil percentage (SOP) and fatty acid composition of watermelon (Citrullus lanatus) seeds are important traits in Africa, the Middle East, and Asia where the seeds provide a significant source of nutrition and income. Oil yield from watermelon seed exceeds 50% (w/w) and is high in unsaturated fatty acids, a profile comparable to that of sunflower (Helianthus annuus) and soybean (Glycine max) oil. As a result of novel non-food uses of plant-derived oils, there is an increasing need for more sources of vegetable oil. To improve the nutritive value of watermelon seed and position watermelon as a potential oil crop, it is critical to understand the genetic factors associated with SOP and fatty acid composition. Although the fatty acid composition of watermelon seed is well documented, the underlying genetic basis has not yet been studied. Therefore, the current study aimed to elucidate the quality of watermelon seed oil and identify genomic regions and candidate genes associated with fatty acid composition. Seed from an F2 population developed from a cross between an egusi type (PI 560023), known for its high SOP, and Strain II (PI 279261) was phenotyped for palmitic acid (16:0), stearic acid (18:0), oleic acid (18:1), and linoleic acid (18:2). Significant (P < 0.05) correlations were found between palmitic and oleic acid (0.24), palmitic and linoleic acid (–0.37), stearic and linoleic acid (–0.21), and oleic and linoleic acid (–0.92). A total of eight quantitative trait loci (QTL) were associated with fatty acid composition with a QTL for oleic and linoleic acid colocalizing on chromosome (Chr) 6. Eighty genes involved in fatty biosynthesis including those modulating the ratio of saturated and unsaturated fatty acids were identified from the functionally annotated genes on the watermelon draft genome. Several fatty acid biosynthesis genes were found within and in close proximity to the QTL identified in this study. A gene (Cla013264) homolog to fatty acid elongase (FAE) was found within the 1.5-likelihood-odds (LOD) interval of the QTL for palmitic acid (R2 = 7.6%) on Chr 2, whereas Cla008157, a homolog to omega-3-fatty acid desaturase and Cla008263, a homolog to FAE, were identified within the 1.5-LOD interval of the QTL for palmitic acid (R2 = 24.7%) on Chr 3. In addition, the QTL for palmitic acid on Chr 3 was located ≈0.60 Mbp from Cla002633, a gene homolog to fatty acyl- [acyl carrier protein (ACP)] thioesterase B. A gene (Cla009335) homolog to ACP was found within the flanking markers of the QTL for oleic acid (R2 = 17.9%) and linoleic acid (R2 = 21.5%) on Chr 6, whereas Cla010780, a gene homolog to acyl-ACP desaturase was located within the QTL for stearic acid (R2 = 10.2%) on Chr 7. On Chr 8, another gene (Cla013862) homolog to acyl-ACP desaturase was found within the 1.5-LOD interval of the QTL for oleic acid (R2 = 13.5%). The genes identified in this study are possible candidates for the development of functional markers for application in marker-assisted selection for fatty acid composition in watermelon seed. To the best of our knowledge, this is the first study that aimed to elucidate genetic control of the fatty acid composition of watermelon seed.


2021 ◽  
pp. 9-12
Author(s):  
Marina Evgenievna Belyshkina ◽  
Tamara Petrovna Kobozeva

In terms of biological value and quality, soy fat meets the standard of the Food and Agriculture Organization of the United Nations and the World Health Organization. The aim of the study was to identify agro-climatic factors that affect the fatty acid composition of soybean seeds of the northern ecotype and to determine the variety that most corresponds to the group of food fat quality. Field experiments were conducted in 2017–2019 in the Ryazan region at the experimental base of the Institute of Seed Production and Agricultural Technologies-a branch of the FGBNU FNAC VIM. Varieties and forms of soybeans of the northern ecotype – Light, Mageva, Okskaya and M-52-were selected as objects of research. The results of the study. The average yield of soybean seeds for three years of research was from 1.81 to 2.57 t / ha for varieties, the fat content in the seeds was 19.4–21.5 %, the total harvest was 357–548 kg/ha. The fat of soybean seeds of varieties and forms of the northern ecotype contained 11.36–11.43 % palmitic acid and significantly less oleic acid-7.43–11.27 %. While in traditional varieties, the values of these indicators were 9.75 % and 24.80 %, respectively. In conditions of sufficient moisture (2017), the predominance of saturated palmitic acid in the fatty acid composition of seeds was observed, and in dry years (2018–2019) – unsaturated fatty acids – oleic, linoleic and linolenic, their sum was 73 % in dry years, with sufficient moisture – 67 %. Better illumination of the upper tiers of plants contributed to the activation of the synthesis of unsaturated fatty acids. It was found that, according to the fatty acid composition, the Light soy variety is more close to the varieties of soy for food purposes.


2019 ◽  
Vol 64 (No. 03) ◽  
pp. 101-108 ◽  
Author(s):  
M Mauric ◽  
T Masek ◽  
D Bendelja Ljoljić ◽  
J Grbavac ◽  
K Starcevic

Crossbreeding of Holstein cattle with bulls of other breeds has garnered increasing interest with respect to efforts to improve performance traits and to decrease problems with fertility and health. Therefore, the objective of this study was to compare the effects of the fatty acid synthase (FASN) gene on milk production traits and fatty acid composition of Simmental and first-generation Holstein × Simmental crossbred cows. A total of 105 cows (72 Simmental and 33 crossbred Holstein) were genotyped using the PCR-RFLP method and their fatty acid profiles were analysed. The crossbred Holstein cows with diplotype TW/AR had significantly higher fat content and yield compared to the purebred Simmental cows of the same diplotype. The Holstein × Simmental cows with the diplotype AR/AR were also characterised by significantly lower content of C16:0 and saturated fatty acids, but higher C18:1n9, monounsaturated fatty acid and monounsaturated fatty acid/saturated fatty acid content compared to the same diplotype of the Simmental cattle. These results indicate that with accurate breeding plans, crossbreeding Holstein cows with Simmental bulls could be directed towards a more desirable fatty acid composition of milk and dairy products.


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