Bibliografías temáticas / Fatty acids

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Literatura académica sobre el tema "Fatty acids"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 9 de junio de 2025

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Artículos de revistas sobre el tema "Fatty acids"

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Amalarani, Sivamurugan, Ayothi Parthasarathy, Shanmugam Kathiresan, Sampathrajan Vellaikumar, and S. Priscilla A. "Molecular Identification and Biochemical Characterization of Graesiella emersonii LDC1 as a Potential Source of Omega -3 Fatty Acids." Indian Journal of Science and Technology 18, no. 8 (March 3, 2025): 640–50. https://doi.org/10.17485/IJST/v18i8.2488.

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<strong>Objectives:</strong>&nbsp;Omega-3 fatty acids are poly-unsaturated and essential with significant health benefits. The inability of conventional sources like plants and fish oil to meet the growing demand for omega-3 fatty acids geared up the search for alternative sources. The current study has focused on assessing the potential of a freshwater microalga, Graesiella emersonii LDC1, to produce Polyunsaturated Fatty Acids (PUFAs), particularly concerning omega-3 fatty acids.&nbsp;<strong>Methods:</strong>&nbsp;The taxonomy of the isolate was assessed using a combination of molecular techniques and in silico tools, such as BLAST, CLUSTAL OMEGA, and MEGA 11. The isolate was characterized in terms of its growth pattern and lipid productivity. Additionally, its fatty acid methyl ester profile was analyzed using Gas chromatography-mass spectrometry.&nbsp;<strong>Findings:</strong>&nbsp;The isolated microalga was identified as Graesiella emersonii due to a 99.72% sequence similarity and phylogenetic tree analysis. The fatty acid methyl esters profile demonstrated the dominance of poly-unsaturated fatty acids (61.7%), followed by saturated fatty acids (22.4%). Mono-unsaturated fatty acids contribute a notable 5.6%, with other compounds enriching the mix at 10.3%. These results also underscored the potential of the isolate to produce essential omega-3 fatty acids, including &alpha;-linolenic acid (36.0%), 8,11,14-Docosatrienoic acid (28.3%), stearidonic acid (1.9%) and docosahexaenoic acid (6.1%).&nbsp;<strong>Novelty:</strong>&nbsp;G. emersonii LDC1 has a promising path for docosahexaenoic acid production through the Omega-3 fatty acid biosynthesis route. This study has produced the second scientific report on a natural source of 8,11,14-docosatrienoic acid (C22:3), a rare omega-8 fatty acid with potential health benefits, such as cardioprotective functions. <strong>Keywords:</strong>&nbsp;&alpha;-linolenic acid, Docosahexaenoic Acid, Graesiella emersonii, Omega-3 Fatty Acids and Polyunsaturated Fatty Acids &nbsp;
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El-Shattory, Y., Saadia M. Aly, and M. G. Megahed. "Propylenated fatty acids as emulsifiers." Grasas y Aceites 50, no. 4 (August 30, 1999): 264–68. http://dx.doi.org/10.3989/gya.1999.v50.i4.665.

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Feliu, María, Anabel Impa Condori, Inés Fernandez, and Nora Slobodianik. "Omega 3 Fatty Acids vs Omega 6 Fatty Acids." Current Developments in Nutrition 6, Supplement_1 (June 2022): 512. http://dx.doi.org/10.1093/cdn/nzac077.015.

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Abstract Objectives Dietary lipids have a very important role in nutrition and must be ingested in an appropriate proportion. Objective: To study the effect of w3 fatty acid supplementation of a diet containing sunflower oil (rich in fatty acids omega 6) as fat source, on serum fatty acid profiles of growing rats. Methods Weanling Wistar rats received during 10 days normocaloric diet and fat was provided by sunflower oil (S group). The others groups received the same diet supplemented with 24mg/day of fish oil (SF group) or chía oil (SCh group). Control group (C) received AIN´93 diet. Serum fatty acids profiles were determined by gas chromatography. Statistical analysis used ANOVA test. Results Results: (expressed as %Area) SERUM: OLEIC C:10.11 ± 1.84, S:12.13 ± 3.84, SCh:12.74 ± 1.56, SF: 13.12 ± 2.82; ARACHIDONIC C:13.40 ± 4.39, S:17.61 ± 4.09, SCh: 15.75 ± 0.89, SF:15.41 ± 1.76; LINOLEIC C:20.52 ± 3.37, S: 19.80 ± 3.36, SCh: 21.14 ± 2.12, SF: 18.92 ± 3.87; LINOLENIC (ALA) C:0.93 ± 0.27a, S:0.19 ± 0.06 b, SCh: 0.28 ± 0.08b, SF:0.22 ± 0.05b; EPA C:0.80 ± 0.22, S:0.68 ± 0.15, SCh: 0.74 ± 0.18, SF: 0.67 ± 0.14; DHA C:1.60 ± 0.55a, S:1.14 ± 0.35a, SCh:1.70 ± 0.45a, SF:4.22 ± 0.93b. Media that didn't present a letter (a, b) in common, were different (p &amp;lt; 0.01). In sera, S, SF and SCh groups showed lower ALA levels compared to C. SF group presented high levels of DHA. Diet S was mainly a contributor to linoleic acid with a ratio w6/w3 = 250 (recommended value: 5–10). Conclusions The diet containing sunflower oil as fat source shows that ω6 family route was exacerbated; by the other hand ω3 family was depressed. Chia supplement showed a tendency towards higher values of w3 family but were significantly lower than C. Fish oil supplement increase significantly DHA values. Diet containing sunflower oil as fat source provoked changes in serum fatty acids profiles and the supplementation with w3 fatty acid provided by chía or fish oil do not increase ALA values significantly. Diet influences the serum fatty acid profile, being not only important the percentage of lipids on it but also the different fatty acids pattern. Funding Sources UBACyT: 20020190100093BA.
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Vetter, Walter, and Christine Wendlinger. "Furan fatty acids - valuable minor fatty acids in food." Lipid Technology 25, no. 1 (January 2013): 7–10. http://dx.doi.org/10.1002/lite.201300247.

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Azzoug, Saïd, and Djamila MESKINE. "Trans-fatty acids." Batna Journal of Medical Sciences (BJMS) 6, no. 1 (July 1, 2019): 15–17. http://dx.doi.org/10.48087/bjmsra.2019.6105.

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Les études ont montré que la consommation des acides gras trans provenant de l’hydrogénation industrielle partielle des huiles végétales était néfaste pour la santé en augmentant notamment le risque cardiométabolique ; leur consommation devrait donc être limitée voir interdite comme le suggèrent certaines recommandations. Mais d’un autre côté, certains acides gras trans naturels issus des ruminants pourraient être bénéfiques pour la santé et leur consommation ne devrait de ce fait pas être restreinte. L’effet des acides gras trans devrait donc être nuancé en fonction de leur origine naturelle ou industrielle.
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Holman, Ralph T. "ESSENTIAL FATTY ACIDS." Nutrition Reviews 16, no. 2 (April 27, 2009): 33–35. http://dx.doi.org/10.1111/j.1753-4887.1958.tb00660.x.

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SUGANO, Michihiro, and Ikuo IKEDA. "Essential Fatty Acids." Journal of Japan Oil Chemists' Society 40, no. 10 (1991): 831–37. http://dx.doi.org/10.5650/jos1956.40.831.

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&NA;. "Unsaturated fatty acids." Reactions Weekly &NA;, no. 495 (April 1994): 12. http://dx.doi.org/10.2165/00128415-199404950-00051.

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GURR, MICHAEL I. "Isomeric fatty acids." Biochemical Society Transactions 15, no. 3 (June 1, 1987): 336–38. http://dx.doi.org/10.1042/bst0150336.

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Karmali, R. A. "Fatty acids: inhibition." American Journal of Clinical Nutrition 45, no. 1 (January 1, 1987): 225–29. http://dx.doi.org/10.1093/ajcn/45.1.225.

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Tesis sobre el tema "Fatty acids"

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Baker, Nancy Carol. "The Associations Among Dietary Fatty Acids, Plasma Fatty Acids, and Clinical Markers in Postmenopausal Women with Diabetes." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1253666943.

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Syed, Rahmatullah M. S. K. "Synthesis and physical properties of C18 azido-oxygenated and N-heterocyclic fatty acid derivatives." Thesis, [Hong Kong : University of Hong Kong], 1991. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12964657.

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Huws, Enlli Haf. "Novel bio-active fatty acids." Thesis, Bangor University, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568810.

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New methods were developed to produce thiolated analogues of Mycobacteria components. Thiolated tuberculostearic acid, (S)-18-mercapto-l O-methyloctadecanoic acid, was firstly produced in seven steps in an overall yield of 7.6 %. This was followed by the first synthesis of a thiolated simple mycolic acid, the disulfide, ((2R,2' R,3R,3' R)- 2,2' - (disulfanediylbis(tetradecane-14, I-diyl))bis(3-hydroxyhenicosanoic acid, in 11 steps in an overall yield of 2.6 %. The first synthesis of a thiolated u-rnethyl-zrcns-cyclopropane methoxy mycolic acid was also achieved using the newly developed methods with the thiol introduced at two different positions within the molecule. (S,S,S,R,S,R,2R,2R')-26-26'- Disulfanediylbis(2-((R)-I-hydroxy-19-((1 S,2R)-2-((2S, 19S,20S)-19-methoxy-20- methyloctatriacontan-2-yl)cyclopropyl)nonadecyl)hexacosanoic acid, which includes the thiolated disulfide at the end of the a-alkyl chain, was synthesised in 18 steps from synthetically prepared starting materials in an overall yield of2.6 %. (S)-2-((S)-I-Hydroxy- 19-((1R,2S)-2-((2R, 19R,20R)-19-methoxy-20-methyloctatriacontan-2- yl)cyclopropyl)nonadecyl)-N-(2-((2-((R)-2-((R)-I-hydroxy-19-((IS,2R)-2-((2S, 19S,20S)- 19-methoxy- 20-methyloctatria-contan- 2- yl)cyclopropyl)nonadecyl)hexacosanamido )ethyl)disulfanyl)ethyl)hexacosan-amide, which contais a thiolated linker on the carboxylic acid, was synthesised in two steps from the free synthetic mycolic acid in an overall yield of 8.7 %. The different methods attempted for the formation of the thiolated analogues are discussed. To attempt to maximise the inhibitory effect of sterculic acid against Plasmodium falciparum /19 desaturase, which is essential for parasite growth, analogues of sterculic acid were designed and synthesised. 7-(2-0ctyl-cycloprop-l-enyl)-heptanoic acid methyl ester and 9-(2-octyl-cycloprop-l-enyl)-nonanoic acid methyl ester which contain one more and one less carbon atoms than sterculic acid in their chain lengths respectively were both synthesised in five steps in overall yields of 8 % and 4.6 % respectively. (±)-8-Methoxy-8- (2-octyl-cycloprop-l-enyl)-octanoic acid methyl ester was subsequently synthesised in three steps in an overall yield of 36 % whilst (±)-8-hydroxy-8-(2-octyl-cycloprop-l-enyl)- octanoic acid methyl ester was also synthesised in three steps in an overall yield of 25 %. In four steps both (± )-8-(tert-butyldimethylsilyloxy)-8-(2-octyl-cycloprop-l-enyl)-octanoic iii acid methyl ester and (±)-8-acetoxy-8-(2-octyl-cycloprop-I-enyl)-octanoic acid methyl ester were synthesised in an overall yield of 22.7 % and 34.9 % respectively. The inhibitory effects of these analogues were investigated.
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Pararasa, Chathyan. "Fatty acids, monocytes and ageing." Thesis, Aston University, 2013. http://publications.aston.ac.uk/20894/.

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Elevated free fatty acids (FFA) are a feature of ageing and a risk factor for metabolic disorders such as cardiovascular disease (CVD) and type-2 diabetes (T2D). Elevated FFA contribute to insulin resistance, production of inflammatory cytokines and expression of adhesion molecules on immune cells and endothelial cells, risk factors for CVD and T2D. Molecular mechanisms of FFA effects on monocyte function and how FFA phenotype is affected by healthy ageing remain poorly understood. This thesis evaluated the effects of the two major FFA in plasma, oleate and palmitate on monocyte viability, cell surface antigen expression, and inflammatory activation in THP-1 monocytes. Palmitate but not oleate increased cell surface expression of CD11b and CD36 after 24h, independent of mitochondrial superoxide, but dependent on de novo synthesis of ceramides. LPS-mediated cytokine production in THP-1 monocytes was enhanced and decreased following incubation with palmitate and oleate respectively. In a model of monocyte-macrophage differentiation, palmitate induced a pro-inflammatory macrophage phenotype which required de novo ceramide synthesis, whilst oleate reduced cytokine secretion, producing a macrophage with enhanced clearance apoptotic cells. Plasma fatty acid analysis in young and mid-life populations revealed age-related increases in both the SFA and MUFA classes, especially the medium and very long chain C14 and C24 fatty acids, which were accompanied by increases in the estimated activities of desaturase enzymes. Changes were independently correlated with increased PBMC CD11b, plasma TNF-a and insulin resistance. In conclusion, the pro-atherogenic phenotype, enhanced LPS responses in monocytes, and pro-inflammatory macrophage in the presence of palmitate but not oleate is reliant upon de novo ceramide synthesis. Age-related increases in inflammation, cell surface integrin expression are related to increases in both the MUFA and SFA fatty acids, which in part may be explained by altered de novo fatty acid synthesis.
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Kishino, Shigenobu. "Production of conjugated fatty acids by lactic acid bacteria." Kyoto University, 2005. http://hdl.handle.net/2433/86244.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第11617号<br>農博第1473号<br>新制||農||905(附属図書館)<br>学位論文||H17||N4010(農学部図書室)<br>UT51-2005-D366<br>京都大学大学院農学研究科応用生命科学専攻<br>(主査)教授 清水 昌, 教授 加藤 暢夫, 教授 植田 充美<br>学位規則第4条第1項該当
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Kew, Samantha. "Fatty acids and the immune system : dose response studies with n-3 polyunsaturated fatty acids." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396188.

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Yu, Rong. "Metabolic interactions among amino acids, phospholipids and fatty acids." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45211.

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Cystic fibrosis (CF) is the most common life-shortening disorder among Caucasians. Excessive faecal bile acid loss, increased oxidant stress, reduced plasma choline, increased oxidant stress, reduced glutathione and alterations in essential fatty acids are well recognized in patients with CF. It is also well-known that diabetes perturbs the methionine-homocysteine cycle. However, experimental data linking loss of amino acids in CF or decreased glucose availability in experimental diabetes to altered phospholipids and fatty acid metabolism are lacking. In the liver, bile acids are conjugated with glycine or taurine prior to secretion, and glycine de novo synthesis begins with glucose. Thus, the objectives of this thesis are: 1) to determine if inducing faecal bile acid loss will alter the methionine-homocysteine, and choline-betaine cycle metabolites, phospholipids and phospholipids n-6 and n-3 fatty acids, and 2) to show that experimental diabetes, which decreases glucose availability, alters methionine-homocysteine and choline-betaine cycle metabolites, phospholipids and phospholipid fatty acids in rats. Studies to address the first objective demonstrated that inducing faecal bile acid malabsorption leads to fat malabsorption with increased faecal total lipids and phospholipid excretion. This increased excretion was accompanied by increased plasma betaine concentration, decreased plasma triacylglycerol concentration, increased plasma and liver S-adenosylhomocysteine (SAH) concentration, and changes in the fatty acid composition of hepatic phospholipids. Studies to address the second objective showed that experimental diabetes led to increased plasma betaine concentration, decreased homocysteine concentration, increased liver phosphatidylethanolamine, decreased phosphatidylcholine, changes in the fatty acid composition of hepatic phospholipids, and abundance of the enzyme choline dehydrogenase. Thus, experimental diabetes, which reduces intracellular glucose availability, alters methionine-homocysteine and choline-betaine cycle metabolites, phospholipids and fatty acids. In conclusion, metabolism of phospholipids, their fatty acids, and the amino acids involved in the methionine-homocysteine cycle are inter-related.
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Peet, Daniel J. "Protein-bound fatty acids in mammalian hair fibres /." Connect to thesis, 1994. http://eprints.unimelb.edu.au/archive/00000641.

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Sieberg, Maureen A. "Heritability and development of the free fatty acids and acylglycerideconstituent fatty acids in Vernonia galamensis oil." Diss., The University of Arizona, 2003. http://hdl.handle.net/10150/280501.

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Since the mid-1970's, there has been active research on the development of Vernonia galamensis (Cass.) Less. as a potential new oilseed crop. Vernolic acid (cis-12:13-epoxy-cis-9-octadecenoic acid) comprises 70--75% of vernonia oil and is chemically reactive, affording it a variety of industrial applications. A concern in the domestication of an oilseed crop is to establish a breeding program to improve oil quality traits. The objectives of this research were to (1) develop a rapid procedure for seed analyses; (2) determine the development of vernonia oil; and (3) estimate the narrow-sense heritability (h 2) of oil quality traits. Successful separation of free fatty acids (FFA) and acylglycerides from small vernonia seed samples was achieved using aminopropyl solid phase extraction columns. Acylglycerides were eluted with a mixture of chloroform and isopropanol, while FFA were eluted with a mixture of acetone and trifluoroacetic acid. Four breeding lines from a collection of Vernonia galamensis held at the US Water Conservation Laboratory in Phoenix, AZ were used for the oil development study and grown in field trails in Phoenix and Tucson, Arizona. Seeds were collected on nine different days after flowering over the course of seed maturation. Seed samples were analyzed for FFA, acylglyceride constituent fatty acids, total acylglycerides, and total oil. In each breeding line, FFA content changed significantly throughout the course of the measurement period, and synthesis of acylglycerides constituent fatty acids followed a previously described pathway proceeding from C16:0 to C18:0 to C18:1 to C18:2 to C18:1 epoxy. Vernolic acid increased late in the measurement period, while total acylglycerides and total oil increased steadily over the period. Mature vernonia seed exhibited substantial variation in the amount of FFA, acylglyceride constituent fatty acids, total acylglycerides, and total oil. Sixty-nine half-sib families were created to study the heritability of FFA, vernolic acid, acylglycerides, and total oil production. Mature capitula were collected and analyzed individually for oil constituents. Narrow sense heritability estimates for these four oil quality traits were: FFA = 33%, vernolic acid = 65%, acylglycerides = 47%, and total oil = 50%. The results indicate potential for progress in selection for these traits.
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Barton, Louise Marie. "Polyunsaturated fatty acids and adrenal steroidogenesis." Thesis, Royal Veterinary College (University of London), 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519549.

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Libros sobre el tema "Fatty acids"

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Mostofsky, David I., Shlomo Yehuda, and Norman Salem. Fatty Acids. New Jersey: Humana Press, 2001. http://dx.doi.org/10.1385/1592591191.

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Mostofsky, David I., Shlomo Yehuda, and Norman Salem, eds. Fatty Acids. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0.

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Dhull, Sanju Bala, Sneh Punia, and Kawaljit Singh Sandhu. Essential Fatty Acids. Edited by Sanju Bala Dhull, Sneh Punia, and Kawaljit Singh Sandhu. First edition. | Boca Raton : CRC, 2021.: CRC Press, 2020. http://dx.doi.org/10.1201/9780429321115.

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Dijkstra, Albert J., Richard J. Hamilton, and Wolf Hamm, eds. Trans Fatty Acids. Oxford, UK: Blackwell Publishing Ltd, 2008. http://dx.doi.org/10.1002/9780470697658.

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BNF Task Force on Trans Fatty Acids., ed. Trans fatty acids. 2nd ed. London: British Nutrition Foundation, 1995.

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J, Dijkstra Albert, Hamilton R. J, and Hamm Wolf, eds. Trans fatty acids. Oxford: Blackwell Pub., 2008.

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BNF Task Force on Trans Fatty Acids., ed. Trans fatty acids. London: British Nutrition Foundation, 1987.

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Council, National Dairy, ed. Trans fatty acids. London: National Dairy Council, 1994.

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Shahidi, Fereidoon, and John W. Finley, eds. Omega-3 Fatty Acids. Washington, DC: American Chemical Society, 2001. http://dx.doi.org/10.1021/bk-2001-0788.

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Hegde, Mahabaleshwar V., Anand Arvind Zanwar, and Sharad P. Adekar, eds. Omega-3 Fatty Acids. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40458-5.

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Capítulos de libros sobre el tema "Fatty acids"

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Szczepiorkowski, Zbigniew M., and Michael Laposata. "Fatty Acid Ethyl Esters." In Fatty Acids, 291–308. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_17.

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Peet, Malcolm, and Shaun Ryles. "Eicosapentaenoic Acid." In Fatty Acids, 345–56. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_20.

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Weisinger, Richard S., James A. Armitage, Peta Burns, Andrew J. Sinclair, Algis J. Vingrys, and Harrison S. Weisinger. "The Role of Omega-3 Polyunsaturated Fatty Acids in Body Fluid and Energy Homeostasis." In Fatty Acids, 377–401. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_22.

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Simopoulos, Artemis P. "Evolutionary Aspects of Diet." In Fatty Acids, 3–22. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_1.

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Jenski, Laura J., and William Stillwell. "Role of Docosahexaenoic Acid in Determining Membrane Structure and Function." In Fatty Acids, 41–62. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_3.

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Okuyama, Harumi, Yoichi Fujii, and Atsushi Ikemoto. "Brightness—Discrimination Learning Behavior and Retinal Function Affected by Long-Term α-Linolenic Acid Deficiency in Rat." In Fatty Acids, 219–35. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_13.

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Connor, William E., Gregory J. Anderson, and Don S. Lin. "Dietary N-3 Fatty Acid Deficiency and Its Reversibility." In Fatty Acids, 177–92. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_11.

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Mitchell, Drake C., and Burton J. Litman. "Modulation of Receptor Signaling by Phospholipid Acyl Chain Composition." In Fatty Acids, 23–40. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_2.

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Hibbeln, Joseph R., and Norman Salem. "Omega-3 Fatty Acids and Psychiatric Disorders." In Fatty Acids, 311–30. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_18.

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Stafstrom, Carl E. "Effects of Fatty Acids and Ketones on Neuronal Excitability." In Fatty Acids, 273–90. Totowa, NJ: Humana Press, 2001. https://doi.org/10.1007/978-1-59259-119-0_16.

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Actas de conferencias sobre el tema "Fatty acids"

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Strand, Mikael, Gard Reian, and Jing Jin. "Impact of Free Fatty Acids, Water Content, and Temperature on the Chemical Resistance of Coatings in Biofuel Precursor Storage." In CONFERENCE 2025, 1–8. AMPP, 2025. https://doi.org/10.5006/c2025-00022.

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Abstract This paper presents an analysis of the chemical resistance of industrial coatings, specifically epoxy and glass flake reinforced vinyl ester, towards fatty acids. The study focuses on understanding how variables such as fatty acid type (chain length/molecular size), water content, and temperature influence the degradation of these coatings. Our findings indicate that the integrity of the coatings is impacted by the aggressiveness of the fatty acids, which is directly linked to the chain length (molecular size), water content, and storage temperature. Smaller molecular size fatty acids, along with increased water content and elevated temperatures, were observed to accelerate the deterioration of the coating materials. These results are crucial for choosing the technology to protect industry assets for storage and handling biofuel precursors based on vegetable oils and fatty acids.
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Flores, S., A. Hadzich, and J. Arízaga. "Self-healing Capacity Evaluation of Epoxy Resin Containing Microcapsules Filled with Oils of Different Polyunsaturated Fatty Acids Composition." In LatinCORR 2023, 25–30. AMPP, 2023. https://doi.org/10.5006/lac23-20441.

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Abstract Microcapsules based on poly(melamine-urea-formaldehyde) were prepared by in situ polymerization method using vegetable oils with different polyunsaturated fatty acids content (chia, sacha inchi, linseed, and avocado oils). The microcapsules were incorporated into a commercial epoxy resin using different concentrations: 5 %, 10 % and 20 % wt. Steel specimens protected with the self-healing coatings were tested in a salt fog chamber. “X” shaped and line incisions were made on the coatings to evaluate their self-repairing capacity. The effect of the relative content of oleic, linoleic and linolenic fatty acids was studied. The samples containing microcapsules with higher oleic acid content presented an acceptable behavior on the scratched line. In contrast, the coatings prepared with microcapsules with higher content of linoleic and linolenic fatty acids offered sufficient protection on the damaged area. Capsule addition influenced the self-healing performance of coatings.
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Fischer, E. R., and J. E. Parker. "Tall Oil Fatty Acid Anhydrides as Corrosion Inhibitor Intermediates." In CORROSION 1995, 1–8. NACE International, 1995. https://doi.org/10.5006/c1995-95493.

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Abstract Anhydrides derived from tall oil fatty acids offer enhanced corrosion inhibition properties as compared to traditional dimer/trimer acids. The chemistry of this intermediate and its use in corrosion inhibition for down hole applications, as well as the synthesis of novel oil- and water-soluble derivatives will be discussed.
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KRUMINA-ZEMTURE, Gita, and Ilze BEITANE. "FATTY ACID COMPOSITION IN BUCKWHEAT (FAGOPYRUM ESCULENTUM M.) FLOURS AND THEIR EXTRUDED PRODUCTS." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.017.

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Lipids compose a small part of buckwheat seed, but they play an important role in the quality of food. The aim of this study was to evaluate the composition and content of fatty acids in different buckwheat flours (raw, roasted, white, black and germinated) and their extruded products. Fatty acids were quantified by gas chromatography according to the BIOR-T-012-131-2011 method. The prevalence of unsaturated fatty acids was determined which varied between 78.7 and 82.0 g 100 g-1 of fat in buckwheat samples. Linoleic and oleic acids were the most abundant unsaturated fatty acids, whereas palmitic acid was the main saturated fatty acid in buckwheat flours and their extruded products. Unsaturated/saturated fatty acid ratio was determined within 3.69 and 4.56, whereas linoleic/α-linolenic acid ratio was between 13.54 and 16.04. No trans-fatty acids in buckwheat flours and their extruded products were observed. The results showed that germination and extrusion of buckwheat flours did not have any effect on the content and composition of fatty acids (p&gt;0.05).
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Bewick, Patrick, Eva Collakova, and Bo Zhang. "Identification of Soybean Germplasm with Higher Concentrations of Long Chain Fatty Acids." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/yetx4658.

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Fatty Acids are essential components of the diet and are critical for proper cell function. A balanced ratio of ω-3 to ω-6 fatty acids can be tied to positive human cardiovascular and autoimmune health. Aquaculture requires a much higher ratio. Soybean contains a substantial amount of fatty acids, but many varieties contain significantly higher concentrations of ω-6 fatty acids. The objective of this project was to identify soybean accessions with unique fatty acid profiles for genetic analysis to inform breeding decisions. Samples of 50 accessions originating from 16 countries were taken from seeds harvested in Blacksburg, VA in 2020. A gas chromatograph-flame ionization detector was used to quantify fatty acid levels and composition. Mass spectrometry was used to confirm the identity of peaks of interest. Fatty acid profiles for each sample were compared to the mean of all samples, and accessions with significantly different fatty acid concentrations were identified. These preliminary results will be used to inform future projects.
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Ghelmez, Mihaela A., Maria Honciuc, and Elena Slavnicu. "Optical nonlinearities in fatty acids." In ROMOPTO 2000: Sixth Conference on Optics, edited by Valentin I. Vlad. SPIE, 2001. http://dx.doi.org/10.1117/12.432881.

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Sakuradani, Eiji, Kai Yoshida, Naomi Murakawa, and Takaiku Sakamoto. "Studies on filamentous fungus Fusarium sp. accumulating hydroxy fatty acids." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/bmzp3848.

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Crude glycerol is produced as a by-product on a biodiesel production process. Effective utilization of this crude glycerol may help to reduce manufacturing costs and produce value-added products. We isolated microorganisms that grow in a medium containing crude glycerol as a major carbon source and analyzed their fatty acid composition. Fusarium sp. D2 was found to accumulate fatty acid secondary metabolites such as 10-hydroxystaric acid (HYB) and 10-oxostearic acid (KetoB). These fatty acids were converted form oleic acid containing crude glycerol as a component. We isolated a hydratase gene from strain D2 and characterized the hydratase by gene expression analysis using Escherichia coli. Strain D2 accumulates toxic fatty acids such as free fatty acids added in the medium. We aimed to use strain D2 as a host for the production of functional lipids that have been difficult to produce by fermentation. We tried to develop a host-vector system for strain D2. Here, we introduce studies on Fusarium sp. D2 accumulating hydroxy fatty acids.
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Sugiyama, Takeshi, Alison J. Hobro, Takayuki Umakoshi, Prabhat Verma, and Nicholas I. Smith. "Raman spectroscopy of macrophage uptake and cellular response during exposure to dietary lipids." In JSAP-OSA Joint Symposia. Washington, D.C.: Optica Publishing Group, 2019. http://dx.doi.org/10.1364/jsap.2019.18p_e208_8.

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The increase in patients suffering from ‘lifestyle diseases such as coronary heart disease, atherosclerosis, diabetes and gout has been associated with the amount and nature of fats in our diets. In many of these diseases, macrophages and their role in lipid metabolism greatly impacts the development and severity of the disease. Fatty acids, which are a sub-class of lipids, have many different types depending on the number of carbon atoms and the presence of carbon double bonds (i.e. saturated and unsaturated fatty acids). The chemical properties of each fatty acid depend on the number of carbon atoms and degree of saturation. Therefore, it is important to investigate how macrophages metabolize these different types of fatty acids. In this research, we focus on the distribution and the uptake of four fatty acids: palmitic acid, stearic acid, oleic acid, and linoleic acid, shown in Table 1.
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Petrović, Goran, Aleksandra Đorđević, Jelena Stamenković, Marija Dimitrijević, Jelena Nikolić, Vesna Stankov Jovanović, and Violeta Mitić. "FATTY ACIDS CONTENT IN WATERMELON, MELON, SQUASH AND ZUCCHINI SEEDS." In 2nd International Symposium on Biotechnology. Faculty of Agronomy in Čačak, University of Kragujevac, 2024. http://dx.doi.org/10.46793/sbt29.61gp.

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Seed samples of ten zucchini, melon, squash and watermelon samples were examined by gas chromatography-mass spectrometry (GC-MS) analysis for the presence of fatty acids. Fatty acid composition was significantly different among various samples. Hexadecanoic acid was found in all analyzed seed samples, whereas 9,12,15-octadecanoic acid was found only in zucchini seed samples. Unsaturated fatty acids, which possess multiple health benefits, were present in all samples, in various amounts. The high concentration of essential unsaturated fatty acids in analyzed seed samples indicates that they could be used as a source of these valuable compounds in human nutrition.
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Grishaeva, I. "PROSPECTS FOR USING SECONDARY DAIRY RAW MATERIALS IN PROCESSING MARAL MEAT." In SCIENTIFIC SUPPORT FOR LIVESTOCK BREEDING IN SIBERIA, 453–55. Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS, 2024. https://doi.org/10.52686/conferencearticle_67597cf4a87447.91906776.

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The use of enzymatic ultrasonic hydrolysis makes it possible to process the skin of deer antlers and obtain a concentrate balanced in fatty acids. The ratio of polyunsaturated and saturated fatty acids in antler samples refers to the “Ideal Lipid”. The fatty acid composition of concentrates from the base of antlers and the skin of antlers is represented by 38 fatty acids, with quite high values of Omega 3 and Omega 6.
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Informes sobre el tema "Fatty acids"

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Knapp, Jr ,. F. F. (Radioiodinated free fatty acids). Office of Scientific and Technical Information (OSTI), December 1987. http://dx.doi.org/10.2172/7044018.

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Sooksai, Sarintip, and Kobkul Laoteng. Genetic study of fatty acid and lipid biosynthesis in Hansenula polymorpha. Chulalongkorn University, 2011. https://doi.org/10.58837/chula.res.2011.121.

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Two groups of Hansenula polymorpha mutants were screened by their fatty acid requirement, one requires saturated fatty acids for growth (sfa- mutamts) and the other requires unsaturated fatty acids (mfa- and pfa- mutants). Two of the sfa- mutants, S7 and S16, showed significantly difference in the fatty acid composition. S7 clearly defected in the production of C18:2∆9,12 and C18:3∆9,12,15, while S16 significantly accumulated medium-chain saturated fatty acids, C12:0 and C14:0. By tetrad analysis, the results showed that S7 had double mutation which composed of fatty acid synthesis mutation (Hpsfa7) and ∆12-desaturase mutation (Hpdes12). Two meiotic segregants, H69-2C and H69-2D harboring Hpdes12 gene, showed Sfa+ phenotype and grew on YPD without fatty acid supplementation indicating that the absence of C18 polyunsaturated fatty acids did not affect cell growth of the mutant. H69-2A and H69-2B segregants (Hpsfa7) showed Sfa- phenotype and required saturated fatty acids for growth. However, only the segregant H69-2B display similar properties to parental mutant (S7) on the growth on media supplemented with various fatty acids, while H69-2A was different. The comparison of the cloned ∆12-desaturase gene (HpDES12) of H. polymorpha SH4330 and S7 confirmed that the defect of C18:2∆9,12 และ C18:3∆9,12,15 synthesis was resulted from the mutation at ∆12-desaturase gene. Besides, the cloning gene also provided the characteristic of ∆12-desaturase of the yeast H. polymorpha. An open reading frame of the full length cDNA of ∆12-desaturase gene of H. polymorpha showed 1215 bp encoding for 404 amino acid residues (GenBank Accession No. GU226432). The deduce amino acids had the highest similarity to the ∆12-desaturase of Pichia pastoris that corresponds to the result of phylogenetic analysis. The cloned gene and mutants obtained in this study can be used as tools for studying association between fatty acid metabolism and cell physiology of eukaryotes.
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Risk Assessment, FSA Regulated Products. Safety Assessment: Outcome of assessment of Cetylated Fatty Acids as a Novel Food. Food Standards Agency, August 2023. http://dx.doi.org/10.46756/sci.fsa.loq953.

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An application was submitted to the Food Standards Agency (FSA) and Food Standards Scotland (FSS) in February 2021 from Pharmaneutra S.p.a., Italy (“the applicant”) for the authorisation of cetylated fatty acids as a novel food. The novel food is a mixture of cetylated fatty acids, cetyl myristate and cetyl oleate, which are synthesised from cetyl alcohol with myristic acid and, cetyl alcohol with oleic acid, respectively. These two cetylated fatty acids are then blended with olive oil to give a finished product containing 70 – 80% cetylated fatty acids. The application is a new application, seeking to use cetylated fatty acids within the food category: food supplements. To support the FSA and FSS in their evaluation of the application, the Advisory Committee on Novel Foods and Processes (ACNFP) were asked to review the safety dossier and supplementary information provided by the applicant. The Committee concluded that the applicant had provided sufficient information to assure the novel food, cetylated fatty acids, was safe under the proposed conditions of use. The anticipated intake levels and the proposed use in foods and food supplements was not considered to be nutritionally disadvantageous and does not mislead consumers. The views of the ACNFP have been taken into account in this safety assessment which represents the opinion of the FSA and FSS on cetylated fatty acids.
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Hofstad, Beth. Engineering Fatty Acid Synthesis in Rhodosporidium Toruloides to Produce Mid-Chain Fatty Acids and Fatty Alcohols - CRADA 501. Office of Scientific and Technical Information (OSTI), February 2021. http://dx.doi.org/10.2172/1827799.

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Stambuli, James P., and S. M. Whittemore. Site-selective Alkane Dehydrogenation of Fatty Acids. Fort Belvoir, VA: Defense Technical Information Center, December 2011. http://dx.doi.org/10.21236/ada566294.

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Muangcharoen, Vannee, Suwanna Kijparkorn, Chancharat Reodecha, and Pensuda Somkiatkul. A study on nutritive value of rabbit meat. Chulalongkorn University, 1988. https://doi.org/10.58837/chula.res.1988.42.

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Twelve carcasses were randomly selected from New Zealand White (NZW), Thai Native (N) and two reciprocal crosses between NZW and N rabbits, three from each breed group. Proximate analysis was made along with fatty acid and amino acid analysis. Percent fat and ash on dry matter basis were the only two proximate analysis found to be different among 4 breed groups (P&lt;0.05) and N meat had more fat than N x NZW group (P&lt;0.05). Among the 18 amino acids analysed, NZW and NZW x N meat had more proline than N x NZW group (P&lt;0.05) and N x NZW meat contained more tryptophan than N and NZW (P&lt;0.05). From the eight fatty acids analysed, x-linolenic acid content in NZW meat was greater than the other 3 breed groups (P&lt;0.05).
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Lee, E. J., and Dong U. Ahn. Production of Volatiles from Fatty Acids and Oils by Irradiation. Ames (Iowa): Iowa State University, January 2004. http://dx.doi.org/10.31274/ans_air-180814-1038.

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Liu, Yiliang. Omega-3 Fatty Acids and a Novel Mammary Derived Growth Inhibitor Fatty Acid Binding Protein MRG in Suppression of Mammary Tumor. Fort Belvoir, VA: Defense Technical Information Center, July 2001. http://dx.doi.org/10.21236/ada396066.

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Liu, Yiliang E. Omega-3 Fatty Acids and a Novel Mammary Derived Growth Inhibitor Fatty Acid Binding Protein MRG in Suppression of Mammary Tumor. Fort Belvoir, VA: Defense Technical Information Center, July 2002. http://dx.doi.org/10.21236/ada408070.

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Balk, Ethan M., Gaelen P. Adam, Valerie Langberg, Christopher Halladay, Mei Chung, Lin Lin, Sarah Robertson, et al. Omega-3 Fatty Acids and Cardiovascular Disease: An Updated Systematic Review. Agency for Healthcare Research and Quality, August 2016. http://dx.doi.org/10.23970/ahrqepcerta223.

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