1191-41-9Relevant academic research and scientific papers
Linoleic acid, α-linolenic acid, and monolinolenins as antibacterial substances in the heat-processed soybean fermented with Rhizopus oligosporus
Kusumah, Dewi,Maeda, Isamu,Murakami, Mai,Wakui, Misaki,Xie, Xiaonan,Yukihito, Kabuyama
, p. 1285 - 1290 (2020/03/03)
Antibacterial activities against Staphylococcus aureus and Bacillus subtilis were found in an ethanol fraction of tempe, an Indonesian fermented soybean produced using Rhizopus oligosporus. The ethanol fraction contained free fatty acids, monoglycerides, and fatty acid ethyl esters. Among these substances, linoleic acid and α-linolenic acid exhibited antibacterial activities against S. aureus and B. subtilis, whereas 1-monolinolenin and 2-monolinolenin exhibited antibacterial activity against B. subtilis. The other free fatty acids, 1-monoolein, monolinoleins, ethyl linoleate, and ethyl linolenate did not exhibit bactericidal activities. These results revealed that R. oligosporus produced the long-chain polyunsaturated fatty acids and monolinolenins as antibacterial substances against the Gram-positive bacteria during the fungal growth and fermentation of heat-processed soybean.
Zirconium-containing metal organic frameworks as solid acid catalysts for the esterification of free fatty acids: Synthesis of biodiesel and other compounds of interest
Cirujano,Corma,Llabrés I Xamena
, p. 213 - 220 (2015/02/19)
Zr-containing metal organic frameworks (MOFs) formed by terephthalate (UiO-66) and 2-aminoterephthalate ligands (UiO-66-NH2) are active and stable catalysts for the acid catalyzed esterification of various saturated and unsaturated fatty acids with MeOH and EtOH, with activities comparable (in some cases superior) to other solid acid catalysts previously reported in literature. Besides the formation of the corresponding fatty acid alkyl esters as biodiesel compounds (FAMEs and FAEEs), esterification of biomass-derived fatty acids with other alcohols catalyzed by the Zr-MOFs allows preparing other compounds of interest, such as oleyl oleate or isopropyl palmitate, with good yields under mild conditions.
Preparation of n-3 PUFAs ethyl esters by an efficient biocatalyzed solvent-free process
Morrone,D'Antona,Biondi,Lambusta,Nicolosi
, p. 173 - 176 (2012/11/06)
alpha-Linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have been subjected to esterification with ethanol in presence of lipase B from Candida antarctica (Novozym 435), in solvent free condition. The use of alcohol donors triethyl orthoformate (TEOF) or diethyl carbonate (DEC) instead of free ethanol, allowed working in irreversible esterification conditions and ALA-, EPA- and DHA-ethyl esters were obtained in quantitative yields.
Compositions and methods of omega polyunsaturated fatty acids for the treatment of oral diseases
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Page/Page column 2-3, (2011/05/05)
The invention discloses a novel discovery of anti-microbial activity against oral bacteria, which can be applied for controlling and preventing oral diseases, of omega-3, omega-6, and omega-9 fatty acids, but not limited to omega-3, omega-6, and omega-9 fatty acids; omega-3, omega-6, and omega-9 fatty acid methyl esters, and omega-3, omega-6, omega-9 fatty acid ethyl esters and their application method. The application of this discovery includes the preparation of drugs, dietary supplements, food and daily necessities with oral health care and therapeutic effects.
Novel H3PW12O40: Catalysed esterification reactions of fatty acids at room temperature for biodiesel production
De Godoi Silva, Vinicius Wilker,Laier, Leticia Oliveira,Silva, Marcio Jose Da
experimental part, p. 207 - 211 (2010/08/03)
The catalytic activity of Bronsted acids on fatty acid (FA) esterification at room temperature has been investigated. Noticeably, the H 3PW12O40 heteropolyacid (HPW) showed a very high activity than other catalysts herein evaluated, i.e. p-toluene sulfonic acid and sulfuric acid. High yields in ethyl esters (ca. 90%) were reached after a 4 h reaction at 25 °C on a HPW catalysed reactions. Despite the fact that HPW catalyst was used in a homogeneous phase, it could be efficiently recovered and reused through out a simple recycling protocol, without any activity loss. The effects of alcohol and the FA nature on yield reaction were also investigated.
Process for producing fatty acid alkyl ester composition
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Page/Page column 7-8, (2008/06/13)
An object of the present invention is to solve a problem of separation and recovery of catalysts present in an alkali metal catalytic method currently often used, a problem of excess consumption of a catalyst by a free fatty acid in a raw material, and other problems, and to solve a problem of the presence of a large excess amount of alcohol in a conventional supercritical methanol method, and to provide a method for producing a fatty acid alkyl ester composition in a reaction system containing water and free fatty acid present. The present invention has attained the above-mentioned object by provided a method for producing a fatty acid alkyl ester composition using fats and oils containing a fatty acid glyceride and/or fatty acid, wherein alcohol and/or water is allowed to co-exist with the above-mentioned fats and oils and the reaction is conducted under conditions of a temperature of 100° C. to 370° C. and a pressure of 1 to 100 MPa.
PROCESS FOR EXTRACTION AND CATALYTIC ESTERIFICATION OF FATTY ACIDS FOUND IN SEWAGE SCUM
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Page 11-13, (2008/06/13)
The innovation proposed herein describes the process of a fatty acids esterification presents in the sewage scum namely the surface phase of sewage rich in fatty matter, being that this fatty acids are extracted from the scum and esterified by acid catalysts and reagents like as methanol or ethanol.
