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Akio Kadowaki et al.
Bioscience, biotechnology, and biochemistry, 76(1), 212-214 (2012-01-11)
The antioxidative effect of fullerenes C(60) and C(70) was examined by measuring the inhibition of methyl linoleate (MeL) peroxidation in toluene initiated by 2,2'-azobis(2,4-dimethylvaleronitrile) (AMVN). The fullerenes retarded the formation of MeL hydroperoxides and lowered the rate of propagation. The
Olivier Berdeaux et al.
Chemistry and physics of lipids, 165(3), 338-347 (2012-03-20)
GC-MS and GC-FTIR were complementarily applied to identify oxidation compounds formed under frying conditions in methyl oleate and linoleate heated at 180°C. The study was focused on the compounds that originated through hydroperoxide scission that remain attached to the glyceridic
Marja Kähkönen et al.
Journal of agricultural and food chemistry, 60(5), 1167-1174 (2012-01-11)
Ellagitannins from red raspberries (Rubus idaeus) and cloudberries (Rubus chamaemorus) were isolated by using column chromatography and preparative HPLC. The berry phenolic isolates consisted of 80% (cloudberry) and of 60% (raspberry) of ellagitannins, with raspberries also containing anthocyanins. The main
Mizuka Nagai et al.
Bioscience, biotechnology, and biochemistry, 73(11), 2501-2505 (2009-11-10)
Acyl arbutin was synthesized through the condensation of arbutin with a saturated fatty acid (C6-18) by the immobilized lipase in a batch reaction. The conversion at 10 and 20 g/l-solvent of immobilized lipase reached 45% over 2 d, but the
Bassie B Marvey
International journal of molecular sciences, 10(1), 213-220 (2009-04-01)
Self- and cross-metathesis of fatty acid methyl esters (FAMEs) was investigated using a silica alumina supported Re(2)O(7) catalyst. Although a 3 wt% Re(2)O(7)/SiO(2)-Al(2)O(3)/SnBu(4) is already active for the metathesis of unsaturated FAMEs, the results have shown that particle size of
Steven Lim et al.
Journal of hazardous materials, 390, 121532-121532 (2019-12-18)
In this research, biomass from oil palm empty fruit bunch was used as the carbon precursor and sulfonated by 4-benzenediazonium sulfonate (4-BDS) to produce solid acid catalyst. The as-synthesized catalysts were characterized and the performances were tested in esterification of
Youji Okada et al.
Journal of food science, 77(11), C1211-C1217 (2012-10-13)
We examined the free radical scavenging activity of Sasa veitchii extract (Hoshi's Striped Bamboo Extract(®), HSBE), well known in folk medicine as an efficient drug and antioxidant in detail. To evaluate the free radical scavenging activity of HSBE, its reactivity
Yasutaka Shimotori et al.
Carbohydrate research, 359, 11-17 (2012-08-29)
Various glycosyl ferulates were efficiently synthesized from 2,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide (TAGB) with amine by amine-promoted glycosylation without using heavy metal. The resulted acetylated glycosyl ferulates with acetoxyl groups at C-2, C-3 and C-4 were regioselectively deacetylated at C-4 and C-6 positions
Philip T Lynett et al.
Organic & biomolecular chemistry, 9(9), 3320-3330 (2011-03-30)
It has long been recognized that garlic and petiveria, two plants of the Allium genus--which also includes onions, leeks and shallots--possess great medicinal value. In recent times, the biological activities of extracts of these plants have been ascribed to the
Shuang-Fei Cai et al.
Molecules (Basel, Switzerland), 14(8), 2935-2946 (2009-08-25)
The oxo-diperoxo molybdenum(VI) complex MoO(O(2))(2).2QOH (QOH = 8-quinilinol) was prepared and characterized by elemental analysis, IR and UV-Vis spectra. The ionic liquids (ILs) [bmim][BF(4)], [hydemim][BF(4)], and [bmim][PF(6)] were characterized by (1)H-NMR and UV-Vis spectra. The epoxidation of a technical mixture
Vitaly Roginsky
Chemistry and physics of lipids, 163(2), 127-130 (2009-11-03)
The kinetics of the chain free-radical oxidation of cardiolipin (CL), a unique phospholipid containing four linoleate moieties, have been studied for the first time. The technique based on monitoring oxygen consumption by using a Clark electrode was applied to determine
Corinne Loutelier-Bourhis et al.
Rapid communications in mass spectrometry : RCM, 26(11), 1265-1276 (2012-05-05)
The grafting of maleic anhydride onto fatty C=C double bonds is a well-known and used method to functionalize triglyceride molecules. Nevertheless, grafted products are not actually structurally well defined. In this work, the thermal grafting of maleic anhydride onto (un)saturated
Ana Penko et al.
Food chemistry, 168, 372-382 (2014-08-31)
The oxidation processes were studied in chicken patties, enriched with n-3 fatty acids, after 8days of storage at 4°C, under different aerobic conditions, and following heat treatment. Significant effects were seen on lipid and cholesterol oxidation and the sensory qualities
Cheng-Wu Fang et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 33(4), 557-559 (2010-09-18)
To study the chemical constituents of Rhizoma of Coniogramme japonica. The Rhizome of C. japonica were extracted with ethanol and the chemical constituents were separated by chromatography technique, and their structures were determined by spectral analysis. Six compounds were isolated
Fanny Bery et al.
International journal of molecular sciences, 21(13) (2020-07-10)
Hypoxia is a well-established feature of prostate cancer (PCa) and is associated with disease aggressiveness. The hypoxic microenvironment initiates multiple adaptive responses including epithelial-to-mesenchymal transition (EMT) and a remodeling of calcium homeostasis involved in cancer progression. In the present study
Fumie Saito et al.
Bioscience, biotechnology, and biochemistry, 74(1), 168-174 (2010-01-09)
gamma-Tocopherol was reacted with (E)-4-oxo-2-nonenal (ONE) at 37 degrees C in an acidic acetonitrile solution. The reaction products were isolated by reversed-phase high-performance liquid chromatography and their structures were characterized to be 5-substituted gamma-tocopherols: 5-(1-(furan-2-yl)pentyl)-gamma-tocopherol (1), 3-(1-butyl-4,5,7-trimethyl-7-(4,8,12-trimethyltridecyl)-8,9-dihydro-7H-furo[3,2-f]chromen-2yl)propanal (2), and 1-(1-butyl-4,5,7-trimethyl-7-(4,8,12-trimethyltridecyl)-8,9-dihydro-7H-furo[3,2-f]chromen-2-yl)-4-(furan-2-yl)octan-3-one
Yuewei Zhao et al.
Toxicology letters, 205(3), 302-309 (2011-07-05)
Pyrrolizidine alkaloid (PA)-containing plants are widespread in the world and are probably the most common poisonous plants affecting livestock, wildlife, and human. PAs require metabolic activation to generate pyrrolic metabolites (dehydro-PAs) that bind cellular protein and DNA, leading to hepatotoxicity
Zsuzsanna Grózer et al.
Virulence, 6(1), 85-92 (2015-02-06)
Prostaglandins are C20 fatty acid metabolites with diverse biological functions. In mammalian cells, prostaglandins are produced from arachidonic acid (AA) via cyclooxygenases (COX1 and COX2). Although fungi do not possess cyclooxygenase homologues, several pathogenic species are able to produce prostaglandins from
T A Misharina et al.
Prikladnaia biokhimiia i mikrobiologiia, 48(1), 117-123 (2012-05-10)
The antiradical and antioxidant properties of essential oil mixtures (EOMs) with various compositions were studied and compared in model systems of hexanal autooxidation, thermal oxidation of methyl linoleate and beta3-carotene, and in a reaction with the stable diphenylpicrylhydrazyl radical. It
Huong T Pham et al.
Journal of the American Society for Mass Spectrometry, 24(2), 286-296 (2013-01-08)
Ozone-induced dissociation (OzID) is an alternative ion activation method that relies on the gas phase ion-molecule reaction between a mass-selected target ion and ozone in an ion trap mass spectrometer. Herein, we evaluated the performance of OzID for both the
Obie Farobie et al.
Bioresource technology, 191, 306-311 (2015-05-26)
In this study, biodiesel production under supercritical conditions among methanol, ethanol, and tert-butyl methyl ether (MTBE) was compared in order to elucidate the differences in their reaction behavior. A continuous reactor was employed, and experiments were conducted at various reaction
Oier Aizpurua-Olaizola et al.
Journal of food science, 80(1), E101-E107 (2014-12-05)
In this study, supercritical fluid extraction has been successfully applied to a sequential fractionation of fatty acids and polyphenols from wine wastes (2 different vitis vinifera grapes). To this aim, in a 1st step just fatty acids were extracted and
Xian-Guo Zou et al.
Journal of agricultural and food chemistry, 62(43), 10594-10603 (2014-10-10)
In the present study, a human milk fat substitute (HMFS) enriched in medium-chain fatty acids (MCFAs) was synthesized through acidolysis reaction from Cinnamomum camphora seed oil (CCSO) with oleic acid in a solvent-free system. A commercial immobilized lipase, Lipozyme RM
Jana Olšovská et al.
Journal of the science of food and agriculture, 99(4), 1772-1779 (2018-09-19)
Although fatty acids have a beneficial effect on yeast growth during fermentation, their effect on foam and sensory stability of beer is negative. In general, long-chain fatty acids originate from raw materials, whereas short-chain acids are produced by yeast during
Preeti B Subhedar et al.
Ultrasonics sonochemistry, 27, 530-535 (2015-05-03)
The synthesis of biodiesel from sunflower oil and methanol based on transesterification using the immobilized lipase from Thermomyces lanuginosus (Lipozyme TL-IM) has been investigated under silent conditions and under an ultrasound field. Ultrasound assisted process led to reduced processing time
Emmanuel Richaud et al.
Chemistry and physics of lipids, 165(7), 753-759 (2012-10-03)
This study deals with oxidation kinetics of three unsaturated fatty esters: methyl oleate, methyl linoleate and methyl linolenate at temperatures ranging from 90 to 150 °C. The reaction was monitored by chemiluminescence. A kinetic model was derived from a simple
Qingsu Xia et al.
International journal of environmental research and public health, 10(3), 1062-1084 (2013-03-16)
Nitro-polycyclic aromatic hydrocarbons (nitro-PAHs) are a class of genotoxic environmental contaminants. We have long been interested in determining the mechanisms by which nitro-PAHs induce genotoxicity. Although the metabolic activation of nitro-PAHs leading to toxicological activities has been well studied, the
Zhu Zhu et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 34(2), 223-225 (2011-08-10)
To study the chemical constituents of Laportea bulbifera. 70% EtOH was used for constituent extraction, silica gel column chromatography for constituent seperation, physical and chemical properties together with spectroscopic methods for chemical structure identification. six compounds were obtained from root
David K Willis et al.
Journal of insect science (Online), 10, 66-66 (2010-08-03)
A microchip array encompassing probes for 14,010 genes of Drosophila melanogaster was used to analyze the effect of juvenile hormone (JH) on genome-wide gene expression. JH is a member of a group of insect hormones involved in regulating larval development
Yuewei Zhao et al.
Chemosphere, 85(1), 83-91 (2011-06-18)
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous genotoxic environmental pollutants and potentially pose a health risk to humans. In most if not all cases, PAHs in the environment can be oxidized into their corresponding PAH-diones. This process is considered a detoxification
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