L1876

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关键词:'L1876'

显示 31-38 共 38 条结果关于 "L1876" 范围论文

Dichloro-4-quinolinol-3-carboxylic acid: synthesis and antioxidant abilities to scavenge radicals and to protect methyl linoleate and DNA.

Guo-Xiang Li et al.

European journal of medicinal chemistry, 45(5), 1821-1827 (2010-02-04)

5,7-, 5,8-, 6,8-, 7,8-dichloro-4-quinolinol-3-carboxylic acid (5,7-, 5,8-, 6,8-, 7,8-DCQA) together with 7-chloro-4-quinolinol-3-carboxylic acid (7-CQA) and 4-quinolinol-3-carboxylic acid (QA) were synthesized to investigate the antioxidant properties. 5,7-DCQA exhibited the highest ability to scavenge 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonate) cationic radical (ABTS+.), 2,2'-diphenyl-1-picrylhydrazyl (DPPH) and galvinoxyl

Preparation of acetonides from soybean oil, methyl soyate, and fatty esters.

Atanu Biswas et al.

Journal of agricultural and food chemistry, 59(7), 3066-3070 (2011-03-08)

This paper describes the preparation of a new type of branched vegetable oil and its methyl ester that involves the formation of acetonides. A facile and environmentally friendly synthesis has been found to produce acetonides that entails the use of

Betacyanins as phenol antioxidants. Chemistry and mechanistic aspects of the lipoperoxyl radical-scavenging activity in solution and liposomes.

L Tesoriere et al.

Free radical research, 43(8), 706-717 (2009-06-24)

Reaction kinetics of betanin and its aglycone betanidin towards peroxyl radicals generated from the azo-initiated oxidation of methyl linoleate in methanol and of a heterogeneous aqueous/soybean phosphatidylcholine liposomal system were studied by monitoring formation of linoleic acid hydroperoxides and consumption

Reaction products of [60]fullerene during the autoxidation of methyl linoleate in bulk phase.

Akio Kadowaki et al.

Chemistry and physics of lipids, 165(2), 178-185 (2012-01-03)

The antioxidative action of fullerenes has received much attention, but their reaction mechanism toward lipid-derived peroxyl radicals has not been well elucidated. In this study, the reaction products of [60]fullerene (C(60)) during the autoxidation of methyl linoleate (MeL) were isolated

Feruloylacetone as the model compound of half-curcumin: synthesis and antioxidant properties.

Jian-Ying Feng et al.

European journal of medicinal chemistry, 46(4), 1198-1206 (2011-02-19)

In order to clarify the contribution of phenolic and enolic hydroxyl group to the antioxidant capacity of feruloylacetone, a model compound of half-curcumin, 6-(p-hydroxy-m-methoxyphenyl)-5-hexene-2,4-dione (FT), 6-(p-benzyloxy-m-methoxyphenyl)-5-hexene-2,4-dione (BMFT), 6-(m,p-dihydroxyphenyl)-5-hexene-2,4-dione (DDFT), 6-(p-hydroxy-m-methoxyphenyl)hexane-2,4-dione (DHFT), 6-(p-hydroxy-m-methoxyphenyl)-5-hexene-2,4-diol (THFT), and ethyl 2-(p-hydroxy-m-methoxybenzylidene)-3-oxobutanoate (EOFT) were synthesized. The

Ultrasound intensification suppresses the need of methanol excess during the biodiesel production with Lipozyme TL-IM.

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

Ozone-induced dissociation of conjugated lipids reveals significant reaction rate enhancements and characteristic odd-electron product ions.

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

[Studies on the chemical constituents of Laportea bulbifera].

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

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