Journal ArticleDOI
New Components with Potential Antioxidant and Organoleptic Properties, Detected for the First Time in Liquid Smoke Flavoring Preparations
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In this paper, a commercial aqueous smoke preparation was exhaustively extracted, using dichloromethane as solvent, until the carrier had totally lost its smoky odor.Abstract:
A commercial aqueous smoke preparation was exhaustively extracted, using dichloromethane as solvent, until the carrier had totally lost its smoky odor. Qualitative and quantitative characterizations of the extract were performed by means of gas chromatography/mass spectrometry and gas chromatography with flame ionization detector, respectively. Carbonyl derivatives including aldehydes and ketones as well as acids and esters are almost absent; however, the high proportion of phenol, guaiacol, and syringol derivatives is noticeable. The presence of di-tert-butylhydroxytoluene, several hopanes, and a number of lignin dimers must be pointed out; these latter components had apparently not been detected before either in smoke flavorings or in wood smoke. The mass spectral data of the compounds considered as lignin dimers and of the unidentified components are given. The presence of lignin dimers is very interesting from the point of view of health and food technology for their therapeutic, organoleptic, and antioxidant properties.read more
Citations
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Journal ArticleDOI
Natural antioxidants from residual sources.
Andrés Moure,José Manuel Cruz,Daniel Franco,J.Manuel Domı́nguez,Jorge Sineiro,Herminia Domínguez,María José Núñez,J.Carlos Parajó +7 more
TL;DR: In this paper, the authors focus on the extraction of polyphenols from agricultural and industrial wastes, and summarize available data on the factors affecting their antioxidant activity and stability, and, in some cases, the reported major active compounds identified.
Journal ArticleDOI
Antioxidant activity of compounds isolated from the pyroligneous acid, Rhizophora apiculata
TL;DR: The polyphenols (CPAE II) were extracted from the dichloromethane extract of the pyroligneous acid, R. apiculata by simultaneous acid base and solvent extraction method as discussed by the authors.
Journal ArticleDOI
Comparative evaluation of the antioxidant capacity of smoke flavouring phenols by crocin bleaching inhibition, dpph radical scavenging and oxidation potential
TL;DR: In this paper, the antioxidant capacity of the main phenolic compounds present in wood smoke and smoke flavourings used in the food industry was investigated by three methods, based on a kinetic and thermodynamic approach: the bleaching of the carotenoid crocin, the scavenging of the DPPH radical, and the determination of the oxidation potential.
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Study of the volatile composition of an aqueous oak smoke preparation
TL;DR: In this article, an aqueous smoke flavouring from oak (Quercus sp.) sawdust was obtained on the laboratory scale and its qualitative and quantitative composition was studied by gas chromatography.
Journal ArticleDOI
Alicyclobacillus spoilage and isolation--a review.
TL;DR: This review includes a discussion of the various media that have been reported in the literature for the use in the isolation and enumeration of members of the genus Alicyclobacillus.
References
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Book
Lignans : chemical, biological, and clinical properties
David C. Ayres,John D. Loike +1 more
TL;DR: The structure and biological properties of lignans have been determined through isolation, purification and initial characterisation and the structure was determined through determination of structure by a number of methods.
Journal ArticleDOI
Formation of the main degradation compound groups from wood and its components during pyrolysis
TL;DR: In this paper, the thermochemical behavior of pine wood and its main structural constituents (cellulose, hemicelluloses, and lignin) was investigated by pyrolysis-gas chromatography with mass-selective detection (Py-GC/MSD).
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Synthesis and evaluation of stilbene and dihydrostilbene derivatives as potential anticancer agents that inhibit tubulin polymerization.
TL;DR: An array of cis-, trans-, and dihydrostilbenes and some N-arylbenzylamines were synthesized and evaluated for their cytotoxicity in the five cancer cell cultures and the most potent of the new compounds, both as a tubulin polymerization inhibitor and as a cytotoxic agent, was (Z)-1-(4-methoxyphenyl)-2-(3,4,5-trimethoxiphenyl)ethene.
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Antioxidant Properties of Phenolic Lignin Model Compounds
TL;DR: Antioxidant activities of phenolic lignin model compounds were determined by measurements of inhibition rate constants (kinh) during inhibited peroxidation of styrene in chlorobenzene initiated by azobisisobutyrylnitrile with known rates of initiation.