The DPPH radical-scavenging abilities of the naturally occurring phenolic acid, 2,3,4-trihydroxybenzoic acid, and its methyl ester were evaluated. Both compounds in acetonitrile scavenged as many as four radicals compared to three or fewer radical consumption in acetone or ethanol. Only the ester showed relatively high ability in methanol. Oxidation with o-chloranil in acetonitrile resulted in ...

This is the first comprehensive study of the genetic analysis of the majority of oleoresin components of slash pine (Pinus elliottii). Pine oleoresin, the resin secreted from the pine tree, is a raw material widely used in industrial products. The objective of this study was to explore the genetic variation and correlation between the major oleoresin components of 50 open pollinated families of...

0016-2361/$ see front matter 2011 Elsevier Ltd. A doi:10.1016/j.fuel.2011.03.042 Abbreviations: CFME, chicken fat methyl esters; American society of testing and materials; KOH, p sodium hydroxide; KOMe, potassium methoxide; NaO ⇑ Corresponding author at: Department of Automo Kocaeli University, 41380 Kocaeli, Turkey Tel.: +90 3032203. E-mail addresses: [email protected], Canakci). In t...

The exact structure of the type-I11 isomer penta-, hexaand hepta-carboxylic porphyrinogens that are involved as intermediates in the conversion of uroporphyrinogen I11 into coproporphyrinogen 111 have been elucidated (Jackson et al., 1976). The corresponding porphyrins are to be found in the urine of patients suffering from the porphyrin-overproduction diseases symptomatic porphyria and congeni...

Biosurfactants are surface-active compounds produced by a wide variety of diverse microorganisms. The structural diversity biosurfactants depends on microorganisms and growth conditions (such as substrate pH). unique structure provides properties for specific applications. Biosurfactant production still needs to be explored using producing the biosurfactant structures. Production characterizati...

During storage, soybean kernels can be attacked by insects, which are preventively controlled with insecticides. Information on the dissipation of insecticide residues is crucial to know their final concentrations in food and establish waiting periods necessary for consumption without health risks, determine minimum period comply national international standards. The aims this study were quanti...