نتایج جستجو برای: 1 3 diethyl 2 thiobarbituric acid
تعداد نتایج: 4935260 فیلتر نتایج به سال:
BACKGROUND There are potential adverse health risks to the mother and fetus from exposure to pesticides. Thus, studies of exposure to pesticides among pregnant women are of interest as they will assist with understanding the potential burden of exposure globally, identifying sources of exposure, and designing epidemiology studies. METHODS We measured urinary concentrations of the insect repel...
Four electrophoretic variants of chloramphenicol acetyltransferase (types A, B, C and D) found in chloramphenicol-resistant staphylococci were purified by affinity chromatography. Michaelis constants and the kinetics of inactivation with a variety of reagents for the four variants are virtually identical. Their similar amino acid compositions and near identical N-terminal sequences suggest a hi...
This study evaluates the effects of gelatin coating enriched with ethanolic propolis extract (PE) at 1%, 2% or 3% (w/v) on quality parameters pork meat during storage 2 °C. Physical (pH, weight loss, color) and chemical (percentage contents metmyoglobin (MetMb), along thiobarbituric acid reactive substances (TBARS)) were measured, microbiological (total aerobic plate count (TAPC)) analysis, as ...
Chiral hydroxyl monophosphane 3 [(2S,3S,4S,5S)-3,4-dihydroxy-2, 5-dimethyl-1-phenylphospholane] and bisphospholanes 5a [1,2-bis[(2S, 3S,4S,5S)-3,4-dihydroxy-2,5-dimethylphospholanyl]benzene] and 5b [1, 2-bis[(2S,3S,4S,5S)-2,5-diethyl-3,4-dihydroxyphospholanyl]benzene] were synthesized from readily available D-mannitol in high yields. Strategies for protection and deprotection of OH-groups in th...
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