In this study, oil palm empty fruit bunch (OPEFBF) was pretreated with alkali, and lignin was extracted for further degradation into lower molecular weight phenolic compounds using enzymes and chemical means. Efficiency of monomeric aromatic compounds production from OPEFBF lignin via chemical (nitrobenzene versus oxygen) and enzymatic [cutinase versus manganese peroxidase (MnP)] approaches was...

We compared five methods for the determination of total and direct bilirubins in serum samples from normal controls, subjects with Gilbert's syndrome, and serum pools containing about 50 and 150 mg of total bilirubin per liter. The Kodak Ektachem method and a diazotized sulfanilic acid method with 0.15 mmol/L sodium nitrite concentrations are the only methods that gave accurate direct bilirubin...

1 Department of Chemistry, Hislop College, Nagpur-440001, India. ________________________________________________________________________________________ Abstract: This paper presents experimental data for densities (ρ), viscosities (η) and ultrasonic speeds (U) of pure toluene (TOL), chlorobenzene (CB), bromobenzene (BB) and nitrobenzene (NB) and of their binary liquid mixtures at temperature ...

Changes in molecular forms of hepatic cytosolic glutathione S-transferases (GST) during rat chemical hepatocarcinogenesis were investigated. GST activities toward 1-chloro-2,4-dinitrobenzene and 1,2-dichloro-4-nitrobenzene increased with the increased area of gamma-glutamyltranspeptidase-positive foci and hyperplastic nodules induced by diethylnitrosamine followed by 2-acetylaminofluorene plus ...

Halonitrobenzenes (HNBs) are a class of molecules that are highly toxic to human health and the ecological environment. Thus, effective and efficient approaches capable of monitoring and detecting HNBs are greatly desired. We report herein a simple and sensitive method for the detection of HNBs. The detection was based on the indium tin oxide (ITO) electrodes modified with a binary assembly of ...

In this work, we present a complete mechanistic picture of the non-radiative decay of the mono-substituted aromatic compound nitrobenzene from the bright singlet state to the electronic ground state. This mechanism involves internal conversion (IC) and inter-system crossing (ISC) along three dominating internal coordinates of the nitro group and consistently explains the experimental findings. ...