Several main metabolites of benzo[a]pyrene (BaP) formed by Penicillium chrysogenum, Benzo[a]pyrene-1,6-quinone (BP 1,6-quinone), trans-7,8-dihydroxy-7,8-dihydrobenzo[a]pyrene (BP 7,8-diol), 3-hydroxybenzo[a]pyrene (3-OHBP), were identified by high-performance liquid chromatography (HPLC). The three metabolites were liable to be accumulated and were hardly further metabolized because of their to...

Single-stranded DNA of coliphage M13mp8 was treated with the oxidizing agent, KMnO4, under conditions that selectively form cis-5,6-dihydro-5,6-dihydroxythymine (thymine glycol). Treatment of DNA with 0.7 and 1.4 mM KMnO4 introduced approximately 200 and 400 thymine glycol residues, respectively, per genome. When these DNAs were used to transform Escherichia coli, it was observed that phage sur...

A hybrid of holey graphene and Mn3O4 is prepared by a one-step process, in which the formation of a holey structure is accompanied with Mn3O4 nanoparticles through a high temperature reaction between graphene oxide sheets and KMnO4. Holey graphene and Mn3O4 collaboratively attributed to the enhanced catalytic activity and efficiency towards the oxygen reduction reaction.

δ-MnO2/o-MWCNTs were synthesized by coating MnO2 spontaneously on oxidized multi-walled carbon nanotubes via simple immersion of the o-MWCNTs into KMnO4 solution. This catalyst comprising the outer region of catalytic MnO2 and the inner region of highly conductive o-MWCNTs enhanced photocatalytic water oxidation activity.

Climacteric fruits (banana, apple, pear, avocado, garden egg and mango) are actually eaten when ripen; but is not palatable ripens decreases demand. Influence of packaging material rates potassium permanganate (KMnO4) on postharvest ripening was evaluated to access the interactive effect KMnO4 in delaying ripening. Two materials; polythene jute bags, at 0g, 3g, 6g 9g were used. The experiment a...

Limited postharvest life of tomato fruit is due to its highly perishable nature. Hypobaric pressure a new emerging hurdle technology usually used up 100 kPa for the preservation fruits and vegetables. In this study, an integrated approach hypobaric pressures (40 50 kPa) sponge-dipping potassium permanganate (KMnO4) was designed extension fruits. Fruits were treated with either 400 ppm KMnO4, or...

In this paper, a novel procedure is proposed for comprehensively recovering zinc fluoride (ZnF2), manganese fluorides [MnFx(x = 2, 3)], dioxide (MnO2), and carbon powder from the electrode of spent alkaline batteries. Firstly, hydrofluoric acid (HF) leaching conducted on Secondly, potassium permanganate (KMnO4) introduced into leachate to selectively precipitate (Mn) ions recover MnO2. Subseque...

AIM To study the effect of preputial washing on bacterial load, preservability and semen quality in Murrah buffalo bulls. MATERIALS AND METHODS A total of 36 collections of three Murrah buffalo bulls maintained at Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, were collected at weekly intervals from each bull without preputial washing and latter ejaculate...

Transcription of the phage Mu com/mom operon is trans-activated by another phage gene product, C, a site-specific DNA binding protein. To gain insight into the mechanism by which C activates transcription, we carried out footprinting analyses of Escherichia coli RNA polymerase (= RNAP) binding to various com-lacZ fusion plasmids. KMnO4-sensitive sites (diagnostic of the melted regions in open-c...

Comproportionation reactions between MnCl2 and KMnO4 in the presence of arsonate or phosphonate ligands promote the cation-assisted assembly of high-nuclearity, wheel-shaped or toroidal {Mn8} () and {Mn24} () complexes; the closely corresponding reaction systems provide insights into the complexation behaviour of homologous phosphonate/arsonate ligand species.