New N2O2 donor type Schiff base has been designed and synthesized by condensing acetoacetanilido-4-aminoantipyrine with 2-aminobenzoic acid in ethanol. Solid metal complexes of the Schiff base with Cu(II), Ni(II), Co(II), Mn(II), Zn(II), VO(IV), Hg(II) and Cd(II) metal ions were synthesized and characterized by elemental analyses, magnetic susceptibility, molar conduction, fast atom bombardment...

Five microorganisms, namely Aspergillus niger CECT 2700, A. niger CECT 2915, A. niger CECT 2088, Aspergillus terreus CECT 2808, and Rhizopus stolonifer CECT 2344, were grown on corncob to produce cell wall polysaccharide-degrading enzymes, mainly xylanases, by solid-state fermentation (SSF). A. niger CECT 2700 produced the highest amount of xylanases of 504 ± 7 U/g dry corncob (dcc) after 3 day...

The spiroketal (E)-conophthorin has recently been reported as a semiochemical of the navel orangeworm moth, a major insect pest of California pistachios and almonds. Conophthorin and the isomeric spiroketal chalcogran are most commonly known as semiochemicals of several scolytid beetles. Conophthorin is both an insect- and plant-produced semiochemical widely recognized as a nonhost plant volati...

La fresa (Fragaria x ananassa) es un alimento exquisito, que proporciona beneficios a la salud, por lo frutilla de mayor producción y exportación en México. Sin embargo, altamente perecedera, susceptible sufrir daños poscosecha, Botrytis cinerea Rhizopus stolonifer, entre otros. El uso plaguicidas precosecha estrategia control estos patógenos; no obstante, está documentado los dañan salud human...

Most often, patronage of open markets attracts huge populations buyers in Nigeria. These are numerous each state the country but largely share similar characteristics poor hygiene and sanitation. Health Impact Assessment (HIA) was conducted at Shasha market, Oba-Ile, Akure to assess health implication markets, an emerging public concern. Air, water selected food samples were taken for microbial...

Lectins are carbohydrate-binding proteins with agglutination properties. There is a continuous interest in lectins due to their biological properties that can be exploited for medicinal and therapeutic purposes. The objective of this study was to isolate and characterize lectin activity in Texas Live Oak (Quercus fusiformis). More specifically, the study aimed to determine the lectin’s blood gr...

Four copper(II) complexes have been prepared using macrocyclic ligands. The macrocyclic ligands have been synthesized by the condensation reaction of diethyl phthalate with Schiff bases derived from o-phenylene diamine and Knoevenagel condensed β-ketoanilides (obtained by the condensation of acetoacetanilide and substituted benzaldehydes). The ligands and copper complexes have been characterize...

Saprophytic and corprophilous fungal flora on dung samples of different hybrid cow in Lawspet area of puducherry, India was studied by moist chamber method during 2014-15. During the isolation and identification of fungi from hybrid cow dung samples, 16 species under 7 genera of hyphomycetous fungi were isolated with 44 isolates from the dung samples. Aspergilli and penicilli were dominated amo...

Biotransformation of antimalarial drug artemisinin by fungi Rhizopus stolonifer afforded three sesquiterpenoid derivatives. The transformed products were 1α-hydroxyartemisinin (3), 3.0%, a new compound, 10β-hydroxyartemisinin, 54.5% (4) and deoxyartemisinin (2) in 9% yield. The fungus expressed high-metabolism activity (66.5%). The chemical structures of the compounds were elucidated by 1D, 2D ...

Air filters support fungal growth, leading to generation of conidia and volatile organic compounds, causing allergies, infections and food spoilage. Filters that inhibit fungi are therefore necessary. Zinc oxide (ZnO) nanoparticles have anti-fungal properties and therefore are good candidates for inhibiting growth. Two concentrations (0.012 M and 0.12 M) were used to coat two types of filters (...