Purification and Some Properties of Rubber Seed Lipoxygenase

Lipoxygenase was extracted from rubber seed and purified by ammonium sulphate precipitation, gel filtration on Sephadex G – 25 and ion – exchange chromatographies on DEAE – cellulose columns. The enzyme was purified 78 fold and 38.56% …

  MN Anokwulu

Effect of Sex, Age, Starvation and Feeding, Isolation and Crowding and Oviposition on Longevity of Zonocerus Variegatus (Orthoptera: Pyrgomorphidae)

The effects of starvation, feeding, sex and oviposition on the longevity of adult Zonocerus variegates L. in isolation or in groups was investigated in the laboratory. Females lived significantly longer than males either in isolation o…

  WA Muse

Preliminary studies on the endo-xylanase and acetyl esterase of Clostridium thermohydrosulfuricum (JW 102)

Clostridium thermohydrosulfuricum (JW102) produced low levels of xylanase in mineral medium containing yeast extract and beechwood xylan. Production of xylanase was highest at growth temperatures of 62 – 64oC. Both xylan and xylose sup…

  IM Ezeonu, AN Moneke, SKC Obi

Correlation of Lipid Peroxidation Index With Sickle Haemoglobin Concentrations In Malaria-Positive and-Negative Statuses of AA, AS and SS Individuals from the University of Nigeria, Nsukka Community

The incidences of different haemoglobinopathy genes were determined in 6406 volunteers from the University of Nigeria, Nsukka, community. Results revealed 3.81% and 29.04% incidences of sickle cell anaemia (SCA) and Sickle gene trait r…

  PN Uzoegwu, AE Onwurah

Phytoplankton Production in Ogelube Lake Opi,

The rate of phytoplankton production in Ogelube lake, Opi was investigated for one year using oxygen light and dark bottle technique. Water samples were collected from a mid-lake location at three depths and incubated in situ for four …

  NO Nweze

Effects of Nominal Exposure to Petrol on Organ Pathogenesis and Histopathology of Rats

Ten (10) male Wistar rats of average body weight 160 g were nominally exposed to petrol for seven (7) days and the effect of this on the organs:- brain, lungs, spleen, kidneys and liver were investigated. Another set of 10 male Wistar …

  O Obidoa, E Eirewele, LUS Eseanyika, SVO Shoyinka

In Vivo Metabolism in Rats of Cyanide -Containing Compounds From Cassava Leaves

Qualitative analysis of ethanol extracts of cassava by double dimensional thin-Iayer chromatography indicated the presence of novel cyanide-containing compounds, which were shown chemically to be cyanohydrin (Rf, 0.25) ands nitrile (Rf…

  PN Okafor

An Assessment of the Phytochemical and Nutrient Composition of the Pulverized Root of Cissus Quadrangularis

The phytochemical and nutrient composition of the pulverized dried root of Cissus quadrangularis (an edible Nigerian vegetable) were determined. Phytochemical tests on the plant revealed the presence of alkaloids, saponins, tannins, fl…

  OC Enechi, I Odonwodo

Hybridization of Palm Wine Yeasts ( Saccharomyces Cerevisiae) with Brewers Yeast by Protoplast Fusion

Haploid auxotrophic strains of Saccharomyces cerevisiae were selected from palm wine and propagated by protoplast fusion with Brewers yeast. Fusion resulted in an increase in both ethanol production and tolerance against exogenous etha…

  OU Ezeronye

An Efficient Protocol For Medium - Term Conservation of the Aerial Yam, Dioscorea Bulbifera L. in Vitro

An efficient protocol for medium-term conservation of the aerial yam, Dioscorea bulbifera is hereby reported. Meristem and nodal segments from five-week old plants cultured in half strength MS or B5 medium containing 12 per cent sucros…

  CEA Okezie