African Journal of
Biochemistry Research

  • Abbreviation: Afr. J. Biochem. Res.
  • Language: English
  • ISSN: 1996-0778
  • DOI: 10.5897/AJBR
  • Start Year: 2007
  • Published Articles: 407

AJBR Articles

Analysis of phenolic compounds in Ugandan sweet potato varieties (NSP, SPK AND TZ)

August 2007

      Sweet potato varieties: Nsp, Tz and Spk obtained from Uganda were used in this study. Several phenolic compounds were identified on the basis of their mass spectra in full scan mode and the pattern of their fragmentation. The major compounds found were caffeoylquinic acid, dicaffeoylquinic acid, coumaroylquinic acid,...

Author(s): Agnes M. Nandutu, Mike Clifford and Nazlin K. Howell

Altered plasma hexose sugar metabolism in sickle cell anaemia

August 2007

  Theoretical suggestion that the metabolism and plasma levels of some hexoses (glucose and fructose) in sickle cell anaemia could be altered was investigated.  The levels were determined for 35 normal (HbAA) and for the three sickle cell states (32 HbAS; 35 HbSS, and 33 HbSS-in-crisis, HbSSc). The enzymatic glucose-oxidase method was employed in glucose estimation. The reaction of fructose with...

Author(s): Chidi G. Osuagwu and Chika U. Mbeyi

Numerical simulation of the internal vibrations of COOH group in amino-salicylic acids

July 2007

  Our present work reports the IR spectra of amino substituted salicylic acids recorded by FTIR spectrometer and also simulated theoretically. The simulation was performed using GF matrix and AM1, PM3, DFT method. In this work, the following steps were taken: optimizing the geometry, computing the IR spectra and comparing it with experimental spectra. Assuming Cspoint symmetry, vibrational assignments for the...

Author(s):   Y. P. Singh, Ratnesh Das and R. A. Singh    

Removal of iron, zinc and magnesium from polluted water samples using thioglycolic modified oil-palm fibre

July 2007

  Various kinds of agro and wood based fibres can be used to filter both trace and heavy metals from contaminated solutions. The efficacy of thioglycolic acid treated oil-palm fibre was investigated in this study. The result showed maximum absorptions (at pH = 6) of 83.6, 75.6 and 50.8% for Fe++, Zn++ and Mg++ respectively in the Southern Point (SP) samples. Similarly, 79.1, 78.3 and 77.5% for Fe++,...

Author(s): J. O. Akaninwor, M. O. Wegwu and I. U. Iba

Some valuable fatty acids exposed from wedge clam Donax cuneatus (Linnaeus)

July 2007

  The fatty acid composition of the wedge clam Donax cuneatus collected from the sandy beach of Cuddalore (southeast coast of India) was determined. In the analysis, the fatty acid profile by gas chromatography revealed the presence of higher amount of saturated fatty acids (35.28%) than mono (12.71%) and polyunsaturated (11.72%) fatty acids. Among the saturated fatty acids, the stearic acid...

Author(s): Annaian Shanmugam, Chendur Palpandi and Subramanium Sambasivam

Occurrence of malondialdehyde and N- nitrosamines and their precursors in some Nigerian ice creams, yogurts, meat and fish species

June 2007

  The malondialdehyde (a deleterious by-product of lipid peroxidation) and N-nitrosamines and their precursors (nitrate and nitrite) content of seven (7) and three (3) brands of Nigerian yogurts and ice-creams respectively as well as that of some meat and fish samples were determined using chemical methods. Malondialdehyde and nitrite were estimated spectrophotometrically, nitrate after reduction to nitrite...

Author(s): Okafor, P. N, Nwosu, O, Chukwu, J, Agbayi, J and Maduagwu, E. N

Effect of carbon sources on cellulase (EC 3. 2. 1. 4) production by Penicillium chrysogenum PCL501

June 2007

  The effects of glucose, crystalline cellulose and sawdust of Mitragyna cilata on the growth and cellulase production, inferred from cellulase (EC 3. 2. 1. 4) activity, of Penicillium chrysogenum PCL501 was determined. Glucose-containing media gave the highest mycelia weight of 1.78 mg mL-1 in 120 h of incubation. This is about 3.5 – 4.5 times the maximum weights of 0.51 and 0.40...

Author(s): Nwodo-Chinedu, S., Okochi, V. I., Smith, H. A., Okafor, U. A., Onyegeme-Okerenta, B. M. and Omidiji, O. 

Page 9 of 9, showing 7 records out of 407 total, starting on record 401, ending on 407