Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by S. Abd-Aziz
Total Records ( 3 ) for S. Abd-Aziz
  D. C. Ang , S. Abd-Aziz , H. M. Yusof , M. I. A. Karim , A. Ariff , K. Uchiyama and S. Shioya
  Rice α-amylase and glucoamylase produced by S. cerevisiae YKU 107 and YKU 131, respectively were partial purified using anion exchange chromatography and characterised. The optimum active conditions for -amylase was at pH 5.0 and temperature of 50°C. It was capable in hydrolysing more than 85% of potato, rice, cassava and sago starch, however, it could only hydrolysed 64% of corn starch. Glucoamylase was optimally active at pH 5.5 and temperature of 55°C. Glucoamylase could hydrolyse more than 70% of cassava, sago and potato starch, it also hydrolysed more than 65% of corn and rice starch. Both of the enzymes were not severely affected by the changes of ionic strength of acetate buffer at molarity lower than 0.20 M.
  K. H. Kok , M.I.A. Karim , A. Ariff and S. Abd-Aziz
  Batch sorption equilibrium experiments using biomass of Aspergillus flavus as biosorbent were conducted using shake flask experiment. Experiments were carried out to investigate the effect of metal concentration, biosorbent concentration, pH and temperature on biosorption of cadmium, copper and lead in tri-metals system. Results showed the presence of other cations in the solution that affected the uptake of the selected metal by the biosorbent. It has been suggested that direct ionic competition occurred within the same class of divalent cations and alteration of the solution chemistry.
  K.H. Kok , M.I.A. Karim , A.B. Ariff and S. Abd-Aziz
  Study on the feasibility of using Aspergillus flavus cells as biosorbent to remove lead from solution was carried out using a 500mL shake flask. The effect of metal concentration, biosorbent concentration, temperature and pH on lead adsorption were investigated. The maximum uptake of lead by Aspergillus flavus cells was 144.5 mg lead/g dry cell. The highest uptake of lead by this biosorbent was occurred at pH 4 and temperature 400C.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility