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Articles by M. Abu Sayeed
Total Records ( 3 ) for M. Abu Sayeed
  M. Abdul Alim Al-Bari , M. Abu Sayeed , Alam Khan , M. Robiul Islam , Proma Khondokar , M.M. Sazedur Rahman and M. Anwar Ul Islam
  Ethyl acetate extract from new actinomycetes, Streptomyces maritimus, showed good antibacterial and antifungal activities against a total of 14 bacteria (5 Gram positive plus 9 Gram negative) and 8 fungi. The Minimum Inhibitory Concentrations (MIC) were determined and found to be 16 μg mL-1 against Bacillus subtilis, Staphylococcus aureus, Shigella dysenteriae and Aspergillus flavus while 32 μg mL-1 against Salmonella typhi, Candida albicans and Aspergillus niger.
  M. Abdul Alim Al-Bari , M. Abu Sayeed , M.M. Sazedur Rahman and M. Anwar Ul Islam
  The toxicological studies of an antimicrobial compound and ethyl acetate extract isolated from a culture broth of a new strain of Streptomyces bangladeshiensis (collected from soil) were performed on long Evan?s rats. The studies included monitoring the gross general observation such as changes of body weight, checking hematological profiles and biochemical parameters of blood such as SGOT, SGPT, serum alkaline phosphatase, creatinine, uric acid, urea and the histopathology of the liver, kidney, heart, lung, spleen. The results of hematological and biochemical tests showed that the compound AA-2 and the extract did not cause any considerable changes in the values of the parameters observed in control group rats.
  M. Abbas Ali , M. Abu Sayeed and Nurul Absar
  Three lectins CSL-1, CSL-2 and CSL-3, purified from the Cassia fistula seeds were tested for their antibacterial activities against 14 pathogenic bacteria using 30 μg/disc. The lectin CSL-3 was found to be active against all of the bacterial strains and showed strong activity against Bacillus megaterium, Streptococcus β-haemolyticus and Shigella boydii. The lectin CSL-2 showed poor activity against most of the bacterial strains and has strong activity against only Streptococcus β-haemolyticus. But the lectin CSL-1 was found to be inactive against all the bacterial strains except Streptococcus β-haemolyticus and Sarcina lutea. All the lectins affect significantly the mortality rate of brine shrimp. Among them CSL-2 was found to be highly toxic (6.68 μg ml-1) followed by CSL-1 (10.47 μg ml-1) and then CSL-3 (13.33 μg ml-1).
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