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Articles by A.K. Azad
Total Records ( 3 ) for A.K. Azad
  M.Y. Sarker , A.K. Azad , M.K. Hasan , A. Nasreen , Q. Naher and M. A. Baset
  The effect of plant spacing and different sources of nutrient was studied on the growth and yield of cabbage. The experiment was conducted with two plant spacings (60cm x 45 cm, 60cm x 60 cm) and four levels of nutrients (no fertilizer, organic manures, organic + inorganic fertilizers and inorganic fertilizers) in RCB design. Plant spacing had marked influence on the growth parameters like number of loose leaves per plant and diameter of head. The plant under closer spacing produced high marketable yield (64.38t ha -1) than wider spacing. Plants those received organic + inorganic fertilizers produced the highest marketable yield (79.01 t ha -1). The treatment combination of 60 cm x 45 cm spacing with organic + inorganic fertilizers gave the highest marketable yield (86.68 t ha -1) of cabbage.
  A.K. Azad , Fauzia Hafiz and S.M. Badiar Rahman
  As rapid microbiological reports of foods and food related products for E. coli bacteria presence are of prime importance. Rapid assays for E.coli were developed by using the compound 4-methyleumbelliferyl glucuronide (MUG), which is hydrolyzed by glucuronidase (GUD) to yield a fluorogenic product. The production of glucuronidase was limited to strains of E.coli in the family of Enterobacteriaceae. For rapid confirmation of the presence of E.coli in most probable number tubes (MPN), MUG was incorporated into lauryl tryptose broth at a final concentration of 100 μg ml-1. Results of both the presumptive test (gas formation) and the confirmed test (fluorescence) for E.coli were obtained from tap water and raw milk samples after incubation of 6-24 hours at 450C, Approximately 94% of the tubes showing both gas production and fluorescence contained fecal coliforms (they were positive in EC broth incubated at 450C). Few false positive reactions were observed. The lauryl tryptose broth MUG most probable numbers assay was superior to conventional study for E. coli detection. The fluorogenic assay was sensitive and rapid but conventional study was time consuming and laborious.
  A.K. Azad , Mohd. Aminul Islam and W.S. Wan Mohd Azizi
  The study was aimed to evaluate the pharmaceutical properties of few selected generic products of ranitidine hydrochloride tablets available in retail pharmacies of Bangladesh. We collected 10 nationally manufactured generic ranitidine HCl tablets from local Market who followed USP specifications and examined their physical parameters and potency to check their compliance with the USP. The intention was to evaluate the quality of this pharmaceuticals after 20 years of implementing the National Drug Policy in 1982. All tested ranitidine tablet samples (Rt1-Rt10) were selectively collected from local retail pharmacies in Savar, Dhaka-1344, Bangladesh. Before purchasing the samples, their physical appearance, name of manufacturer, batch number, date of manufacturing, expiry date, manufacturing license number and Maximum Retail Price (MRP) were properly checked. The various parameters of the selected samples such as diameter, shape, size, weight variation, thickness, hardness, disintegration, dissolution and potency have been determined according to the American Pharmacopoeia USP 27 requirements. It was found that all ten selected products met the USP 27 specifications. The differences in hardness among the tablets were significant. Interestingly, dissolution profiles of some tablet products were not weighty different from one another, whereas those of tablets were significantly different. However, all brands complied with USP 27. It could be concluded that the selected ranitidine HCl tablets met the required USP specifications and are considered quality products in terms of the mentioned parameters.
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