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Articles by Zahid Ali Butt
Total Records ( 2 ) for Zahid Ali Butt
  Maqsood Ahmad , Amin U. Khan , Abdul Wahid , Zahid Ali Butt , Muhammad Farhan and Farooq Ahmad
  Water samples were collected from 18 sampling sites including the three hospitals their Municipal Wastewater (MWW) drains receiving the hospital sewage and from the river Ravi. The occurrence and fate of ofloxacin (OFLX) and resistance of Vibrio cholerae due to the presence of OFLX was studied. It was found that 16 out of 18 sites were contaminated by the antibiotic. Highest concentration was observed in hospital wastewater (HWW) ranged from 7.31 to 39.13 μg/L and amount of OFLX in the municipal wastewater before mixing the hospital sewage was 0.26 to 0.43 μg/L and after mixing it raised up to 0.54 to 1.29 μg/L. At the entering point of the MWW drains to the river, concentration 0.44 and 0.31 μg/L were observed in the two drains carrying the HWW to the river, respectively. Upstream concentration from the point of entering of the first and second drains was 0.14 and 0.22 μg/L while the downstream concentration was 0.18 and 0.37 μg/L, respectively. The antibiotic was not detected from both the samples collected from the entering point of the river to the city and before entering of the first MWW drain, whereas the after mixing the first drain the concentration 0.043 μg/L was observed. The bacteria isolated from HWW, MWW drains and the river Ravi were 83% 66% and 83% resistant to OFLX, respectively.
  Farooq Ahmad , Saqlain Abbas , Zahid Ali Butt , Adnan Skhawat Ali , Rashid Mahmood , Maqsood Ahmad , Muhammad Farhan , Abdul Wahid , Muhammad Nawaz and Aqsa Iftikhar
  In this study bacterial flora of meat in chicken Shawarma (meat) were investigated from five different regions of Lahore. Samples were taken from internal and external part of Shwarma. The contamination was present in both external and internal part of meat. But external part was found to be little more contaminated as compared to internal part. Analysis of microbes includes E. coli, Salmonella, Aerobes and Coliforms. Microbs were found in order of Aerobes > E. coli > Salmonella there is not too much variation of contamination in different regions but there is variation among the number of bacteria. In every part Aerobes were in greater number as compared to E. coli and Salmonella. Shawarma analyzed from the Site III was more contaminated as compared to other sites. The external part of the product showed more microbial load as compared to internal part.
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