Publications by authors named "Shafi M Nizamani"
Article Synopsis
- Phthalate esters (PAEs), commonly used as plasticizers, pose serious environmental health risks as some are suspected mutagens and carcinogens due to their leaching into the environment during production and disposal.
- A study identified 10 types of PAEs leaching from various drinking sources, with significant amounts found in water cooler and baby feeder samples, particularly noting that boiling reduced leaching by 26-54%.
- Additionally, a biodegradation experiment using Bacillus thuringiensis showed it effectively degraded 75-96% of the leached PAEs under optimal conditions, highlighting the need for urgent remediation strategies.
Banana peel: an effective biosorbent for aflatoxins.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
May 2016
This work reports the application of banana peel as a novel bioadsorbent for in vitro removal of five mycotoxins (aflatoxins (AFB1, AFB2, AFG1, AFG2) and ochratoxin A). The effect of operational parameters including initial pH, adsorbent dose, contact time and temperature were studied in batch adsorption experiments. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and point of zero charge (pHpzc) analysis were used to characterise the adsorbent material.
View Article and Find Full Text PDFIn the present study, milk samples including raw and ultra-high temperature (UHT) processed milk were analyzed for pesticide residue levels, including five pesticides, viz chloripyrifos, endosulfan (α and β), profenofos and bifenthrin by gas chromatography microelectron capture detector (GC-μECD) after extraction by QuEChERS method. Further confirmation of the pesticide residue was done by GC-MS. The pesticide residual level in raw and UHT milk samples (n = 70) was determined in the range of 0.
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- Aflatoxin M1 (AFM1) is a harmful substance found in milk due to lactating animals consuming contaminated feed, and the study focused on its presence in milk from Sindh, Pakistan.
- In the investigation, 96.43% of milk samples tested positive for AFM1, with an average contamination level of 0.38 μg/L, surpassing safety limits set by both the European Commission and U.S. regulations.
- The estimated daily intake of AFM1 for adults was found to be 3.1 ng/kg of body weight, raising concerns about potential health risks.
Background: Mycotoxin-contaminated feed is very dangerous for the growth and even life of poultry. The objective of the current study was to investigate the efficacy of ultra-violet irradiation for decontamination of ochratoxin A (OTA) in spiked and naturally contaminated poultry feed samples. Spiked and naturally contaminated feed samples were irradiated with ultra-violet light (UV) at distance of 25 cm over the feed samples.
View Article and Find Full Text PDFMelamine is a nitrogenous chemical substance used principally as a starting material for the manufacture of synthetic resins. Due to its very high proportion of nitrogen melamine has been added illegitimately to foods and feeds to increase the measured protein content, which determines the value of the product. These issues prompted private as well as governmental laboratories to develop methods for the analysis of melamine in a wide variety of food products and ingredients.
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