Publications by authors named "S Pagadala"
Article Synopsis
- This study investigates the effects of different cucumber cultivation practices on food safety risks, specifically the presence of harmful bacteria like E. coli, by conducting field trials over two years.
- Results showed that while certain bacteria were less abundant on fruit in the first year, increased rain in the second year led to higher bacterial levels on straw-mulched cucumbers compared to those grown on bare ground.
- The analysis revealed that vertical growing did not limit E. coli dispersal to cucumbers, and some E. coli strains found on fruit were unrelated to those from soil, suggesting alternate sources of contamination, potentially including the straw used for mulching.
Small- and medium-size farms in the mid-Atlantic region of the United States use varied agricultural practices to produce leafy greens during spring and fall, but the impact of preharvest practices on food safety risk remains unclear. To assess farm-level risk factors, bacterial indicators, Salmonella enterica, and Shiga toxin-producing Escherichia coli (STEC) from 32 organic and conventional farms were analyzed. A total of 577 leafy greens, irrigation water, compost, field soil, and pond sediment samples were collected.
View Article and Find Full Text PDFIn the mid-Atlantic region of the United States, small- and medium-sized farmers use varied farm management methods and water sources to produce tomatoes. It is unclear whether these practices affect the food safety risk for tomatoes. This study was conducted to determine the prevalence, and assess risk factors for Salmonella enterica, Shiga toxin-producing Escherichia coli (STEC) and bacterial indicators in pre-harvest tomatoes and their production areas.
View Article and Find Full Text PDFβ-Lactamases are the major reason β-lactam resistance is seen in Gram-negative bacteria. To combat this resistance mechanism, β-lactamase inhibitors are currently being developed. Presently, there are only three that are in clinical use (clavulanate, sulbactam and tazobactam).
View Article and Find Full Text PDFSeven blue crab processing plants were sampled to determine the prevalence and sources of Listeria spp. and Listeria monocytogenes for two years (2006-2007). A total of 488 raw crabs, 624 cooked crab meat (crab meat) and 624 environmental samples were tested by standard methods.
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