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The Threat Of Antibiotic Resistance In Changing Climate, Aliyar Cyrus Fouladkhah, Brian Thompson, Janey Smith Camp May 2020

The Threat Of Antibiotic Resistance In Changing Climate, Aliyar Cyrus Fouladkhah, Brian Thompson, Janey Smith Camp

Agricultural and Environmental Sciences Faculty Research

As the earliest form of life, microorganisms have elaborate mechanisms for adapting to changes in environmental conditions.


Fate And Biofilm Formation Of Wild-Type And Pressure-Stressed Pathogens Of Public Health Concern In Surface Water And On Abiotic Surfaces, Md Niamul Kabir, Sadiye Aras, Sabrina Wadood, Shahid Chowdhury, Aliyar Cyrus Fouladkhah Mar 2020

Fate And Biofilm Formation Of Wild-Type And Pressure-Stressed Pathogens Of Public Health Concern In Surface Water And On Abiotic Surfaces, Md Niamul Kabir, Sadiye Aras, Sabrina Wadood, Shahid Chowdhury, Aliyar Cyrus Fouladkhah

Agricultural and Environmental Sciences Faculty Research

Since the historic outbreak near Broad Street in London, which serves as cornerstone of modern epidemiology, infectious diseases spread in surface and sub-surface water has been a persisting public health challenge. The current study investigated persistence of wild-type and pressure-stressed Listeria monocytogenes, Escherichia coli O157:H7, and non-typhoidal Salmonella enterica serovars in surface water stored aerobically for up to 28 days at 5, 25, and 37 °C. Additionally, biofilm formation of wild-type and pressure-stressed non-typhoidal Salmonella serovars were monitored on surface of stainless steel and rubber coupons for 28 days at 25 and 37 °C. While L. monocytogenes exhibited a lower …


Augmenting The Pressure-Based Pasteurization Of Listeria Monocytogenes By Synergism With Nisin And Mild Heat, Sadiye Aras, Md Niamul Kabir, Shahid Chowdhury, Aliyar Cyrus Fouladkhah Jan 2020

Augmenting The Pressure-Based Pasteurization Of Listeria Monocytogenes By Synergism With Nisin And Mild Heat, Sadiye Aras, Md Niamul Kabir, Shahid Chowdhury, Aliyar Cyrus Fouladkhah

Agricultural and Environmental Sciences Faculty Research

The current study investigated Listeria monocytogenes inactivation using mild heat with elevated hydrostatic pressure and nisin under buffered condition. A four-strain pathogen mixture was exposed to 0 (control) and up to 9 min of (1) 4 °C elevated pressure; (2) 4 °C elevated pressure and nisin; (3) 4 °C nisin; (4) heat at 40 °C; (5) 40 °C elevated pressure; (6) 40 °C elevated pressure and nisin; and (7) 40 °C nisin. Elevated hydrostatic pressure at 400 MPa (Hub880 Explorer, Pressure BioScience Inc., Easton, MA, USA) and nisin concentration of 5000 IU/mL were used in the trials. Analyses of variance …


Interactions Of Carvacrol, Caprylic Acid, Habituation, And Mild Heat For Pressure-Based Inactivation Of O157 And Non-O157 Serogroups Of Shiga Toxin-Producing Escherichia Coli In Acidic Environment, Md Niamul Kabir, Sadiye Aras, Abimbola Allison, Jayashan Adhikari, Shahid Chowdhury, Aliyar Fouladkhah May 2019

Interactions Of Carvacrol, Caprylic Acid, Habituation, And Mild Heat For Pressure-Based Inactivation Of O157 And Non-O157 Serogroups Of Shiga Toxin-Producing Escherichia Coli In Acidic Environment, Md Niamul Kabir, Sadiye Aras, Abimbola Allison, Jayashan Adhikari, Shahid Chowdhury, Aliyar Fouladkhah

Agricultural and Environmental Sciences Faculty Research

The current study investigated synergism of elevated hydrostatic pressure, habituation, mild heat, and antimicrobials for inactivation of O157 and non-O157 serogroups of Shiga toxin-producing Escherichia coli. Various times at a pressure intensity level of 450 MPa were investigated at 4 and 45 °C with and without carvacrol, and caprylic acid before and after three-day aerobic habituation in blueberry juice. Experiments were conducted in three biologically independent repetitions each consist of two replications and were statistically analyzed as a randomized complete block design study using ANOVA followed by Tukey- and Dunnett’s-adjusted mean separations. Under the condition of this experiment, habituation of …


Adoptable Interventions, Human Health, And Food Safety Considerations For Reducing Sodium Content Of Processed Food Products, Abimbola Allison, Aliyar Fouladkhah Feb 2018

Adoptable Interventions, Human Health, And Food Safety Considerations For Reducing Sodium Content Of Processed Food Products, Abimbola Allison, Aliyar Fouladkhah

Agricultural and Environmental Sciences Faculty Research

Although vital for maintaining health when consumed in moderation, various epidemiological studies in recent years have shown a strong association between excess dietary sodium with an array of health complications. These associations are robust and clinically significant for development of hypertension and prehypertension, two of the leading causes of preventable mortality worldwide, in adults with a high-sodium diet. Data from developed nations and transition economies show worldwide sodium intake of higher than recommended amounts in various nations. While natural foods typically contain a moderate amount of sodium, manufactured food products are the main contributor to dietary sodium intake, up to …