SAES-422 Multistate Research Activity Accomplishments Report

Status: Approved

Basic Information

Participants

File attached

Accomplishments

Risk Assessment: Characterize food safety risks in food systems

Participants at Illinois continued to lead a team evaluating the power of sampling and testing plans throughout various produce supply chains. This projects has variously involved other S1077 participants in project design, simulating specific supply chains, and in discussions with stakeholders.

Participants at the University of Tennessee continued to evaluate mitigation strategies and rapid detection methods to decrease the risk of microbial contamination in the food environment. Various S1077 participants continue to be sought for collaboration in related projects and for stakeholder input.

LSU AgCenter's research focused on evaluating the food safety risk associated with application of raw and composted manure and contaminated water using drip/or overhead irrigation to produce carrot and cucumbers. Food safety risk was also evaluated using contaminated seeds and water during hydroponic production system.

Investigator at Texas A&M AgriLife Research led USDA-funded research that characterized capability of selective/differential medium to detect human pathogen Escherichia albertii and differentiate from E. coli and Salmonella recovered from artificially inoculated ground poultry meat. Researchers also conducted assessment of E. albertii prevalence from experimental chickens housed at Texas A&M AgriLife to test medium capacity to isolate presumptive colonies for subsequent molecular identification. Manuscript in preparation.

Barbara Kowalcyk lead a team and found that women of reproductive age with high consumption of maize-based foods are at risk of having a child with Neural Tube Defects (NTD). Increasing diet diversity through inclusion of non-maize-based foods can lower fumonisin exposure. 

The URI team conducted on-farm food safety visits to help growers comply with food safety regulations and adopt best practices.

Participants at the University of Connecticut determined that Listeria monocytogenes  can survive and grow during the cheesemaking process and storage of Queso Fresco. Work by participants also demonstrated Salmonella adherence and invasion of human colon cells. These data contribute to characterizing the risk of foodborne listeriosis and salmonellosis.

Purdue Team characterized food safety risks in food systems: We conducted interviews with small food processors and food safety inspectors. Those assessments gained a unique and valuable perspective to understand the knowledge gap and helped the development of communication strategies. The assessment measurements were developed and validated to support future risk assessment activities.

Participants at UMaine led a team to: (1) Conduct preliminary sampling for assessment of microbial pathogens in wild blueberries during production and harvest. (2) Determine the antimicrobial impact of common seaweed processing practices on pre- and post-harvest pathogens.

Participants at KSU focus on studying diverse routes of contamination and investigate antimicrobial interventions to improve the safety of water,  produce and meat products

Risk Management: Develop, validate, and apply science-based interventions to prevent and mitigate food safety threats

Participants from LSU AgCenter developed intervention techniques related to use of sanitizers and UV-C light to minimize food safety risk associated with Agricultural water and hydroponic production. A composting for food safety and farmers market food safety course was also developed.

Researchers at Texas A&M AgriLife Research completed USDA-funded research determining the capacity of superhydrophobic coating materials applied onto hardwoods (pine, oak) to prevent pathogen biofilms for produce safety application. Coatings reduced pathogen retention on wood by 65-75% versus untreated wood, but efficacy was reduced with extended atmospheric exposure and inoculum application. Microscopic analysis indicated wood species will be strongly impactful on resulting coating adhesion, surface characteristic, and consequent microbial attachment/residence. Manuscript in preparation.

Investigator at Texas A&M has initiated industry-sponsored research determining the Salmonella lethality characteristics for low-temperature rendering of poultry offal. This research has identified rapid Salmonella declines in chicken blood with slower death kinetic characteristics in feathers, both used for manufacture of feed additives.

Researchers finalized publication of USDA-sponsored research detailing the reduction in numbers of human pathogens on tomato surfaces by application of plant-derived antimicrobial containing micro-encapsulates. Encapsulated antimicrobials produced a 99% reduction in numbers of surviving Salmonella and STEC versus unencapsulated antimicrobial, 200 ppm free chlorine over 10 days' refrigerated storage. Similarly, when antimicrobial encapsulates were applied prior to pathogen contamination, a >90% reduction in numbers of pathogens were determined versus other treatments applied similarly. Encapsulation affords greater long-term pathogen suppression versus use of free, naked antimicrobials.

Participants at the University of Maine and the University of New Hampshire lead a team to work with small and medium-sized produce farmers from those states to create or improve their farm food safety plans. A webinar to introduce the program and invite participants was delivered in early 2022, and ten farms in each state were visited to provide farm food safety support. These farmers work on portions of a farm food safety plan that will have the most significant impact on the safety of their operation, such as creating SSOPs, establishing a worker training program, etc. Ten more farmers from each state will be included in the program in 2023 and 2024.

Participants at Virginia Tech led research team to determine the efficacy of a stream of microbubbles (0.1-0.5 mm. diameter) for detaching inoculated Listeria monocytogenes from the surface of raw cucumbers and avocados. Cucumbers and avocados treated for 10 min resulted in a reduction of L. monocytogenes that was 98% greater than without a microbubble treatment.  Microbubble applications can remove biological contaminants from a surface by shear force generated from the impact of air bubbles on curved surfaces.

Barbara Kowalcyk lead a team and completed a Risk Ranking workshop in Ethiopia with representatives from government, academia, and industry. A list of 37 foodborne hazards of concern were categorized into groups of high, medium and low.

Participants at the University of Connecticut demonstrated that the addition of protective bacteria cultures recommended by the manufacturer did not affect the growth of L. monocytogenes during the manufacture and storage of Queso Fresco. They also demonstrated that prior exposure to another commercially produced culture attenuated Salmonella virulence, and exerted probiotic effects in the host through protection against Salmonella infection. Farmers were taught by UConn Food Safety Extension team to conduct risk assessment, management and comply with FDA and USDA regulations for their respective operations. They were trained to make food safety plans in trainings including Meat and Poultry HACCP and Produce safety trainings conducted throughout the year.

Participants at Michigan State University continued to participate in efforts to characterize the impact of vacuum steam pasteurization on pathogen lethality and product quality for wheat grain.

Participants at Missouri focused on (i) investigation of the antimicrobial activity of a TiO2-coated stainless steel against E. coli O157:H7 and S. aureus biofilms. (ii) Development of an upstream DNA concentration method for rapid detection of E. coli O157 H7 by HRM-real time PCR.  (iii)  Characterization of a novel bacteriophage specific against Shiga toxin producing E. coli. (iv) Development of a novel phage-incorporated packaging film.

At KSU several risks evaluations in pre-harvest setting  were conducted, to establish a better way to manage the risk of Salmonella in the pork and beef production chain.

At Clemson, there were 5 major studies.  1, to determine the optimal concentrations of black seed oil, black seeds, kefir, and bacteriophage alone or in combination in poultry feed or drinking water to inhibit coccidiosis and prevent or lessen NE in broilers by conducting several trials of animal studies. 2. The efficacy of three EPA-registered disinfectants and steam against two HuNoV surrogates [feline calicivirus (FCV) and Tulane virus (TuV)] was compared between two types of nylon carpets 3. This research is intended to determine the effect of long-term sanitizer use on surface materials commonly found in foodservice establishments (FSEs). 4. Polydiacetylene are small molecules that change color where developed to detect SARS-CoV.  Membrane filters were coated with 10,12-pentacosadiynoic acid (PCDA) then polymerized on the filter for rapid detection. 5. Natural biofilms recovered from peach processing dry surfaces were used to form mixed biofilms inoculated with Listeria monocytogenes and Salmonella spp. Listeria survived better that Salmonella in mixed biofilms in dry conditions (25-65% RH)."

Risk Communication: Convey science-based messages to stakeholders to improve food safety behaviors and practices

LSU AgCenter food safety team offered several food safety workshops including PSA growers course, FSPCA PCQI course, Farmers market food safety, Composting for food safety, GAPs/GHPs and Farm workers food safety course around the state.

Investigator Taylor, Texas A&M AgriLife Research, led 5 produce safety grower training events discussing and describing methods for fruit and vegetable growers to identify and reduce food safety risks on their farm sites, contacting 19 differing organizations in Texas with 42 participants. Additionally, investigator collaborated with Produce Safety Alliance to offer one Advanced Produce Safety workshop to help other produce safety trainers improve their skills at teaching growers how to identify and reduce produce safety risks.

The URI team conducted RIGAP/PSA grower training, FSPCA PCHF training, SHA Seafood HACCP training, and other food safety workshops targeting early stage food entrepreneurs, growers processing food in their on-farm kitchen, and home food preservation for the public.

By the University of Connecticut, data related to the use of commercial protective cultures against Salmonella were presented at the 2022 International Association for Food Protection Annual Meeting. We also published the results as a peer-reviewed manuscript in a high impact journal in the field of food microbiology and safety.

Purdue Team conveyed science-based messages to stakeholders to improve food safety behaviors and practices. We developed communication and outreach materials to extend research on food safety to consumers and other stakeholders. We also developed peer-reviewed journal articles to communicate the recent research data.

Vermont team held a webinar on risk mitigation for backyard chicken farmers, which included individuals from outside Vermont.

Impacts

  1. Since 2000, a multidisciplinary team of researchers and Extension educators from 39 institutions across the U.S. have worked together to address food safety concerns. This year researchers formed more than 17 collaborative projects (listed below are those award or still under review) published over 30 peer-reviewed articles with multistate participants, and fostered an inclusive environment in which new researchers can grow. These efforts have expanded knowledge and set the foundation for future work on food safety. These multistate collaborations have led to inventive strategies that can help prevent food safety threats before they become dangerous and costly.
  2. New research grants will allow researchers to find new ways to prevent or eliminate food safety threats along the entire food supply chain, such as: • Qinglin Wu, Achyut Adhikari, Dorin Boldor, Cristina Sabliov, Giovanna Aita, and Todd Monroe. $999,857. LA Board of Regents . Enabling the LSU AgCEnter’s Louisiana Institute for BioProducts and Bioprocessing for Bioeconomy Development in Louisiana. 2022-2026 • Achyut Adhikari. $55,000. Developing practices to minimize the food safety risk associated with Cryptosporidium on specialty crops. USDA Specialty Crop Block Grant. 2022-2024. • Renukaradhya Gourapura (PI). 05/01/2022 – 04/30/2025. Sponsor: USDA-AFRI. Title: Drinking water deliverable mucoadhesive chitosan nanoparticle-based Salmonella and Campylobacter subunit vaccine for broilers to improve food safety. • Gireesh Rajashekara (PI). 11/1/2021-10/31/2023. FSMA Water Standard for Surface Irrigation Water in Tomato Production using High Tunnel Drip-line Systems. Ohio Department of Agriculture – Specialty crop block grant. • USDA NIFA Food Safety Outreach Program 2022–2024. Building Capacity: Customized Food Safety Education and Outreach in Rhode Island. $205,000. PI: N. Richard. • D’Amico, D. Effect of bioprotective cultures on Listeria monocytogenes in milk and high moisture cheese. National Dairy Council. 12/15/22-12/31/24. $40,142. Submitted. • D’Amico, D. Biocontrol strategies to promote produce safety for small and midsize farms. USDA-NIFA. Submitted • D’Amico, D. Utilizing On-farm Inspectional and Educational Observations when Developing a Tailored Approach to Regional Produce Safety Education. USDA-NIFA. Awarded. • National Science Foundation research grant (award number 2228971). Awarded to Prof. Vincent Noireaux (University of Minnesota), Dr Steven Bowden (University of Minnesota) and Prof. Bruce Nash (CSHL, New York) to investigate bacteriophage manufacturing using cell free expression systems. • Vipham, J. Utilizing Pre-Harvest Enumeration and Risk Factors to Predict Ground Turkey Test Results. USDA. Total Award: $589,800 • North American Meat Institute Foundation. Exploring the use of Probicon as a direct-fed microbial to reduce the Salmonella burden in market hogs. Total Award: $152,496 • North American Meat Institute Foundation. Leveraging a current market hog lymph node study to further understand Salmonella transmission and internal colonization. Total Award: $60,202 • Dawson, P. Survival of Listeria monocytogenes and Salmonella spp. on Surfaces Found in the Dry Packinghouse Environment and Effectiveness of Dry Cleaning Processes on Pathogen Reduction: Center for Produce Safety
  3. New Extension funds will allow researchers to improve food safety knowledge and practices by providing learning materials and experiences for both the food industry and consumers. • Achyut Adhikari. Path C. $500,342. Implementing FSMA Produce Safety Rule in Louisiana. FDA LDAF. 2022-2026. • Achyut Adhikari, Priyanka Gupta. $49,925. Develop and deliver on-farm food safety risk management programs for farmworkers to address food safety liability and meet federal and market driven food safety requirements Southern Risk Management Education Center. 2022-2023 • New funding was awarded to investigator at Texas A&M AgriLife by TX Department of Agriculture to fund ongoing produce safety training programs for Texas-based fruit and vegetable growers. A third iteration of the Southern Center for Produce Safety Outreach, Education, and Training was won from USDA-NIFA. The investigator (Taylor) is the lead investigator for Texas A&M AgriLife Research on this grant as well as on the multistate project. • Yaohua Feng, Senay Simsek, Maria Julia Bello Bravo. USDA-NIFA-FSOP. Transformative food safety learning program 1.0: Using virtual simulation to engage small- and very-small food processors. 2022- 2025. $300,000.

Publications

Peer Reviewed Publications

Gupta, P. and A. Adhikari, A. 2022 Novel Approaches to Environmental Monitoring and Control of Listeria monocytogenes in Food Production Facilities. Foods. DOI: 10.3390/foods11121760

Yemmireddy, V., Adhikari, A., and Moreira, J. 2022. Effect of Ultraviolet Light Treatment on Microbiological Safety and Quality of Fresh Produce: An Overview. Frontiers in Nutrition and Food Science.

Aryal, J. Chhetri, V. and Adhikari. A. 2022. Survival and attachment of Listeria monocytogenes on bell peppers and influence of attachment time on efficacy of chlorine. LWT Food Science and Technology.

Perez-Lewis, K.L., Y. Yegin, J.K. Oh, A. Castillo, L. Cisneros-Zevallos, C.R. Kerth, M. Akbulut, and T.M. Taylor. 2022. Reduction of bacterial enteric pathogens and hygiene indicator bacteria on tomato skin surfaces by polymeric nanoparticle-loaded plant derived antimicrobial. Microorganisms. 10:448. doi: 10.3390/microorganisms10020448

Perez-Lewis, K.L., Y. Yegin, J.K. Oh, A. Castillo, L. Cisneros-Zevallos, C.R. Kerth, E. Scholar, and T.M. Taylor. 2021. Encapsulated plant-derived antimicrobial reduces enteric bacterial pathogens on melon surfaces during differing contamination and sanitization treatment scenarios. Applied Microbiology. 1:460-470. doi: 10.3390/applmicrobiol1030030

Yegin, Y., K.L. Perez-Lewis, S. Liu, C.R. Kerth, L. Cisneros-Zevallos, A. Castillo, M. Akbulut, and T.M. Taylor. 2021. Antimicrobial-loaded polymeric micelles inhibit enteric bacterial pathogens on spinach leaf surfaces during multiple simulated pathogen contamination events. Frontiers in Sustainable Food Systems. 5:646980. doi: 10.3389/fsufs.2021.646980"

Chen Y, Simonetti T, Peter K, Jin Q, Brown E, LaBorde LF, Macarisin D. Genetic Diversity of Listeria monocytogenes Isolated From Three Commercial Tree Fruit Packinghouses and Evidence of Persistent and Transient Contamination. Front Microbiol. 2022 Jan 10;12:756688. doi: 10.3389/fmicb.2021.756688. PMID: 35082763; PMCID: PMC8784831.

Hailu W, Helmy YA, Carney-Knisely G, Kauffman M, Fraga D, Rajashekara G. Prevalence and Antimicrobial Resistance Profiles of Foodborne Pathogens Isolated from Dairy Cattle and Poultry Manure Amended Farms in Northeastern Ohio, the United States. Antibiotics (Basel). 2021 Nov 25;10(12):1450. doi: 10.3390/antibiotics10121450

Garsow AV, Torres OR, Matute JA, Riley RT, Harris JR, Lamichhane AP, et al. (2022) Dietary and socioeconomic risk factors for fumonisin exposure among women of reproductive age in 18 municipalities in Guatemala from 2013 to 2014. PLOS Glob Public Health 2(8): e0000337. https://doi.org/10.1371/journal.pgph.0000337

Aljasir, S.F, and D. D'Amico. 2022. Anti-infective properties of the protective culture Hafnia alvei B16 in food and intestinal models against multi-drug resistant Salmonella. Food Microbiol. https://doi.org/10.1016/j.fm.2022.104159.

Aljasir, S.F, and D. D'Amico. 2021. Effect of pre-exposure to protective bacterial cultures in food on Listeria monocytogenes virulence. LWT Food Sci. Technol. 112373. https://doi.org/10.1016/j.lwt.2021.112373

Aljasir, S.F, and D. D'Amico. 2021. Dairy-associated protective cultures as probiotics to protect against Listeria monocytogenes infection. Food Res. Int. 110699. https://doi.org/10.1016/j.foodres.2021.110699

Archila-Godinez, J. C., Chen H., Klinestiver, L., Rosa, L., Barrett, T., Zabala, V. & Feng, Y. (2022). Evaluation of a virtual food safety program for low-income families: Application of the theory of planned behavior. Foods, 11(3), 55.

  1. Jung, Widmar, N., Subramani, S., & Feng, Y. (2022). Online media attention devoted to flour and flour-related food safety in 2017–2020. Journal of Food Protection, 85(1), 73–84.

Chen H., Feng, Y., Benjamin, T., & Guan, W. (2022). Food safety education needs assessment for small-scale produce growers interested in value-added food production. Journal of Food Protection, 85(2), 220–230.

Thomas, M. & Feng, Y. (2022). Evaluation of Flour Safety Messages on Commercially Available Packages: An Eye-Tracking Study. Foods.

Chen, H., Archila-Godinez, J. C., Klinestiver, L., Rosa, L., Barrett, T., Zabala, V., & Feng, Y. (in press). Implementation of a dialogue-based food safety education program for low-income families. Food Control.

Beary, M. A., Dicaprio, E., Feng, Y., Chang, E., Dunn, L. L., Padilla-Zakour, O. I., & Snyder, A. B. (in press). Virtual food safety trainings during the COVID-19 pandemic reveals significant opportunities for future distance education in food safety extension. Food Safety Management in Practice.

Low, M., Scharff, R., Anderson, N., Grasso-Kelly, E., & Feng, Y. (2022). Food handling practices of apple drying in home kitchens: A survey. Journal of Food Protection."

Hedblom, G.A., Dev, K., Bowden, S.D. et al. Comparative genome analysis of commensal segmented filamentous bacteria (SFB) from turkey and murine hosts reveals distinct metabolic features. BMC Genomics 23, 659 (2022). https://doi.org/10.1186/s12864-022-08886-x

Joerger, R. D., Ganguli, A., Wachira, J. and Q. Hardy. 2021. Evaluation of sodium hypochlorite and peroxyacetic acid to prevent transfer of surface-attached Listeria monocytogenes to produce. J. Food Safety. 41: e12882.

This is accepted but not yet published. "Food Safety Training Needs Assessment Among Maple Syrup Producers and Evaluation of Post-Process Contaminant Survival During Maple Syrup Storage" for first issue of Food Safety Management in Practice.

Dhital, R., Z. Shen, S. Zhang and A. Mustapha‡.  2021.  Detection of virulence and ESBL genes in Salmonella by multiplex high-resolution melt-curve real-time PCR assay.  J. App. Microbiol. 132(3):2355-2367.

Choo, K. W., R. Dhital, L. Mao, M. Lin and A. Mustapha‡.  2021.  Development of polyvinyl alcohol/chitosan/modified bacterial nanocellulose films incorporated with 4-hexylresorcinol for food packaging application. Food Packaging and Shelf Life 30(2021) 100769.

Asgari, S., R. Dhital, S. Ali Aghvami, A. Mustapha, Y. Zhang, M. Lin.  2022. Separation and detection of E. coli O157:H7 using a SERS-based microfluidic immunosensor. Microchimica Acta 189:111.

Irakoze, Z., L. Nwadike, D. Stoeckel, M. Bhullar, P. Byers, and S.E. Gragg. 2022. Evaluation of peroxyacetic acid and chlorine as treatments for surface water for post-harvest uses in the produce industry. Water. 14:3890. https://doi.org/10.3390/w14233890 

Miller, M., J.M. Maher, B. Wiseman, and S.E. Gragg. 2022. Salmonella is present in multiple lymph nodes of market hog carcasses at slaughter. Food Protection Trends. 42:100-106.

Haley, O.C., Y. Zhao, J.M. Mahe, S.E. Gragg, V. Trinetta, M. Bhullar, and L. Nwadike. 2022. Comparative assessment of the microbial quality of agricultural water on Kansas and Missouri fresh produce farms. Food Protection Trends. 42:186-193.

Habib, K., J. Drouillard, V. De Aguiar Veloso, G. Huynh, V. Trinetta, and S. E. Gragg. 2022. The Use of probiotic Megasphaera elsdenii as a pre-harvest intervention to reduce Salmonella in finishing beef cattle: An in vitro model. Microorganisms. 10:1400.

Admaie, A., A. Eshetu, T. Sisay Tessema, J. Vipham, J. Kovac, A. Zewdu. Prevalence of Campylobacter species and associated risk factors for contamination of dairy products collected in a dry season from major milk sheds in Ethiopia. 2022. Journal of Food Microbiology. Doi:10.1016/j.fm.2022.104145.

Farmer, K. J., E. S. Beyer, S. G. Davis, K. M. Harr, K. R. Lybarger, L. A. Egger, M. D. Chao, J. L. Vipham, M. D. Zumbaugh, and T. G. O'Quinn. 2022. Evaluation of the impact of bone-in versus boneless cuts on beef palatability. Meat Muscle Biol. 6:1-13. doi:10.22175/mmb.15488

Harr, K. M., E. S. Beyer, K. J. Farmer, S. G. Davis, M. D. Chao, J. L. Vipham, M. D. Zumbaugh, and T. G. O'Quinn. 2022. Impact of disclosing fat content, primal source, and price on consumer evaluation of ground beef. Meat Muscle Biol. 6. doi:10.22175/mmb.15482

Mekonen, T., A. Tolera, A. Nurfeta, B. Bradford, S. Yigrem, J. Vipham. Effects of pigeon pea leaves and concentrate mixture on feed intake, milk yield, and composition of crossbred dairy cows fed native pasture hay. 2022. Animal. Doi:10.1016/j.animal.2022.100632.

Mengstu, B., A. Tola, H. Nahusenay, T. Sisay, J. Kovac, J. Vipham, A. Zewdu. Evaluation of microbial hygiene indicators in raw milk, pasteurised milk and cottage cheese collected across the dairy value chain in Ethiopia. 2022. International Dairy Journal. Doi: 10.1016/j.idairyj.2022.105487.

Schwan, C., T. Dallman, P. Cook, J. Vipham. A case report of Salmonella enterica serovar Corvallis from environmental isolates from Cambodia and clinical isolates in the UK. 2022. Access Microbiology. Doi:10.1099/acmi.0.000315.

Northcutt, J. K., A. Buyukyavuz, and P. L. Dawson.  2022.  Quality of Japanese quail (Coturnix coturnix japonica) eggs after extended refrigerated storage. J. Appl. Poult. Res. 31:100280 https://doi.org/10.1016/j.japr.2022.100280

Hegler, C. M., S. Cothran, R. Martinez-Dawson, P. L. Dawson and J. K. Northcutt. 2022. Impact of emergency remote teaching on university students at a public institution in the United States. Submitted February 2022 to Journal of Higher Education Theory and Practice. 22(8). https://doi.org/10.33423/jhetp.v22i8.5329

Huang, J. GW, Park, R.M. Jones, A. Fraser, J. Vinjé, and X. Jiang. 2022. Efficacy of EPA-registered disinfectants against two human norovirus surrogates and Clostridioides difficile endospores. J. Appl. Microbiol. 132:4289-4299.  DOI:10.1111/jam.15524

Extension Publications

Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., Timmerman, A., & Willis, J. (2022a). Backyard Composting. Composting Series, 2. https://lsuagcenter.com/~/media/system/a/c/b/f/acbf794919812b6fa1a9804fd7496144/backyardcompostingpdf.pdf 

Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., Timmerman, A., & Willis, J. (2022b). Compost Feed Stock. Composting Series, 2. https://lsuagcenter.com/~/media/system/9/8/1/d/981dd5a1e00599291c1980c496be2bb9/compostingseries-feedstock-2pdf.pdf

Dunaway, C., Adhikari, A., Hammett, B., Kuehny, J., Moreira, J., Timmerman, A., & Willis, J. (2022a). Active vs Passive Composting (Hot vs Cold). Composting Series, 1. https://lsuagcenter.com/~/media/system/7/6/8/6/76860bf66d0d6be475b8ad0ca1c9af89/compostingseries-hotvcold-tpdf.pdf 

Dunaway, C., Adhikari, A., Hammett, B., Kuehny, J., Moreira, J., Timmerman, A., & Willis, J. (2022b). Three-Bin System. Composting Series, 1. https://lsuagcenter.com/~/media/system/e/1/3/2/e1326ecbe2ca11322da62e0678fbdd77/compostingseries-3binpdf.pdf 

Moreira, J., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Timmerman, A., & Willis, J. (2022a). Benefits of Maintaing Soil Health. Composting Series, 1. https://lsuagcenter.com/~/media/system/2/6/0/f/260fee0e68aaf11080668777c49d4015/compostingseries-maintaingsoilhealthpdf.pdf 

Moreira, J., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Timmerman, A., & Willis, J. (2022b). Building an Aerated Static Compost Pile. Composting Series, 1. https://lsuagcenter.com/~/media/system/b/3/a/f/b3af10e8d364791accf6553fcef7b3d9/compostfactsheet-aeratedpilepdf.pdf 

Moreira, J., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Timmerman, A., & Willis, J. (2022c). Determination of Compost Maturity. Composting Series, 2. https://lsuagcenter.com/~/media/system/0/c/5/7/0c579b4035eb096cd936a72d5559cea3/compostingseries-determinationofcompostmaturitypdf.pdf 

Moreira, J., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Timmerman, A., & Willis, J. (2022d). Food Safety Issues Related to Compost. Composting Series, 1. https://lsuagcenter.com/~/media/system/9/a/9/4/9a945f10de851bc98d0ba325eead7ca5/compostfactshee-foodsafetyissues-nlpdf.pdf 

Timmerman, A., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., & Willis, J. (2022a). <CompostingSeries-WormCastingspdf.pdf>. Composting Series, 1. https://lsuagcenter.com/~/media/system/f/b/5/b/fb5bf0548fc74c0b6afb744ba689cbae/compostingseries-wormcastingspdf.pdf 

Timmerman, A., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., & Willis, J. (2022b). How to Reduce Odor in Compost Systems Composting Series, 1. https://lsuagcenter.com/~/media/system/7/c/c/d/7ccd1bf3a258364a0664dca60184560f/compostingseries-howtoreduceodorincompostsystems2brchpdf.pdf 

Timmerman, A., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., & Willis, J. (2022c). How to Store and Handle Compost Materials. Composting Series, 1. https://lsuagcenter.com/~/media/system/3/8/3/1/3831096ae5889256d3b598553946f48c/compostingseries-howtostoreandhandlepdf.pdf 

Willis, J., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., & Timmerman, A. (2022a). Compost Moisture Content. Composting Series, 2. https://lsuagcenter.com/~/media/system/0/3/1/6/0316092172c3fcc858d35d7c0c117719/compostingseries-compostmoisturecontentpdf.pdf 

Willis, J., Adhikari, A., Dunaway, C., Hammett, B., Kuehny, J., Moreira, J., & Timmerman, A. (2022b). Compost Tea. Composting Series, 2. https://lsuagcenter.com/~/media/system/7/1/8/3/71832071e8b30620aa861668bb1ee38e/compostingfactsheet-compostteapdf.pdf "

Balasubramanian, B., Shah, T., Zhu, C., Rankin, K., Ghimire, S., Upadhyaya, I., Upadhyay, A. Application of ultra-fine bubble technology to reduce Listeria monocytogenes contamination of Romaine lettuce. Fall Crop Talk 2022 Newsletter. https://ipm.cahnr.uconn.edu/wp-content/uploads/sites/3216/2022/10/Crop-Talk-October-2022-FV-reduced.pdf 

Upadhyaya, I., Contributor in CT Farm Ag Guide, 2022. https://ctfarmrisk.extension.uconn.edu/wp-content/uploads/sites/3181/2022/06/AgBusinessMgmtGuide06062022.pdf.pdf

Northcutt, J. K. 2021. Farm food safety:  Choosing a sanitizer for washing fresh produce. Home and Garden Information Center Fact Sheet #3644. https://hgic.clemson.edu/factsheet/farm-food-safety-choosing-a-sanitizer-for-washing-fresh-produce/

Thompson, A. and J. K. Northcutt. 2021. Cleaning and sanitizing for the homebrewer. Home and Garden Information Center Fact Sheet #3885. https://hgic.clemson.edu/factsheet/cleaning-and-sanitation-for-the-homebrewer/

Northcutt, J. K. and P. L. Dawson. 2021. Bacterial attachment to food and food processing surfaces can lead to biofilm formation. Home and Garden Information Center Fact Sheet #3886. https://hgic.clemson.edu/factsheet/bacterial-attachment-to-food-and-food-processing-surfaces-can-lead-to-biofilm-formation/"

Abstracts, Proceedings, and Presentations 

Aryal, J and Adhikari A. 2022. Effect of fine bubbles and electrochemical disinfection on efficacy of chlorine against bacterial pathogens on bell peppers. IAFP Annual Meeting Abstracts

Kharel, K and Adhikari, A. 2022. Antimicrobial efficacy of pullulan coating incorporated with pecan shell extract and its effect on quality of blueberries during storage. IAFP Annual Meeting Abstracts

Mendoza, J., and Adhikari, A. 2022. Effectiveness of UVC light treatment in controlling Listeria monocytogenes in hydroponic fertilizer solutions. IAFP Annual Meeting Abstracts

Lituma, I., and Adhikari, A. 2022. Effect of UV-C Light Treatment Against Listeria Monocytogenes on Hydroponically Grown Lettuce and its Effect on Quality. IAFP Annual Meeting Abstracts

Taylor, T.M. 2022. Control of Bacillus in the meat industry: emerging techniques and future perspectives. International Association for Food Protection Annual Meeting, Pittsburgh, PA.

Taylor, T.M. 2021. Keeping it clean! Food safety hazard risk control for wooden implements in fresh produce production, harvest, and packing. Great Lakes Fruit, Vegetable, and Farm Market Expo, Grand Rapids, MI.

Taylor, T.M. 2021. Surface interfacial science to disrupt pathogen survival on fresh produce. Department of Food Science, University of Arkansas, Fayetteville, AR.

Vice, Z., W. deFlorio, M. Taylor, and M. Akbulut. 2022. Determination of antifouling capabilities of silane-treated wood (Abstract P2-120). International Association for Food Protection Annual Meeting, Pittsburgh, PA.

Aljasir, S., and D. D'Amico. 2022. Exposure to Protective Culture Hafnia alvei Attenuates Salmonella Virulence in Food and Intestinal Models. Presented at the International Association for Food Protection annual conference.

Thomas, M., Berglund, Z. , Low, M. Y. L., Soewardjono, R. A., Bryan, I., & Feng, Y. (2022). Evaluating the accessibility of food safety messages on flour packages using eye tracking. The Annual Meeting of the Institute of Food Technologists.

Karnpanit W., Torres E. J., Betanzo M. R., Feng Y. (2022). Cumulative chronic exposure assessment of carbamate and pyrethroid pesticides in Thai population through commonly consumed vegetable consumption. SETAC Europe 32nd Annual Meeting. Virtual.

Archila-Godínez, J. C., Marshall, M., Wiatt, R., Deering, A., & Feng Y. (2022). Consumers’ food safety perception of fresh produce from small- and medium-sized farms. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Chen, H., Anderson, N., Grasso-Kelley, E., Wu, F., Tang, J., Harris, L., & Feng, Y. (2022). Needs assessment of the low-moisture food industry: The next steps to advance food safety research and extension. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Swinehart, M., Harris, L., Louvau, H., & Feng, Y. (2022). Content analysis of online tree nut recipes: Soaked nuts and nut-based dairy alternatives. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Swinehart, M., Harris, L., Anderson, N., & Feng, Y. (2022). Food safety implications of nut-based dairy alternatives and soaked nuts. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Low, M., & Feng, Y. (2022). Content analysis of food safety information in dried apple recipes on YouTube, blogs, cookbooks and extension materials. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Low, M., Scharff, R., Tang, J., Grasso-Kelley, E., Marks, B.P., & Feng, Y. (2022). Food handling practices of apple drying in home kitchens: A survey. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Low, M., Kinchla, A., Richard, N., DiCaprio, E L., & Feng, Y. (2022). Regulatory considerations for small-scale produce drying operations: A multi-state perspective obtained through inspector interview. The Annual Meeting of the International Association for Food Protection, Pittsburg, PA.

Thomas, M., & Feng, Y. (2022). The year-long effect of COVID-19 on food safety: Consumer practices and perceptions using longitudinal consumer surveys and focus groups. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Thomas, M., Berglund, Z. , Low, M. Y. L., Soewardjono, R. A., Bryan, I., & Feng, Y. (2022). Evaluating the accessibility of food safety messages on flour and baking mix packages using eye-tracking technology. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Berglund, Z., & Feng, Y. (2022). Systematic review, meta-analysis and thematic synthesis of virtual food safety trainings and education. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Berglund, Z., Swinehart, M., DiCaprio, E.L., & Feng, Y. (2022). Small-scale processor self-identified barriers to effective food safety training programs. The Annual Meeting of the International Association for Food Protection, Pittsburgh, PA.

Chenggeer, FNU and A. Mustapha. 2022. Antimicrobial activity of a photocatalytic titanium dioxide-coated stainless steel. Presented at the International Association for Food Protection Annual Meeting, Pittsburgh, PA, August 2, 2022.  P2-107.

Dhital, R. and A. Mustapha. 2022. Solid phase reversible immobilization bead concentration combined with PCR for the detection of E. coli O157:H7 in foods.  Presented at the International Association for Food Protection Annual Meeting, Pittsburgh, PA, August 3, 2022.  P3-83.

Mao, L., G. Zheng and A. Mustapha. 2022.  Use of an Escherichia coli pilin gene (traA) to identify human fecal contamination.  Presented at the International Association for Food Protection Annual Meeting, Pittsburgh, PA, August 2, 2022.  P2-109."

Quanz, S.T., K. Habib, K. Smith, T. Rehberger, A.J. Tarpoff, J.S. Thompson, C.S. Jones, L.K. Mamedova, W.E. Boomer, S.E. Gragg, and B.J. Bradford. Effects of Lactobacillus and Bacillus species supplementation on performance and health of pre-ruminant calves through weaning. American Dairy Science Association, Kansas City, Missouri, June 19-22, 2022.

Habib, K., S. Quanz, K. Smith, A.J. Tarpoff, C.S. Jones, Q. Kang, B. Bradford, and S.E. Gragg. Effects of Bacillus and Lactobacillus supplementation in milk replacer diets of Angus×Holstein calves on the prevalence and concentration of Salmonella spp. and Escherichia coli O157 in mesenteric lymph nodes, spleen, cecal fluid, rumen fluid, and feces. International Association for Food Protection, Pittsburgh, Pennsylvania, July 31-August 3, 2022.

Habib, K. J. Schmidt, C. Nichols, Q. Kang, J.M. Bosilevac, D. Harhay, and S.E. Gragg. The effects of administration of a Saccharomyces cerevisiae direct-fed microbial on the prevalence of Salmonella in bovine mesenteric lymph nodes. International Association for Food Protection, Pittsburgh, Pennsylvania, July 31-August 3, 2022.

Schmidt, J., K. Habib, C. Nichols, T.M. Arthur, J.M. Bosilevac, S.E. Gragg, and Dayna Harhay. Characterization and comparison of Salmonella spp. isolated from mesenteric lymph nodes of cattle and the feedlot environment. International Association for Food Protection, Pittsburgh, Pennsylvania, July 31-August 3, 2022.

Irakoze, Z., L. Nwadike, D. Stoeckel, M. Bhullar, P. Byers, and S.E. Gragg. Evaluation of peroxyacetic acid and chlorine as treatments for surface water used in produce post harvest. International Association for Food Protection, Pittsburgh, Pennsylvania, July 31-August 3, 2022.

Bai, J., S.E. Gragg, E. Fashenpour, T. Stephens, and S. Applegate. Salmonella quantification (SalQuantTM) using the BAX® system for pork primary production boot cover samples. International Association for Food Protection, Pittsburgh, Pennsylvania, July 31-August 3, 2022.

Vargas, D.A., G. Betancourt-Barszcz, S.E. Gragg, and M. Sanchez Plata. Salmonella quantification in pork lymph nodes using different methodologies. International Association for Food Protection, Pittsburgh, Pennsylvania, July 31-August 3, 2022.

Vargas, D.A., G. Betancourt-Barszcz, M.F. Miller, S.E. Gragg, and M. Sanchez Plata. Bio-mapping of Salmonella spp. prevalence and quantification levels in market hog lymph nodes and tonsils from commercial processing facilities. Reciprocal Meat Conference, Des Moines, Iowa, June 12-15, 2022.

Vishal Manjunatha, Julian E. Nixon, Greg F. Mathis, Brett Lumpkins, Zeynep B. Guzel-Seydim, Atif Can Seydim, Annel K. Greene, and Xiuping Jiang. 2022. Effect of combined action of Nigella sativa and kefir on the growth performance and health of broiler chickens. International Association of Food Protection (IAFP) Annual Meeting, July 31-Aug 3, Pittsburgh, PA.

Paul Dawson and Claudia Ionita. 2022. Survival of Listeria monocytogenes and Salmonella on surfaces found in the dry packinghouse environment and effectiveness of dry-cleaning processes on pathogen reduction. Center for Produce Safety Annual Meeting, June. San Diego, CA

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