Larry R. Beuchat

Attachment of Escherichia coli O157:H7 to the Surfaces and Internal Structures of Apples as Detected by Confocal Scanning Laser Microscopy

Burnett, Scott L., Chen, Jinru, Beuchat, Larry R.

Confocal scanning laser microscopy (CSLM) was used to demonstrate the attachment of Escherichia coli O157:H7 transformed with a plasmid encoding for green fluorescent protein (GFP) to the surface and...

PCR Detection of Salmonella enterica Serotype Montevideo in and on Raw Tomatoes Using Primers Derived from hilA

Guo, Xuan, Chen, Jinru, Beuchat, Larry R., Brackett, Robert E.

Salmonellae have been some of the most frequently reported etiological agents in fresh-produce-associated outbreaks of human infections in recent years. PCR assays using four innovative pairs of...

Survival of Salmonellae on and in Tomato Plants from the Time of Inoculation at Flowering and Early Stages of Fruit Development through Fruit Ripening

Guo, Xuan, Chen, Jinru, Brackett, Robert E., Beuchat, Larry R.

The fate of salmonellae applied to tomato plants was investigated. Five Salmonella serotypes were used to inoculate tomato plants before and after fruits set, either by injecting stems with inoculum...

Evidence of Association of Salmonellae with Tomato Plants Grown Hydroponically in Inoculated Nutrient Solution

Guo, Xuan, Van Iersel, Marc W., Chen, Jinru, Brackett, Robert E., Beuchat, Larry R.

The possibility of uptake of salmonellae by roots of hydroponically grown tomato plants was investigated. Within 1 day of exposure of plant roots to Hoagland nutrient solution containing 4.46 to 4.65...

Ingestion of Salmonella enterica Serotype Poona by a Free-Living Nematode, Caenorhabditis elegans, and Protection against Inactivation by Produce Sanitizers

Caldwell, Krishaun N., Adler, Barbara B., Anderson, Gary L., Williams, Phillip L., Beuchat, Larry R.

Free-living nematodes are known to ingest food-borne pathogens and may serve as vectors to contaminate preharvest fruits and vegetables. Caenorhabditis elegans was selected as a model to study the...

Evaluation of Chemicals for Restricting Colony Spreading by a Xerophilic Mold, Eurotium amstelodami, on Dichloran-18% Glycerol Agar

Beuchat, Larry R.

Twenty chemicals were screened for their effectiveness in restricting colony spreading by four strains of a xerophilic mold, Eurotium amstelodami, on dichloran-18% glycerol agar. Triton X-100, Triton...

Fermentation of Aqueous Plant Seed Extracts by Lactic Acid Bacteria

Schaffner, Donald W., Beuchat, Larry R.

The effects of lactic acid bacterial fermentation on chemical and physical changes in aqueous extracts of cowpea (Vigna unguiculata), peanut (Arachis hypogea), soybean (Glycine max), and sorghum...

Sensitivity of Escherichia coli O157:H7 to Commercially Available Alkaline Cleaners and Subsequent Resistance to Heat and Sanitizers

Sharma, Manan, Beuchat, Larry R.

The effects of seven commercially available alkaline cleaners used in the food processing industry, 0.025 M NaOH, and 0.025 M KOH on viability of wild-type (EDL 933) and rpoS-deficient (FRIK 816-3)...

Biofilm Formation by Escherichia coli O157:H7 on Stainless Steel: Effect of Exopolysaccharide and Curli Production on Its Resistance to Chlorine

Ryu, Jee-Hoon, Beuchat, Larry R.

The resistance of Escherichia coli O157:H7 strains ATCC 43895-, 43895-EPS (an exopolysaccharide [EPS]-overproducing mutant), and ATCC 43895+ (a curli-producing mutant) to chlorine, a sanitizer...

Potential Role of Diploscapter sp. Strain LKC25, a Bacterivorous Nematode from Soil, as a Vector of Food-Borne Pathogenic Bacteria to Preharvest Fruits and Vegetables

Gibbs, Daunte S., Anderson, Gary L., Beuchat, Larry R., Carta, Lynn K., Williams, Phillip L.

Diploscapter, a thermotolerant, free-living soil bacterial-feeding nematode commonly found in compost, sewage, and agricultural soil in the United States, was studied to determine its potential role...

Attachment of Escherichia coli O157:H7 to the Surfaces and Internal Structures of Apples as Detected by Confocal Scanning Laser Microscopy

Burnett, Scott L., Chen, Jinru, Beuchat, Larry R.

Confocal scanning laser microscopy (CSLM) was used to demonstrate the attachment of Escherichia coli O157:H7 transformed with a plasmid encoding for green fluorescent protein (GFP) to the surface and...

PCR Detection of Salmonella enterica Serotype Montevideo in and on Raw Tomatoes Using Primers Derived from hilA

Guo, Xuan, Chen, Jinru, Beuchat, Larry R., Brackett, Robert E.

Salmonellae have been some of the most frequently reported etiological agents in fresh-produce-associated outbreaks of human infections in recent years. PCR assays using four innovative pairs of...

Survival of Salmonellae on and in Tomato Plants from the Time of Inoculation at Flowering and Early Stages of Fruit Development through Fruit Ripening

Guo, Xuan, Chen, Jinru, Brackett, Robert E., Beuchat, Larry R.

The fate of salmonellae applied to tomato plants was investigated. Five Salmonella serotypes were used to inoculate tomato plants before and after fruits set, either by injecting stems with inoculum...

Evidence of Association of Salmonellae with Tomato Plants Grown Hydroponically in Inoculated Nutrient Solution

Guo, Xuan, Van Iersel, Marc W., Chen, Jinru, Brackett, Robert E., Beuchat, Larry R.

The possibility of uptake of salmonellae by roots of hydroponically grown tomato plants was investigated. Within 1 day of exposure of plant roots to Hoagland nutrient solution containing 4.46 to 4.65...

Ingestion of Salmonella enterica Serotype Poona by a Free-Living Nematode, Caenorhabditis elegans, and Protection against Inactivation by Produce Sanitizers

Caldwell, Krishaun N., Adler, Barbara B., Anderson, Gary L., Williams, Phillip L., Beuchat, Larry R.

Free-living nematodes are known to ingest food-borne pathogens and may serve as vectors to contaminate preharvest fruits and vegetables. Caenorhabditis elegans was selected as a model to study the...

Evaluation of Chemicals for Restricting Colony Spreading by a Xerophilic Mold, Eurotium amstelodami, on Dichloran-18% Glycerol Agar

Beuchat, Larry R.

Twenty chemicals were screened for their effectiveness in restricting colony spreading by four strains of a xerophilic mold, Eurotium amstelodami, on dichloran-18% glycerol agar. Triton X-100, Triton...

Fermentation of Aqueous Plant Seed Extracts by Lactic Acid Bacteria

Schaffner, Donald W., Beuchat, Larry R.

The effects of lactic acid bacterial fermentation on chemical and physical changes in aqueous extracts of cowpea (Vigna unguiculata), peanut (Arachis hypogea), soybean (Glycine max), and sorghum...

Sensitivity of Escherichia coli O157:H7 to Commercially Available Alkaline Cleaners and Subsequent Resistance to Heat and Sanitizers

Sharma, Manan, Beuchat, Larry R.

The effects of seven commercially available alkaline cleaners used in the food processing industry, 0.025 M NaOH, and 0.025 M KOH on viability of wild-type (EDL 933) and rpoS-deficient (FRIK 816-3)...

Biofilm Formation by Escherichia coli O157:H7 on Stainless Steel: Effect of Exopolysaccharide and Curli Production on Its Resistance to Chlorine

Ryu, Jee-Hoon, Beuchat, Larry R.

The resistance of Escherichia coli O157:H7 strains ATCC 43895-, 43895-EPS (an exopolysaccharide [EPS]-overproducing mutant), and ATCC 43895+ (a curli-producing mutant) to chlorine, a sanitizer...

Potential Role of Diploscapter sp. Strain LKC25, a Bacterivorous Nematode from Soil, as a Vector of Food-Borne Pathogenic Bacteria to Preharvest Fruits and Vegetables

Gibbs, Daunte S., Anderson, Gary L., Beuchat, Larry R., Carta, Lynn K., Williams, Phillip L.

Diploscapter, a thermotolerant, free-living soil bacterial-feeding nematode commonly found in compost, sewage, and agricultural soil in the United States, was studied to determine its potential role...

Attachment of and Biofilm Formation by Enterobacter sakazakii on Stainless Steel and Enteral Feeding Tubes

Kim, Hoikyung, Ryu, Jee-Hoon, Beuchat, Larry R.

Enterobacter sakazakii has been reported to form biofilms, but environmental conditions affecting attachment to and biofilm formation on abiotic surfaces have not been described. We did a study to...

Effectiveness of Disinfectants in Killing Enterobacter sakazakii in Suspension, Dried on the Surface of Stainless Steel, and in a Biofilm▿

Kim, Hoikyung, Ryu, Jee-Hoon, Beuchat, Larry R.

The effectiveness of 13 disinfectants used in hospitals, day-care centers, and food service kitchens in killing Enterobacter sakazakii in suspension, dried on the surface of stainless steel, and in...

PENSIONERS AND FOOD INTAKE PATTERNS IN A TRANSITION ECONOMY

Florkowski, Wojciech J., Moon, Wanki, Beuchat, Larry R., Resurreccion, Anna V.A., Paraskova, Pavlina, Jordanov, Jordan, ...

Using nationwide food consumption survey data collected in Bulgaria in 1997, this study examines how food intake patterns of the unemployed and pensioners differ from patterns of the employed. During...

CUSTOMER PROFILES OF RETAIL FOOD OUTLETS IN THE EMERGING MARKET ECONOMY OF BULGARIA

Florkowski, Wojciech J., Moon, Wanki, Paraskova, Pavlina, Jordanov, Jordan, Resurreccion, Anna V.A., Chinnan, Manjeet S., ...

The objective of this study was to identify profiles of consumers frequenting three types of food retail outlets- grocery stores, farmer markets, and street stalls- to purchase food in a transition...