D W Thayer

Summary

Affiliation: Eastern Regional Research Center
Country: USA

Publications

  1. ncbi request reprint Irradiation of food--helping to ensure food safety
    Donald W Thayer
    N Engl J Med 350:1811-2. 2004
  2. ncbi request reprint Inactivation of Escherichia coli O157:H7 and Salmonella by gamma irradiation of alfalfa seed intended for production of food sprouts
    Donald W Thayer
    Food Safety Intervention Technologies Research Unit, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:175-81. 2003
  3. ncbi request reprint Effect of irradiation temperature on inactivation of Escherichia coli O157:H7 and Staphylococcus aureus
    D W Thayer
    Food Safety Research Unit, USDA, ARS, NAA, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 64:1624-6. 2001
  4. ncbi request reprint Fate of gamma-irradiated Listeria monocytogenes during refrigerated storage on raw or cooked turkey breast meat
    D W Thayer
    United States Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 61:979-87. 1998
  5. ncbi request reprint Irradiation and modified atmosphere packaging for the control of Listeria monocytogenes on turkey meat
    D W Thayer
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 62:1136-42. 1999
  6. ncbi request reprint Reduction of normal flora by irradiation and its effect on the ability of Listeria monocytogenes to multiply on ground turkey stored at 7 degrees C when packaged under a modified atmosphere
    D W Thayer
    Food Safety Research Unit, US Department of Agriculture, Eastern Regional Research Center, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 63:1702-6. 2000
  7. ncbi request reprint Reduction of Salmonella spp. and strains of Escherichia coli O157:H7 by gamma radiation of inoculated sprouts
    K T Rajkowski
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 63:871-5. 2000
  8. ncbi request reprint Alfalfa seed germination and yield ratio and alfalfa sprout microbial keeping quality following irradiation of seeds and sprouts
    K T Rajkowski
    US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 64:1988-95. 2001
  9. ncbi request reprint Changes in growth and antioxidant status of alfalfa sprouts during sprouting as affected by gamma irradiation of seeds
    Xuetong Fan
    Food Safety, Intervention Technologies Research Unit, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 67:561-6. 2004
  10. ncbi request reprint gamma-Radiation influences browning, antioxidant activity, and malondialdehyde level of apple juice
    Xuetong Fan
    Food Safety Research Laboratory, Eastern Regional Research Center, Agricultural Research Service, U S Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Agric Food Chem 50:710-5. 2002

Detail Information

Publications14

  1. ncbi request reprint Irradiation of food--helping to ensure food safety
    Donald W Thayer
    N Engl J Med 350:1811-2. 2004
  2. ncbi request reprint Inactivation of Escherichia coli O157:H7 and Salmonella by gamma irradiation of alfalfa seed intended for production of food sprouts
    Donald W Thayer
    Food Safety Intervention Technologies Research Unit, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:175-81. 2003
    ..3- and 2-log inactivations can be achieved with a 2-kGy dose of ionizing radiation, which will permit satisfactory commercial yields of sprouts from alfalfa seed contaminated with E. coli O157:H7 and Salmonella, respectively...
  3. ncbi request reprint Effect of irradiation temperature on inactivation of Escherichia coli O157:H7 and Staphylococcus aureus
    D W Thayer
    Food Safety Research Unit, USDA, ARS, NAA, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 64:1624-6. 2001
    ..The D10-values for E. coli O157:H7 at 4 and -20 degrees C were 0.39 +/- 0.04 and 0.98 +/- 0.23 kGy, respectively. The D10-values for S. aureus at 0 and -20 degrees C were 0.51 degrees 0.02 and 0.88 +/- 0.05 kGy, respectively...
  4. ncbi request reprint Fate of gamma-irradiated Listeria monocytogenes during refrigerated storage on raw or cooked turkey breast meat
    D W Thayer
    United States Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 61:979-87. 1998
    ..monocytogenes on raw and cooked meat...
  5. ncbi request reprint Irradiation and modified atmosphere packaging for the control of Listeria monocytogenes on turkey meat
    D W Thayer
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 62:1136-42. 1999
    ..0 kGy, there was a concentration-dependent CO2 inhibition of L. monocytogenes multiplication and/or recovery...
  6. ncbi request reprint Reduction of normal flora by irradiation and its effect on the ability of Listeria monocytogenes to multiply on ground turkey stored at 7 degrees C when packaged under a modified atmosphere
    D W Thayer
    Food Safety Research Unit, US Department of Agriculture, Eastern Regional Research Center, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 63:1702-6. 2000
    ..The populations of lactic acid bacteria and anaerobic or facultative bacteria were also reduced by irradiation. Irradiating ground turkey did not decrease its safety when it was contaminated following processing with L. monocytogenes...
  7. ncbi request reprint Reduction of Salmonella spp. and strains of Escherichia coli O157:H7 by gamma radiation of inoculated sprouts
    K T Rajkowski
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 63:871-5. 2000
    ..5 kGy or greater. Ionizing radiation is a process that can be used to reduce the population of pathogens on sprouts...
  8. ncbi request reprint Alfalfa seed germination and yield ratio and alfalfa sprout microbial keeping quality following irradiation of seeds and sprouts
    K T Rajkowski
    US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 64:1988-95. 2001
    ..The irradiation process can be used to increase the shelf life of alfalfa sprouts, and irradiating alfalfa seeds at doses up to 2 kGy does not unacceptably decrease the yield ratio for production of alfalfa sprouts...
  9. ncbi request reprint Changes in growth and antioxidant status of alfalfa sprouts during sprouting as affected by gamma irradiation of seeds
    Xuetong Fan
    Food Safety, Intervention Technologies Research Unit, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 67:561-6. 2004
    ..However, when the nutritive values were expressed on a per gram of seed basis, irradiation had no effect on the nutritive values of sprouts...
  10. ncbi request reprint gamma-Radiation influences browning, antioxidant activity, and malondialdehyde level of apple juice
    Xuetong Fan
    Food Safety Research Laboratory, Eastern Regional Research Center, Agricultural Research Service, U S Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Agric Food Chem 50:710-5. 2002
    ..The exclusion of oxygen from juices did not affect the reduction in browning due to irradiation but promoted the increase in FRAP values and decreased the irradiation-induced MDA formation...
  11. ncbi request reprint Volatile sulfur compounds in irradiated precooked turkey breast analyzed with pulsed flame photometric detection
    Xuetong Fan
    Eastern Regional Research Center, Agricultural Research Service, U S Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennslyvania 19038, USA
    J Agric Food Chem 50:4257-61. 2002
    ..Carbon disulfide was the only volatile sulfur compound that was reduced by irradiation. Concentrations of all volatile sulfur compounds decreased in both irradiated and nonirradiated samples stored at 5 degrees C...
  12. ncbi request reprint Irradiation D-values for Escherichia coli O157:H7 and Salmonella sp. on inoculated broccoli seeds and effects of irradiation on broccoli sprout keeping quality and seed viability
    Kathleen T Rajkowski
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:760-6. 2003
    ..11 kGy, respectively. With the irradiation process, a dose of up to 2 kGy can extend the shelf life of broccoli sprouts. A dose of > 2 kGy would have an adverse effect on the broccoli seed and decrease the yield of broccoli sprouts...
  13. ncbi request reprint Quality of irradiated alfalfa sproutst
    X Fan
    US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 64:1574-8. 2001
    ..Carotenoid content of sprouts irradiated at 1.71 and 2.57 kGy was higher than that of control at 7 days of storage. Irradiation did not have a consistent effect on chlorophyll content or color...
  14. ncbi request reprint Effect of gamma irradiation on unsporulated and sporulated Toxoplasma gondii oocysts
    J P Dubey
    U S Department of Agriculture, Beltsville Agriculture Research Center, MD 20705 2350, USA
    Int J Parasitol 28:369-75. 1998
    ..Raspberries inoculated with sporulated T. gondii oocysts were rendered innocuous after irradiation at 0.4 kGy. Results indicate that irradiation at 0.5 kGy is effective in "killing" coccidian oocysts on fruits and vegetables...