Food Science & Technology: Personnel

Jinru Chen

 

Description of Research Interests

• Molecular detection and characterization of foodborne bacterial pathogens
• Epidemiological typingGrowth, survival, death of and toxin production by pathogens in foods as influenced by thermal treatment, pH, acidity, chemical preservatives, water activity and modified atmosphere are being studied.
• Bacterial stress response
• Microbial physiology and pathogenicity
• Control of pathogens in food

Courses Taught

FDST 4000: Food Science Seminar

Selected Recent Publications

Chen, J. 2003. Contemporary monitoring methods. In R. Schmidt (ed.) Food Safety Handbook. John Wiley & Sons, Inc. Hoboken, NJ. pp. 195-208.

Chen, J. 2000. ATP bioluminescence: a rapid indicator for environmental hygiene and microbial quality of meat. Dairy, Food Environ. San. 20:617-620.

Chen, J., and M. W. Griffiths. 2000. Magnetic capture hybridization polymerase chain reaction. In J. F. T. Spencer and A. L. R. de Spencer (ed.) Methods in Biotechnology. Vol.12: Food Microbiology Protocols. Humana Press Inc., Totowa, N.J. pp. 107-110.

Cha, D. S., J. Chen, H. J. Park, and M. S. Chinnan. 2003. Inhibition of Listeria monocytogenes in tofu by application of polyethylene film coated with cellulosic solution containing nisin. Int. J. Food Sci. Technol. 38:499-503.

Jung, Y. S., J. F. Frank, R. E. Brackett, and J. Chen. 2003. Polymerase chain reaction detection of Listeria monocytogenes on frankfurters with oligonucleotide primers targeting internalin AB. J. Food Prot. 66:237-241.

Islam, M., J. Chen, M. P. Doyle, and M. S. Chinnan. 2002. Control of Listeria monocytogenes on turkey frankfurters by generally-recognized-as-safe preservatives. J. Food Prot. 65:1411-1416.
Guo, X., M. van Lersel, J. Chen, R. E. Brackett, and L. R. Beuchat. 2002. Evidence of association of Salmonellae with tomato plants grown hydroponically in inoculated nutrient solution. Appl. Environ. Microbiol. 68:3639-3643.

Li, Y., R. E. Brackett, J. Chen, and L. R. Beuchat. 2002. Mild heat treatment of lettuce enhances growth of Listeria monocytogenes during subsequent storage at 5oC or 15oC. Appl. Microbiol. 92:269-275.

Islam, M., J. Chen, M. P. Doyle, and M. S. Chinnan. 2002. Effect of selected generally-recognized-as-safe preservative sprays on growth of Listeria monocytogenes on chicken luncheon meat. J. Food Prot. 65:794-798.

Guo, X., J. Chen, R. E. Brackett, and L. R. Beuchat. 2002. Survival of Salmonella on tomatoes stored at high relative humidity, in soil, and on tomatoes in contact with soil. J. Food Prot. 65:274-279.

Beuchat, L. R., E. Frandberg, T. Deak, S. M. Alzamora, J. Chen, S. Guerrero, A. Lopez-Malo, I. Ohlsson, M. Olsen, J. M. Peinado, J. Schnurer, M. I. de Siloniz, and J. Tornai-lehoczki. 2001. Performance of mycological media in enumerating desiccated food spoilage yeasts: an interlaboratory study. Int. J. Food Microbiol. 70:89-96.

Guo, X., J. Chen, R. E. Brackett, and L. R. Beuchat. 2001. Survival of Salmonella on and in tomato plants from the time of inoculation at flowering through fruit ripening. Appl. Environ. Microbiol. 67: 4760-4764.

Sharma, M., L. R. Beuchat, M. P. Doyle, and J. Chen. 2001. Fate of salmonellae in calcium supplemented orange juice at refrigeration temperature. J. Food Prot. 64:2053-2057.

Deak, T., J. Chen, D. D. Golden, M. S. Tapia, J. Tornai-Lehoczki, B. C. Viljoen, M. T. Wyder, and L. R. Beuchat. 2001. Comparison of dichloran glycerol (DG18) agar with general purpose mycological media for enumerating food-spoilage yeasts. Int. J. Food Microbiol. 67:49-54.

Sharma, M., L. R. Beuchat, M. P. Doyle, and J. Chen. 2001. Survival of salmonellae in pasteurized, refrigerated calcium fortified orange juice. J. Food Prot. 64:1299-1304.

Mao, Y., M. P. Doyle, and J. Chen. 2001. Insertion mutagenesis of wca reduces acid and heat tolerance of enterohemorrhagic Escherichia coli O157:H7. J. Bacteriol. 183:3811-3815.

Li, Y., R. E. Brackett, J. Chen, and L. R. Beuchat. 2001. Survival and growth of Escherichia coli O157:H7 inoculated onto cut lettuce before or after heating in chlorinated water, followed by storage at 5oC or 15oC. J. Food Prot. 63:305-309.

Chen, J., and M. W. Griffiths. 2001. Detection of Salmonella and simultaneous detection of Salmonella and Shiga toxin producing Escherichia coli using magnetic capture hybridization polymerase chain reaction. Lett. Appl. Microbiol. 32:7-11.

Guo, X., J. Chen, L. R. Beuchat, and R. E. Brackett. 2000. PCR detection of Salmonella enterica serotype Montevideo in and on raw tomatoes using primers derived from hilA. Appl. Environ. Microbiol. 66:5248-5252.

Burnett, S. L., J. Chen, and L. R. Beuchat. 2000. Attachment of Escherichia coli O157:H7 to the surface and internal structure of apples as detected by confocal scanning laser microscopy. Appl. Environ. Microbiol. 66:4679-4687.

Deak, T., J. Chen, and L. R. Beuchat. 2000. Molecular characterization of Yarrowia lipolytica and Candida zeylanoides isolates from poultry meat. Appl. Environ. Microbiol. 66:4340-4344.

Chen, J., and M. W. Griffiths. 1999. Cloning and nucleotide sequencing of the gene encoding the universal stress protein of Escherichia coli O157:H7 isolated from the Jack-in-a-Box outbreak. Lett. Appl. Microbiol. 29:103-107.

Goodridge, L. D., J. Chen, and M. W. Griffiths. 1999. The use of a fluorescent bacteriophage assay for the detection of Escherichia coli O157:H7 in ground beef and raw milk. Int. J. Food Microbiol. 47:43-50.

Goodridge, L. D., J. Chen, and M. W. Griffiths. 1999. Development and characterization of a fluorescently-labeled bacteriophage assay for the detection of Escherichia coli O157:H7. Appl. Environ. Microbiol. 65:1397-1404.

Chen, J., and M. W. Griffiths. 1998. PCR differentiation of Escherichia coli from other gram-negative bacteria using primers driven from the nucleotide sequences flanking the gene encoding the universal stress protein (uspA). Lett. Appl. Microbiol. 27:369-371.

Baustista, D. A., J. Chen, S. Barbut, and M. W. Griffiths. 1998. Use of an autoluminescent Salmonella hadar to monitor survival on poultry carcasses following lactic acid treatment. J. Food Prot. 11:1439-1445.

Rasamran, H., J. Chen, A. R. Hill, and M. W. Griffiths. 1998. Fate of bioluminescent Listeria monocytogenes and Escherichia coli O157:H7 in Camembert and feta cheese. J. Dairy Sci. 81:1810-1817.

Chen, J., and M. W. Griffiths. 1998. Detection of verotoxigenic E. coli using magnetic capture hybridization polymerase chain reaction (MCH-PCR). Appl. Environ. Microbiol. 64:147-152.

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