Food Science and Technology at Virginia Tech
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MICHAEL L. JAHNCKE
Professor
Director, VA Seafood AREC Research
Virginia Seafood Agricultural Research and Extension Center
102 South King Street
Hampton, VA 23669
P: (757) 727-4861
F: (757) 727-4871
E-mail: mjahncke@vt.edu


 
Education:
  Ph.D., Food Science, Cornell University, 1985
M.S., Fisheries Science, Cornell University, 1980
B.S., Fisheries-Wildlife Management, U.W.-Stevens Point, 1975

Research Interests:
  Safety and quality of wild catch and aquaculture species, sensory evaluation of seafood products, handling and processing of fish and fishery products, public, environmental, and animal health issues associated with aquaculture systems. Research programs have focused on the use of high hydrostatic pressure to eliminate pathogens in raw molluscan shellfish. A regional research program was also initiated to develop biosecurity protocols for aquaculture facilities based on the principles of Hazard Analysis Critical Control Point (HACCP).

Recent Publications:
 

 

Books

2002. Public, Animal and Environmental Aquaculture Health Issues. (M.L. Jahncke, E.S. Garrett, A. Reilly, R.E. Martin, and E. Cole, Editors.). John Wiley & Sons, Inc. 605 Third Avenue. New York, New York, 10158-0012. ISBN: 0-471-38772-X. 204 pp.

Chapters in Books

2002. Jahncke, M. L. and M.H. Schwarz.. Public, animal and environmental aquaculture health issues in industrialized countries. Chapter 3. Pages 67-102. In: Public, animal and environmental aquaculture health issues. (M. Jahncke, E.S. Garrett, A. Reilly, R.E. Martin, and E. Cole, Editors). John Wiley & Sons, Inc. 605 Third Avenue, New York, New York 10158-0012. 204 pp.

2002. Jahncke, M.L. Future considerations of global aquaculture. Chapter 6. Pages 167-181. In: Public, animal and environmental aquaculture health issues. (M. Jahncke, E.S. Garrett, A. Reilly, R.E. Martin, and E. Cole, Editors). John Wiley & Sons, Inc. 605 Third Avenue, New York, New York 10158-0012. 204 pp.

2001. Jahncke, M.L., C.L. Browdy, M.H. Schwarz, A. Segars, J.L. Silva, D. Smith, and A. Stokes. Preliminary application of hazard analysis critical control point (HACCP) principles as a risk management tool to control exotic viruses at shrimp production and processing facilities. In: The New Wave, Proceedings of the Special Session on Sustainable Shrimp Culture, Aquaculture 2001. (Craig L. Browdy and Darryl E. Jory, Eds.). The World Aquaculture Society, Baton Rouge, LA USA.

Chapters in Manuals

Jahncke, M.L. 2007. Aquaculture Product Safety and Consumer Health. JIFSAN Good Aquacultural Practices. JIFSAN/Univ. MD. Symons Hall, College Park, MD 20742

Jahncke, M.L. 2007. Traceability from Farm to Table. JIFSAN Good Aquacultural Practices. JIFSAN/Univ. MD. Symons Hall, College Park, MD 20742

Jahncke, M.L. 2007. Antibiotics: Use of Chemotherapeutics. JIFSAN Good Aquacultural Practices. JIFSAN/Univ. MD. Symons Hall, College Park, MD 20742

Jahncke, M.L. 2007. Use of HACCP Principles to Control Antibiotic Residues in Aquacultured Products. JIFSAN Good Aquacultural Practices. JIFSAN/Univ. MD. Symons Hall, College Park, MD 20742

Papers

Arritt, F., J. Eifert, and M. Jahncke. 2007. Detection and enumeration of Listeria monocytogenes in refrigerated and frozen seafood products. Food Protection Trends (In Press).

Arritt, F., J. Eifert, M. Jahncke, R. Williams, M. Pierson. 2007. Effects of Modified Atmosphere Packaging on Toxin Production by Clostridium botulinum in Raw Aquacultured Summer Flounder Fillets (Paralichthys dentatus). Journal of Food Protection. 70(5):1159-1164.

Pivarnik, L., D. Hicks, M. Jahncke, and K. Gall. 2007. Needs Assessment Survey of Sanitation, Good Manufacturing and Hygienic Training Practices for Food Processors, Wholesalers and Warehouse Operators. Food Protection Trends. 27(6):400-408.

Koo, J., M. Jahncke, P. Reno, H. Xiaopei, and P. Mallikarjunan. 2006. Inactivation of Vibrio parahaemolyticus and Vibrio vulnificus in Phosphate-Buffered Saline and in Inoculated Whole Oysters by High Pressure Processing. Journal of Food Protection 69(3):596-601

Koo, J. and M. Jahncke. 2006. Acid adapted Vibrio parahaemolyticus and Vibrio vulnificus enhance survival in acidic environments. Journal of Aquatic Food Products Technology: 15(2):47-56.

Soung-Hun, C., M.L. Jahncke, C. Koo-bok, and J. Eun. 2006. The effect of processing conditions on the properties of gelatin from skate (Raja kenojei) skins. Food Hydrocolloids. 20(6):810-816.

Scott, V.N., M. Wiedmann, D. Hicks, R. Collette, M. Jahncke, and K. Gall. 2005. Guidelines for Listeria testing of environmental, raw product and finished product samples in smoked seafood processing facilities. Food Protection Trends 25(1):23-34.

Smith-Asher, J.L., L. Granata, G. Flick, M. Jahncke, and R. Croonenberghs. 2005. Cleaning effectiveness and hand washing procedures in the removal of Listeria spp. in blue crab (Callinectes sapidus) processing plants. Journal of Aquatic Food Product Technology 14(1):39-53.

Xiaopei, H., P. Mallikarjunan, J. Koo, L. Andrews, and M. Jahncke. 2005. Comparison of kinetics on high pressure and irradiation inactivation of Vibrio vulnificus and Vibrio parahaemolyticus in buffer solutions and whole oysters. Journal of Food Protection. 68(2):292-295.

Soung-Hun, C., M. Jahncke, and J. Eun. 2004. Nutritional composition and microflora of the fresh and fermented skate (Raja kenojei) skins. International Journal of Food Sciences and Nutrition. 55(1):45-51.

2004. Gall, K., V.N. Scott, R. Collette, M. Jahncke, D. Hicks, and M. Martin. Implementing targeted good manufacturing practices and sanitation procedures to minimize Listeria monocytogenes contamination of smoked seafood products. Food Protection Trends 24(5):302-315.

2004. Jahncke, M., R. Collette, D. Hicks , M. Wiedmann, V. Scott , and K. Gall. Treatment options to eliminate, reduce, or control growth of Listeria monocytogenes on raw material and on finished product for the smoked fish industry. Food Protection Trends 24(8):612-619.

2004. Mowry, D.E., M.H. Schwarz, K.P. Hughes, M.L. Jahncke, S.A. Smith. Efficacy of Hydrogen Peroxide in Marine Recirculating Aquaculture Systems holding Summer Flounder (Paralichthys dentatus). Journal of Applied Aquaculture. (In Press).

2004. *Xiaopei, H., P. Mallikarjunan, J. Koo, L. Andrews, and M. Jahncke. Comparison of kinetics on high pressure and irradiation inactivation of Vibrio vulnificus and Vibrio parahaemolyticus in buffer solutions and whole oysters. Journal of Food Protection (In Press).

2003. Andrews, L., M.L. Jahncke, and K. Mallikarjunan. Low dose gamma irradiation to reduce pathogenic Vibrio spp. in live oysters. J. Aquatic Food Prod. Technol. (12(3):71-84).

2002. IFT. IFT Expert Report. Emerging microbiological food safety issues-implications for control in the 21st century. Institute of Food Technologists. Scientific and technical panel: Potter, M. (Panel Chair), D. Archer, A. Benson, F. Busta, J. Dickson, M. Doyle, J. Farber, B. Finlay, M. Goldblatt, C. Hedberg, D. Hoover, M. Jahncke, L. Jaykus, C. Kaspar, A. Liang, J. Lindsay, J. Pestka, M. Pierson, P. Slade, R. Tompkin, and M. Tortorello. An expert report of the Institute of Food Technologists. 107 pp.

2002. Jahncke, M.L., and D. Herman. Control of food safety hazards during cold-smoked fish processing. J. Food Sci. Special Supplement. 66(7):S-1104-S-1111.

2001. IFT/FDA. IFT Expert Report. Processing parameters needed to control pathogens in cold smoked fish. Scientific and technical panel: Busta, F., G.E. Bledsoe, G.J. Flick, L. Gram, D. Herman, M.L. Jahncke, and Dr. R. Ward. A report of the Institute of Food Technologists for the Food and Drug Administration of the U.S. Department of Health and Human Services. March 29, 2001. IFT/FDA Contract No. 223-98-2333. Task Order 2.

2001. Jahncke, M.L. and D. Herman. Processing parameters needed to control pathogens in cold-smoked fish: Chapter VI. Control of food safety hazards during cold-smoked fish processing. Special Supplement. J. Food Sci. 66(7):S-1104-1112.

2000. Garrett, E.S., M.L. Jahncke, and R.E. Martin. Applications of HACCP principles to address food safety and other issues in aquaculture: An overview. J. Aqua. Food Prod. Technol. 9(1):5-20.

2000. Hoke, M., M.L. Jahncke, J.L. Silva, and J. Hearnsberger. Stability of frozen mince from channel catfish frames. J. Food Sci. 65(6):1083-1086.

2000. Seaborn, G., M.L. Jahncke, and T.I.J. Smith. Use of fatty acid profiles to distinguish wild from cultured fish: A forensics tool. North American Journal of Fisheries Management. 20:618-626.

2000. Suvanich, V., M.L. Jahncke, and D. Marshall. Changes in selected chemical quality characteristics of channel catfish frame mince during chill and frozen storage. J. Food Sci. 65(1):24-29.

2000. Suvanich, V., D.L. Marshall, and M.L. Jahncke. Color and textural properties of gels prepared from catfish (Ictalurus punctatus) frame mince and surimi as affected by storage conditions. J. Food Sci. 65(1):151-154.

2000. Jahncke, M.L. and M.H. Schwarz. Application of hazard analysis and critical control point (HACCP) principles as a risk management approach for recirculating aquaculture systems (RAS). The Third Annual Conference on Recirculating Aquaculture. Roanoke, VA, July 20-23. pp 45-49.

2000. Schwarz, M.H. and M.L. Jahncke. Summer Flounder (Paralichthys dentatus) recirculating mariculture initiative. The Third Annual Conference on Recirculating Aquaculture. Roanoke, VA, July 20-23. pp 3-6.

Selected Funding Sources:
  Virginia Sea Grant
Virginia Graduate Marine Science Consortium
National Sea Grant Program
Commercial Fish and Shellfish Technology (CFAST)

CFAST Profile


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