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United States Department of Agriculture

Agricultural Research Service

Current Research-Radio Frequency
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Commercial radio frequency units are used in industrial applications to rapidly heat a variety of materials.   Because of the speed of the process, it may be applied to products normally considered to be heat sensitive, such as in-shell walnuts.   A collaborative project, lead by Juming Tang of Washington State University, has developed a radio frequency treatment to disinfest in-shell walnuts of postharvest insect pests.   A recent pilot study at a large walnut processing facility demonstrated the potential utility of the treatment.  Current projects include the development of radio frequency treatments for dried pulses.

 

Cooperator Maria Monzon treating walnuts with radio frequency

 

Project Home Page

 

Non-Chemical Postharvest Insect Control in Fruits and Nuts with Dielectric Heating

 

Collaborators

 

Juming Tang , WashingtonState University, Pullman

Shaojin Wang , WashingtonState University, Pullman

Elizabeth Mitcham, Cooperative Extension, Universityof California, Davis

James Hansen, USDA-ARS, Yakima, WA (retired)

Guy Hallman, USDA-ARS, Weslaco, TX

Jack Armstrong, USDA-ARS, Hilo, HI (retired)

Steve Drake, Wenatchee, WA (retired)

 

Publications

Pdf versions of publications may be downloaded by following the links.  For publications with no links, copies may be obtained by email request to: judy.johnson@ars.usda.gov

Wang, Y., Zhang, L., Johnson, J., Gao, M., Tang, J., Powers, J.R., Wang, S. Developing hot air-assisted radio frequency drying for in-shell macadamia nuts. Food Bioprocess Technology. pp 11. 2013

Jiao, S., Johnson, J. A., Tang, J., Wang. S.  Industrial-scale radio frequency treatments for inset control in lentils.  Journal of Stored Product Research. 48: 143-148. 2012

Jiao, S., Tang, J., Johnson, J. A., Tiwari, G., Wang, S. Determining radio frequency heating uniformity of mixed beans for disinfestation treatments. Transactions of the ASABE. 54: 1847-1855. 2011

Jiao, S.; Wang, S.; Johnson, J. A., and Tang, J. Industrial-scale radio frequency treatments for insect control in lentils. IMPI 45th Annual Microwave Power Symposium. pp 49-54. New Orleans, LA. 2011

Jiao, S., Johnson, J. A., Tang, J., Tiwari, G., Wang, S. Dielectric properties of cowpea weevil, black-eyed peas and mung beans with respect to the development of radio frequency heat treatments.  Biosystems Engineering. 108: 280-291. 2011

Johnson, J. A., Wang, S., Jiao, S., Tang, J. Development of radio frequency treatments for dried pulses. Ann. Intl. Res. Confr. Methyl Bromide Alternatives and Emissions Reductions. pp. 51.1-3.  Orlando, FL. Nov. 2010.

Wang, S., Tiwari, G., Jiao, S., Johnson, J. A., Tang, S. Treatment protocol development for disinfesting legumes using radio frequency energy.  IMPI 44th Annual Microwave Power Symposium. 6 pp. Denver, CO.  July, 2010.

Jiao, S., Tang, J., Johnson, J. A., Tiwari, G., Wang, S. Determining radio frequency heating uniformity of mixed beans during disinfestation treatments.  IMPI 44th Annual Microwave Power Symposium. 6 pp. Denver, CO.  July, 2010.

Johnson, J. A., Wang, S., Tang, J. Radio frequency treatments for insect disinfestation of dried legumes. 10th Intn. Working Conference on Stored Product Protection. pp. 691-697. Estoril, Portugal, June-July, 2010.

Wang, S., Tiwari, G., Jiao, S., Johnson, J. A., Tang, J. Developing postharvest disinfestation treatments of legumes using radio frequency energy.  Biosystems Engineering.  105: 341-349. 2010

Wang, S., Tiwari, G., Jiao, S., Johnson, J. A., Tang, J. Developing Postharvest Disinfestation Treatments for Legumes Using Radio Frequency Energy. ASABE Annual Intn Meeting, 10pp. Pittsburgh, PA,June, 2010

Guo, W., Wang, S., Tiwari, G. Johnson, J. A., and Tang, J.Temperature and moisture dependent dielectric properties of legume flour associated with dielectric heating. LWT - Food Sci. Tech. 43: 193-201.  2010

Johnson, J. A., Wang., and Tang. J. Radio frequency treatments to disinfest dried pulses of cowpea weevil. Ann. Intl. Res. Confr. Methyl Bromide Alternatives and Emissions Reductions. pp. 76.1-4.  San Diego, CA. Nov. 2009.

Guo, W., Wang, S., Johnson, J. A., Tang, J. Temperature and Moisture Dependent Dielectric Properties of Legume Flours Associated with Dielectric Heating. Proc., ASABE Annual Int. Meeting, 10 pp. Reno, NV June, 2009

Wang, S., Johnson, J. A., Hansen, J. D. and Tang, J.  Determining thermotolerance of fifth-instar Cydia pomonella(L.) (Lepidoptera: Tortricidae) and Amyelois transitella(Walker) (Lepidoptera: Pyralidae) by three different methods. J. Stored Products Res. 45: 184-189. 2009

Wang, S., Monzon, M., Johnson, J. A., Mitcham, E. J., Tang, J. Industrial-scale radio frequency treatments for insect control in walnuts I: Heating uniformity and energy efficiency.  Postharvest Bio. and Tech.  45: 240-246.  2007

Wang, S., Monzon, M., Johnson, J. A., Mitcham, E. J., Tang, J. Industrial-scale radio frequency treatments for insect control in walnuts II: Insect mortality and product quality.  Postharvest Bio. and Tech.  45: 247-253.  2007 

Hansen, J. D. and Johnson, J. A.  Introduction.  In Tang, J., Micham, E., Wang, S., and Lurie, S. (ed.)  Heat Treatments for Postharvest Pest Control: Theory and Practice.  CABI Publishing, Wallingford, Oxforshire, UK; Cambridge MA. pp. 1-26.  2007.

Tang, J., Wang, S., Johnson, J. A.  Biology and thermal death kinetics of selected insects. In Tang, J., Micham, E., Wang, S., and Lurie, S. (ed.)  Heat Treatments for Postharvest Pest Control: Theory and Practice.  CABI Publishing, Wallingford, Oxforshire, UK; Cambridge MA. pp. 133-161.  2007.

Monzon, M. E., Biasi, B., Simpson, T. L., Johnson, J., Feng, X., Slaughter, D. C., Mitcham. E. J.  Effect of radio frequency heating as a potential quarantine treatment on the quality of ‘Bing’ sweet cherry fruit and mortality of codling moth larvae. Postharvest Bio. and Tech. 40: 197-203.  2006.

Mitcham, E. J., Monzon, M., Johnson, J. A., Wang, S., Tang, J.  Insect control and walnut quality following large-scale industrial radio frequency treatments.  Ann. Intl. Res. Confr. Methyl Bromide Alternatives and Emissions Reductions. pp. 78.1-4.  Orlando, Fl.  Nov. 2006.

Wang, S., Tang, J., Johnson, J. A., Monzon, M., Mitcham, E. J.  Industrial-scale radio frequency treatments for insect control in in-shell walnuts.  Proc. Amer. Soc. Agric. Biol. Engineers Int. Paper # 066046, 10 pp.  Portland, OR. July 2006.

Wang, S., Johnson, J. A., Tang, J., Yin, X.   Heating condition effects on thermal resistance of fifth-instar Amyelois transitella (Walker) (Lepidoptera: Pyralidae).   J. Stored Products Res. 41: 469-478.   2005.

Johnson, J. A., Valero, K. A., Wang, S., Tang, J.   Thermal death kinetics of red flour beetle (Coleoptera: Tenebrionidae).   J. Econ. Entomol.   97: 1868-1873.   2004.

Mitcham, E. J., Veltman, R. H., Feng, X., de Castro, E., Johnson, J. A., Simpson, T. L., Biasi, W. V., Wang, S., Tang, J.   Application of radio frequency treatments to control insects in in-shell walnuts.   Postharvest Bio. and Tech.   33: 93-100.   2004.

Tang, J., Wang, S., Mitcham, E., Johnson, J.A., Hansen, J.D., Hallman, G.   Update on development of postharvest pest control treatments for nuts, citrus and tropical fruits using RF energy.   Ann. Intl. Res. Confr. Methyl Bromide Alternatives and Emissions Reductions.   pp. 75.1-4.   Orlando, FL,   Nov.   2004.  

Wang, S., Tang, T., Johnson, J. A., Mitcham, E., Hansen, J. D., Hallman, G., Drake, S. R., Wang, Y.   Dielectric properties of fruits and insect pests as related to radio frequency and microwave treatments.   Biosystems Engineering   85: 201-212.   2003.

Johnson, J. A., Wang, S., and Tang, J.   Thermal death kinetics of fifth-instar Plodia interpunctella (Lepidoptera: Pyralidae).   J. Econ. Entomol.   96: 519-524.   2003.

Tang, J., Wang, S., Hansen, J., Johnson, J., Mitcham, E., Drake, S., Hallman. G. Postharvest control of insect pests in nuts and fruits based on radio frequency energy. Postharvest Unlimited, Leuven, Belgium, June   2002.   published in Acta Horticulture 599: 175-181.   2003.  

Wang, S., Tang, J., Johnson, J. A., Mitcham, E., Hansen, J. D., Cavalieri, R. P., Bower, J., Biasi, B.   Process protocols based on radio frequency energy to control field and storage pests in in-shell walnuts.   Postharvest Bio. and Tech.   26: 265-273.   2002.

Wang, S., Tang, J., Johnson, J. A., and Hansen, J. D.   Thermal-death kinetics of fifth-instar Amyelois transitella (Walker) (Lepidoptera: Pyralidae).   J. Stored Products Res. 38: 427-440.   2002.

Mitcham, E. J., Tipping, C., Simpson, T., Tang, J., Hansen, J., Wang, S., Brower, J., Biasi, B., Johnson, J.   Control of arthropod pests after harvest using CA, GRAS fumigants or radio frequency heating.   Proc. Int. Symp. Recent Drying & Storage Technology of Foods and Agricultural Products.   pp. 14-19.   Seoul, Korea.   Nov. 2001  

Johnson, J. A., Wang, S., and Tang, T.   Thermal tolerance of navel orangeworm and Indianmeal moth.   Ann. Intl. Res. Confr. Methyl Bromide Alternatives and Emissions Reductions.   p. 60.1-4.  San Diego, CA.   Nov.   2001.  

 


Last Modified: 12/11/2014
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