Dr. Randolph Beaudry Professor and Acting Chair A288 Plant and Soil Sciences Michigan State University East Lansing, MI 48824-1325 Phone: 517/355-5191      Academic office: ext 1303      Chair office: ext 1361 Fax: 517/353-0890 Email: beaudry@msu.edu

Joined Department: March 1989

Appointment:      50% Extension      50% Research

Education:      Ph.D., Horticulture, University of Georgia, 1989      M.S., Horticulture, University of Georgia, 1985      B.S., Horticulture, The Ohio State University, 1981 Research Interests: Dr Beaudry's research activities focus on preserving the postharvest quality of fruits and vegetables. Specific areas of expertise include modified atmosphere packaging, controlled-atmosphere storage, non-destructive quality assessment, flavor analysis, apple scald physiology and use of volatiles to inhibit decay. Spinoffs from research have lead to the development of a number of practical devices or methods for which patent applications have been submitted.   Recent efforts have elucidated the relationship between package O2 and product respiration, temperature and package film permeability. Models have been created that permit the prediction of the O2 in the package under essentially any environmental condition for a variety of plant products. Special emphasis has been placed on the development of an apple slice product. To this end, identifying a naturally-derived, volatile compound that inhibits fungal decay, but imparts little to no flavor taint. Non-destructive quality assessment techniques include research on the use of acoustic impulse elasticity, force/deformation relationships, volatile emanations and chloroplast fluorescence.   Dr. Beaudry's research efforts are supported by a well-equipped laboratory suite. Instrumentation and facilities in use include dedicated O2/CO2 analyzers, numerous gas chromatographs, GC/mass spectrometer, chloroplast fluorometer, wet lab, sterile hood, over 400 CA chambers, 16 controlled environment rooms, packaging facility, computer lab, etc. Partnering relationships have been established with the MSU School of Packaging, Agricultural Engineering and Food Science and Human Nutrition.   Much of Dr. Beaudry's research service-oriented. Examples would include carrot storage experiments with Gerber Foods Co.; root pruning effects on apple quality and storability and apple storage techniques. Recently, applied research has been focused on the reduction of pesticide residues. Projects include evaluating non-chemical control strategies for apple scald and screening of available biocontrol agents for the control of storage diseases. Dr. Beaudry's Extension component also includes his activities as coordinator of annual Michigan Apple Maturity Program, designed to improve quality of Michigan apple fruit - use of conference call and FAX with regional CES agents. Information thus shared was passed on to Michigan shippers, packing houses, storage operators and growers.   Dr. Beaudry is also responsible for organizing and conducting the annual Controlled Atmosphere (CA) Storage Clinics. The CA Clinic audience is primarily apple storage operators from the Great Lakes region and Canada. Storage operators are kept up-to-date on most recent changes in CA and packinghouse regulations, methods for increasing efficiency of CA operations and techniques for improving their ability to maintain high fruit quality. Over 700 pages of notes have been distributed in three indexed volumes of the MSU CA Clinic Notebook.   Selected Recent Publications: Nanthachai, N., Kosittrakun, M., and R. Beaudry. 2007. Absorption of 1-MCP by fresh produce. Postharvest Biol. Technol.43:291-297. Gunterus, A., L.V. Roze, R. Beaudry, and J.E. Linz. 2007. Ethylene inhibits aflatoxin biosynthesis in Aspergillus parasiticus grown on peanuts. Food Microbiology (in press). doi:10.1016/j.fm.2006.12.006. Sugimoto N., S. Park, S. van Nocker, and R. Beaudry. 2007. Gene expression associated with apple aroma biosynthesis. Acta Horticulturae (in press). Lee Y.S., Beaudry R., Kim J.N., and B.R. Harte. 2006. Development of a 1-Methylcyclopropene (1-MCP) Sachet Release System. J Food Sci 71(1):1-6. Cañoles, M.A., Li, C., Howe, G. and R.M. Beaudry.  2006. Deficiency of linolenic acid in Lefad7 mutant tomato changes the volatile profile and sensory perception of disrupted leaf and fruit tissue. J. Amer. Soc. Hortic. Sci.131:284-289. Vallejo, F., and R.M. Beaudry. 2006. Depletion of 1-MCP by ‘non-target’ materials from fruit storage facilities. Postharvest Biol. Tech. 40:177-182. Fan, L., J. Song, R. Beaudry, and P.D. Hildebrand. 2006. Effect of hexanal vapor on spore viability of Penicillium expansum, lesion development on whole apples, and fruit volatile biosynthesis. J. Food Sci. 17(3):105-109. Park, S., N. Sugimoto, M.D. Larson, R. Beaudry, and S. van Nocker. 2006. Identification of genes with potential roles in apple fruit development and biochemistry through large-scale statistical analysis of expressed sequence tags. Plant Physiol. 140:811-824. Guevara, J.C., E.M. Yahia, R.M. Beaudry, and L. Cedeño. 2006. Modeling the influence of temperature and relative humidity on respiration rate of prickly pear cactus cladodes. Postharvest Biol. Technol. 41:260-265. Beaudry, R.M., V. Luckanatinvong, and T. Solomos. 2006. Maintaining quality with CA and MAP. In: A.C. Purvis, W.B. McGlassen, and S. Kanlayanarat (eds.), Proc. Int’l Conference on Managing Quality in Chains (MQUIC). Acta Horticulturae 712:245-252. Ferenczi, A., Song J., Tian M., Vlachonasios K., Dilley D., Beaudry R. 2006. Volatile ester suppression and recovery following 1-methylcyclopropene application to apple fruit J. Amer. Soc. Hort. Sci.131(5):691-701. Lu, R., A. Srivastava, and R. Beaudry. 2005. A new bioyield tester for measuring apple fruit firmness. Amer. Soc. Ag. Eng. 21(5):893-900. Carrasco, B., J.F. Hancock, R.M. Beaudry, and J.B. Retamales. 2005. Chemical composition and inheritance patterns of aroma in Fragaria×ananassa and Fragaria virginiana progenies. HortScience, 40:1649-1650. Watkins, C.B., M. Erkan, J.F. Nock, K.A. Iungerman, R.M. Beaudry, and R.E. Moran 2005. Harvest date effects on maturity, quality and storage disorders of ‘Honeycrisp’ apples. HortScience, 40:164-169. Gao, Zhifang, S. Jayanty, R. Beaudry, and W. Loescher 2005. Sorbitol transporter expression in apple sink tissues: Implications for fruit sugar accumulation and watercore development. J. Amer. Soc. Hortic. Sci. 130(2):261-268. Roze, L.V., A.M. Calvo, A. Gunterus, R. Beaudry, M. Kall, and J.E. Linz. 2004. Ethylene modulates development and toxin synthesis in Aspergillus possibly via an ethylene sensor-mediated signalling pathway.  J. Food Protection. 67:438-447. Mir, N., M. Canoles, R. Beaudry, E. Baldwin and C. Mehla.  2004.  Inhibition of tomato ripening by 1-methylcyclopropene. J. Amer. Soc. Hort. Sci. 129:112-120. Jayanty, S., M. Canoles, and R.M. Beaudry.  2004.  Concentration-dependence of ‘Redchief Delicious’ apple fruit softening and chlorophyll fluorescence to repeated doses of 1-methylcyclopropene. J. Amer. Soc. Hort. Sci.129:760-765. Roze, L.V., R.M. Beaudry, N.P. Keller, and J.E. Linz. 2004. Reculation of aflatoxin synthesis by FadA/cAMP/protein kinase A signalling in Aspergillus parasiticus.  Mycopathologia, 158:219-232. Watkins, C.B.,  J.F. Nock , S.A. Weis, S. Jayanty,  and R.M. Beaudry. 2004. Storage temperature, diphenylamine, and pre-storage delay effects on soggy breakdown, soft scald and bitter pit of ‘Honeycrisp’ apples. Postharvest Biology and Technology 32:213-221. Tong, C., D.S. Bedford, J.L. Luby, FM. Prompson, R.M. Beaudry, J.P. Mattheis, C.B. Watkins, and S.A. Weis. 2003. Location and temperature effects on soft scald in ‘Honeycrisp’ apples. HortScience 38:1153-1155. Goodridge, CF; R.M. Beaudry; J.J. Pestka, and D.M. Smith. 2003. Solid phase microextraction-gas chromatography for quantifying headspace hexanal above freeze-dried chicken myofibrils. J. Ag. and Food Chem. 51:4185-4190. Goodridge, C.F., R.M. Beaudry, J.J. Pestka, and D.M. Smith. 2003. ELISA for monitoring lipid oxidation in chicken myofibrils through quantification of hexanal-protein adducts.  J. Agric. Food Chem.51:4185-4190. Beaudry, R.M. 2002. Modified Atmosphere Packaging. In "The Commercial Storage of Fruits, Vegetables, and Florist and Nursery Stocks", USDA Handbook 66, K. Gross, ed. (in press). Mir, N., and R.M. Beaudry 2002. Atmosphere Control Using Oxygen and Carbon Dioxide. In "Fruit Quality and its Biological Basis" M. Knee, ed. Sheffield Academic Press, Sheffield, U.K. Jayanty, S., J. Song, N.M. Rubinstein, A. Chong, and R.M. Beaudry. 2002. Temporal relationship between ester biosynthesis and ripening events in banana fruit. J. Amer. Soc. Hortic. Sci. 127:998-1005. Mir, N., E. Curell, N. Khan, M. Whitaker, and R.M. Beaudry. 2001. Harvest maturity, storage temperature, and 1-MCP application frequency alter firmness retention and chlorophyll fluorescence of ‘Redchief Delicious’ apples. J. Amer. Soc. Hort. Sci. 126:618-624. Mir, N. and R.M. Beaudry. 2001. Use of 1-MCP to reduce the requirement for refrigeration in the storage of apple fruit. Proc. 4th Int’l. Conf. on Postharvest Physiology, Acta Hort, 553:577-580. Mir, N. and R.M. Beaudry. 2001. Use of a gas-release patch to regulate ethylene-mediated plant responses. Proc. 4th Int’l. Conf. on Postharvest Physiology, Acta Hort, 553:581-582. Mir, N. and R.M. Beaudry. 2001. Interplay of O2 and C2H4 on climacteric respiration. Proc. 4th Int’l. Conf. on Postharvest Physiology, Acta Hort, 553:651-655. Lu, R., D.E. Guyer, and R.M. Beaudry 2000. Determination of firmness and sugar content of apples using near-infrared diffuse reflectance. J. Textural Stud. 31:615-630 Beaudry, R.M. 2000. Introduction. Workshop Proceedings: "Aroma generation by horticultural products: What can we control?" HortScience, 35:1001-1002. Beaudry, R.M. 2000. Responses of horticultural commodities to low oxygen: limits to the expanded use of modified atmosphere packaging. HortTechnology. 10:491-500. Beaudry, R.M. 1999. Effect of O2 and CO2 partial pressure on selected phenomena affecting fruit and vegetable quality. Postharvest Biol. Tech. 15:293-303. Mir, N., and R.M. Beaudry. 1999. Effect of superficial scald suppression by diphenylamine application on volatile aroma biosynthesis. J. Ag. Food Chem. 47:7-11. Mir, N., M. Wendorf and R.M. Beaudry. 1999. Detection of a post-storage burst in 6-methyl-5-hepten-2-one from apple fruit. J. Amer. Soc. Hort. Sci. 124:173-176. Lakakul, R., R.M. Beaudry and R. Hernandez. 1999. Modeling respiration of apple slices in modified-atmosphere packages. J. Food Sci. 64:105-110. Mir, N., M. Wendorf, R. Perez and R.M. Beaudry. 1998. Chlorophyll fluorescence as affected by some superficial defects in stored apple. J. Hort. Sci. Biotech. 73(6):846-850. Beaudry, R., W. Deng, R. Lakakul and J. Song. 1998. Interactions between the package and the packaged product: Effects on respiratory and aroma volatiles. Proc. Int’l Postharvest Science Conference: Postharvest 96, August 4 - 9, 1996, Taupo, New Zealand, R. Bielski, W. Laing, and C. Clarke, eds. Acta Horticulturae 464:327 - 332. Song, J., R. Leepipattanawit, W. Deng and R. Beaudry. 1998. Hexanal vapor acts as a residueless antifungal agent that enhances aroma biosynthesis in apple fruit. Proc. Int’l Postharvest Science Conference: Postharvest 96, August 4 - 9, 1996, Taupo, New Zealand, R. Bielski, W. Laing, and C. Clarke, eds. Acta Horticulturae 464:327 219- 224. Song, J, L. Fan and R.M. Beaudry. 1998. Application of solid phase microextraction and GC/TOFMS for rapid analysis of flavor volatiles in tomato and strawberry fruits. J. Ag. Food Chem. 46(9):3721-3726. Mir, N., M. Wendorf, R. Perez and R.M. Beaudry. 1998. Chlorophyll fluorescence in relation to superficial scald development in apple. J. Amer. Soc. Hort. Sci. 123(5):887-892. Beaudry, R.M., C.E. Moggia, J.B. Retamales and J.F. Hancock. 1998. Effect of maturity, shipping mode and storage regime on the quality of 'Ivanhoe' and 'Bluecrop' blueberry fruit transported from Chile. HortScience 33:313-317. Perez, R. and R.M. Beaudry. 1998. Fractional surface coating technique to modify gas diffusion and ripening in banana (Musa sp.). J. Amer. Soc. Hort. Sci. 123(1):115-118. Song, J., W. Deng, L. Fan, J. Verschoor and R.M. Beaudry. 1997. Aroma volatile and quality changes in modified atmosphere packaging. Proc. Seventh Int'l Controlled Atmosphere Research Conf.: Fresh-Cut Fruits and Vegetables and MAP, 13-18 July, 1997, Univ. of California, Davis, CA., J. Gorny, ed. pp. 89-95. Silva, S.M., J.E. Everard, R.C. Herner and R.M. Beaudry. 1997. Glycolytic respiratory intermediates in asparagus tips under low oxygen/high carbon dioxide atmospheres. Proc. Seventh Int'l Controlled Atmosphere Research Conf., Vegetables and Ornamentals, July 13-18, Univ. of California, Davis, CA., M. Saltveit, ed. pp. 13-19. Leepipattanawit, R., R.M. Beaudry and R.J. Hernandez. 1997. Control of decay in modified-atmosphere packages of sliced apples using 2-nonanone. J. Food Sci. 62:1043-1047. Beaudry, R.M., J. Song, W. Deng, M. Mir, P. Armstrong and E.J. Timm. 1997. Chlorophyll fluorescence: A nondestructive tool for quality measurements of stored apple fruit. Trans. ASAE, Proc., Sensors for nondestructive testing: Measuring the quality of fresh fruits and vegetables, Feb. 18-21, 1997, Orlando, FL. Song, J., B.D. Gardner, J.F. Holland and R.M. Beaudry. 1997. Rapid analysis of volatile flavor compounds in horticultural produce using SPME and GC/time-of-flight mass spectrometry. J. Ag. Food Chem. 45:1801-1807. Song, J., W. Deng, R.M. Beaudry and P.R. Armstrong. 1997. Changes in chlorophyll fluorescence of apple fruit during maturation, ripening and senescence. HortScience 32:891-896. Lakakul, R., R.M. Beaudry and R.J. Hernandez. 1996.< Modeling respiration and package oxygen partial pressure for apple slices in modified-atmosphere packages. (submitted to ASHS). Cameron, A.C., R.M. Beaudry, N.H. Banks and M. Yelanich. 1994. Modified atmosphere packaging of blueberry fruit: Modeling respiration and package oxygen partial pressures at different temperatures. J. Amer. Soc. Hortic. Sci. 119:534-539. Beaudry, R.M. 1993.< Effect of carbon dioxide partial pressure on blueberry fruit respiration and respiratory quotient. Postharvest Biol. Tech. 3:249-258. Beaudry, R.M., P. Schwallier and M. Lennington. 1993. Apple maturity prediction: An extension tool to aid fruit storage decisions. HortTechnology 3:233-239. Beaudry, R.M. and C.D. Gran. 1993. Using a modified-atmosphere packaging approach to answer some postharvest questions: Factors influencing the lower O2 limit. Acta Hort. 362:203-212. Beaudry, R.M., A.C. Cameron, A. Shirazi and D.L. Dostal-Lange. 1992. Modified atmosphere packaging of blueberry fruit: Effect of temperature on package oxygen and carbon dioxide. J. Amer. Soc. Hortic. Sci. 117:436-441. Beaudry, R.M., R. Severson, C.C. Black and S.J. Kays 1989. Banana Ripening: Implications of changes in the concentration of critical glycolytic intermediates and fructose 2,6-bisphosphate. Plant Physiol. 91: 1436-1444. Beaudry, R.M. and S.J. Kays 1988.  Ethylene releasing compounds in agriculture. In "Foliar Application and Leaf Applied Chemicals", P. Neumann, ed., CRC Press, Boca Raton, FL pp 127-156.   Horticulture Department | Michigan State University | Welcome | Outreach Programs| Department Information | Undergraduate Programs | Off-Campus Programs | Graduate Programs | Courses | Faculty | Staff | Student Clubs |  Student Resumes | Gardens | Stations and Farms | Horticulture Links | Master Gardener | MSU Extension

DEPARTMENT OF HORTICULTURE Michigan State University Please send your comments to Ms. Sandy Allen allens@msu.edu This page was last edited in 09/18/07 .