Alyson E. Mitchell

 Alyson E. Mitchell

Position

  • Professor and Food Chemist
  • Food Science and Technology

Degree

Ph. D. University of California at Davis, 1996

Research

Professor Mitchell’s research program investigates the basic chemical reactions and changes in composition that occur in fruits and vegetables as a result of breeding, pre- and post-harvest processes and developing mass spectral approaches for identifying and quantifying target and nontarget secondary plant metabolites for authentication, safety and biological relevance. Her research team helps identify strategies and processing innovations for retaining and optimizing levels of beneficial compounds in finished food products, and for decreasing the formation of toxic compounds (e.g. acrylamide, advanced lipid oxidation products, etc.,) in finished foods. Additional investigations include characterizing the food-matrix interaction and how this influences and bioavailability and metabolism of bioactives.

Selected Publications

  • Xiao, L., J. Lee, G. Zhang, S. E. Ebeler, N. Wickramasinghe, J. Seiber, and A. E. Mitchell. 2014. HS-SPME GC/MS characterization of volatiles in raw and dry-roasted almonds (Prunus dulcis). Food Chem. 151: 31-39.
  • Suthawan Charoenprasert and Alyson Mitchell. June 2012. Factors Influencing Phenolic Compounds in Table Olives (Olea europaea). Journal of Agricultural and Food Chemistry. DOI: 10.1021/jf3017699
  • Jihyun Lee and Alyson E. Mitchell. March 2012. Pharmacokinetics of Quercetin Absorption from Apples and Onions in Healthy Humans. Journal of Agricultural and Food Chemistry. DOI: 10.1021/jf3001857
  • Eunmi Koh, Suthawan Charoenprasert, and Alyson E. Mitchell. March 2012. Effect of Organic and Conventional Cropping Systems on Ascorbic Acid, Vitamin C, Flavonoids, Nitrate, and Oxalate in 27 Varieties of Spinach (Spinacia oleracea L.). Journal of Agricultural and Food Chemistry. DOI: 10.1021/jf300051f.
  • Koh, E.; Mitchell, A. E. Oct 2011. Characterization of urinary isoflavone metabolites excreted after the consumption soy flour or soybean paste using LC-ESI(+)MS/MS. Journal of Food Biochemistry DOI:10.1111/j.1745-4514.2010.00469.x 35 (2011); 1457-1485.
  • Zhang, G., Huang, G., Xiao, L., Mitchell, A. E. Oct 2011. Determination of Advanced Glycation Endproducts by LC-MS/MS in Raw and Roasted Almonds (Prunus dulcis). Journal of Agricultural and Food Chemistry f-2011-02515k.
  • Mitchell, A. E., Koh, E., Charoenprasert , W. Aug 2011. Effects of industrial tomato paste processing on ascorbic acid, flavonoid and carotenoid disposition in paste and processing co-product and their stability over one-year storage. Journal of the Science of Food and Agriculture DOI: 10.1002/jsfa.4580.
  • Zhang, G., Huang, G., Xiao, L., Mitchell, A. E. Jul 2011. Acrylamide Formation in Almonds (Prunus dulcis): Influences of Roasting Time and Temperature, Precursors, Varietal Selection, and Storage. Journal of Agricultural and Food Chemistry 59 (15): 8225–8232. DOI: 10.1021/jf201595q.
  • Lee, J-H., Mitchell, A. E. Jan 2011. Quercetin and Isorhamnetin Glycosides in Onion (Allium cepa L.): Varietal Comparison, Physical Distribution, Coproduct Evaluation, and Long-Term Storage Stability. Journal of Agricultural and Food Chemistry 59 (3): 857–863. DOI: 10.1021/jf1033587.

Awards and Honors

  • John Kinsella Endowed Chair in Food and Nutrition, University of California, 2010-2015
  • Visiting Scientist for the TransTasman Project. Victorian Department of Primary Industries, Victoria, Australia & Crop and Food Research, New Zealand. 2003 - 2004
  • First Place Presentations in In Vitro Studies; International Society for the Study of Xenobiotics. 1995
  • Departmental Citation for Outstanding Undergraduate Accomplishment in Environmental Toxicology. University of California Davis 1991

Extension of Knowledge Activities

  • FST103 - Physical and Chemical Methods for Food Analysis
  • FST128 - Food Toxicology
  • FST10 – Food, Folklore and Health
  • Freshman Seminar - Food: Evolutionary Perspectives, Food Politics, Marketing and Health Consequences

For more information on Dr. Mitchell, visit her home page.