Food microconstituent analysis using High Pressure Liquid Chromatography and Gas Chromatography technology.

Extraction and characterization of health promoting compounds in agricultural products.

Evaluation of activity of health promoting compounds using chemical and biological models.

Current projects

Extraction, purification, antioxidant properties, and application of soy isoflavones from defatted soy flakes.  Louisiana Soybean and Grain Board. 

Investigation of antioxidative activity of phytochemicals in oat, wheat bran, and corn, General Mills Bell Institute of Health and Nutrition.

Refereed scientific articles

Caitlin S. Boon, Zhimin Xu, Xiaohua Yue, D. Julian McClements, Jochen Weiss, and Eric A. Decker. 2008. Factors impacting lycopene oxidation in oil-in-water emulsions. Journal of Agricultural and Food Chemistry 56:1408–1414.

Xiaohua Yue, Zhimin Xu, Witoon Prinyawiwatkul, Jack N. Losso, Joan M. King, and J. Samuel Godber. 2008. Comparison of the soy oils, gum, and defatted soy flour extract in stabilizing menhaden fish oil during heating.  Journal of Food Science. 73(1):C19-C23.

Sandeep D. Bhale, Zhimin Xu, Witoon Prinyawiwatkul, Joan M, King, and J. Samuel Godber. 2007. Oregano and rosemary extracts inhibit oxidation of long chain n-3 fatty acids in menhaden oil. Journal of Food Science. 72(9):C504-C508.

Rebecca Schramm, Alicia Abadie, Na Hua, Zhimin Xu, and Marybeth Lima. 2007. Fractionation of the rice bran layer and quantificatoin of vitamin E, oryzanol, protein, and rice bran saccharide. Journal of Biological Engineering. 1:9.

Hong Kyoon No, Samuel P. Meyers, Witoon Prinyawiwatkul, and Zhimin Xu. 2007. Applications of chitosan for improvement of quality and shelf-life of foods: A Review. Journal of Food Science. 72(5):R87-R100.

David S. Oufnac, Zhimin Xu, Ting Sun, Cristina Sabliov, Witoon Prinyawiwatkul, and J. Samuel Godber. 2007. Extraction of antioxidants from wheat bran using conventional solvent and microwave-assisted methods. Cereal Chemistry. 84(2):125-129.

Ting Sun, Zhimin Xu, Chiung-Ta Wu, Marlene Janes, Witoon Prinyawiwatkul, and Hong Kyoon No. 2007. Antioxidant activities of different colored sweet bell peppers (Capsicum annuum L.). Journal of Food Science. 72(2):S98-S102.

A. Sae-Eaw, P. Chompreeda, W. Prinyawiwatkul, V. Haruthaithanasan, T. Suwansichon, J. E. P. Saidu, and Z. Xu. 2007. Acceptance and purchase intent of the US consumers for the non-wheat rice butter cake. Journal of Food Science. 72(2):S92-S97.

Ting Sun, Zhimin Xu, and Witoon Prinyawiwatkul. 2006. Fatty Acid (FA) Composition of the oil extracted from farmed Atlantic salmon (Salmo salar L.) viscera. Journal of the American Oil Chemist’s Society. 83(7):615-619.

Mandy Mayeaux, Zhimin Xu, Joan M. King, and Witoon Prinyawiwatkul. 2006. Effects of cooking conditions on the lycopene content in tomatoes. Journal of Food Science. 71(8):C461-464.

Ting Sun, Zhimin Xu, and J. Samuel Godber. 2006. Ultrasound assisted extraction in quantifying lutein from chicken liver using high-performance liquid chromatography. Journal of Chromatography B. 830(1):158-160.

Xiaohua Yue, Zhimin Xu, Witoon Prinyawiwatkul, and Joan M. King. 2006. Improving extraction of lutein from egg yolk using ultrasound-assisted solvent method. Journal of Food Science. 71(4):C239-C241.

Ting Sun, Zhimin Xu, J. Samuel Godber, and Witoon Prinyawiwatkul. 2006. Capabilities of oat extracts in inhibiting cholesterol and long chain fatty acid oxidation during heating. Cereal Chemistry. 83(4):451-454.

Kandasamy Nadarajah, Witoon Prinyawiwatkul, Hong Kyoon No, Subramaniam Sathivel, and Zhimin Xu. 2006. Sorption behavior of crawfish chitosan films as affected by chitosan extraction processes and solvent types. Journal of Food Science. 71(2): E033-039.

Zhimin Xu, Ting Zhang, Witoon Prinyawiwatkul, and J. Samuel Godber. 2005. Capabilities of different cooking oils in prevention of cholesterol oxidation during heating. Journal of the American Oil Chemist’s Society. 82(4):243-248.

William H. Duvernay, John M. Assad, Cristina M. Sabliov, MaryBeth Lima, and Zhimin Xu. 2005. Microwave extraction of antioxidant components from rice bran. Journal of Pharmaceutical Engineering. 25(4):126-130.

A. Findley, E. Weidner, K. Carman, Z. Xu, and J. S. Godber. 2005. The role of the posterior vacuole in Spraguea lophii (Microsporidia) in spore hatching. Folia Parasitologica. 52:111-117

Christine J. Bergman and Zhimin Xu. 2003. Genotype and environment effects on the tocol and gamma-oryzanol contents of Southern U.S. rice. Cereal Chemistry. 80(4):446-449.

M. S. Gillespie, J. S. Godber, Z. Xu, H. C. Colona, M. C. May, A. R. Francis, K. L. McCutcheon, and M. Hegsted. 2003. Metabolic aspects of oryzanol in rats. FASEB Journal. 17(4): A334-A337.

Zhimin Xu, Qiju Wu, and J. Samuel Godber. 2002. Stabilities of daidzin, glycitin, genistin, and generation of derivatives during heating. Journal of Agricultural and Food Chemistry. 50(25):7402-7406.

W. Yan, R. C. Reigh, and Z. Xu. 2002. Effects of fungal phytase on utilization of dietary protein and minerals, and dephosphorylation of phytic acid in the alimentary tract of channel catfish Ictalurus punctatus fed an all-plant-protein diet. Journal of the World Aquaculture Society. 33 (1):10-22.

Zhimin Xu and J. Samuel Godber. 2001. Antioxidant activities of major components of gamma-oryzanol from rice bran using a linoleic acid model. Journal of the American Oil Chemist’s Society. 78(6):645-649.

Zhimin Xu, Na Hua, and J. Samuel Godber. 2001. Antioxidant activity of tocopherols, tocotrienols, and gamma-oryzanol components from rice bran against cholesterol oxidation accelerated by 2,2’-azobis(2-methylpropionamidine) dihydrochloride. Journal of Agricultural and Food Chemistry. 49(4):2077-2082.

Zhimin Xu and J. Samuel Godber. 2000. Comparison of supercritical fluid and solvent extraction methods in extracting gamma-oryzanol from rice bran. Journal of the American Oil Chemist’s Society. 77(5):547-551.

Zhimin Xu and J. Samuel Godber. 1999. Purification and identification of components of gamma-oryzanol in rice bran oil. Journal of Agricultural and Food Chemistry. 47(7):2724-2728.

Eric A. Decker and Zhimin Xu. 1998. Minimizing rancidity in muscle foods. Food Technology. 52(10): 54-59.

Book chapter

Zhimin Xu. 2002. Analysis of tocopherols and tocotrienols. In Current Protocols in Food Analytical Chemistry. John Wiley & Sons, Inc., New York. pp. D1.5.1-D1.5.12.

Invited presentations

Zhimin Xu. 2006. Stabilities of health promoting compounds in soybean, rice bran, and tomato during heating. In Processing of Natural Biological Products Sessio, 2006 IBE (Institute of Biological Engineering) Annual Meeting, Tucson, AZ.

Zhimin Xu and J. Samuel Godber. 2001. Purification, identification, and evaluation of antioxidants from rice bran.  In Rice Division Symposium – Mining the Wealth of Rice Bran, 2001 AACC (The American Association of Cereal Chemists) Annual Meeting, Charlotte, NC.