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United States Department of Agriculture

Agricultural Research Service

Related Topics

Phoebe X Qi
Dairy and Functional Foods Research
Chemistry

Phone: (215) 233-6438
Fax: (215) 233-6795
Room 3205

600 E MERMAID LN
ERRC
WYNDMOOR , PA 190388598

Projects
Bioactive Food Ingredients for Safe and Health-Promoting Functional Foods
Appropriated (D)
  Accession Number: 428809
Partnership between USDA-ARS and the Food Science Department of Cornell University
Nonfunded Cooperative Agreement (N)
  Accession Number: 427074

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Investigation of the molecular interactions between beta-lactoglobulin and low methoxyl pectin by multi-detection high performance size exclusion chromatography -
Qi, P.X., Chau, H.K., Fishman, M., Wickham, E.D., Hotchkiss, A.T. 2016. Investigation of the molecular interactions between beta-lactoglobulin and low methoxyl pectin by multi-detection high performance size exclusion chromatography. Food Hydrocolloids Journal. doi: 10.1016/j.foodhyd.2016.09.016.
Studies of molecular interactions between beta-lactoglobulin and sugar beet pectin at neutral pH by high performance size exclusion chromatography -
Qi, P. X., Chau, H. K., Fishman, M. L., & Hotchkiss, A. T., Jr. (2016). Studies of molecular interactions between beta-lactoglobulin and sugar beet pectin at neutral pH by high performance size exclusion chromatography. In Williams, P. A. & Phillips, G. O. (Eds.), Gums and Stabilisers for the Food Industry 18: Hydrocolloid Functionality for Affordable and Sustainable Global Food Solutions, London, UK: The Royal Society of Chemistry. p. 76-89.
Physical and chemical changes in whey protein concentrate stored at elevated temperature and humidity Reprint Icon -
Tunick, M.H., Thomas-Gahring, A.E., Van Hekken, D.L., Iandola, S.K., Singh, M., Qi, P.X., Ukuku, D.O., Mukhopadhyay, S., Onwulata, C.I., Tomasula, P.M. 2016. Physical and chemical changes in whey protein concentrate stored at elevated temperature and humidity. Journal of Dairy Science. 99:2372-2383. DOI: 10.3168/jds.2015-10256.
Quality of whey powders stored under adverse conditions -
Tunick, M.H., Thomas-Gahring, A.E., Van Hekken, D.L., Iandola, S.K., Bazemore, R., Allison, C., Bazemore, K., Singh, M., Qi, P.X., Ukuku, D.O., Mukhopadhyay, S., Onwulata, C.I., Tomasula, P.M. 2015. Quality of whey powders stored under adverse conditions. Meeting Abstract. Abstract of 2015 International Chemical Congress of Pacific Basin Societies. December 15-20, 2015, Honolulu, Hawaii. ENVR102.
Effect of homogenization and pasteurization on the structure and thermal stability of whey protein in milk -
Qi, P.X., Ren, D., Xiao, Y., Tomasula, P.M. 2015. Effect of homogenization and pasteurization on the structure and thermal stability of whey protein in milk. Journal of Dairy Science. 98(5):2884-2897. DOI: 10.3168/jds.2014-8920.
Characterization of the global structure of low methoxyl pectin in solution Reprint Icon -
Fishman, M., Chau, H.K., Qi, P.X., Hotchkiss, A.T., Garcia, R.A., Cooke, P.H. 2015. Characterization of the global structure of low methoxyl pectin in solution. Food Hydrocolloids Journal. 46:153-159. DOI 10.10.1016/j.foodhyd.2014.12.021.
Structural and thermal stability of beta-lactoglobulin as a result of interacting with sugar beet pectin Reprint Icon -
Qi, P.X., Wickham, E.D., Garcia, R.A. 2014. Structural and thermal stability of beta-lactoglobulin as a result of interacting with sugar beet pectin. Journal of Agricultural and Food Chemistry. 62(30):7567-7576. DOI: 10.1021/jf502699g.
Investigating molecular interactions between beta-lactoglobulin and sugar beet pectin by multi-detection HPSEC Reprint Icon -
Qi, P.X., Chau, H.K., Fishman, M., Wickham, E.D., Hotchkiss, A.T. 2014. Investigating molecular interactions between beta-lactoglobulin and sugar beet pectin by multi-detection HPSEC. Carbohydrate Polymers. 107:198-208.
Enrichment and purification of casein glycomacropeptide from whey protein isolate using supercritical carbon dioxide processing and membrane filtration Reprint Icon -
Bonnaillie, L., Qi, P.X., Wickham, E.D., Tomasula, P.M. 2014. Enrichment and purification of casein glycomacropeptide from whey protein isolate using supercritical carbon dioxide processing and membrane filtration. Foods. 3:94-109. DOI: 10.3390/foods3010094.
Heavy metal and phenol adsorption properties of biochars from pyrolyzed switchgrass and woody biomass in correlation with surface structures -
Han, Y., Boateng, A.A., Qi, P.X., Lima, I.M., Jainmin, C. 2013. Heavy metal and phenol adsorption properties of biochars from pyrolyzed switchgrass and woody biomass in correlation with surface properties. Environmental Management. 118:196-204.
Physico-chemical characterization of protein associated polysaccharides extracted from sugar beet pulp Reprint Icon -
Fishman, M., Chau, H.K., Qi, P.X., Hotchkiss, A.T., Yadav, M.P. 2013. Physico-chemical characterization of protein associated polysaccharides extracted from sugar beet pulp. Carbohydrate Polymers. 92:2257-2266.
Reactions between beta-lactoglobulin and genipin: kinetics and characterization of the products Reprint Icon -
Qi, P.X., Nunez, A., Wickham, E.D. 2012. Reactions between beta-lactoglobulin and genipin: kinetics and characterization of the products. Journal of Agricultural and Food Chemistry. 60:4327-4335.
Extrusion texturized dairy proteins: processing and application -
Onwulata, C.I., Tunick, M.H., Qi, P.X. 2011. Extrusion texturized dairy proteins: processing and application. Advances in Food and Nutrition Research. 62:173-200.
Physical properties, molecular structures and protein quality of texturized whey protein isolate: effect of extrusion temperature -
Qi, P.X., Onwulata, C.I. 2011. Physical properties, molecular structures and protein quality of texturized whey protein isolate: effect of extrusion temperature. Journal of Agricultural and Food Chemistry. 59:4668-4675.
Physico-chemical characterization of a cellulosic fraction from sugar beet pulp -
Fishman, M., Chau, H.K., Coffin, D.R., Cooke, P.H., Qi, P.X., Yadav, M.P., Hotchkiss, A.T. 2011. Physico-chemical characterization of a cellulosic fraction from sugar beet pulp. Cellulose. 18(3):787-801.
Physical properties, molecular structures and protein quality of texturized whey protein isolate: effect of extrusion moisture content -
Qi, P.X., Onwulata, C.I. 2011. Physical properties, molecular structures and protein quality of texturized whey protein isolate: effect of extrusion moisture content. Journal of Dairy Science. 94:2231-2244.
Tensile and solubility properties of calcium caseinate films cross-linked with genipin -
Tomasula, P.M., Qi, P.X. 2010. Tensile and solubility properties of calcium caseinate films cross-linked with genipin. The Cornucopia. Paper No. 116.
Texturized dairy proteins -
Onwulata, C.I., Phillips, J.G., Tunick, M.H., Qi, P.X., Cooke, P.H. 2010. Texturized dairy proteins. Journal of Food Science and Technology. 75:2 E100-109.
Health and functional benefits of texturized whey proteins -
Onwulata, C.I., Qi, P.X., Wu, D., Ren, Z., Pae, M., Pang, H., Meydani, N. 2009. Health and functional benefits of texturized whey proteins. UJNR Food & Agricultural Panel Proceedings.
Utilization of supercritical carbon dioxide to produce milk protein fractions -
Tomasula, P.M., Bonnaillie, L., Qi, P.X. 2009. Utilization of supercritical carbon dioxide to produce milk protein fractions [abstract]. ADSA Meeting Abstract.
STRUCTURE AND FUNCTION OF PROTEIN-BASED EDIBLE FILMS AND COATINGS -
Tomasula, P.M., Qi, P., Dangaran, K.L. 2009. Structure and Function of Protein-Based Edible Films and Coatings. In: Embuscado, M.E., Huber, K.C., Editors. Edible Films and Coatings for Food Applications. New York, NY:Springer Science Media. Chapter 2: p.25-56.
Health Benefits of Texturized Whey Proteins -
Onwulata, C.I., Qi, P.X., Wu, D., Ren, Z., Pae, M., Pang, E., Meydani, S. 2009. Health Benefits of Texturized Whey Proteins. Meeting Abstract.
EFFECT OF PRESSURIZED CARBON DIOXIDE (CO2) ON THE STRUCTURE OF CASEIN MICELLES -
Exploring a Role in Tanning for the Gap Region of the Collagen Fibril: Catechin-Collagen Interactions -
Brown, E.M., Qi, P.X. 2008. Exploring a Role in Tanning for the Gap Region of the Collagen Fibril: Catechin-Collagen Interactions. Journal of American Leather Chemists Association. 103(9):290-297.
FRACTIONATION OF DAIRY PROTEINS USING HIGH-PRESSURE AND SUPERCRITICAL CARBON DIOXIDE -
Tomasula, P.M., Bonnaillie, L.M., Qi, P.X., Van Hekken, D.L. 2007. Fractionation of Dairy Proteins Using High-Pressure and Supercritical Carbon Dioxide. In Proceedings at the International Conference on Traditional Dairy Foods, November 14-17, 2007, Karnal, India. p.3.
CASEIN MICELLE STRUCTURE: THE PAST AND THE PRESENT -
Qi, P.X. 2007. Casein micelle structure: the past and the present. Le Lait. 87(4-5):363-383.
RECENT DEVELOPMENTS IN PROTEOMICS: IMPLICATIONS FOR DAIRY PROTEIN RESEARCH -
Study of Intermediate Products from the Cross-linking Reactions of Genipin with Beta-Lactoglobulin and Related Peptides by MALDI-TOF/TOF Mass Spectrometry -
Nunez, A., Qi, P.X. 2007. Study of Intermediate Products from the Cross-linking Reactions of Genipin with Beta-Lactoglobulin and Related Peptides by MALDI-TOF/TOF Mass Spectrometry. Proceedings of the 55th ASMS Conference on Mass Spectrometry.
CALCIUM-INDUCED SUPRAMOLECULAR STRUCTURES IN THE CALCIUM CASEINATE SYSTEM -
Qi, P.X., Tomasula, P.M. 2007. Calcium-induced supramolecular structures in the calcium caseinate system. (abstract). American Chemical Society Book of Abstracts. AGFD14.
Exploring a role in tanning for the gap region of the collagen fibril -
Brown, E.M., Qi, P.X. 2007. Exploring a role in tanning for the gap region of the collagen fibril. In: Proceedings of International Union of Leather Technologists and Chemists Societies and American Leather Chemists Association Conference, June 20-24, 2007, Washington, D.C. 2007 CDROM.
CHARACTERIZATION OF CASEINS CROSSLINKED BY A NATURALLY OCCURRING CROSSLINKING AGENT-GENIPIN -
Qi, P.X., Tomasula, P.M. 2007. Characterization of caseins crosslinked by a naturally occurring crosslinking agent-genipin. (abstract). 98th AOCS Ann Mtg & Expo. p. 139.
Whey protein fractionation using supercritical carbon dioxide -
Tomasula, P.M., Bonnaillie, L., Van Hekken, D.L., Qi, P.X., Dangaran, K.L. 2007. Whey protein fractionation using supercritical carbon dioxide [abstract]. 98th AOCS Annual Meet & Expo. p. 143.
Exploring a role in tanning for the gap region of the collagen fibril -
Brown, E.M., Qi, P.X. 2007. Exploring a role in tanning for the gap region of the collagen fibril [abstract]. American Leather Chemists Association Meeting. p. 2.
A STRUCTURAL STUDY OF BOVINE B-CASEIN BY CD, FLUORESCENCE, FTIR AND MOLECULAR MODELING -
PROTEIN-PROTEIN INTERACTIONS IN CASEIN PRECIPITATED BY PRESSURIZED CARBON DIOXIDE (C02 CASEIN) -
Qi, P.X., Cooke, P.H., Tomasula, P.M. 2006. Protein-protein interactions in casein precipitated by pressurized carbon dioxide (c02 casein). Nanoscale International Conference. #4b p.15.
STRUCTURE, PROPERTIES AND APPLICATIONS OF EDIBLE FILMS AND COATINGS FROM DAIRY PROTEINS -
Dangaran, K.L., Qi, P.X., Tomasula, P.M. 2006. Structure, properties and applications of edible films and coatings from dairy proteins. 2006 Ann AOCS Mtg & Expo. St. Louis, MO. p. 108.
CHARACTERIZATION OF CASEIN FILMS MADE BY PRESSURIZED CARBON DIOXIDE: SALT EFFECT ON WATER SOLUBILITY -
Qi, P.X., Cooke, P.H., Dangaran, K.L., Tomasula, P.M. 2006. Characterization of casein films made by pressurized carbon dioxide: salt effect on water solubility. 97th AOCS Ann Meeting & Expo Book of Abstracts. p. 106
CASEIN MICELLE STRUCTURE: WHAT CAN BE LEARNED FROM MILK SYNTHESIS AND STRUCTURAL BIOLOGY -
Farrell, H.M., Malin, E.L., Brown, E.M., Qi, P.X. 2006. Casein micelle structure: What can be learned from milk synthesis and structural biology. Journal of Colloid and Interface Science. 11:135-147.
IMPORTANCE OF C-TERMINAL REGION OF BOVINE B-CASEIN -
Qi, P.X.. 2006. Importance of c-terminal region of bovine b-casein. American Chemical Society Symposium Series 935. p.71-92.
NEW VIEW OF PROTEIN STRUCTURE:IMPLICATIONS FOR POTENTIAL NEW PROTEIN STRUCTURE-FUNCTIONAL RELATIONSHIPS: PROTEIN STRUCTURE AND FUNCTIONALITY -
Qi, P.X., Farrell, H.M., Uversky, V.N. 2006. New view of protein structure:implications for potential new structure-function relationships:Protein Structure and Functionality American Chemical Society Symposium Book Series.p.1-18.
IMPLICATION OF C-TERMINAL DELETION ON THE STRUCTURE AND STABILITY OF BOVINE B-CASEIN -
Qi, P.X., Wickham, E.D., Piotrowski, E.G., Fagerquist, C.K., Farrell Jr, H.M. 2005. Implication of c-terminal deletion on the structure and stability of bovine b-casein. Protein Journal. 24(7-8):431-444.
CHARACTERIZATION OF CASEIN-BASED FILMS BY TRANSMISSION ELECTRON MICROSCOPY -
Qi, P.X., Cooke, P.H., Tomasula, P.M., Wickham, E.D. 2005. Characterization of casein-based films by transmission electron microscopy. (Abstract). 230th ACS National Meeting. Paper No. AGFD 104.
CASEIN MICELLE STRUCTURE: WHAT CAN BE LEARNED FROM MILK SYNTHESIS AND STRUCTURAL BIOLOGY? -
Farrell Jr, H.M., Malin, E.L., Qi, P.X., Brown, E.M. 2005. Casein micelle structure: what can be learned from milk synthesis and structural biology?. Current Opinion in Colloid and Interface Science. 11:135-147.
THERMAL AND ALKALINE DENATURATION OF BOVINE B-CASEIN -
Qi, P.X., Wickham, E.D., Farrell, H.M.,Jr. 2004. Thermal and alkaline denaturation of bovine-b casein. (abstract). The Protein Journal. 1572-3887:/04/0800-0389/0. P. 389-402.
THE IMPORTANCE OF THE C-TERMINAL REGION OF BOVINE B-CASEIN IN ITS SELF-ASSOCIATION BEHAVIOR -
Qi, P.X., Wickham, E. 2004. (The importance of the C-terminal region of bovine B-casein in its self-association behavior. (abstract). 228th ACS Natl. Mtg. Paper No. AGFD 56.
STRUCTURAL AND FUNCTIONAL IMPLICATIONS OF C-TERMINAL REGION OF BOVINE B-CASEIN -
Qi, P.X., Farrell, H.M. 2004. Structural and functional implications of C-Terminal Region of Bovine-Beta Casein. (abstract). 48th Biophysical Society Ann. Mtg. 86:491a.
FOOD PROTEINS:INTERACTIONS AND FUNCTIONALITY -
Onwulata, C., Qi, P.X. 2004. Food protein:interactions and functionality. In:Meyers, R., A.Ed. The Encyclopedia of Molecular Biology: Fundamentals & Applications. Wiley-VCH, Weinheim, Germany. V.4, p.503-519.
THE IMPORTANCE OF THE C-TERMINAL REGION OF BOVINE B-CASEIN -
Qi, P.X., Wickham, E.D., Farrell Jr, H.M. 2003. The importance of the c-terminal region of bovine b-casein [abstract]. 17th Symposium of the Protein Society. 12:193.
THE ROLE OF C-TERMINAL REGION OF BOVINE B-CASEIN -
Qi, P.X., Farrell Jr, H.M., Wickham, E.D. 2003. The role of c-terminal region of bovine b-casein. (abstract). The 94th American Oil Chemists Soc. Annual Meeting & Expo. p.54.
PROTEIN-PROTEIN INTERACTIONS IN CASEIN MICELLE STRUCTURE -
Farrell, H.M., Qi, P.X. 2003. Protein-Protein interactions in casein micelle structure. l7th Annual J.R. Brunner Protein Symposium. p.12.
ARS News Articles
Last Modified: 5/2/2016
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