Dr. Navam S. Hettiarachchy
University Professor

Phone: (479) 575-4779
Email: nhettiar@uark.edu
Office: N-218

• AFLS 401(2): Honors Proposal Development
• FDSC 4304: Food Chemistry
• FDSC 6323: Nutraceuticals and Functional Foods
• FDSC 6333: Food Protein Chemistry and Functionality

• Proteins
Proteomics, chemistry engineering, isolation, characterization, structure-function relationship, functionality, physicochemical properties during processing and storage, nutritional aspects, allergens, and extrusion.

• Value Added Nutraceutical/Phytochemicals/Functional Food/ngredients from Specialty Crops and Industry co/by-products:
Bio-peptides molecular aspects, rice and soybean bio-components, isoflavones, polyphenols, herbs and specialty crops including vegetable soybean and bitter melon (gourd) as relates to cancer, heart disease, osteoporosis, diabetes, hypotension and anti-aging.

• Enzymatic Protein Hydrolysates as Health-promoting Agents
Hydrolysis of proteins with food grade proteolytic enzymes, isolation, purification, characterization, and evaluation for anti-cancer, antioxidant, antimicrobial, antihypertensive, antidiabetic, antimutagenic, antihypercholesterolemic, and antialzheimer’s properties.

• Lipid Oxidation and Natural Antioxidants
Extraction from natural sources, isolation, identification, product application to prevent rancidity, and nurtraceutical and functional ingredient aspects.

• Value Added Food Ingredients from Protein and Industrial Coproducts
Edible and biodegradable film polymers, carriers of antioxidants, antimicrobial, color, flavor.

• Food Safety
Intervention strategies to inhibit and prevent food-borne pathogens in meat, poultry and vegetable products. Antimicrobials, incorpoarted edible films and irradiation of poultry products.

Hettiarachchy N.S, Eswaranandam S. 2007. Organic acids incorporated edible antimicrobial films. US  Patent. Patent No.: US 7,160,580 B2. Date of patent: Jan. 9, 2007

Hettiarachchy, N.S. 2006. Value-added novel uses of rice bran extract.  Patent filed by the university, March  2006.

Hettiarachchy, N.S, Paraman, I, Shaefer, C. and Beck. 2005.  Protective hydrocolloid for active ingredients. DSM in (formerly Hofmann La Roche) Switzerland, patent filed by the company, January 2006.

Ilankovan P., Hettiarachchy, N.S., Schaefer C., and Beck M. I. 2006. Physicochemical properties of rice endosperm proteins extracted by chemical and enzymatic methods, Cereal Chem. 83(6):663-667

Theivendran S, Hettiarachchy N.S, and Johnson MG. 2006. Inhibition of Listeria monocytogenes by nisin combined with grape seed extract or green tea extract in soy protein film coated on turkey frankfurters. J Food Sci 71(2):M39-44.

Bo Zhang, B., Hettiarachchy, N.S., Chen, P., Horax, R., Cornelious, B., and Zhu, D. 2006 Influence of the Application of Three Different Elicitors on Soybean Plants on the Concentrations of Several Isoflavones in Soybean Seeds. J. Agric. Food Chem. 54(15):5548 - 5554

Rababah, T., Hettiarachchy, N. S., Horax, R. Cho, M. J. Davis, B. and Dickson. J. 2006. Thiobarbituric acid reactive substances and volatile compounds in chicken breast meat infused with plant extracts and subjected to electron beam irradiation. Poult Sci 85:1107-1113

Horax, R., Hettiarachchy, N.S., and Islam, S. 2005. Total phenolic contents and phenolic acid constituents in 4 varieties of bitter melons (Momordica charantia) and antioxidant activities of their extracts. J Food Sci. 70:C275-C280.

Eswaranandam S, Hettiarachchy N.S, and Meullenet JF. 2006. Effect of malic and lactic acid incorporated soy protein coatings on the sensory attributes of whole apple and fresh-cut cantaloupe. J Food Sci 71(3):S307-313.