University of Ulster

Magee, Pamela, Owusu, Richard, McCann, Mark, Gill, Chris I. R. and Rowland, Ian R (2012) Chickpea (Cicer arietinum) and Other Plant-Derived Protease Inhibitor Concentrates Inhibit Breast and Prostate Cancer Cell Proliferation In Vitro.. Nutrition and Cancer, 1-8.

Das, Anupam J., Chalil, Sreeda , Nigam, P, Magee, Pamela, Janneh, Omar and Owusu-Apenten, Richard (2011) Glutathione transferase-P1-1 binding with naturally occurring ligands: assessment by docking simulations. Journal of Biophysical Chemistry, 02 (04). pp. 401-407.

Owusu-Apenten, Richard (2010) Bioactive Peptides: Applications for Improving Nutrition and Health. CRC Press Taylor Francis Group. 400 pp ISBN 9781439813621

Owusu, RK (2008) Melamime-Tracing the contaminant. The World of Food Ingredients , 2008 (7). pp. 22-25.

Krasaechol, N, Sanguandeekul, R, Duangmal, K and Owusu-Apenten, Richard (2008) Structure and functional properties bream sarcoplasmic of modified threadfin protein. FOOD CHEMISTRY , 107 (1). pp. 1-10.

BANERJEE, SREEPARNA, KHOKHAR, SANTOSH and Apenten, Richard KO (2007) CHARACTERIZATION OF LIPOXYGENASE FROM MACKEREL (SCOMBER SCOMBRUS) MUSCLE. Journal of Food Biochemistry, 26 (1). pp. 1.

Owusu-Apenten, Richard (2007) The effect of concentration and exposure time on soybean protease inhibitor anticancer activity. In: 2007 IFT Annual Meeting, July 28 - August 1, Chicago, IL. IFT.

Ni, Y, Owusu-Apenten, Richard, Zhu, L and Seetharaman, Koushik (2006) Effect of Alkali Dipping on Dough and Final Product Quality. . Journal of Food Science, 71 (3). pp. C209-C215.

Owusu-Apenten, Richard and Khokhar, Santosh (2005) Protein Determination in food and agriculture systems. In: Handbook of Food Science, Technology, and Engineering. (Eds: Hui, Y. H. and Sherkat, Frank ), CRCPress, pp. 30-45. ISBN 9780849398476

Adulyatham, Pitiya and Owusu-Apenten, Richard (2005) Stabilization and partial purification of a protease from ginger rhizome (Zingiber offinale Roscoe). Journal of Food Science, 70 (3). pp. C231-C234.

Owusu-Apenten, Richard (2005) Colorimetric analysis of protein sulfhydyl groups in milk: Applications and processing effects. CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION , 45 (1). pp. 1-23.

Owusu-Apenten, Richard (2005) Introduction to Food chemistry. . CRC Press, Boca Raton, Florida (USA). 272 pp ISBN 9780849317248

Krasaechol, N, Sanguandeekul, R, Duangmal, K and Owusu-Apenten, R (2005) Characteristics and functional properties of sarcoplasmic proteins from threadfin bream (Nemipterus hexodon). In: 2005 IFT Annual Meeting, July 16 - 20; New Orleans, LA, New Oleans. Institute of Food Technologists.

Lokre, M, Owusu-Apenten, R, Roberts , R and Ziegler , G (2005) Effect of pre-drying thermal treatment on commercial dried milk powder protein technofunctionality . In: 2005 IFT Annual Meeting, July 16 - 20; New Orleans, LA, New Oleans. Institute of Food Technologists.

Chee, C and Owusu-Apenten, Richard (2004) Sulfhydryl group activation for commercial beta-lactoglobulin measured using kappa-casein 2-thio, 5 ' nitrobenzoic acid. International Dairy Journal, 14 (3). pp. 195-200.

Owusu-Apenten, Richard (2004) Testing protein functionality. In: Proteins in food processing . (Eds: Yada, Ricky), Woodhead Publishers, pp. 217-244. ISBN 1-85573-723-X

Nordman, TS, Peterson, DG, Owusu-Apenten, Richard and Seetharaman, K (2004) 67C-29 Release of acrylamide from a food matrix during in-vitro digestion. In: 2004 IFT Annual Meeting, July 12 - 16, Las Vegas, NV, Las Vegas, USA. Institute of Food Technologists.

Owusu-Apenten, Richard, Chee, C and Hwee, OP (2003) Evaluation of a sulphydryl-disulphide exchange index (SEI) for whey proteins - beta-lactoglobulin and bovine serum albumin. Food Chemistry, 83 (4). pp. 541-545.

Khokhar, S and Owusu-Apenten, Richard (2003) Iron binding characteristics of phenolic compounds: some tentative structure-activity relations. FOOD CHEMISTRY , 81 (1). pp. 133-140.

Mdluli, Kwaneli and Owusu-Apenten, Richard (2003) Enzymatic browning in marula fruit 1: Effect of endogenous antioxidants on marula fruit polyphenol oxidase. Journal of Food Biochemistry, 27 (1). pp. 67-82.

Khokhar, Santosh and Apenten, Richard KO (2003) Anti-nutritional factors in Food Legumes and effects of processing. In: The role of food, agriculture, forestry and fisheries in human nutrition. (Eds: Squires, Victor R), Encyclopedia of Life Support Systems (EOLSS), pp. 82-116. ISBN 1848266456

MDLULI, KWANELE M. and Owusu, RK (2003) Enzymatic browning in marula fruit 1: Effect of endogenous antioxidants on marula fruit polyphenol oxidase. Journal of Food Biochemistry, 27 (1). pp. 67.

Chee, CP and Owusu-Apenten, Richard (2003) The effect of solution conditions on bovine serum albumin sulfhydryl reactivity . In: 2003 IFT Annual Meeting, July 12 - 16, Chicago, IL, Chicago, IL. IFT.

Owusu-Apenten, Richard (2003) Site directed modification of beta-lactoblobulin and its effect on in-vitro digestibility . In: 2003 IFT Annual Meeting, July 12 - 16, Chicago, IL, Chicago, IL. IFT.

Owusu-Apenten, Richard (2002) Food Protein Analysis; Quantitative Effects On Processing. CRC Press, Boca Raton, Florida USA. 488 pp ISBN 978-0-8247-0684-5

Apenten, Richard KO, Khokhar, S. and Galani, D. (2002) Stability parameters for β-lactoglobulin thermal dissociation and unfolding in phosphate buffer at pH 7.0. Food Hydrocolloids, 16 (2). pp. 95.

Amiza, M. A and Apenten, Richard KO (2002) A Single Step Purification of Gastricsin-Like Proteinase from Atlantic Cod (Gadus morhua). Journal of Biological Sciences, 2 (9). pp. 591.

Owusu-Apenten, Richard (2002) REVISED CONFORMATIONAL STABILITY PARAMETERS FOR BETA-LACTOGLOBULIN ISOTHERMAL DENATURATION BY UREA. Journal of Food Biochemistry, 26 (3). pp. 181.

Amiza, Mat Amin and Owusu-Apenten, Richard (2002) Thermal Inactivation Parameters for cod pepsin, cod pepsinogen and porcine pepsin. In: 2002 WSEAS International Conferences, Mathematics and Computers in Biology and Chemistry (MCBC 2002) Puerto De La Cruz, Tenerife, Spain, Dec. 19-21, 2002. (Eds: Mastorakis , N, Meng , Joo Er and D'Attelis , Carlos), wseas, pp. 19-22. ISBN 9608052890

Orruno, Estibalitz, Apenten, Richard KO and Zabetakis, Ioannis (2001) The role of beta-glucosidase in the biosynthesis of 2, 5-dimethyl-4-hydroxy-3(2H)-furanone in strawberry (Fragaria ananassa cv. Elsanta). Flavour and Fragrance Journal, 16 (2). pp. 81.

Galani, D and Apenten, Richard KO (2000) Revised equilibrium thermodynamic parameters for thermal denaturation of -lactoglobulin at pH 2.6 . Thermochimica Acta, 1 (363). pp. 137-142.

Apenten, Richard KO and Galani, Despina (2000) Protein stability function relations: native ?-lactoglobulin sulphhydryl-disulphide exchange with PDS. Journal of the Science of Food and Agriculture, 80 (4). pp. 447.

Apenten, Richard KO, Buttner, B, Mignot, B, Pascal, D and Povey, M (2000) Determination of the adiabatic compressibility of bovine serum albumen in concentrated solution by a new ultrasonic method. Food Hydrocolloids, 14 (1). pp. 83.

Apenten, Richard KO and Galani, Despina (2000) Thermodynamic parameters for beta-lactoglobulin dissociation over a broad temperature range at pH 2.6 and 7.0. Thermochimica Acta, 359 (2). pp. 181.

Liaquat, M. and Apenten, Richard KO (2000) Synthesis of Low Molecular Weight Flavor Esters Using Plant Seedling Lipases in Organic Media. Journal of Food Science, 65 (2). pp. 295.

Galani, D and Apenten, Richard KO (1999) Heat-induced denaturation and aggregation of beta-Lactoglobulin: kinetics of formation of hydrophobic and disulphide-linked aggregates. INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY , 34 (5-6). pp. 467-476.

Duangmal, K and Owusu-Apenten, Richard (1999) A comparative study of polyphenoloxidases from taro (Colocasia esculenta) and potato (Solanum tuberosum var. Romano. Food Chemistry, 64 (3). pp. 351-359.

Galani, D and Apenten, Richard KO (1999) Beta-lactoglobulin denaturation by dissociation-coupled unfolding . Food Research International , 32 (2). pp. 93-100.

Busto, M, Apenten, Richard KO, Robinson, D.S, Wu, , Zencai, Casey, J and Hughes, , R.K. (1999) Kinetics of thermal inactivation of pea seed lipoxygenases and the effect of additives on their thermostability. Food Chemistry, 65 (3). pp. 323.

Apenten, Richard KO and MAHADEVAN, KRITIKA (1999) THE HEAT RESISTANCE AND CONFORMATIONAL PLASTICITY OF KUNITZ SOYBEAN TRYPSIN INHIBITOR. Journal of Food Biochemistry, 23 (2). pp. 209.

Apenten, Richard KO and Galani, Despina (1999) Is the rate of sulfur-disulfide exchange between the native beta-Lactoglobulin and PDS related to protein conformational stability?. International Journal of Food Science and Technology, 34 (5-6). pp. 483.

Forsyth, J, Apenten, Richard KO and Robinson , D.S. (1999) The thermostability of purified isoperoxidases from Brassica oleracea VAR. gemmifera. Food Chemistry, 65 (1). pp. 99.

Apenten, Richard KO (1999) Low temperature organic phase biocatalysis using cold-adapted enzymes . In: Biotechnological Applications of Cold adapted enzymes. (Eds: Margesin , Rosa and Schinner, Frank), Springer, pp. 35-48. ISBN 978-3-540-64972-4

Hughes, RK, Wu, Z, Hornostaj, AR, Robinson, DS, Hardy, D, West, SI, Owusu-Apenten, Richard, Fairhurst, SA, Chan, M, Lawson, DM and Casey, R (1999) Recombinant pea and potato lipoxygenases: versatile biocatalysts for industry.. Agro Food Industry hi-tech., 10 (3). pp. 3-6.

Nyman, RE, Nelson, G and Owusu-Apenten, R (1999) 65A-12: Reductive alkylation of blood proteins. In: 1999 IFT Annual Meeting, July 24 - 28, Chicago, IL. IFT.

Apenten, Richard KO (1998) The effect of protein unfolding stability on their rates of irreversible denaturation. Food Hydrocolloids, 12 (1). pp. 1.

Apenten, Richard KO (1998) Protein stability function relations: β-lactoglobulin-A sulphydryl group reactivity and its relationship to protein unfolding stability. International Journal of Biological Macromolecules, 23 (1). pp. 19.

Nyman, Rachel and Apenten, Richard KO (1997) The Effect of Heat Treatment on Anilinonaphthalene-8-Sulphonate Binding to Rapeseed Albumin (Napin). Journal of the Science of Food and Agriculture, 74 (4). pp. 485.

Galani, Despina and Apenten, Richard KO (1997) The Comparative Heat Stability of Bovine β-Lactoglobulin in Buffer and Complex Media. Journal of the Science of Food and Agriculture, 74 (1). pp. 89.

AMIZA, MAT AMIN, GALANI, DEPSINA and Owusu-Apenten, Richard (1997) COD (GADUS MORHUA) TRYPSIN HEAT INACTIVATION: A REACTION KINETICS STUDY. Journal of Food Biochemistry, 21 (3). pp. 273.

Folawiyo , Y and Apenten, Richard KO (1997) The effect of heat- and acid-treatment on the structure of rapeseed albumin (napin). Food Chemistry, 58 (3). pp. 237.

Tan, Sze, Owusu-Apenten, Richard and Knapp, JS (1996) Low temperature organic phase biocatalysis using cold-adapted lipase from psychrotrophic Pseudomonas P38 . Food Chemistry, 57 (3). pp. 415-418.

Galani, D and Apenten, Richard KO (1996) The effect of heat on whey proteins. . Food Science and Technology Today, 10 (3). pp. 163-168.

Apenten, Richard KO and Zhu, Qing-Hong (1996) Interfacial parameters for selected Spans and Tweens at the hydrocarbon—water interface. Food Hydrocolloids, 10 (1). pp. 27.

Apenten, Richard KO and Zhu, Qing-Hong (1996) Interfacial parameters for spans and tweens in relation to water-in-oil-in-water multiple emulsion stability. Food Hydrocolloids, 10 (2). pp. 245.

Folawiyo, Yetunde L and Apenten, Richard KO (1996) Effect of pH and Ionic Strength on the Heat Stability of Rapeseed 12S Globulin (Cruciferin) by the ANS Fluorescence Method. Journal of the Science of Food and Agriculture, 70 (2). pp. 241.

Makhzoum , A and Apenten, Richard KO (1996) Purification and properties of lipase from Pseudomonas fluorescens strain 2D. International Dairy Journal, 6 (5). pp. 459.

Amiza, Mat Amin and Apenten, Richard KO (1996) Urea and Heat Unfolding of Cold-Adapted Atlantic Cod(Gadusmorhua) Trypsin and Bovine Trypsin. Journal of the Science of Food and Agriculture, 70 (1). pp. 1.

Tan, S and Apenten, Richard KO (1995) Low temperature organic phase biocatalysis using psychrotroph derived lipase. In: Bioflavour 95: Analysis - Precursor Studies - Biotechnology . (Eds: Etievant , P and Schreier, P), Institute National de la Recherche Agronomique , pp. 361-364. ISBN 02931915

Apenten, Richard KO (1995) Thermodynamic parameters for 3-state thermal denaturation of human and bovine α-lactalbumin. Thermochimica Acta, 262. pp. 1.

Apenten, Richard KO (1995) A three-state heat-denaturation of bovine α-lactalbumin. Food Chemistry, 52 (2). pp. 131.

Apenten, Richard KO and Folawiyo, Yetunde L. (1995) The effect of pH on rapeseed globulin (Cruciferin) binding to anilinonapthalene-8-sulfonate. Journal of Food Biochemistry, 19 (6). pp. 455.

JIDEANI, I, Owusu, RK and MULLER, H (1994) Proteins of acha (Digitaria exilis Stapf): Solubility fractionation, gel filtration, and electrophoresis of protein fractions. Food Chemistry, 51 (1). pp. 51.

Apenten, Richard KO and Berthanon, N (1994) Determination of enzyme global thermostability from equilibrium and kinetic analysis of heat inactivation. Food Chemistry, 51 (1). pp. 15.

Amiza, Mat Amin and Apenten, Richard KO (1994) Thermal inactivation parameters for alkaline proteinases from north sea cod (Gadus morhua) and bovine α-chymotrypsin. Journal of the Science of Food and Agriculture, 66 (3). pp. 389.

Owusu, Richard and Doble, C (1994) Heat-stability of a proteinase from psychrotrophic Pseudomonas fluorescens P38, chymotrypsin and thermolysin. Food Chemistry, 51 (2). pp. 137.

Dickinson, E, Evison, J and Owusu, RK (1994) Protein stabilized water-in-oil-in-water emulsions. In: Gums and Stabilizers for the Food Industry . (Eds: Phillips, GO, Williams , PA and Wedlock, DJ), Oxford University Press, pp. 95-101. ISBN 0199634653

Jideani, IA., Owusu, RK and Muller, HG (1994) Sodium dodecylsulphate polyacrylamide gel electrophoresis of reduced proteins from durum and Digitaria exilis (Acha). In: Gluten Proteins 1993. Association of Cereal Research, Dertmond, Germany, Dertmond, Germany, pp. 492-497. ISBN 9971505142

Jideani, Afam I, Apenten, Richard KO and Muller, H G (1994) The effect of cooking on proteins from acha (Digitaria exilis) and durum wheat. Journal of the Science of Food and Agriculture, 65 (4). pp. 465.

Owusu, RK and Berthalon, N (1993) A test for the two-stage thermoinactivation model for chymotrypsin. Food Chemistry, 48 (3). pp. 231.

Dickinson, E, Owusu, RK, Tan, Sze and Williams, A (1993) Oil-soluble Surfactants Have Little Effect on Competitive Adsorption of α-Lactalbumin and β-Lactoglobulin in Emulsions. Journal of Food Science, 58 (2). pp. 295-298.

Dickinson, Eric, Owusu, Richard K and Williams, Andrea (1993) Orthokinetic destabilization of a protein-stabilized emulsion by a water-soluble surfactant . Journal of the Chemical Society, Faraday Transactions, 89. pp. 865-866.

Makhzoum, A, Owusu, Richard and Knapp, JS (1993) The conformational stability of a lipase from a psychrotrophic Pseudomonas fluorescens. Food Chemistry, 46 (4). pp. 355-359.

Owusu, Richard, Zhu, Qinhong and Dickinson, Eric (1992) Controlled release of L-tryptophan and Vitamin B2 from model water/oil/water multiple emulsions. Food Hydrocolloids, 6 (5). pp. 443.

Owusu, Richard K, Makhzoum, A and Knapp, JS (1992) Heat inactivation of lipase from psychrotrophic Pseudomonas fluorescens P38: Activation parameters and enzyme stability at low or ultra-high temperatures. Food Chemistry, 44 (4). pp. 261.

Owusu, Richard (1992) Thermodynamic analysis of the effect of calcium on bovine alpha-lactalbumin conformational stability. Food Chemistry, 44 (3). pp. 189-194.

Owusu, RK (1992) The effect of calcium on bovine α-lactalbumin conformational transitions by ultraviolet difference and fluorescence spectrophotometry. Food Chemistry, 43 (1). pp. 41-45.

Owusu, RK and COWAN, D (1991) Isolation and partial characterization of a novel thermostable carboxylesterase from a thermophilic Bacillus. Enzyme and Microbial Technology, 13 (2). pp. 158-163.

Owusu, RK, MAKHZOUM, A and KNAPP, J (1991) The thermodynamic stability of lipases and proteases from psychrotrophic bacteria. Food Chemistry, 39 (2). pp. 187.

Dickinson, Eric, Evison, Jane and Owusu, Richard (1991) Preparation of fine protein-stabilized water-in-oil-in-water emulsions. Food Hydrocolloids, 5 (5). pp. 481.

Owusu, RK and COWAN, D (1990) Biocatalysis in organic solvent systems using thermostable enzymes: esterase-catalysed transesterification of Z-L-tyrosine p-nitrophenyl ester. Enzyme and Microbial Technology, 12 (5). pp. 374-377.

Owusu, RK and Cowan, DA (1989) Correlation between microbial protein thermostability and resistance to denaturation in aqueous-organic solvent 2-phase systems. ENZYME AND MICROBIAL TECHNOLOGY , 11 (9). pp. 568-574.

Owusu, Richard K and Cowan, Donald A (1989) Thermostable microbial protein stability in aqueous: organic two-solvent phase systems. Biochemical Society Transactions, 17. pp. 581-582.

Moody, GJ, Owusu, RK and Thomas, JDR (1988) Analysis of Diquat by Ion Selective Elecrodes. Analytical Letters, 21 (9). pp. 1653-1664.

Owusu, Richard K and Cowan, Donald A (1988) Thermostable microbial protein stability in aqueous: organic two-solvent phase systems. Biochemical Society Transactions , 17. pp. 581-582.

Moody, G. J., Owusu, Richard and Thomas, J. D. R. (1988) Studies on crown ether based potentiometric sensors for 4,4?-dipyridinium and related dications. The Analyst, 113 (1). pp. 65-69.

Moody, GJ, Owusu, Richard , Slawin, AMZ, Spencer, N and Stoddart, JF (1987) Non-covalent bonding interactions between tetraphenyborate anions and paraquat and diquat dications. Angewandte Chemie International Edition in English, 29 (9). pp. 890-892.

Owusu, Richard K, Trewhella, Martin J and Finch, Arthur (1987) Enthalpimetric flow analysis of urea using immobilized urease. Thermochimica Acta, 111. pp. 1-7.

Moody, GJ, Owusu, Richard and Thomas, JDR (1987) Liquid membrane ion-selective electrodes for diquat and paraquat. Analyst, 112 (2). pp. 121-127.

Marnoch, Gordon, Owusu, RK and Thomas, JDR (1987) Ion-pairing agents in ion-selective electrodes for diquat, paraquat and 4,4-dipyridinium dications. The Analyst, 112 (10). pp. 1347-1353.

Assubaie, F, N., Moody , G.J., Thomas, J.D.R. and Owusu, RK (1987) Membrane electrodes of herbicidal and pharmaceutical interest.. Poltugaliae Electrochimica Acta, 5. pp. 103-124.

Owusu, Richard and Finch, Arthur (1986) Flow microcalorimetric study of immobilized enzyme kinetics using the co-immobilized glucose oxidase-catalase system. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 872 (1-2). pp. 83-91.

Xie, Chang Li, Xu , Quiduan, Qu , Songsheng and Owusu, RK (1986) Studies on thermokinetic methods (I) determination of reaction rate constants and activation energies by calorimetry. Acta Physica-Chimia Sinica., 2. pp. 363-369.

Owusu, RK and Finch, A (1986) Determination of sugars by thermochemical monitoring of immobilized enzyme reactions. Journal of Wuhan University, 1. pp. 57-64.

Trewhella, Martin, Owusu, Richard and Finch, Arthur (1985) Flow microcalorimetric study of immobilized enzyme kinetics using the urea-immobilized urease system. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 830 (3). pp. 282-287.

Trewhella, M, Owusu, RK and Finch, Arthur (1985) Enthalpimetric measurements of the strengths of immobilized cholinesterase inhibitors. Thermochimica Acta, 90 (1). pp. 305-312.

Owusu, Richard and Finch, Arthur (1985) Study of immobilized yeast, Saccharomyces cerevisiae, using flow microcalorimetry.. The Journal of General and Applied Microbiology, 31 (3). pp. 221-230.