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Dr Dominic Agyei

Lecturer

PhD. (Monash), BSc. Hons (KNUST)

Dr Dominic Agyei staff photo

Contact

Tel 64 3 479 7545 Ext 7545
Email dominic.agyei@otago.ac.nz
Location Gregory 307

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About

Dr Dominic Agyei is a lecturer in the Department of Food Science. Dominic holds a BSc degree in Food Science and Technology, from KNUST, Ghana; and a PhD in Chemical (Bioprocess) Engineering from Monash University, Australia.

After his PhD, Dominic worked as an Alfred Deakin Postdoctoral Research Fellow at Deakin University, Australia. He worked on the use of enzymes in the development of peptide-lipid bio-conjugates for food and pharmaceutical applications.

Dominic is now a lecturer at the Food Science Department where he is responsible for teaching and coordinating courses in Food Science and related subjects at both undergraduate and postgraduate level.

Dominic is passionate about research that transforms biological processes and materials into high value bioactive and nutritional products and ingredients that positively influence food quality, food functionality and human health. His research interests include the bioprocessing and engineering of food enzymes, their use in the development of functional foods and in the valorisation or treatment of food wastes. Dominic also has an interest in food safety, as well as the nutritional and health impact of indigenous foods in mitigating malnutrition and food insecurity.

Dominic is keen on collaborating with individual researchers and industry partners on enzyme-based development of high value bioactive and nutritional food products and ingredients.

Dominic is a member of Food Waste Innovation, a University of Otago Research Theme which measures food waste, develops reduction strategies, applies innovative technology, and works to modify producer and consumer behaviour.

Teaching

Course Contributor to

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Research

Major Research Interests

  • Enzyme-based transformation of food molecules (proteins, lipids, carbohydrates) to improve their functional, biological and physicochemical properties
  • Design of bioprocesses for the extraction and purification of bioactive compounds
  • Use of enzymes for the valorisation and treatment of food wastes
  • Role of indigenous foods in mitigating malnutrition and food insecurity
  • Assessment of food safety knowledge and practices in educational institutions in Ghana (done in partnership with collaborators in Ghana)

Research Areas

  • Discovery, processing and engineering of enzymes for food application
  • Production and biological properties of functional foods
  • Microbial fermentation science
  • Food safety and food security

Postgraduate Supervision

Current Students

Thirawat (TK) Tantamacharik (PhD) “Investigation of proteolytic modification of milk proteins to generate novel biomaterials”

Abduh Setya (PhD) “Effect of pulsed electric field and food processing on starch”

Sheba Duque (PhD) “Understanding the effect of food processing on proteins and starch in selected cereal grains”

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Publications

Duque, S. M. M., Leong, S. Y., Agyei, D., Singh, J., Larsen, N., & Oey, I. (2020). Modifications in the physicochemical properties of flour “fractions” after Pulsed Electric Fields treatment of thermally processed oat. Innovative Food Science & Emerging Technologies. Advance online publication. doi: 10.1016/j.ifset.2020.102406

Duque, S. M. M., Leong, S. Y., Agyei, D., Singh, J., Larsen, N., & Oey, I. (2020). Understanding the impact of Pulsed Electric Fields treatment on the thermal and pasting properties of raw and thermally processed oat flours. Food Research International, 129, 108839. doi: 10.1016/j.foodres.2019.108839

Ji, D., Xu, M., Udenigwe, C. C., & Agyei, D. (2020). Physicochemical characterisation, molecular docking, and drug-likeness evaluation of hypotensive peptides encrypted in flaxseed proteome. Current Research in Food Science, 3, 41-50. doi: 10.1016/j.crfs.2020.03.001

Deng, Y., Xu, M., Ji, D., & Agyei, D. (2020). Optimization of β-galactosidase production by batch cultures of Lactobacillus leichmannii 313 (ATCC 7830™). Fermentation, 6(1), 27. doi: 10.3390/fermentation6010027

Agyei, D., Owusu-Kwarteng, J., Akabanda, F., & Akomea-Frempong, S. (2020). Indigenous African fermented dairy products: Processing technology, microbiology and health benefits. Critical Reviews in Food Science & Nutrition, 60(6), 991-1006. doi: 10.1080/10408398.2018.1555133

Chapter in Book - Research

Akanbi, T. O., Agyei, D., & Saari, N. (2019). Food enzymes from extreme environments: Sources and bioprocessing. In M. Kuddus (Ed.), Enzymes in food biotechnology: Production, applications, and future prospects. (pp. 795-816). London, UK: Academic Press. doi: 10.1016/B978-0-12-813280-7.00046-3

Agyei, D., Akanbi, T. O., & Oey, I. (2019). Enzymes for use in functional foods. In M. Kuddus (Ed.), Enzymes in food biotechnology: Production, applications, and future prospects. (pp. 129-147). London, UK: Academic Press. doi: 10.1016/B978-0-12-813280-7.00009-8

Imai, K., Ji, D., Nwachukwu, I. D., Agyei, D., & Udenigwe, C. C. (2019). Bioinformatics and chemometrics for discovering biologically active peptides from food proteins. In G. W. Smithers (Ed.), Reference module in food science. Elsevier. doi: 10.1016/B978-0-08-100596-5.22878-3

Aryee, A. N. A., Agyei, D., & Akanbi, T. O. (2018). Food for oxidative stress relief: Polyphenols. In G. W. Smithers (Ed.), Reference module in food science. Elsevier. doi: 10.1016/B978-0-08-100596-5.21779-4

Tantamacharik, T., Carne, A., Agyei, D., Birch, J., & Bekhit, A. E.-D. A. (2018). Use of plant proteolytic enzymes for meat processing. In M. G. Guevara & G. R. Daleo (Eds.), Biotechnological applications of plant proteolytic enzymes. (pp. 43-67). Cham, Switzerland: Springer. doi: 10.1007/978-3-319-97132-2_3

Agyei, D., Bambarandage, E., & Udenigwe, C. (2018). The role of bioinformatics in the discovery of bioactive peptides. In G. Smithers (Ed.), Reference module in food science. Elsevier. doi: 10.1016/B978-0-08-100596-5.21863-5

Aryee, A. N. A., Agyei, D., & Udenigwe, C. C. (2018). Impact of processing on the chemistry and functionality of food proteins. In R. Y. Yada (Ed.), Proteins in food processing. (2nd ed.) (pp. 27-45). London, UK: Woodhead Publishing. doi: 10.1016/B978-0-08-100722-8.00003-6

Agyei, D., Tan, K.-X., Pan, S., Udenigwe, C. C., & Danquah, M. K. (2018). Peptides for biopharmaceutical applications. In S. Koutsopoulos (Ed.), Peptide applications in biomedicine, biotechnology and bioengineering. (pp. 231-252). Woodhead. doi: 10.1016/B978-0-08-100736-5.00009-0

Acquah, C., Agyei, D., Monney, I., Pan, S., & Danquah, M. K. (2018). Aptameric sensing in food safety. In A. M. Holban & A. M. Grumezescu (Eds.), Food control and biosecurity (Handbook of food bioengineering, Vol. 16). (pp. 259-277). London, UK: Academic Press. doi: 10.1016/B978-0-12-811445-2.00007-6

Wang, B., Akanbi, T. O., Agyei, D., Holland, B. J., & Barrow, C. J. (2018). Coacervation technique as an encapsulation and delivery tool for hydrophobic biofunctional compounds. In A. M. Grumezescu & A. M. Holban (Eds.), Role of materials science in food bioengineering (Handbook of food bioengineering, Vol. 19). (pp. 235-261). London, UK: Academic Press. doi: 10.1016/B978-0-12-811448-3.00007-3

Yao, S., Agyei, D., & Udenigwe, C. C. (2018). Structural basis of bioactivity of food peptides in promoting metabolic health. In Advances in food and nutrition research. Elsevier. doi: 10.1016/bs.afnr.2017.12.002

Holland, B., Agyei, D., Akanbi, T. O., Wang, B., & Barrow, C. J. (2017). Bioprocessing of plant-derived bioactive phenolic compounds. In A. M. Grumezescu & A. M. Holban (Eds.), Food biosynthesis (Hanbook of food bioengineering). (pp. 135-181). London, UK: Academic Press. doi: 10.1016/B978-0-12-811372-1.00005-1

Gnasegaran, G. K., Agyei, D., Pan, S., Sarethy, I. P., Acquah, C., & Danquah, M. K. (2017). Process development for bioactive peptide production. In M. Puri (Ed.), Food bioactives: Extraction and biotechnology applications. (pp. 91-110). Cham, Switzerland: Springer. doi: 10.1007/978-3-319-51639-4_4

Agyei, D., Pan, S., Acquah, C., & Danquah, M. K. (2017). Bioactivity profiling of peptides from food proteins. In A. M. Grumezescu & A. M. Holban (Eds.), Soft chemistry and food fermentation (Handbook of food bioengineering. Vol. 3). (pp. 49-77). London, UK: Academic Press. doi: 10.1016/B978-0-12-811412-4.00003-5

Agyei, D., Danquah, M. K., Sarethy, I. P., & Pan, S. (2015). Antioxidative peptides derived from food proteins. In V. Rani & U. C. S. Yadav (Eds.), Free radicals in human health and disease. (pp. 417-430). New Delhi, India: Springer. doi: 10.1007/978-81-322-2035-0_26

Agyei, D., Shanbhag, B. K., & He, L. (2015). Enzyme engineering (immobilization) for food applications. In R. Y. Yada (Ed.), Improving and tailoring enzymes for food quality and functionality. (pp. 213-235). Cambridge, UK: Woodhead Publishing. doi: 10.1016/B978-1-78242-285-3.00011-9

Agyei, D., Shanbhag, B. K., & He, L. (2015). Enzymes for food waste remediation and valorisation. In R. Y. Yada (Ed.), Improving and tailoring enzymes for food quality and functionality. (pp. 123-145). Cambridge, UK: Woodhead Publishing. doi: 10.1016/B978-1-78242-285-3.00006-5

Agyei, D., Potumarthi, R., & Danquah, M. K. (2015). Food-derived multifunctional bioactive proteins and peptides: Sources and production. In V. K. Gupta, M. G. Tuohy, M. Lohani & A. O'Donovan (Eds.), Biotechnology of bioactive compounds: Sources and applications. (pp. 483-505). Chichester, UK: Wiley.

Agyei, D., Potumarthi, R., & Danquah, M. K. (2015). Food-derived multifunctional bioactive proteins and peptides: Applications and recent advances. In V. K. Gupta, M. G. Tuohy, M. Lohani & A. O'Donovan (Eds.), Biotechnology of bioactive compounds: Sources and applications. (pp. 507-524). Chichester, UK: Wiley. doi: 10.1002/9781118733103.ch20

Agyei, D., Potumarthi, R., & Danquah, M. K. (2013). Production of Lactobacillus proteinases for the manufacture of bioactive peptides: Part II: Downstream processes. In S.-K. Kim (Ed.), Marine proteins and peptides: Biological activities and applications. (pp. 231-251). Chichester, UK: Wiley-Blackwell. doi: 10.1002/9781118375082.ch10

Agyei, D., Potumarthi, R., & Danquah, M. K. (2013). Production of Lactobacillus proteinases for the manufacture of bioactive peptides: Part I: Upstream processes. In S.-K. Kim (Ed.), Marine proteins and peptides: Biological activities and applications. (pp. 207-229). Chichester, UK: Wiley-Blackwell. doi: 10.1002/9781118375082.ch10

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Journal - Research Article

Duque, S. M. M., Leong, S. Y., Agyei, D., Singh, J., Larsen, N., & Oey, I. (2020). Modifications in the physicochemical properties of flour “fractions” after Pulsed Electric Fields treatment of thermally processed oat. Innovative Food Science & Emerging Technologies. Advance online publication. doi: 10.1016/j.ifset.2020.102406

Agyei, D., Owusu-Kwarteng, J., Akabanda, F., & Akomea-Frempong, S. (2020). Indigenous African fermented dairy products: Processing technology, microbiology and health benefits. Critical Reviews in Food Science & Nutrition, 60(6), 991-1006. doi: 10.1080/10408398.2018.1555133

Deng, Y., Xu, M., Ji, D., & Agyei, D. (2020). Optimization of β-galactosidase production by batch cultures of Lactobacillus leichmannii 313 (ATCC 7830™). Fermentation, 6(1), 27. doi: 10.3390/fermentation6010027

Ji, D., Xu, M., Udenigwe, C. C., & Agyei, D. (2020). Physicochemical characterisation, molecular docking, and drug-likeness evaluation of hypotensive peptides encrypted in flaxseed proteome. Current Research in Food Science, 3, 41-50. doi: 10.1016/j.crfs.2020.03.001

Duque, S. M. M., Leong, S. Y., Agyei, D., Singh, J., Larsen, N., & Oey, I. (2020). Understanding the impact of Pulsed Electric Fields treatment on the thermal and pasting properties of raw and thermally processed oat flours. Food Research International, 129, 108839. doi: 10.1016/j.foodres.2019.108839

Ji, D., Udenigwe, C. C., & Agyei, D. (2019). Antioxidant peptides encrypted in flaxseed proteome: An in silico assessment. Food Science & Human Wellness, 8(3), 306-314. doi: 10.1016/j.fshw.2019.08.002

Abduh, S. B. M., Leong, S. Y., Agyei, D., & Oey, I. (2019). Understanding the properties of starch in potatoes (Solanum tuberosum var. Agria) after being treated with pulsed electric field processing. Foods, 8(5), 159. doi: 10.3390/foods8050159

Acquah, C., Chan, Y. W., Pan, S., Agyei, D., & Udenigwe, C. C. (2019). Structure-informed separation of bioactive peptides. Journal of Food Biochemistry, 43(1), e12765. doi: 10.1111/jfbc.12765

Ji, D., Oey, I., & Agyei, D. (2019). Purification, characterization and thermal inactivation kinetics of β-galactosidase from Lactobacillus leichmannii 313. LWT, 116, 108545. doi: 10.1016/j.lwt.2019.108545

Agyei, D., Pan, S., Acquah, C., Bekhit, A. E.-D. A., & Danquah, M. K. (2019). Structure-informed detection and quantification of peptides in food and biological fluids. Journal of Food Biochemistry, 43(1), e12482. doi: 10.1111/jfbc.12482

Dzuvor, C. K. O., Taylor, J. T., Acquah, C., Pan, S., & Agyei, D. (2018). Bioprocessing of functional ingredients from flaxseed. Molecules, 23(10), 2444. doi: 10.3390/molecules23102444

Aryee, A. N. A., Agyei, D., & Akanbi, T. O. (2018). Recovery and utilization of seaweed pigments in food processing. Current Opinion in Food Science, 19, 113-119. doi: 10.1016/j.cofs.2018.03.013

Agyei, D., Acquah, C., Tan, K. X., Hii, H. K., Rajendran, S. R. C. K., Udenigwe, C. C., & Danquah, M. K. (2018). Prospects in the use of aptamers for characterizing the structure and stability of bioactive proteins and peptides in food. Analytical & Bioanalytical Chemistry, 410(2), 297-306. doi: 10.1007/s00216-017-0599-9

Udenigwe, C. C., Okolie, C. L., Qian, H., Ohanenye, I. C., Agyei, D., & Aluko, R. E. (2017). Ribulose-1,5-bisphosphate carboxylase as a sustainable and promising plant source of bioactive peptides for food applications. Trends in Food Science & Technology, 69(Part A), 74-82. doi: 10.1016/j.tifs.2017.09.001

Shi, A., Chen, X., Liu, L., Hu, H., Liu, H., Wang, Q., & Agyei, D. (2017). Synthesis and characterization of calcium-induced peanut protein isolate nanoparticles. RSC Advances, 7(84), 53247-53254. doi: 10.1039/C7RA07987G

Wang, J., Shi, A., Agyei, D., & Wang, Q. (2017). Formulation of water-in-oil-in-water (W/O/W) emulsions containing trans-resveratrol. RSC Advances, 7, 35917-35927. doi: 10.1039/c7ra05945k

Acquah, C., Obeng, E. M., Agyei, D., Ongkudon, C. M., Moy, C. K. S., & Danquah, M. K. (2017). Nano-doped monolithic materials for molecular separation. Separations, 4(1), 2. doi: 10.3390/separations4010002

Agyei, D., Ahmed, I., Akram, Z., Iqbal, H. M. N., & Danquah, M. K. (2017). Protein and peptide biopharmaceuticals: An overview. Protein & Peptide Letters, 24(2), 94-101. doi: 10.2174/0929866523666161222150444

Acquah, C., Danquah, M. K., Agyei, D., Moy, C. K. S., Sidhu, A., & Ongkudon, C. M. (2016). Deploying aptameric sensing technology for rapid pandemic monitoring. Critical Reviews in Biotechnology, 36(6), 1010-1022. doi: 10.3109/07388551.2015.1083940

Agyei, D., Ongkudon, C. M., Wei, C. Y., Chan, A. S., & Danquah, M. K. (2016). Bioprocess challenges to the isolation and purification of bioactive peptides. Food & Bioproducts Processing, 98, 244-256. doi: 10.1016/j.fbp.2016.02.003

Li, H., Le Brun, A. P., Agyei, D., Shen, W., Middelberg, A. P. J., & He, L. (2016). Stabilizing and destabilizing protein surfactant-based foams in the presence of a chemical surfactant: Effect of adsorption kinetics. Journal of Colloid & Interface Science, 462, 56-63. doi: 10.1016/j.jcis.2015.08.068

Agyei, D., & He, L. (2015). Evaluation of cross-linked enzyme aggregates of Lactobacillus cell-envelope proteinases, for protein degradation. Food & Bioproducts Processing, 94, 59-69. doi: 10.1016/j.fbp.2015.01.004

Agyei, D. (2015). Bioactive proteins and peptides from soybeans. Recent Patents on Food, Nutrition & Agriculture, 7(2), 100-107. doi: 10.2174/2212798407666150629134141

Tan, M. X., Agyei, D., Pan, S., & Danquah, M. K. (2015). Parametric investigation of batch adsorption of proteins onto polymeric particles. Current Pharmaceutical Biotechnology, 16(9), 816-822. doi: 10.2174/1389201016666150629102624

Monney, I., Agyei, D., Ewoenam, B. S., Priscilla, C., & Nyaw, S. (2014). Food hygeine and safety practices among street food vendors: An assessment of compliance, institutional and legislative framework in Ghana. Food & Public Health, 4(6), 306-315. doi: 10.5923/j.fph.20140406.08

Agyei, D., Tambimuttu, S., Kasargod, B., Gao, Y., & He, L. (2014). Quick and low cost immobilization of proteinases on polyesters: Comparison of lactobacilli cell-envelope proteinase and trypsin for protein degradation. Journal of Biotechnology, 188, 53-60. doi: 10.1016/j.jbiotec.2014.08.007

Chan, A. S., Danquah, M. K., Agyei, D., Hartley, P. G., & Zhu, Y. (2014). A simple microfluidic chip design for fundamental bioseparation. Journal of Analytical Methods in Chemistry, 2014, 175457. doi: 10.1155/2014/175457

Chan, A. S., Danquah, M. K., Agyei, D., Hartley, P. G., & Zhu, Y. (2014). A parametric study of a monolithic microfluidic system for on-chip biomolecular separation. Separation Science and Technology, 49(6), 854-860. doi: 10.1080/01496395.2013.872144

Agyei, D., Lim, W., Zass, M., Tan, D., & Danquah, M. K. (2013). Bioanalytical evaluation of Lactobacillus delbrueckii subsp. lactis 313 cell-envelope proteinase extraction. Chemical Engineering Science, 95, 323-330. doi: 10.1016/j.ces.2013.03.049

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