Joyce Agyei-Amponsah

Department

Consumer and Food Sciences

Degree

PhD Food science

Sensory, rheology, tribology and shelflife of reduced fat mayonnaise-type emulsions formulated with lipid-modified maize starch as fat replacer.

For my PhD research, I characterized two novel starch-lipid complexes produced by incorporating food-friendly lipids into maize starch through wet-heat processing and studied their application as fat replacers in reduced-fat mayonnaise-type emulsions. The study demonstrated the effective use of the two fat replacers to replace up to 80 % sunflower oil in the production of reduced-fat mayonnaise-type emulsions without compromising the desirable in-mouth textural properties of smoothness, creaminess, melting, mouth-coating and good lubrication.

Email

[email protected]

Supervisors

  • Prof MN Emmambux
  • Prof HL DeKock

Memberships

  • Fellow of Organization for Women in Science for the Developing World (OWSD).
  • African Network for Sensory Evaluation Research (ANSWER)
  • South African Association for Food Science and Technology (SAAFoST)
  • African Women in Agricultural Research and Development (AWARD)
  • Research Scientist Association (RSA), GAEC
  • Ghana Science Association (GSA)

Publications

  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., Effect of substituting sunflower oil with ‘clean label’ fat replacers on sensory profile, tribology and rheology of reduced-fat mayonnaise-type emulsions - Manuscript in Prep.
  • Agyei-Amponsah J., DeKock H.L., and Emmambux M.N., Descriptive, accelerated shelf life and consumer acceptance of mayonnaise-type emulsions formulated with lipid-modified maize starch as fat replacers - Manuscript in Prep.
  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., 2019. Sensory, tribological, and rheological profiling of “clean label” starch–lipid complexes as fat replacers. Starch‐Stärke, 71, 1800340.
  • M. Owureku-Asare, J.Agyei-Amponsah ,W.S.K.Agbemavor , F. Ocloo, J. Apatey, A.K. Sarfo, A. Agyeman, L. A. Twum, and M. Dodobi (2015).Effect of organic fertilizers on physical and chemical quality of sugar loaf pineapple (ananas comosus L) grown in two ecological sites in Ghana. African Journal of Food Agriculture, Nutrition and Development, 2015. 15(2): 9982 – 9995.
  • J. Agyei-Amponsah, M. Owureku-Asare, W.S.K Agbemavo, J. Armah, A. Agyeman, E. Baidoo, S. Dowuona and C. Tortoe (2014). Quality Characteristics of Pre-treated Yam Chips Produced From Irradiated Yams.  British Journal of Applied Science & Technology 2014. 4(36): 5045-5057.
  • M. Owureku-Asare, A. Adu-Gyamfi, J.Agyei-Amponsah ,W.S.K.Agbemavor , J. B. Adom-Mensah, S.Acquah, E. Quayson (2014). Effect of Gamma Irradiation Treatment and Storage on Physico-chemical, Microbial and Sensory Quality of Minimally Processed Pineapple (Ananascomosus).British Journal of Applied Science & Technology 4(19): 2752-2761.
  • M. Owureku-Asare, J. Agyei-Amponsah, F.K.Saalia, L. Alfaro, L.A. Espinoza-Rodezno, S. Sathivel (2014). Effect of Pretreatment on Physicochemical quality characteristics of dried Tomato (Lycopersiconesculentum).Afr J of Food science, Vol. 8(5), pp.253-259.
  • W.S.K Agbemavor, W Torgby-Tetteh, E. K.Quartey, J.Nunoo, W. Nunekpeku, M.Owureku-Asare, J. Agyei-Amponsah, J. Apatey (2014). Physico-chemical evaluation of fruits from the fourth filialgeneration of some breeding lines of tomatoes. Intl J of Nut and Fd Sciences 2014; 3(4): 318-325 320.
  • M. Owureku-Asare, J. Agyei-Amponsah , W. S. K. Agbemavor , A. Adu-Gyamfi, D.Larbi and A Sarfo, I. Asare, A. Buah-Kwofie (2014).Quality evaluation of dried food ingredients from local markets in southern Ghana. African Journal of Science and Research, 2014, (3)4:12-15.
  • W. Elegba, A. S. Appiah, E.Azu, N.Afful, W.K.S. Agbemavor, J.Agyei-Amponsah, M.Owureku-Asare, B. Quaye and K.E. Danso (2013). Effect of mosaic virus diseases on dry matter content and starch yield of five cassava (Manihotesculenta crantz) accessions in Ghana.  Afr. J. Biotechnol. Vol. 12(27), pp. 4310-4316.
  • J. Agyei-Amponsah (2015). Neglected and underutilized crops (NUC): Empowering the livelihood of smallholder women farmers in Africa. African Journal of Food Agriculture, Nutrition and Development, 2015. 15(3)

Conferences

  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., Rheology, tribology and mouthfeel sensory profiling of mayonnaise-type emulsions formulated using ‘clean label’ fat replacers. 23rd Biennial International SAAFoST Conference & exhibition, 1-4th September, 2019, Johannesburg, South Africa - oral presentation
  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., Sensory profile, tribology and rheology of maize starch modified with stearic acid and monoglyceride. 19th IUFoST World Congress of Food Science and Technology, 23rd -27th October, 2018, Mumbai, India - oral presentation
  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., Mouthfeel sensory profiling, rheology and tribology of mayonnaise-type emulsions formulated using ‘clean label’ fat replacers. 13th Pangborn Sensory Science Symposium, 28 July - 1 August, 2019, Edinburgh, UK – poster
  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., Tribology, rheology, texture and sensory profile of fat replacers for emulsions. 5th International Conference on Food Oral Processing. 1st – 4th July, 2018, Nottingham, UK – poster
  • Agyei-Amponsah J., Macakova L., DeKock H.L., and Emmambux M.N., Tribology, rheology, texture and sensory profile of fat replacers for emulsions. 22nd Biennial International SAAFoST Congress & Exhibition, 3rd - 6th September, 2017, Cape Town, South Africa – poster
  • J. Agyei-Amponsah, M. Owureku-Asare, W.S.K. Agbemavor, D. Ofori-Appiah, E. Ayeh, J. Apatey, K. E. Danso. Mutation induction, utilization and conservation of Dioscorea esculenta (lour) burk: A threatened yam species: Shelf-life studies. Presented at International Food and Agribusiness Management Association (IFAMA) Symposium in Cape-Town, South Africa on 18th June 2014 – poster
  • M. Owureku-Asare, J. Agyei- Amponsah, F.K. Saalia, L. Alfaro, L.A. Espinoza-Rodezno, S. Sathivel (2014). Effect of pretreatment on physicochemical quality characteristics of dried tomato (Lycopersicon esculentum). Presented at International Food and Agribusiness Management Association (IFAMA) Symposium in Cape- Town, South Africa on 18th June 2014 – poster
Published by Gertruida Erasmus

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