Assistant Professor Dr Stephenie Wong Yoke Wei

Assistant Professor | Department of Food Science and Nutrition

Academic Qualifications

PhD Food Safety
MSc Food Biotechnology
BSc (Hons) Food Sc & Technology

Areas of Interest
Food safety in food service operation
Probiotics: screening and microencapsulation studies

Research Grants

  1. Name of grant: REIG
    Funder: UCSI University
    Project Title: Development of Internet-of-things for continuous cultivation and extraction system
    Code: REIG-FAS-2022/003
    Duration: 1/4/2022- 31/3/2024
    Role: Co-PI 
    Amount: RM 50,000
    Status: Active
  2. Name of grant: REIG
    Funder: UCSI University
    Project Title: Development of ginger extract loaded paramagnetic nanoparticles: a potential nanotheranostic approach for triple negative breast cancer treatment
    Code: REIG-FAS-2021/005
    Duration: 1/4/21 - 31/3/23
    Role: PI
    Amount: RM 50,000
    Status: Active
  3. Name of grant: FRGS 
    Funder: MOHE
    Project Title: Evaluation of electric fields incorporated aqueous two-phase system for keratinase separation and bioconversion
    Code: FRGS/1/2020/TK0/UCSI/02/6
    Duration: 1/11/20 - 30/10/22
    Role: PI
    Amount: RM 121,200
    Status: Active
  4. Name of grant: PSIF 
    Funder: UCSI University
    Project Title: Proteome profiling to decipher the role of lavender essential oil on reversal antibiotic resistance mechanisms of multidrug resistant Klebsieela pneumonia
    Code: Proj-ln-FAS-061
    Duration: 1/6/19 - 31/5/20
    Role: Co-PI 
    Amount: RM 25,000
    Status: Completed
  5. Name of grant: PSIF 
    Funder: UCSI University
    Project Title: Insight into school food handlers’ practices, barriers and beliefs for safe food handling in Klang Valley
    Duration: 1/12/16 - 30/6/19
    Role: Principal investigator
    Amount: RM24,000
    Status: Completed


Current research project

  1. Probiotic properties of water kefir culture
  2. Food safety in foodservice operations
  3. Antimicrobial activity and survival of water kefir culture in simulated gastric pH and bile condition (2019)
  4. Food safety knowledge, beliefs and perceptions of school food handlers and teachers in Klang Valley (2019)
  5. Effect of Different Coating Gums on the Survival of Microencapsulated Probiotics under Simulated Gastrointestinal Condition (2017)


  1. How, C.W., Teoh, S.L., Loh, J.S., Tan, S.L.K., Foo, J.B., Ng, H.S., Wong, S.Y.W., Ong, Y.S. (2022) Emerging Nanotheranostics for 5-Fluorouracil in Cancer Therapy: A Systematic Review on Efficacy, Safety, and Diagnostic Capability. Front Pharmacol. 13:882704. doi: 10.3389/fphar.2022.882704. PMID: 35662688; PMCID: PMC9158334. 
  2. Wong, S.Y.W., Mahyudin, N.A., Ho, J.A., and Ungku Fatimah, U.Z.A. (2022) Evaluation of self-efficacy-based Intervention: Improving school food handlers’ selected food safety behavior. Food Protection Trends, 42(1). 8-21.
  3. Kee, P.E., Yim, H.S., Kondo, A., Wong, S.Y.W., Lan, J.C.-W. and Ng, H.S. (2022) Evaluation of ionic liquids/salt aqueous biphasic flotation system on recovery of Kytococcus sedentarius TWHKC01 keratinase from crude feedstock. Journal of the Taiwan Institute of Chemical Engineers, In Press.
  4. Ng, H.S., Kee, P.E., Wu, Y.-C., Chen, L., Wong, S.Y.W., and Lan, J.C.-W. (2021) Enhanced recovery of astaxanthin from recombinant Kluyveromyces marxianus with ultrasonication-assisted alcohol/salt aqueous biphasic system. Journal of Bioscience and Bioengineering, 132(5). 513-518.
  5. Kee, P.E., Yim, H.S., Kondo, A., Wong, S. Y.W., Chen, P.-T., Lan, J.C.-W., and Ng, H.S. (2021) Incorporation of electric fields to ionic liquids-based aqueous biphasic system for enhanced recovery of extracellular Kytococcus sedentarius TWHKC01 keratinase. Journal of the Taiwan Institute of Chemical Engineers, 125: 35-40.
  6. Wong, S.Y.W., Izzah, A., Mahyudin, N.A., Ho, J.A. and *Ungku Fatimah, U.Z.A. (2020) Insight into food handlers’ perceived barriers and motivators to perform food temperature control practices in Malaysian public schools. Food Research 4 (3) : 793 - 804.
  7. Hoh, S.J., Yee, S.F., Chong, K.Y., Chan, H.K. and Wong, S.Y.W. (2020) Effect of gums coating materials on the survival of microencapsulated probiotics under simulated gastrointestinal conditions. Materials Today: Proceedings 29: 16–19.
  8. Chia PX, Tan LJ, Huang CMY, CHAN EWC*, Wong SYW, (2015) Hydrogel beads from sugar cane bagasse and palm kernel cake, and the viability of encapsulated Lactobacillus acidophilus. E-Polymers 15(6), 411-418 (IF: 0.57).
  9. R.P.K Sahadeva, Leong, S.F., Chua, J.H., Tan, C.H., Chan H. Y., Tong E.V., Wong S.Y.W. and Chan, H.K. (2011) Survival of commercial probiotic strains to pH and bile. International Food Research Journal, 18(4), 1515-1522
  10. The safety of canned foods, Malaysian Food Canners Association,
  11. Wong S.Y.W., B.M. Kabeir, M. Shuhaimi, M. Rosfarizan, and A.M. Yazid (2010) Viability of Bifidobacterium pseudocatenulatum G4 after spray drying and freeze drying. Microbiology Insights, 3, 37-43
  12. BM Kabeir, M Shuhaimi, W. Stephenie, S. Nazamid and AM Yazid (2009) Heat adaptation towards improve survival of Bifidobacterium longum BB536 during the spray drying of Sudanese fermented Medida. African Journal of Biotechnology, 8:8, 1615-1618
  13. W. Stephenie, B. M. Kabeir, M. Shuhaimi, M. Rosfarizan, and A. M. Yazid (2007) Influence of pH and impeller tip speed on the cultivation of Bifidobacterium pseudocatenulatum G4 in a milk-based medium. Biotechnology and Bioprocess Engineering,12, 1-9
  14. W. Stephenie, B. M. Kabeir, M. Shuhaimi, M. Rosfarizan, and A. M. Yazid (2007) Growth optimization of a probiotic candidate, Bifidobacterium pseudocatenulatum G4, in milk-based medium using response surface methodology. Biotechnology and Bioprocess Engineering, 12, 106-113
  15. B. M. Kabeir, A. M. Yazid, W. Stephenie, M. Nazrul Hakim, O. Muhammad Anas and M. Shuhaimi (2007) Safety evaluation of Bifidobacterium pseudocatenulatum G4 as assessed in BALB/C mice. Letters in Applied Microbiology, 46(1), 32-37
  16. W Stephenie, KW Yap, MK Barka, M Shuhaimi, M Rosfarizan, AM Yazid (2006) Survival of Bifidobacterium pseudocatenulatum strains isolated from breast-fed infants to simlated gastric pH environment. Malaysian Applied Biology, 35 (1), 57


  1. Wong, S. Y. W., Ahmad, I. A., Mahyudin, N. A., Ho, J. A., & Ungku Zainal Abidin, U. F. (2019). Needs assessment and the development of a self-efficacy-building intervention to improve food handlers’ handwashing practices in Klang Valley school canteens. Presented at 2nd International Food Research Conference 2019. 27–29 August 2019. Putrajaya, Malaysia.
  2. Hoh, S.J., Yee, S.F., Chong, K.Y., Chan, H.K. and Wong, S.Y.W. Effect of gums coating materials on the survival of microencapsulated probiotics under simulated gastrointestinal conditions. 4th Advanced Materials Conference 2018, 4th AMC 2018, 27-28 November 2018, Hilton Kuching Hotel, Kuching, Sarawak,
  3. Wong Stephenie Yoke Wei; Mahyudin, Nor Ainy; Ho, Jo Ann and Ungku Zainal Abidin, Ungku Fatimah. Perceived Barriers and Motivators of School Food Handlers to Using Food Thermometers in Klang Valley, Malaysia. 7th Asian Conference on Food and Nutrition Safety, 11-13 October 16, at St Giles Wembley, Penang
  4. International Food Safety Conference 2012, 16-18th July 2012, organized by MIFT, Crowne Plaza Mutiara
  5. International Conference on Learning and Teaching in Higher Education, Tunku Abdul Rahman College, Putrajaya Marriott Hotel, 4-5 August 2008
  6. W Stephenie and S.C. Yap. The use of inulin in the development of yogurt, 2nd International Conference on East-West Perspectives on Functional Foods: Science, Innovations and Claims, November 5-7, 2007, Crowne Plaza Mutiara, Kuala Lumpur, Malaysia.

Awards and Recognitions

  1. Long service award (2017). UCSI University
  2. Gold medal: Shuhaimi, M, Kabeir, BM, Yazid, AM, Stephenie, W, Nazrul Hakim, M, Muhammad Anas, O and Mohd Yamid, S (2008) Safety Evaluation of Probiotic Food Candidate as Assessed in BALB/c Mice. Pameran Reka Cipta, Penyelidikan dan Inovasi UPM 2008. 29-31 July 2008, Pusat Kebudayaan dan Kesenian Sultan Salahuddin Abdul Aziz Shah, UPM, Serdang. UPM/ Malaysia National 2008
  3. Silver medal: Shuhaimi, M, Kabeir, BM, Yazid, AM, Nazrul Hakim, M, Nazamid, S and Stephenie, W (2009) Development of probiotic candidate for gut health. Malaysia Technology Expo 2009, 19-21 February 2009, Kuala Lumpur. Technology Expo 2009/ Malaysia National 2009
  4. Best employee of the month award by Sunway Lagoon Resort Hotel (June 2002)

Networks and Collaborations on Research

  1. Professional Member, Malaysian Institute of Food Technologiest (MIFT)
  2. Life Member, Asian Federation of Biotechnology Malaysia Chapter (AFOBMC)
  3. CS Progyms Pharmaceutical Sdn Bhd (2012-2013). Effect of selected collagen drinks on skin properties

Contributions to Society

  1. Certified trainer for the 'Program Latihan Pengendali Makanan, Kementerian Kesihatan Malaysia)
  2. Lunch Box Event for Malaysia Secondary School Students. Wow Food Fair and Lunchbox Competition 2018 - UCSI University.