Dr Juliana Leite staff profile picture

Contact details +6469517257

Dr Juliana Leite MS, PhD

Research Officer (Food Digestion)

Riddet Institute

 

I am currently investigating the digestion of carbohydrate- and protein-rich food combinations using a dynamic in vitro gastrointestinal model. This research aims to better understand the breakdown of foods during the gastric and small intestinal phases, with the goal of optimizing nutrient release and absorption.

Key Areas of Study:

  • In vitro food digestion modeling

  • Protein and carbohydrate hydrolysis

  • Digestion of mixed meals

  • Gastric and intestinal phase interactions

  • Enzymatic activity and hydrolysis

  • Peptide release and bioavailability

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Professional

Contact details

  • Ph: +64 6 951 7257
    Location: Level 3, Te Rourou building, Riddet Institute, Massey University
    Campus: Palmerston North

Qualifications

  • Master in Sciences - University Of Sao Paulo (2012)
  • Doctor of Philosophy - University Of Sao Paulo (2018)

Research Expertise

Research Interests

Food digestion

Protein structures in dairy matrices

Protein functionality

Microwave pasteurization

Thermal treatments applied for food pasteurization and sterilization

Immunological factors in human milk

Milk enzymatic activity

Thematics

Future Food Systems

Area of Expertise

Field of research codes
Chemical Engineering (090400):
Chemical Science (030000):
Engineering (090000): Food Engineering (090802): Food Processing (090805): Food Sciences (090800): Process Control and Simulation (090407)

Keywords

Food digestion, Protein structures in dairy matrices, Thermal treatments applied for food pasteurization and sterilization and Milk enzymatic activity

Research Outputs

Journal

Leite, JAS., Montoya, CA., Maes, E., Hefer, C., Cruz, RAPA., Roy, NC., . . . McNabb, WC. (2023). Effect of Heat Treatment on Protein Self-Digestion in Ruminants’ Milk. Foods. 12(18)
[Journal article]Authored by: Dos Santos Leite, J., McNabb, W.
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3
Leite, JAS., Montoya, CA., Loveday, SM., Mullaney, JA., Loo, TS., McNabb, WC., . . . Roy, NC. (2023). The impact of heating and drying on protease activities of ruminant milk before and after in vitro infant digestion. Food Chemistry. 429
[Journal article]Authored by: Dos Santos Leite, J., McNabb, W.
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8
Leite, JAS., Robinson, RC., Salcedo, J., Ract, JNR., Quintal, VS., Tadini, CC., . . . Barile, D. (2022). The effect of microwave-assisted heating on bioactive and immunological compounds in donor human milk. Lwt. 161
[Journal article]Authored by: Dos Santos Leite, J.
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9
Ong, SL., Blenkiron, C., Haines, S., Acevedo-Fani, A., Leite, JAS., Zempleni, J., . . . McCann, MJ. (2021). Ruminant milk-derived extracellular vesicles: A nutritional and therapeutic opportunity?. Nutrients. 13(8)
[Journal article]Authored by: Acevedo Fani, A., Dos Santos Leite, J.
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34
2
Leite, JAS., Montoya, CA., Loveday, SM., Maes, E., Mullaney, JA., McNabb, WC., . . . Roy, NC. (2021). Heat-Treatments Affect Protease Activities and Peptide Profiles of Ruminants' Milk. Frontiers in Nutrition. 8
[Journal article]Authored by: Dos Santos Leite, J., McNabb, W.
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Leite, JAS., Migotto, AMA., Landgraf, M., Quintal, VS., Gut, JAW., & Tadini, CC. (2019). Pasteurization efficiency of donor human milk processed by microwave heating. Lwt. 115
[Journal article]Authored by: Dos Santos Leite, J.
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14
Leite, JAS., Quintal, VS., & Tadini, CC. (2019). Dielectric properties of infant formulae, human milk and whole and low-fat cow milk relevant for microwave heating. International Journal of Food Engineering. 15(5-6)
[Journal article]Authored by: Dos Santos Leite, J.
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9

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Thesis

Dos Santos Leite, JA. (2018). Impacto do processo térmico assistido por micro-ondas sobre a funcionalidade do leite humano these apresentada à Escola Politécnica da Universidad de São Paulo para obtenção do título de Doctor em Ciȇncias. (Doctoral Thesis, University of São Paulo, SP, Brazil) Dos, SLJA. (2018). Impacto do processo térmico assistido por micro-ondas sobre a funcionalidade do leite humano these apresentada à Escola Politécnica da Universidad de São Paulo para obtenção do título de Doctor em Ciȇncias. (Doctoral Thesis)
[Doctoral Thesis]Authored by: Dos Santos Leite, J.
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Dos Santos Leite, J. (2014). Master of Business Administration (MBA) in Asset and Service Operations Management. (Master's Thesis, University of Sao Paulo, Sao Paulo, Brazil)
[Masters Thesis]Authored by: Dos Santos Leite, J.
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Dos Santos Leite, J. (2012). Synthesis of potential intermediaries of active principles, always seeking the use of techniques to protect the environment. (Master's Thesis, University of São Paulo, SP, Brazi)
[Masters Thesis]Authored by: Dos Santos Leite, J.

Conference

Dos Santos Leite, J., McNabb, W., Roy, N., & Loveday, S. (2021). Combined thermal and drying processes affect protease activities of ruminants milk. Poster session presented at the meeting of The New Zealand Institute of Food Science and Technology (NZIFST) Conference 2021: Food – With Care/Kai – me te whakaaro nui. Palmerston North, New Zealand.
[Conference Poster]Authored by: Dos Santos Leite, J., McNabb, W.
McNabb, W., Roy, N., Loveday, S., & Dos Santos Leite, J. (2019, October). Native proteolytic systems in milk: heating dramatically increase activity. Presented at 11th NIZO Dairy Conference: Milk Protein Functionality. Papendal, The Netherlands.
[Conference Oral Presentation]Authored by: Dos Santos Leite, J.
Dos Santos Leite, J., McNabb, W., Roy, N., & Loveday, S. (2018). Harnessing ruminant milk proteolytic capacity to improve the nutritional quality of infant formula. Poster session presented at the meeting of Dairy Industry Workshop: Positioning Dairy for the Future. Palmerston North, New Zealand
[Conference Poster]Authored by: Dos Santos Leite, J., McNabb, W.
Dos Santos Leite, J., & Tadini, C. (2015). Dielectric properties of infant formulas relevant to heating by microwave energy. Poster session presented at the meeting of I FoRC Symposium: Advances in Food Science and Nutrition. São Paulo, Brazil
[Conference Poster]Authored by: Dos Santos Leite, J.
Dos Santos Leite, J., & Tadini, C. (2015). Dielectric properties of whole and low-fat milk from 2000 to 3000 MHz relevant to heating by microwave energy. Poster session presented at the meeting of ICEF 2015: 12th International Congress on Engineering and Food. Quebec, Canada
[Conference Poster]Authored by: Dos Santos Leite, J.

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Dos Santos Leite, J., & C. S. Barboza, J. (2011). Synthesis of oximes from aldehydes using technique based on sustainable development. Poster session presented at the meeting of VII Scientific initiation meeting e VI Meeting of graduate. São Paulo, Brazil
[Conference Poster]Authored by: Dos Santos Leite, J.
Dos Santos Leite, J., & Holanda, M. (2008). Analysis and optimization of steam cycle and combined cycle for destroying municipal solid waste. Poster session presented at the meeting of Scientific initiation meeting and meeting of graduate. São Paulo, Brazil
[Conference Poster]Authored by: Dos Santos Leite, J.
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Consultancy and Languages

Languages

  • English
    Last used: Everyday
    Spoken ability: Excellent
    Written ability: Excellent
  • Portuguese
    Last used: Mother language
    Spoken ability: Excellent
    Written ability: Excellent

Teaching and Supervision

Contact Supervisor

Summary of Doctoral Supervision

Position Current Completed
Co-supervisor 1 0

Current Doctoral Supervision

Co-supervisor of:

  • Ushenya Peiris - Doctor of Philosophy
    From mouth to model: Mimicking oral processing for better in vitro digestion models

Media and Links

Media

  • 01 Jan 2021 - Newspaper, Online
    Scientist looking to improve milk enzymes.
    Stuff catalyst Science page, New Zealand
  • 01 Jan 2019 - Newspaper, Community Service, Online
    Microwave Preserves Nutrients in Breast Milk

Other Links