Cited by 254Proteins in Food SystemsProtein Hydrolysis and Bioactive PeptidesFood and Agricultural Sciences

How processing may affect milk protein digestion and overall physiological outcomes: A systematic review

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van Lieshout, Glenn A. A., Lambers, Tim T., Bragt, Marjolijn C. E., Hettinga, Kasper A.·2020·Critical Reviews in Food Science and Nutrition

Abstract

Dairy is one of the main sources for high quality protein in the human diet. Processing may, however, cause denaturation, aggregation, and chemical modifications of its amino acids, which may impact protein quality. This systematic review covers the effect of milk protein modifications as a result of heating, on protein digestion and its physiological impact. A total of 5363 records were retrieved through the Scopus database of which a total of 102 were included. Although the degree of modification highly depends on the exact processing conditions, heating of milk proteins can modify several amino acids. In vitro and animal studies demonstrate that glycation decreases protein digestibility, and hinders amino acid availability, especially for lysine. Other chemical modifications, including oxidation, racemization, dephosphorylation and cross-linking, are less well studied, but may also impact protein digestion, which may result in decreased amino acid bioavailability and functionality. On the other hand, protein denaturation does not affect overall digestibility, but can facilitate gastric hydrolysis, especially of β-lactoglobulin. Protein denaturation can also alter gastric emptying of the protein, consequently affecting digestive kinetics that can eventually result in different post-prandial plasma amino acid appearance. Apart from processing, the kinetics of protein digestion depend on the matrix in which the protein is heated. Altogether, protein modifications may be considered indicative for processing severity. Controlling dairy processing conditions can thus be a powerful way to preserve protein quality or to steer gastrointestinal digestion kinetics and subsequent release of amino acids. Related physiological consequences mainly point towards amino acid bioavailability and immunological consequences.

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Crossref · 10.1080/10408398.2019.1646703

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  • The decline in pH from d 0 to d 20 likely resulted from the conversion of residual lactose into lactic acid, whereas the subsequent rise from d 20 to d 30 may be due to the formation of alkaline compounds from protein degradation.

    “The decline from d 0 to d 20 likely resulted from the conversion of residual lactose into lactic acid, whereas the subsequent rise from d 20 to d 30 may be due to the formation of alkaline compounds from protein degradation (van Lieshout et al., 2020).”

    From Impact of lactic acid bacteria coculture on the quality characteristics of goat cheese during ripening (2025) · cites this paper as van Lieshout et al., 2020

    The Physiological consequences section (page unavailable) says that protein fermentation in the lower gastrointestinal tract can produce ammonia, lending limited support to one proposed mechanism. It does not link that process to a rise in dairy-product pH, or address the d 0–20 decline, residual lactose conversion to lactic acid, or the d 20–30 rise. (LLM, conf=0.75)

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Research works printed but not linked: 1

  1. Sarriá, B., R. López-Fandiño, and M. P. Vaquero. 2000. Protein nutritive utilization in rats fed powder and liquid infant formulas.. Food Science and Technology International 9 (1):9–16.

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Authors
van Lieshout, G. A. A., Lambers, T. T., Bragt, M. C. E., & Hettinga, K. A.
Affiliations
  • FrieslandCampina, Amersfoort, the Netherlands
  • FrieslandCampina (Netherlands) (NL)
  • Wageningen University & Research (NL)
Corresponding author
Hettinga, Kasper A.
Venue
Critical Reviews in Food Science and Nutrition
Published
2019-08-22
Volume
60
Issue
14
Pages
2422-2445
ISSN
  • 1040-8398 (ISSN-L)
  • 1549-7852
OpenAlex
W2969873245
Cited by
254
References
127
Citations by year
2026: 30 · 2025: 40 · 2024: 34 · 2023: 48 · 2022: 41 · 2021: 36 · 2020: 24 · 2019: 1
FWCI
2.30
Type
journal article
Language
en
Open access
Locations
  • Critical Reviews in Food Science and Nutrition (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion, cc-by-nc-nd)
  • Data Archiving and Networked Services (DANS) (submittedVersion, cc-by-nc-nd)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Hydrolysis and Bioactive Peptides
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Food and Agricultural Sciences
Keywords
milk protein digestion, dairy processing, heat treatment (food and biological processing), protein denaturation, glycation, amino acid bioavailability, lysine, protein oxidation, protein cross-linking, β-lactoglobulin, gastric emptying, protein quality
MeSH terms
Amino Acids, Animals, Digestion, Hot Temperature, Heating, Humans, Milk, Milk Proteins, Protein Denaturation, Pasteurization

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