Evidence map›Paper›PMID 33036372›Full record

ArticleFoods (Basel, Switzerland)2020

The Influence of Peptidases in Intestinal Brush Border Membranes on the Absorption of Oligopeptides from Whey Protein Hydrolysate: An Ex Vivo Study Using an Ussing Chamber.

Luísa Ozorio, Caroline Mellinger-Silva, Lourdes M C Cabral, Julien Jardin, Gaelle Boudry, Didier Dupont

Abstract read
In one paragraph

Article in Foods (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. The combination of dietary active dry yeast andAnimal nutrition (Zhongguo xu mu shou yi xue hui) · 2025
    Article
  5. Article
  6. Article
  7. Quantification of Peptides in Food Hydrolysate fromFoods (Basel, Switzerland) · 2025
    Article
  8. A ComprehensiveJournal of medicinal chemistry · 2024
    Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. A Shared Perspective onJournal of agricultural and food chemistry · 2023
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Antioxidant Potential of the Sweet Whey-Based BeverageAntioxidants (Basel, Switzerland) · 2022
    Article
  19. Nutrients · 2022
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Luísa OzorioInstituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21044020, Brasil.ORCID 0000-0001-6866-1591
Caroline Mellinger-SilvaEMBRAPA Agroindústria de Alimentos, Rio de Janeiro 23020470, Brasil.
Lourdes M C CabralEMBRAPA Agroindústria de Alimentos, Rio de Janeiro 23020470, Brasil.
Julien JardinScience and Technology of Milk and Eggs (STLO), INRAE, Institut Agro, 35042 Rennes, France.
Gaelle BoudryInstitut Numecan, INRAE, INSERM, University Rennes, 35590 Saint-Gilles, France.
Didier DupontScience and Technology of Milk and Eggs (STLO), INRAE, Institut Agro, 35042 Rennes, France.ORCID 0000-0001-5304-6561

Funding

Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro E-26/110.698/201
6 · The paper itself

Abstract

For many years, it was believed that only amino acids, dipeptides, and tripeptides could be absorbed and thus reach the bloodstream. Nowadays, the bioavailability of oligopeptides is also considered possible, leading to new research. This pilot study investigates the activity of brush border enzymes on undigested whey protein hydrolysate (WPH) and on simulated intestinal digested (ID) whey hydrolysate and the subsequent absorption of resultant peptides through the proximal jejunum of a 7-week old piglet setup in an Ussing chamber model. Amongst all samples taken, 884 oligopeptides were identified. The brush border peptidase activity was intense in the first 10 min of the experiment, producing several new peptides in the apical compartment. With respect to the ID substrate, 286 peptides were detected in the basolateral compartment after 120 min of enzyme activity, originating from β-lactoglobulin (60%) and β-casein (20%). Nevertheless, only 0.6 to 3.35% of any specific peptide could pass through the epithelial barrier and thus reach the basolateral compartment. This study demonstrates transepithelial jejunum absorption of whey oligopeptides in an ex vivo model. It also confirmed the proteolytic activity of brush border enzymes on these oligopeptides, giving birth to a myriad of new bioactive peptides available for absorption.

Indexed as

brush border peptidasesintestinal permeationoligopeptides absorptionUssing chamberwhey protein hydrolysate

Identifiers

PMID33036372
PMCPMC7601095

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.