Milk Waste Peptide Found to Be 5× More Potent Than Blood Pressure Drug Captopril
Bioactive peptides from dairy wastewater hydrolysates showed potent blood pressure-lowering and antidiabetic activity, with peptide LRF inhibiting ACE five times more effectively than captopril on a molar basis.
Quick Facts
What This Study Found
The tripeptide LRF showed ACE inhibitory potency five times greater than captopril (IC50 11.34 μM vs 63.06 μM), while several other peptides demonstrated dual ACE and DPP-IV inhibition with micromolar IC50 values.
Key Numbers
How They Did This
Enzymatic hydrolysis with four enzymes (up to 240 min), LC-MS/MS peptidomics, PLS-DA multivariate statistics, QSAR machine learning scoring, followed by synthesis and experimental validation of 20 selected peptides.
Why This Research Matters
Finding drug-like peptides in industrial waste transforms a pollution problem into a health resource. These multifunctional peptides could lead to natural alternatives or supplements for managing blood pressure and diabetes.
The Bigger Picture
This study demonstrates how combining peptidomics with machine learning can rapidly discover bioactive peptides from undervalued sources. The approach could be applied to other food processing waste streams to find health-promoting peptides.
What This Study Doesn't Tell Us
In vitro activity only; oral bioavailability and in vivo efficacy not tested. Peptides may be degraded during digestion. Dairy wastewater composition varies by facility, affecting reproducibility. Regulatory pathway for waste-derived bioactive peptides is unclear.
Questions This Raises
- ?Can LRF and other potent peptides survive gastrointestinal digestion to exert effects orally?
- ?Would these peptides be effective in animal models of hypertension or diabetes?
- ?Could dairy wastewater processing be optimized to maximize production of the most bioactive peptides?
Trust & Context
- Key Stat:
- 5× more potent Tripeptide LRF inhibited ACE (blood pressure enzyme) five times more effectively than the drug captopril
- Evidence Grade:
- Well-designed discovery study combining advanced peptidomics, machine learning, and experimental validation. Strong in vitro evidence needing in vivo confirmation.
- Study Age:
- Published in 2025, showcasing state-of-the-art machine learning-assisted peptide discovery.
- Original Title:
- Identification of antihypertensive, antidiabetic, and antioxidant peptides derived from hydrolysates of dairy white wastewaters containing milk proteins using machine learning insights.
- Published In:
- Food research international (Ottawa, Ont.), 229, 118496 (2026)
- Authors:
- Damen, Diala, Aboubacar, Hairati(2), Cournoyer, Aurore, Bazinet, Mathieu, de Toro-Martín, Juan, Gaaloul, Sami, Hamoudi, Safia, Cudennec, Benoit, Bazinet, Laurent
- Database ID:
- RPEP-15073
Evidence Hierarchy
Frequently Asked Questions
How can dairy waste contain medicines?
Milk proteins contain encrypted sequences of smaller peptides that become active when the proteins are broken down by enzymes. These peptides can interact with enzymes in the body that control blood pressure and blood sugar.
Could I get these benefits from drinking milk?
These specific peptides are released by industrial enzyme treatment, not normal digestion. However, fermented dairy products like yogurt and cheese do contain some bioactive peptides produced during bacterial fermentation.
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Cite This Study
https://rethinkpeptides.com/research/RPEP-15073APA
Damen, Diala; Aboubacar, Hairati; Cournoyer, Aurore; Bazinet, Mathieu; de Toro-Martín, Juan; Gaaloul, Sami; Hamoudi, Safia; Cudennec, Benoit; Bazinet, Laurent. (2026). Identification of antihypertensive, antidiabetic, and antioxidant peptides derived from hydrolysates of dairy white wastewaters containing milk proteins using machine learning insights.. Food research international (Ottawa, Ont.), 229, 118496. https://doi.org/10.1016/j.foodres.2026.118496
MLA
Damen, Diala, et al. "Identification of antihypertensive, antidiabetic, and antioxidant peptides derived from hydrolysates of dairy white wastewaters containing milk proteins using machine learning insights.." Food research international (Ottawa, 2026. https://doi.org/10.1016/j.foodres.2026.118496
RethinkPeptides
RethinkPeptides Research Database. "Identification of antihypertensive, antidiabetic, and antiox..." RPEP-15073. Retrieved from https://rethinkpeptides.com/research/damen-2026-identification-of-antihypertensive-antidiabetic
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.