Project Details
Description
The formation of bitter peptides from, for example, wheat proteins or milk casein reduces consumer acceptance and, in addition to limitations in the sustainability of food production, leads to financial losses for producers. Due to the enormous complexity of food peptides as a whole, it is currently impossible to reliably predict the formation of bitter peptides in food production. The bitter taste of peptides is mediated by 5 of the 25 human bitter taste receptors (TAS2R). The aim of this project is to decipher the molecular coding of bitter peptides and thus make it predictable. By integrating various approaches such as machine learning, functional receptor studies, and proteome analyses coupled with sensory investigations, we will investigate the molecular recognition of peptides by bitter taste receptors and elucidate the molecular signatures that carry bitter information in peptide sequences. This will enable us to develop an effective and application-oriented method for identifying bitter peptides in food.
Funder
DFG
Funding programme
Sachbeihilfe
| Title | Development of a method for predicting bitter peptides in food proteins |
|---|---|
| Status | Finished |
| Effective start/end date | 1/01/22 → 31/12/24 |
Collaborative partners
- Technical University of Munich (Project partner / Beneficiary)
- Leibniz Institute for Food Systems Biology at the Technical University of Munich (lead)
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Research output
- 3 Article
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Exploring the Molecular Space of Bitter Peptides via Sensory, Receptor, and Sequence Data
Steuer, A. (Shared First Author), Eckrich, L. S. (Shared First Author), Schaefer, S. (Co-Author), Mittermeier-Kleßinger, V. K. (Co-Author), Otterbach, A. (Co-Author), Behrens, M. (Co-Author), Dawid, C. (Shared Last Author) & Di Pizio, A. (Shared Last Author), 6 Aug 2025, In: Journal of Agricultural and Food Chemistry. 73, 31, p. 19642-19651 10 p.Research output: Contribution to journal › Article › peer-review
Open Access4 Scopus citations -
Membrane-bound chemoreception of bitter bile acids and peptides is mediated by the same subset of bitter taste receptors
Schaefer, S. (First Author), Ziegler, F. (Co-Author), Lang, T. (Co-Author), Steuer, A. (Co-Author), Di Pizio, A. (Co-Author) & Behrens, M. (Last Author), Dec 2024, In: Cellular and Molecular Life Sciences. 81, 1, 217.Research output: Contribution to journal › Article › peer-review
Open Access16 Scopus citations -
Activation Spectra of Human Bitter Taste Receptors Stimulated with Cyclolinopeptides Corresponding to Fresh and Aged Linseed Oil
Lang, T. (First Author), Frank, O. (Co-Author), Lang, R. (Co-Author), Hofmann, T. (Co-Author) & Behrens, M. (Last Author), 13 Apr 2022, In: Journal of Agricultural and Food Chemistry. 70, 14, p. 4382-4390 9 p.Research output: Contribution to journal › Article › peer-review
Open Access28 Scopus citations
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Functional identification of the molecular features of peptides leading to human bitter taste receptor activation
Schäfer, S. (Speaker)
8 Dec 2025Activity: Talk or event contribution › Oral presentation
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Why some peptides taste bitter? A GPCR-centered journey through taste biology
Schäfer, S. (Speaker)
4 Dec 2025Activity: Talk or event contribution › Invited talk
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The length and composition of bitter peptides affect their ability to activate TAS2Rs
Schäfer, S. (Speaker)
3 Jul 2025Activity: Talk or event contribution › Oral presentation