Proteomic and N-glycomic comparison of synthetic and bovine whey proteins and their effect on human gut microbiomes in vitro     
Yazarlar (9)
Matthew Bolino
University Of Nevada, Reno, Amerika Birleşik Devletleri
Hatice Duman
Çanakkale Onsekiz Mart Üniversitesi, Türkiye
Izzet Avci
Hacettepe Üniversitesi, Türkiye
Doç. Dr. Hacı Mehmet KAYILI Karabük Üniversitesi, Türkiye
Juli Petereit
University Of Nevada, Reno, Amerika Birleşik Devletleri
Chandler Zundel
University Of Nevada, Reno, Amerika Birleşik Devletleri
Bekir Salih
Hacettepe Üniversitesi, Türkiye
Sercan Karav
Çanakkale Onsekiz Mart Üniversitesi, Türkiye
Steven A. Frese
University Of Nevada, Reno, Amerika Birleşik Devletleri
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Microbiology Spectrum
Dergi ISSN 2165-0497 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili Türkçe
Basım Tarihi 08-2025
Cilt No 13
Sayı 8
DOI Numarası 10.1128/spectrum.00200-25
Makale Linki https://doi.org/10.1128/spectrum.00200-25
Özet
Advances in food production systems and customer acceptance have led to the commercial launch of dietary proteins produced via modern biotechnological approaches as alternatives to traditional agricultural sources. At the same time, a deeper understanding of how dietary components interact with the gut microbiome has highlighted the importance of understanding the nuances underpinning diet-microbiome interactions. Novel food proteins with distinct post-translational modifications resulting from their respective production systems have not been characterized, nor how they may differ from their traditionally produced counterparts. Here, we have characterized the protein composition and -glycome of a yeast-synthesized and commercially available whey protein ingredient and compared this novel ingredient to whey protein isolate powder derived from bovine milk. Despite strong similarities in protein composition, we found that the -glycome significantly differs between the two protein sources, reflecting the biosynthetic machinery of the production systems. Furthermore, the diversity of proteins found in yeast-synthesized whey protein were lower relative to bovine whey protein, despite both being predominantly β-lactoglobulin. Finally, to understand whether these differences in glycome profiles may affect the human gut microbiome, we compared these proteins in an fecal fermentation model. The two whey protein sources generated significant differences among three representative gut microbiomes , most likely due to differences in -glycan composition and degradation by these representative microbial communities. This work highlights the need to understand how differences in novel biotechnological systems affect the bioactivity of synthesized proteins and how these differences impact the human gut microbiome. Recent advances in food technology have led to the production of animal-free products from yeast that are traditionally derived from animals, such as milk proteins. These new processes raise important questions about the use of synthetic proteins as a replacement for traditionally sourced protein, especially in the context of the gut microbiome. Importantly, yeast produce -glycans comprised primarily of mannose, while animals synthesize structurally and compositionally complex -glycan structures. Given these differences, we characterized a new, yeast-derived whey protein ingredient and compared it to bovine whey protein. We found that yeast-derived whey protein differs in its impact on human gut microbiomes because of differences in -glycan structures, despite similarity in protein composition. These findings raise important questions as to whether these differences in synthetic proteins lead to significant changes to the gut microbiome , and whether this may impact the utility of these novel ingredients.
Anahtar Kelimeler
gut microbiome | fiber | N-glycan | whey | protein glycosylation