Unravelling the dominant role of phosphorylation degree in governing the functionality of reassembled casein micelles: Implications for future dairy production through precision fermentation
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| Názov: | Unravelling the dominant role of phosphorylation degree in governing the functionality of reassembled casein micelles: Implications for future dairy production through precision fermentation |
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| Autori: | Che, Jing, Fan, Zekun, Bijl, Etske, Thomsen, Julia Prangchat Stub, Mijakovic, Ivan, 1975, Hettinga, Kasper, Poulsen, Nina Aagaard, Larsen, Lotte Bach |
| Zdroj: | Är Bacillus subtilis PtkA reglerad som ett "cyclin-dependant" kinas? Food Hydrocolloids. 159 |
| Predmety: | Acid-induced gelation, TEM, Calcium-binding ability, Reassembled casein micelles, Dephosphorylation |
| Popis: | This study investigated the effect of bovine casein (CN) phosphorylation degree on micelle reassembly, stability, calcium-binding, and acid-induced gelation or precipitation, with the aim of assessing the feasibility of utilising microbial CNs in future dairy production. The four CNs (αS1-, αS2-, β-, and κ-CN) were purified from bovine milk and subjected to enzymatic dephosphorylation, resulting in three pools – fully and partially phosphorylated and fully dephosphorylated. Nine reassembled CN micelle solutions (RCMS) were investigated, consisting of three systems (two of four-CN, and one of β/κ-CN) and three phosphorylation degrees of the corresponding CNs. The distribution of different components (protein, calcium, and phosphorus) into micellar, serum, and insoluble fractions after two centrifugation steps was studied. The pH stability relative to acid-gelation or precipitation of the formed RCMS was further investigated. Results showed that the micelle reassembly ability of RCMS containing all four CNs was proportional to the phosphorylation degree; CNs with higher phosphorylation degrees contained a higher proportion of micelles and exhibited greater calcium-binding ability, whereas fully dephosphorylated CNs hardly formed CN micelle structures. The gelation pH of RCMS increased with decreasing phosphorylation degree, whereas the fully dephosphorylated CNs completely failed in gelation but precipitated when reaching their isoelectric point at pH 5.5. Moreover, RCMS containing only β/κ-CN at their native full phosphorylation were unstable at the salt concentrations applied, with more than half of the CNs self-associating to flocculate. Our study confirms the essential role of phosphorylation degree in micelle reassembly and stability, providing important information for potential future applications of microbial CNs that are expected to exhibit non-native phosphorylation levels. |
| Popis súboru: | electronic |
| Prístupová URL adresa: | https://research.chalmers.se/publication/542841 https://research.chalmers.se/publication/542841/file/542841_Fulltext.pdf |
| Databáza: | SwePub |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://research.chalmers.se/publication/542841# Name: EDS - SwePub (s4221598) Category: fullText Text: View record in SwePub – Url: https://resolver.ebscohost.com/openurl?sid=EBSCO:edsswe&genre=article&issn=0268005X&ISBN=&volume=159&issue=&date=20250101&spage=&pages=&title=Är Bacillus subtilis PtkA reglerad som ett "cyclin-dependant" kinas? Food Hydrocolloids&atitle=Unravelling%20the%20dominant%20role%20of%20phosphorylation%20degree%20in%20governing%20the%20functionality%20of%20reassembled%20casein%20micelles%3A%20Implications%20for%20future%20dairy%20production%20through%20precision%20fermentation&aulast=Che%2C%20Jing&id=DOI:10.1016/j.foodhyd.2024.110615 Name: Full Text Finder Category: fullText Text: Full Text Finder Icon: https://imageserver.ebscohost.com/branding/images/FTF.gif MouseOverText: Full Text Finder – Url: https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=EBSCO&SrcAuth=EBSCO&DestApp=WOS&ServiceName=TransferToWoS&DestLinkType=GeneralSearchSummary&Func=Links&author=Che%20J Name: ISI Category: fullText Text: Nájsť tento článok vo Web of Science Icon: https://imagesrvr.epnet.com/ls/20docs.gif MouseOverText: Nájsť tento článok vo Web of Science |
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| Header | DbId: edsswe DbLabel: SwePub An: edsswe.oai.research.chalmers.se.8c8cf127.11da.4184.b047.863642a23cde RelevancyScore: 1065 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 1064.736328125 |
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| Items | – Name: Title Label: Title Group: Ti Data: Unravelling the dominant role of phosphorylation degree in governing the functionality of reassembled casein micelles: Implications for future dairy production through precision fermentation – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Che%2C+Jing%22">Che, Jing</searchLink><br /><searchLink fieldCode="AR" term="%22Fan%2C+Zekun%22">Fan, Zekun</searchLink><br /><searchLink fieldCode="AR" term="%22Bijl%2C+Etske%22">Bijl, Etske</searchLink><br /><searchLink fieldCode="AR" term="%22Thomsen%2C+Julia+Prangchat+Stub%22">Thomsen, Julia Prangchat Stub</searchLink><br /><searchLink fieldCode="AR" term="%22Mijakovic%2C+Ivan%22">Mijakovic, Ivan</searchLink>, 1975<br /><searchLink fieldCode="AR" term="%22Hettinga%2C+Kasper%22">Hettinga, Kasper</searchLink><br /><searchLink fieldCode="AR" term="%22Poulsen%2C+Nina+Aagaard%22">Poulsen, Nina Aagaard</searchLink><br /><searchLink fieldCode="AR" term="%22Larsen%2C+Lotte+Bach%22">Larsen, Lotte Bach</searchLink> – Name: TitleSource Label: Source Group: Src Data: <i>Är Bacillus subtilis PtkA reglerad som ett "cyclin-dependant" kinas? Food Hydrocolloids</i>. 159 – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Acid-induced+gelation%22">Acid-induced gelation</searchLink><br /><searchLink fieldCode="DE" term="%22TEM%22">TEM</searchLink><br /><searchLink fieldCode="DE" term="%22Calcium-binding+ability%22">Calcium-binding ability</searchLink><br /><searchLink fieldCode="DE" term="%22Reassembled+casein+micelles%22">Reassembled casein micelles</searchLink><br /><searchLink fieldCode="DE" term="%22Dephosphorylation%22">Dephosphorylation</searchLink> – Name: Abstract Label: Description Group: Ab Data: This study investigated the effect of bovine casein (CN) phosphorylation degree on micelle reassembly, stability, calcium-binding, and acid-induced gelation or precipitation, with the aim of assessing the feasibility of utilising microbial CNs in future dairy production. The four CNs (αS1-, αS2-, β-, and κ-CN) were purified from bovine milk and subjected to enzymatic dephosphorylation, resulting in three pools – fully and partially phosphorylated and fully dephosphorylated. Nine reassembled CN micelle solutions (RCMS) were investigated, consisting of three systems (two of four-CN, and one of β/κ-CN) and three phosphorylation degrees of the corresponding CNs. The distribution of different components (protein, calcium, and phosphorus) into micellar, serum, and insoluble fractions after two centrifugation steps was studied. The pH stability relative to acid-gelation or precipitation of the formed RCMS was further investigated. Results showed that the micelle reassembly ability of RCMS containing all four CNs was proportional to the phosphorylation degree; CNs with higher phosphorylation degrees contained a higher proportion of micelles and exhibited greater calcium-binding ability, whereas fully dephosphorylated CNs hardly formed CN micelle structures. The gelation pH of RCMS increased with decreasing phosphorylation degree, whereas the fully dephosphorylated CNs completely failed in gelation but precipitated when reaching their isoelectric point at pH 5.5. Moreover, RCMS containing only β/κ-CN at their native full phosphorylation were unstable at the salt concentrations applied, with more than half of the CNs self-associating to flocculate. Our study confirms the essential role of phosphorylation degree in micelle reassembly and stability, providing important information for potential future applications of microbial CNs that are expected to exhibit non-native phosphorylation levels. – Name: Format Label: File Description Group: SrcInfo Data: electronic – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="https://research.chalmers.se/publication/542841" linkWindow="_blank">https://research.chalmers.se/publication/542841</link><br /><link linkTarget="URL" linkTerm="https://research.chalmers.se/publication/542841/file/542841_Fulltext.pdf" linkWindow="_blank">https://research.chalmers.se/publication/542841/file/542841_Fulltext.pdf</link> |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.foodhyd.2024.110615 Languages: – Text: English Subjects: – SubjectFull: Acid-induced gelation Type: general – SubjectFull: TEM Type: general – SubjectFull: Calcium-binding ability Type: general – SubjectFull: Reassembled casein micelles Type: general – SubjectFull: Dephosphorylation Type: general Titles: – TitleFull: Unravelling the dominant role of phosphorylation degree in governing the functionality of reassembled casein micelles: Implications for future dairy production through precision fermentation Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Che, Jing – PersonEntity: Name: NameFull: Fan, Zekun – PersonEntity: Name: NameFull: Bijl, Etske – PersonEntity: Name: NameFull: Thomsen, Julia Prangchat Stub – PersonEntity: Name: NameFull: Mijakovic, Ivan – PersonEntity: Name: NameFull: Hettinga, Kasper – PersonEntity: Name: NameFull: Poulsen, Nina Aagaard – PersonEntity: Name: NameFull: Larsen, Lotte Bach IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 0268005X – Type: issn-locals Value: SWEPUB_FREE – Type: issn-locals Value: CTH_SWEPUB Numbering: – Type: volume Value: 159 Titles: – TitleFull: Är Bacillus subtilis PtkA reglerad som ett "cyclin-dependant" kinas? Food Hydrocolloids Type: main |
| ResultId | 1 |
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