Properties of Bovine Collagen as Influenced by High-Pressure Processing

0573237 - ÚSMH 2024 RIV CH eng J - Journal Article
Houška, M. - Landfeld, A. - Novotná, P. - Strohalm, J. - Šupová, Monika - Suchý, Tomáš - Chlup, H. - Skočilas, J. - Štípek, J. - Žaloudková, Margit - Šulc, M.
Properties of Bovine Collagen as Influenced by High-Pressure Processing.
Polymers. Roč. 15, č. 11 (2023), č. článku 2472. E-ISSN 2073-4360
R&D Projects: GA ČR(CZ) GA21-07851S
Institutional support: RVO:67985891
Keywords : bovine collagen * high-pressure processing * physical properties * structure properties
OECD category: Thermodynamics
Impact factor: 5, year: 2022
Method of publishing: Open access
https://doi.org/10.3390/polym15112472

The physical properties and structure of collagen treated with high-pressure technologies
have not yet been investigated in detail. The main goal of this work was to determine whether this
modern gentle technology significantly changes the properties of collagen. High pressure in the
range of 0–400 MPa was used, and the rheological, mechanical, thermal, and structural properties of
collagen were measured. The rheological properties measured in the area of linear viscoelasticity
do not statistically significantly change due to the influence of pressure or the duration of pressure
exposure. In addition, the mechanical properties measured by compression between two plates
are not statistically significantly influenced by pressure value or pressure hold time. The thermal
properties Ton and DH measured by differential calorimetry depend on pressure value and pressure
hold time. Results from amino acids and FTIR analyses show that exposure of collagenous gels to
high pressure (400 MPa), regardless of applied time (5 and 10 min), caused only minor changes in the
primary and secondary structure and preserved collagenous polymeric integrity. SEM analysis did
not show changes in collagen fibril ordering orientation over longer distances after applying 400 MPa
of pressure for 10 min.

Permanent Link: https://hdl.handle.net/11104/0343962