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Combined effect of CaCl2 and high pressure processing on the solubility of chicken breast myofibrillar proteins under sodium-reduced conditions.
- Source :
-
Food Chemistry . Dec2018, Vol. 269, p236-243. 8p. - Publication Year :
- 2018
-
Abstract
- The combined effect of calcium chloride (CaCl 2 ) (20–100 mM) and high pressure processing (HPP, 200 MPa) on the solubility of myofibrillar proteins (MP) was investigated under sodium-reduced conditions (0.3 M sodium chloride). The results revealed that HPP combined with low concentrations (<40 mM) of CaCl 2 synergistically increased the solubility of MP, but an antagonistic effect occurred when a high concentration (100 mM) of CaCl 2 was present. This synergistic effect could be attributed to a mildly destabilized conformation of myosin, an increased surface hydrophobicity and the decreased total sulfhydryl group content of MP. However, CaCl 2 at 100 mM destabilized myosin to a larger extent and induced non-disulfide covalent cross-linking of S-1 subfragment in pressurized MP, thus attenuating the solubilizing effect of HPP on the myosin heavy chain, resulting in the antagonistic effect. Therefore, HPP in combination with low-level CaCl 2 (<40 mM) may improve the functional properties of sodium-reduced meat products. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CALCIUM chloride
*MYOSIN
*MEAT
*PROTEIN solubility
*CHICKEN as food
Subjects
Details
- Language :
- English
- ISSN :
- 03088146
- Volume :
- 269
- Database :
- Academic Search Index
- Journal :
- Food Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 131185282
- Full Text :
- https://doi.org/10.1016/j.foodchem.2018.06.107