Back to Search
Start Over
Inhibition of the liquefaction of alkali-induced egg white gel by sodium ascorbate
- Source :
- Food chemistry. 381
- Publication Year :
- 2021
-
Abstract
- Effects of sodium ascorbate (1%, 2%, 3%) on the liquefaction of alkali-induced egg white gel (EWG) were investigated. Results showed hardness and water holding capacity (WHC) gradually decreased at 1%. However, hardness and WHC declined and then rose at 2% and 3%. Microstructural changes further confirmed the effects of sodium ascorbate on hardness and WHC. Electrophoresis showed sodium ascorbate caused the cross-linking between proteins, which was more resistant to degradation. Fourier transform infrared spectroscopy (FTIR) and surface hydrophobicity indicated sodium ascorbate significantly changed protein structure, especially at 2% and 3% resulted in protein reaggregation, increasing β-sheet, and decreasing surface hydrophobicity in the later stage. In general, sodium ascorbate didn't inhibit the liquefaction of alkali-induced EWG at 1%, but did effectively at 2% and 3%. Therefore, high concentrations of sodium ascorbate possess the potential to inhibit the "alkali injury liquefaction" of preserved egg whites without heavy metals.
Details
- ISSN :
- 18737072
- Volume :
- 381
- Database :
- OpenAIRE
- Journal :
- Food chemistry
- Accession number :
- edsair.doi.dedup.....6ed76adb643ede95b0e84b2fb6036acb