1. The rheological property, antimicrobial stability and release evaluation of soya protein isolate/alginate-based films incorporated with thymol
- Author
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Baokun Zhu, Pan Hongyang, Tougen Liao, Zhenyu Jin, and Mingfeng Wang
- Subjects
Nanocomposite ,Chromatography ,Protein isolate ,04 agricultural and veterinary sciences ,Antimicrobial ,040401 food science ,Industrial and Manufacturing Engineering ,chemistry.chemical_compound ,0404 agricultural biotechnology ,Montmorillonite ,chemistry ,Rheology ,mental disorders ,Thermal stability ,Relative humidity ,Thymol ,Food Science ,Nuclear chemistry - Abstract
Summary Soya protein isolate (SPI)/alginate (ALG)/montmorillonite (MMT)/thymol (THY) nanocomposite films were prepared with a codrying process to enhance the antimicrobial stability. The results showed higher gelation point temperature and more stable gelling network were obtained by the addition of MMT. Better thermal stability and sustained release effect was found in the coblended film containing MMT, in which THY release rate at 25 °C decreased with increasing MMT concentration but increased with temperature at a constant relative humidity. The SPI/ALG/THY, SPI/ALG/THY-CO and SPI/ALG/THY-CO-0.6 (MMT content = 0.6 g g−1 SPI) films effectively inhibited the growth of Escherichia coli by 0.95, 0.91 and 0.70 log cfu mL−1 and of Staphylococcus aureus by 0.94, 0.89 and 0.73 log cfu mL−1, respectively, on the surface of raw sausage, compared to the control film.
- Published
- 2016
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