Comparative Study of Milk Coagulation with Chicken Pepsin or Rennet: Interactions, Rheology and Microstructure

Autor: Ouarda Aissaoui-Zitoun, Abdellah Zikiou, Attia Hamadi, Faiza Adoui, Halima Boughellout, Mohamed Nasser Eddine Zidoune, El Hocine Siar, Ferial Aziza Benyahia-Krid, Amani Harkati
Rok vydání: 2016
Předmět:
Zdroj: Journal of Veterinary Science & Technology. 7
ISSN: 2157-7579
DOI: 10.4172/2157-7579.1000375
Popis: The internal bonds created in milk gelation with chicken pepsin were approached by the use of dissociating agents-sodium dodecyl sulfate (SDS), urea, ethylenediamine tetraacetic acid (EDTA) and compared to those with rennet gel. Gels viscoelasticity aspects and microstructure were studied using rheological dynamic non-destructive measurements and Scanning Electron Microscopy (SEM) respectively. Results showed that no significant differences (p>0.05) in protein interactions between the two types of gel, with hydrophobic binding dominance in protein gelation. Viscoelasticity and microstructure also showed a similarity in the viscoelastic properties and in milk aggregation micelles mode, obtained by chicken pepsin or rennet.
Databáze: OpenAIRE