Effectiveness of edible chitosan films containing essential oils on Staphylococcus aureus and Escherichia coli O157:H7 Uçucu yaǧ içeren yenilebilir kitosan filmlerinin Staphylococcus aureus ve Escherichia coli O157:H7 üzerine etkinlikleri

Torlak E., Nizamlioǧlu M.

Kafkas Universitesi Veteriner Fakultesi Dergisi, vol.17, no.SUPPL. A, 2011 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: SUPPL. A
  • Publication Date: 2011
  • Journal Name: Kafkas Universitesi Veteriner Fakultesi Dergisi
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Keywords: Antimicrobial film, Chitosan, Escherichia coli O157:H7, Essentail oil, Kashar cheese, Staphylococcus aureus
  • Istanbul Gelisim University Affiliated: No

Abstract

In this study antimicrobial efficacy of edible films prepared with chitosan solution and chitosan solutions containing essential oils against Staphylococcus aureus and Escherichia coli O157:H7 were evaluated on kashar cheese. Oregano and clove oils were added to edible film solutions at 0.5% and 1%. Kashar cheese samples were contaminated with S. aureus and E. coli O157:H7 at 5 Log cfu/g. Artificially contaminated cheese samples were wrapped with prepared films and stored at 4 °C for 14 days. Antimicrobial effectiveness of films against S. aureus and E. coli O157:H7 were evaluated by counts performed on 1, 7 and 14 days of storage period. At the end of storage period antimicrobial effectiveness of all film types against both pathogens were determined as significant (P<0.05). Applications of edible films to samples were resulted 0.90 to 2.66 Log reduction in count of S. aureus and 0.75 to 2.32 Log reduction in count of E. coli O157:H7 compared to control samples.