International Medicinal and Aromatic Plants Symposium , 2010-06-21

Title : ( Modeling the behavioral pattern of E.coli O157:H7 in mayonnaise affected by Thymus vulgaris extract as a preservative at 4°C and 25°C )

Authors: Fatemeh Zabetian Hosseini , Bibi sedigheh Fazly Bazzaz, , Sayed Ali Mortazavi , Arash Koocheki , Shadi Bolourian ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

Abstract

Due to concerns over the safety of some chemical preservatives in foods, we have done research to find safe and effective replacement. This study was to investigate the antibacterial properties of Thymus vulgaris leaves extract on home-made mayonnaise using E. coli O157:H7, as a food pathogen. Also the modeling behavior of E. coli O157H:7 in mayonnaise, affected by T. vulgaris extract at 4oC and 25oC was investigated. This test was evaluated as a completely randomized factorial design with 3 replications. For comparison, according to storage temperatures of mayonnaise, two different models were used. A reduction of E.coli O157:H7 was observed in all cases and the rate of reduction was dependant on the storage temperature and the extract concentration. Death responses as a function of time of exposure and concentration of T. vulgaris extract were described using a quadratic function which was then used to predict the death of E.coli O157:H7 in home-made mayonnaise of different compositions. Models were shown by using RSM. Coefficient of determinations (R2>0.8) implies the validity of the proposed model.

Keywords

, E.coli O157:H7, mayonnaise, modeling, T. vulgaris extract
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@inproceedings{paperid:1019648,
author = {Fatemeh Zabetian Hosseini and Bibi Sedigheh Fazly Bazzaz, and Mortazavi, Sayed Ali and Koocheki, Arash and Shadi Bolourian},
title = {Modeling the behavioral pattern of E.coli O157:H7 in mayonnaise affected by Thymus vulgaris extract as a preservative at 4°C and 25°C},
booktitle = {International Medicinal and Aromatic Plants Symposium},
year = {2010},
location = {شیراز, IRAN},
keywords = {E.coli O157:H7; mayonnaise; modeling; T. vulgaris extract},
}

[Download]

%0 Conference Proceedings
%T Modeling the behavioral pattern of E.coli O157:H7 in mayonnaise affected by Thymus vulgaris extract as a preservative at 4°C and 25°C
%A Fatemeh Zabetian Hosseini
%A Bibi Sedigheh Fazly Bazzaz,
%A Mortazavi, Sayed Ali
%A Koocheki, Arash
%A Shadi Bolourian
%J International Medicinal and Aromatic Plants Symposium
%D 2010

[Download]