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98051

MICROBIOLOGICAL EVALUATION OF READY-TO-EAT SALADS FROM RESTAURANTS IN ZAGAZIG CITY

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Last updated: 24 Dec 2024

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Abstract

The increased consumption of ready-to-eat salads outside homes as a result of a fast paced lifestyle, awareness on their nutritional attributes and enhanced processing technology is well documented. This study was aimed to determine the microbiological quality of two types of ready-to-eat salads (RTE) which were collected from three categories of restaurants i.e., tourist restaurants (TR), local restaurants (LR) and food vehicle (FV) in Zagazig City, Sharkia Governorate, Egypt. Total of 60 samples representing: 24 Coleslaw salad samples (twelve in summer and twelve in winter) were collected from (TR) and (LR), and 36vegetable salad samples (eighteen in summer and eighteen in winter) were collected from (TR), (LR) and (FV). These samples were used for detection and enumeration of Escherichia coli 0157 : H7, Salmonella spp., Shigella spp., Coliforms group,total count of bacteria and total count of yeast and moulds, using standard methods. Homogenized salad samples were incubated in selective enrichment broths to allow the concurrent growth pathogens. The tested microorganisms varied widely between samples for different types of restaurants and seasons. Salmonella spp. was found in twelve of eighteen vegetable salad samples in summer and four of eighteen samples in winter. Shigella spp. was found in fifteen of eighteen vegetable salad samples in summer and twelve of eighteen samples in winter. Escherichia coli 0157 : H7 was found in fourteen of eighteen vegetable salad samples in summer and ten of eighteen samples in winter. Shigella spp. was found in five of twelve coleslaw salad samples in summer and three of twelve samples in winter, and Escherichia coli 0157:H7 was found in five of twelve coleslaw salad samples in summer and four of twelve samples from twelve in winter. The average microbial counts (log10 cfu/g) of coliforms group in vegetable salads ranged from 5.08 to 6.47 in summer, and from 4.71 to 6.45 in winter. Total count of bacteria ranged from 5.20 to 6.46 in summer, and from 3.98 to 5.84 in winter. Total count of yeast and moulds ranged from 2.95 to 5.24 in summer and from 3.58 to 5.13 in winter season. According to the Egyptian standard specifications for foods, these samples are unacceptable from the standpoint of microbiological safety; therefore, these data indicate that food handlers may contribute to pathogens contamination and that there are some handling practices that require more attention.

DOI

10.21608/zjar.2016.98051

Keywords

Vegetable salad, coleslaw salad, Microbiological quality, restaurant, season

Authors

First Name

Alshimaa

Last Name

Orabi

MiddleName

H.

Affiliation

Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

loay-sh20105@yahoo.com

City

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Orcid

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First Name

M.

Last Name

Ragab

MiddleName

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Affiliation

Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

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City

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Orcid

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First Name

Somaya

Last Name

Abd Elmenem

MiddleName

M.

Affiliation

Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

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City

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Orcid

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First Name

Gehan

Last Name

El-Shourbagy

MiddleName

A.

Affiliation

Food Sci. Dept., Fac. Agric., Zagazig Univ., Egypt

Email

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City

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Orcid

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Volume

43

Article Issue

6

Related Issue

9895

Issue Date

2016-11-01

Receive Date

2016-10-25

Publish Date

2016-11-01

Page Start

2,473

Page End

2,485

Print ISSN

1110-0338

Online ISSN

3009-7193

Link

https://zjar.journals.ekb.eg/article_98051.html

Detail API

https://zjar.journals.ekb.eg/service?article_code=98051

Order

42

Type

Original Article

Type Code

842

Publication Type

Journal

Publication Title

Zagazig Journal of Agricultural Research

Publication Link

https://zjar.journals.ekb.eg/

MainTitle

MICROBIOLOGICAL EVALUATION OF READY-TO-EAT SALADS FROM RESTAURANTS IN ZAGAZIG CITY

Details

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Article

Created At

24 Dec 2024