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177981

A study on effect of immersion heat treatment on viability of Salmonella enteritidis in table eggs.

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Last updated: 23 Jan 2023

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Abstract

Eggs are a highly nutritious, inexpensive food commodity which is accepted by most people. The safety of eggs has become a global issue with emergence of the pathogen Salmonella enteritidis as a major health hazard associated with the consumption of raw and semi-cooked eggs. the effects of water – bath heat treatments on the inactivation of Salmonella enteritidis within eggs were evaluated. Salmonella enteritidis (107 cfu/g, inoculated near the centre of the yolk) was completely eliminated within 70 min at a bath temperature of 570C, within 55 min at a bath temperature of 580C and within 45 min at a bath temperature of 590C. No significance difference in the visual appearance between the control and immersion heated eggs meaning that heated eggs will be seen as normal eggs.In addition, effect of immersion heat treatments on the functional properties of egg white was evaluated. Evidence from the current study confirms that prolonged egg heating at 570C  for 70 min was effectively eliminate  Salmonella and produce Salmonella free eggs with an acceptable quality. There is no coagulation, or loss in functionality of egg components. Albumen turbidity and functionality were significantlyaffected by thermal treatments in eggs treated at 58 and 590C and was less affected at 570C. extended whip time would require for meringue preparation using immersion heated egg white. Immersion heattreatment could provide Salmonella enteritidis free egg for preparation of food receive little or no heat treatment prior to consumption and thereby combat the risk of salmonella.

DOI

10.21608/avmj.2007.177981

Keywords

A study on effect of immersion heat treatment on viability of Salmonella enteritidis in table eggs

Authors

First Name

ZIENAB

Last Name

I.SOLIMAN

MiddleName

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Affiliation

Animal Health Research Institute, DOKKI Port Said Laboratory for Food Hygiene

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First Name

AZZA

Last Name

A. EL-TABIY

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Affiliation

Animal Health Research Institute, DOKKI Port Said Laboratory for Food Hygiene

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Volume

53

Article Issue

115

Related Issue

24390

Issue Date

2007-10-01

Receive Date

2007-10-16

Publish Date

2007-11-01

Page Start

1

Page End

21

Print ISSN

1012-5973

Online ISSN

2314-5226

Link

https://avmj.journals.ekb.eg/article_177981.html

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https://avmj.journals.ekb.eg/service?article_code=177981

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4

Type

Research article

Type Code

1,840

Publication Type

Journal

Publication Title

Assiut Veterinary Medical Journal

Publication Link

https://avmj.journals.ekb.eg/

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Article

Created At

23 Jan 2023