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204813

IMPROVING THE HYGIENIC AND CHEMICAL QUALITY OF SILVER CARP FISH USING COMBINED LOW SALT AND IRRADIATION TREATMENTS

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Last updated: 22 Jan 2023

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Abstract

The present study was conducted to evaluated the combined effect of low dose gamma irradiation (1,2,3 and 5 kGy) and/or salting (10% salt solution) on chemical, microbiological and sensory properties of silver carp fish during cold storage at 4 ºC ±1. At periodic intervals, quality of silver carp fish was determined by sensory evaluation (appearance, odor and texture); chemical composition (moisture; protein; fat and ash); freshness index (total volatile bases nitrogen (TVBN); trimethylamine (TMA); thiobarbituric acid (TBA) and pH) and microbiological parameters (total bacterial count (TBC); psychrophilic bacteria; enterobacteriaceae and mold and yeast counts. The control sample of silver carp fish was acceptable up to 6 days, in comparison to a storage shelf life of 18, 24; 27 and 30 days for the unsalted fish irradiated at 1,2,3, and 5 kGy, respectively. Salting (brine solution 10%) prior to gamma irradiation at 0,1,2,3 and 5 kGy give a shelf life of 12, 18, 24, 27 and 30 days, respectively. Salting give a firmer texture to the silver carp fish during cold storage. It could be concluded that irradiation at 3 kGy can improve the hygienic quality of silver carp fish and enhance shelf life. Dipping in salt solution (10% NaCl) prior to irradiation did not have any additional advantage in the shelf life extension of fish by irradiation, other benefits were noted such as: enhanced irradiation–induced elimination of the evaluated microorganisms; improved fish texture during cold storage.     

DOI

10.21608/jfds.2007.204813

Authors

First Name

El.

Last Name

Afifi

MiddleName

A.

Affiliation

Nuclear Research Center, Atomic Energy Authority, Egypt.

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First Name

H.

Last Name

Shawki

MiddleName

A.

Affiliation

Nuclear Research Center, Atomic Energy Authority, Egypt.

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City

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Orcid

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First Name

Amira

Last Name

El-Hanafy

MiddleName

E. A.

Affiliation

Central Lab. for Aquaculture Research, Agric. Research Center, Egypt

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Volume

32

Article Issue

12

Related Issue

28859

Issue Date

2007-12-01

Receive Date

2021-11-15

Publish Date

2007-12-01

Page Start

10,193

Page End

10,208

Print ISSN

2090-3650

Online ISSN

2090-3731

Link

https://jfds.journals.ekb.eg/article_204813.html

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https://jfds.journals.ekb.eg/service?article_code=204813

Order

6

Type

Original Article

Type Code

886

Publication Type

Journal

Publication Title

Journal of Food and Dairy Sciences

Publication Link

https://jfds.journals.ekb.eg/

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Article

Created At

22 Jan 2023