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105941

EFFECT OF MICROWAVE AND SOME TREATMENTS ON MICROBIAL INACTIVATION RATE OF MILK

Article

Last updated: 26 Dec 2024

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Biosystems Engineering

Abstract

The aim of the present work is to study the effect of three different microwave power levels of 285, 385 and 470 W and alternating mixed treatments (20 seconds in microwave and 20 seconds sudden cooling) repeated one, two and three times on the total microbial counts (CFU/g) of milk . It was found that as the microwave power increases the total microbial counts decreases from 3.6x1010 to 2.4x104 CFU/g. Insignificant differences were found between 385 and 470 W for the pure microwave treatments. The decimal reduction time were 10.36 s, 7.87 and 7.49 s for the three power levels respectively. For the mixed alternating treatments the power level of 470 gives the least total bacterial count of 3.3x103 CFU/g compared to 3.5x103 for the power level of 385W at 2450 MHz. The decimal reduction times were 39.23 and 38.90 s for 385 and 470 W for the three times treatments respectively. Semi-logarithmic models were satisfied for the pure microwave and alternating mixed treatments with coefficient of determination of 0.98.

DOI

10.21608/mjae.2010.105941

Authors

First Name

T.H.

Last Name

Ghanem

MiddleName

-

Affiliation

Associate Prof., Agric. Eng.. Fac. of Agric., Al-Azhar Univ. (Cairo), Egypt.

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City

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Orcid

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First Name

M.A.M

Last Name

Omar

MiddleName

-

Affiliation

Associate Prof., Dairy Science Dept. Faculty of Agric.,Al-Azhar Univ.(Cairo), Egypt.

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City

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Orcid

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Volume

27

Article Issue

2

Related Issue

16013

Issue Date

2010-04-01

Receive Date

2020-08-02

Publish Date

2010-04-01

Page Start

737

Page End

745

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 27_Issue 2_Pages 737-745.pdf

PDF . 428.7kB

Link

https://mjae.journals.ekb.eg/article_105941.html

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https://mjae.journals.ekb.eg/service?article_code=105941

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20

Type

Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

https://mjae.journals.ekb.eg/

MainTitle

EFFECT OF MICROWAVE AND SOME TREATMENTS ON MICROBIAL INACTIVATION RATE OF MILK

Details

Type

Article

Created At

23 Jan 2023