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176653

EFFECT OF LACTOBACILLUS ACIDOPHILUS ON SHELF-LIFE OF LOW SALT SOFT CHEESE

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Last updated: 23 Jan 2023

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Abstract

Lactobacillus acidophilus is one of the most commonly used probiotics. This study aimed to produce low salt (3% Nacl) soft cheese with acceptable organoleptic characters and prolonged shelf-life using Lb.acidophilus (1 and 3%) as bio preservative. The obtained cheese (control, 1%Lb. and 3%Lb.) were kept in refrigerator, sampled fresh (zero time) and at 3days intervals till signs of spoilage were detected. Samples were examined organoleptically, chemically and microbiologically. Results showed that 3% Lb. cheese was superior to 1%Lb. and control cheese when fresh with an average organoleptic overall score of 95.96, 94.04 and 90.82, respectively. pH values at zero time for control, 1% Lb. and 3% Lb. cheese were 6.42, 6.33 and 6.17 then decreased at the end of shelf life (at 15th, 18th and 24th day)to 5.89, 5.65 and 5.43, respectively. Average coliforms count (MPN/g) was 3.6x101, 1.1x101 and 0.93x101 at zero time then reached 7.5x104, 0.93x101 and 2.3x101 at the end of shelf life for control, 1% Lb. and 3% Lb. cheese, respectively. While, E.coli was absent from all examined low salt soft cheese throughout the entire period.On storage, Lb.acidophilus was -sharply increased in their numbers-1.34x108 and 2.18x109 cfu/g for 1% Lb. (at the 18th day) and 3% Lb. cheese (at the 24th day). Effect of Lb. acidophilus strain on mould and yeast count were highly significant (P<0.01). In conclusion, low salt soft cheese with 3% Lb.acidophilus culture had better organoleptic score, microbiological quality and prolonged shelf-life than control and 1% Lb cheese.

DOI

10.21608/avmj.2011.176653

Keywords

Key words: Lactobacillus acidophilus, low salt, Soft cheese, shelf-life

Authors

First Name

AZZA

Last Name

M.K. SOBEIH

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Affiliation

Dept. of Food Hygiene, Fac. of Vet. Med. Kafrelsheikh Univ., Egypt.

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First Name

EKBAL

Last Name

M.A. IBRAHIM

MiddleName

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Affiliation

Dept. of Food Control, Fac. of Vet. Med. Benha Univ., Egypt

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Orcid

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First Name

HEND

Last Name

A. ELBARBARY

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Affiliation

Dept. of Food Control, Fac. of Vet. Med. Benha Univ., Egypt.

Email

hendbarbary2002@yahoo.com

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Volume

57

Article Issue

130

Related Issue

24338

Issue Date

2011-07-01

Receive Date

2011-03-19

Publish Date

2011-07-01

Page Start

1

Page End

15

Print ISSN

1012-5973

Online ISSN

2314-5226

Link

https://avmj.journals.ekb.eg/article_176653.html

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https://avmj.journals.ekb.eg/service?article_code=176653

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3

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