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129170

IMPROVEMENT THE KEEPING QUALITY AND EXTENSION OF SHELF LIFE OF LOW SALT WHITE SOFT CHEESE USING TREATED MILK WITH NISIN

Article

Last updated: 04 Jan 2025

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Subjects

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Tags

Food Hygiene

Abstract

White soft cheese was made from reconstituted partially skim milk powder (2% fat) with two salt concentrations (2% and 4%) and then (50, 100, 200 IU/ml) nisin were added. Control groups of both salted white soft cheeses were manufactured without addition of nisin. Furthermore, the two types of white soft cheese samples were kept in their whey at refrigerator temperature (2-4°C) till signs of spoilage were observed. Periodically, the control and preserved samples were examined chemically (pH and titratable acidity) and bacteriologically (aerobic plate, psychrotrophic, coliform and aerobic sporeformer counts) to determine the influence of nisin on prolongation of their shelf life. Nisin extended the shelflife of low salt cheese (2% salt) up to 9 days at concentration 100 IU/ml and up to 11 days for 200 IU/ml, while, nisin-free cheese samples were spoiled after the 5th day of refrigeration storage. On the other hand, the shelf life of 4% salt cheese was extended up to 21 days of cold storage by addition of nisin at conc. 100 and 200 IU/ml. In contrast, the cheese samples of control group were deteriorated after the 9th day of refrigerated storage. There were significant differences (p < 0.05) between the chemical and bacteriological profiles of low salt soft cheese as a result of storage time. Actually, the nisin had a significant destructive action on contaminating coliforms and aerobic spore forming bacteria of white soft cheese and lead to increase its validity period.

DOI

10.21608/mvmj.2016.129170

Keywords

cheese, Nisin, shelf life

Authors

First Name

Hanaa

Last Name

El-Mossalami

MiddleName

-

Affiliation

Milk hygiene department, Faculty of Veterinary Medicine, Mansoura University

Email

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City

-

Orcid

-

First Name

Sherein

Last Name

Nosier

MiddleName

-

Affiliation

Milk hygiene, faculty of Veterinary Medicine, Mansoura University

Email

-

City

-

Orcid

-

First Name

Yasser

Last Name

Abdel-Hakeim

MiddleName

-

Affiliation

Milk hygiene, faculty of Veterinary Medicine, Mansoura University

Email

-

City

-

Orcid

-

Volume

17

Article Issue

2

Related Issue

19229

Issue Date

2016-06-01

Receive Date

2016-04-01

Publish Date

2016-06-01

Page Start

1

Page End

8

Print ISSN

1110-7219

Online ISSN

2682-2512

Link

https://mvmj.journals.ekb.eg/article_129170.html

Detail API

https://mvmj.journals.ekb.eg/service?article_code=129170

Order

5

Type

Original Articles

Type Code

1,268

Publication Type

Journal

Publication Title

Mansoura Veterinary Medical Journal

Publication Link

https://mvmj.journals.ekb.eg/

MainTitle

IMPROVEMENT THE KEEPING QUALITY AND EXTENSION OF SHELF LIFE OF LOW SALT WHITE SOFT CHEESE USING TREATED MILK WITH NISIN

Details

Type

Article

Created At

22 Jan 2023