Beta
205838

Prevalence of some deteriorating microorganisms in raw milk and some locally made cheese

Article

Last updated: 28 Dec 2024

Subjects

-

Tags

veterinary sciences - basic, clinical, environmental, animal-origin food hygiene, feed hygiene, etc.

Abstract

Food deterioration has become a very important issue as excessive amounts of food are lost due to microbial spoilage. The work aimed to assess the microbiological quality of raw milk and soft locally made cheeses in Assiut city, Egypt. A total of one hundred and fifty random samples of raw bovine milk (90 samples) and locally made cheese including Kareish and Domiati cheese (30 samples each) were collected randomly from different localities in Assiut city, Egypt. These samples were examined for microbiological evaluation. The investigation revealed that the average APC were 1.9×106, 2.6×106, 6.2×106, 7.5×105 and 1.8×105 cfu/ml or /g for dairy farm milk, dairy shops, street vendor raw milk, Kareish cheese and Domiati cheese, respectively and the average Psychrotrophic count was 8.3×105, 1.0×106, 1.5×106, 2.5×105 and 9.0×104 cfu/ml or /g while the average Proteolytic count was 1.6×105, 2.1×105, 3.7×105, 5.3×104 and 2.0×104 cfu/ml or /g.  Additionally, the average Lipolytic count was 2.5×105, 3.9×105, 6.5×105, 9.8×104 and 2.8×104 cfu/ml or /g for the above-mentioned samples respectively. On the other hand, the Lactobacillus counts were 5.5×104, 8.8×104, 1.4×105, 1.9×104 and 5.2×103 cfu/ml or /g, respectively. The average count of total yeast and molds were 9.5×102, 2.5×103, 7.5×103, 7.5×102 and 6.2×102 cfu/ml or /g, respectively. In conclusion, the presence of these organisms indicted that the examined samples were of low quality which reflect unhygienic measures during milking, processing, storage, and distribution chain.

DOI

10.21608/nvvj.2021.205838

Keywords

Lipolytic, Proteolytic, Psychrotrophs, Raw milk, Spoilage

Authors

First Name

Sally

Last Name

Galaby

MiddleName

S

Affiliation

Department of Food hygiene, Faculty of veterinary medicine, Assiut university, Egypt

Email

sally_sandoz@yahoo.com

City

Assiut

Orcid

-

First Name

Nagah

Last Name

Maharik

MiddleName

Mohammed Saad

Affiliation

Department of Food Hygiene , Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.

Email

bosbosadel@aun.edu.eg

City

-

Orcid

-

First Name

Marwa

Last Name

Khalifa

MiddleName

Ibrahim

Affiliation

Department of Food hygiene, Faculty of veterinary medicine, Aswan university, Aswan, Egypt.

Email

mrwakhalifa@yahoo.com

City

Aswan

Orcid

-

Volume

1

Article Issue

2

Related Issue

27625

Issue Date

2021-06-01

Receive Date

2021-10-16

Publish Date

2021-06-01

Page Start

21

Page End

27

Print ISSN

2786-0272

Online ISSN

2786-0280

Link

https://nvvj.journals.ekb.eg/article_205838.html

Detail API

https://nvvj.journals.ekb.eg/service?article_code=205838

Order

4

Type

Original Article

Type Code

1,934

Publication Type

Journal

Publication Title

New Valley Veterinary Journal

Publication Link

https://nvvj.journals.ekb.eg/

MainTitle

Prevalence of some deteriorating microorganisms in raw milk and some locally made cheese

Details

Type

Article

Created At

23 Jan 2023