Spoilage potential of pseudomonas spp. isolated from domiati cheese
Other Title(s)
مقدرة بكتريا السودوموناس المعزولة من الجبن الدمياطى على إتلاف الألبان و منتجاتها
Author
Hammad, Ahmad Mustafa Mahmud Abd al-Rahim
Source
Assiut Veterinary Medical Journal
Issue
Vol. 61, Issue 147 (31 Oct. 2015), pp.18-23, 6 p.
Publisher
Assiut University Faculty of Veterinary Medicine
Publication Date
2015-10-31
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Topics
Abstract EN
In this study, 80 samples of popular Egyptian raw milk cheese, Domiati cheese, were examined for the incidence and characteristics of Pseudomonas spp.
using traditional and molecular techniques.
70 of examined cheese samples (87.5%) were contaminated with Pseudomonas spp.
Mean Pseudomonas spp.
counts was 4.59 ± 0.35 log cfu/g, whereas mean proteolytic Pseudomonas spp.
counts was 3.65 ± 0.14 log cfu/g.
Screening of the eighty isolated strains by species-specific PCR revealed high incidence of P.fluorescens (45%).
97.5%, 87.5% and 73.7% of isolated strains showed protease, lipase and lecithinase activities, respectively.
Interestingly, 75% of the P.
fluorescens strains were positive for all enzyme activities.
The alkaline protease (apr) gene was detected in 41.25% (33/80) of isolates and proteolytic activity was observed in all strains carried this gene.
72.5% (58/80) of isolated strains were psychrotrophic.
In conclusion, this study provides information about the spoilage potential of Pseudomonas spp.
in Domiattie cheese and merely underline the importance of strict hygiene measures in preparation of Domiati cheese in Egypt.
American Psychological Association (APA)
Hammad, Ahmad Mustafa Mahmud Abd al-Rahim. 2015. Spoilage potential of pseudomonas spp. isolated from domiati cheese. Assiut Veterinary Medical Journal،Vol. 61, no. 147, pp.18-23.
https://search.emarefa.net/detail/BIM-648624
Modern Language Association (MLA)
Hammad, Ahmad Mustafa Mahmud Abd al-Rahim. Spoilage potential of pseudomonas spp. isolated from domiati cheese. Assiut Veterinary Medical Journal Vol. 61, no. 147 (Oct. 2015), pp.18-23.
https://search.emarefa.net/detail/BIM-648624
American Medical Association (AMA)
Hammad, Ahmad Mustafa Mahmud Abd al-Rahim. Spoilage potential of pseudomonas spp. isolated from domiati cheese. Assiut Veterinary Medical Journal. 2015. Vol. 61, no. 147, pp.18-23.
https://search.emarefa.net/detail/BIM-648624
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 22-23
Record ID
BIM-648624