Volume 12, Issue 6 (Nov - Dec 2018)                   mljgoums 2018, 12(6): 24-27 | Back to browse issues page


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Soltani F, Mahdavi S. Contamination of Pasteurized Fruit Juices with Bacillus licheniformis in West Azerbaijan Province, Iran . mljgoums. 2018; 12 (6) :24-27
URL: http://mlj.goums.ac.ir/article-1-1130-en.html
1- Department of Food Engineering, Maragheh Branch, Islamic Azad University, Maragheh, Iran
2- Department of Microbiology, Maragheh Branch, Islamic Azad University, Maragheh, Iran
Abstract:   (3874 Views)
ABSTRACT
            Background and objectives: Bacillus licheniformis is a potential cause of spoilage in pasteurized products. The aim of this study was to identify and isolate B. licheniformis from commercial pasteurized fruit juices distributed in the West Azarbaijan Province, Iran.
            Methods: Sixteen fruit juice samples including four apple juice and 12 orange juice samples were collected from five fruit juice manufacturing companies in Iran. The samples were tested for the presence of B. licheniformis by culture in specific media and biochemical testing. Suspected samples were also investigated for the presence of the bacterium by polymerase chain reaction using specific primer for the gyrB gene.
            Results: Three samples (18.75%) from the 16 tested fruit juice samples were found as positive. In other words, one apple juice sample (25%) and two orange juice samples (16.66%) were contaminated with B. licheniformis.
            Conclusion: Isolation of this bacterium indicates the unsuitable manufacturing conditions and ineffective bacterial decontamination, which might also be favorable for the growth of other fruit juice spoilage bacteria.
            KEYWORDS: Bacillus licheniformis, Fruit and Vegetable Juices, Polymerase Chain Reaction.
Full-Text [PDF 594 kb]   (619 Downloads)    
Type of Study: Original Paper |
Received: 2018/10/29 | Accepted: 2018/10/29 | Published: 2018/10/29 | ePublished: 2018/10/29

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