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Detection of Psychrophilic Clostridium spp. causing “Blown Pack” spoilage in meat juice samples from chilled vacuum-packed beef and lamb meat imported from different countries to Switzerland


Wambui, Joseph; Püntener, Sabrina; Corti, Sabrina; Cernela, Nicole; Stephan, Roger (2020). Detection of Psychrophilic Clostridium spp. causing “Blown Pack” spoilage in meat juice samples from chilled vacuum-packed beef and lamb meat imported from different countries to Switzerland. Journal of Food Protection, 83(1):56-59.

Abstract

"Blown pack" spoilage (BPS) of chilled vacuum-packed meat is mainly caused by anaerobic and psychrophilic Clostridium spp., including C. estertheticum, C. gasigenes, C. frigoriphilum, and C. frigidicarnis. Recently, its occurrence has been reported in several countries, especially in internationally traded meat. Therefore, this study aimed at detecting the occurrence of psychrophilic Clostridium spp. causing BPS in meat juice samples (MJS) from chilled vacuum-packed beef and lamb meat imported from other countries to Switzerland. One hundred fifty-four MJS (n = 78 from beef; n = 76 from lamb meat) were screened for psychrophilic Clostridium spp. by quantitative PCR, whereby MJS with a crossing point PCR cycle value <35 and >35 were considered positive and negative, respectively. Psychrophilic Clostridium spp. were detected in 10 MJS, of which 2 were from beef and 8 were from lamb meat. The two beef MJS originated from Spain and Lithuania, whereas the lamb MJS originated from New Zealand (six) and Australia (two). This is the first report of psychrophilic Clostridium spp. in MJS from chilled vacuum-packed beef and lamb meat imported from other countries to Switzerland and provides further evidence that the risk of BPS in lamb meat is higher than in beef.

Abstract

"Blown pack" spoilage (BPS) of chilled vacuum-packed meat is mainly caused by anaerobic and psychrophilic Clostridium spp., including C. estertheticum, C. gasigenes, C. frigoriphilum, and C. frigidicarnis. Recently, its occurrence has been reported in several countries, especially in internationally traded meat. Therefore, this study aimed at detecting the occurrence of psychrophilic Clostridium spp. causing BPS in meat juice samples (MJS) from chilled vacuum-packed beef and lamb meat imported from other countries to Switzerland. One hundred fifty-four MJS (n = 78 from beef; n = 76 from lamb meat) were screened for psychrophilic Clostridium spp. by quantitative PCR, whereby MJS with a crossing point PCR cycle value <35 and >35 were considered positive and negative, respectively. Psychrophilic Clostridium spp. were detected in 10 MJS, of which 2 were from beef and 8 were from lamb meat. The two beef MJS originated from Spain and Lithuania, whereas the lamb MJS originated from New Zealand (six) and Australia (two). This is the first report of psychrophilic Clostridium spp. in MJS from chilled vacuum-packed beef and lamb meat imported from other countries to Switzerland and provides further evidence that the risk of BPS in lamb meat is higher than in beef.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Food Safety and Hygiene
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Scopus Subject Areas:Life Sciences > Food Science
Life Sciences > Microbiology
Uncontrolled Keywords:Food Science, Microbiology
Language:English
Date:1 January 2020
Deposited On:16 Feb 2021 16:19
Last Modified:16 Feb 2021 16:19
Publisher:International Association for Food Protection
ISSN:0362-028X
OA Status:Closed
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.4315/0362-028x.jfp-19-321

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