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Enterobacteriaceae indicator- raw chicken


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#1 kbuchanan

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Posted 19 August 2017 - 02:14 PM

Hello, hope you can help with a quick query. i'm looking for microbial guideline limits for enterobactericeae levels in raw chicken? Does anyone have a reference for this? My understanding is that this can only give an indication of hygiene on the day of production but that because of the presence of psychrophilic enterobacteriaceae which multiply during refrigeration and storage, that it is not a great indicator to use for this matrix, and so there is not a guideline usually set. Is that right? Many thanks



#2 Charles.C

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Posted 20 August 2017 - 04:43 AM

Hello, hope you can help with a quick query. i'm looking for microbial guideline limits for enterobactericeae levels in raw chicken? Does anyone have a reference for this? My understanding is that this can only give an indication of hygiene on the day of production but that because of the presence of psychrophilic enterobacteriaceae which multiply during refrigeration and storage, that it is not a great indicator to use for this matrix, and so there is not a guideline usually set. Is that right? Many thanks

 

Hi kbuchanan,

 

Most related comments / data is based on carcass measurements. Geographic locations vary in opinion.

 

JFI I enclose a few samples.

 

There are also psychrotrophic Enterobacteriaceae that are able to multiply in chilled foods. These are
widely distributed and found in a variety of foods including milk, meat and poultry. This makes it
difficult to interpret levels found throughout the shelf life of a chilled food as they do not necessarily
reflect initial contamination levels or whether temperature control has been adequate.
Enterobacteriaceae do provide an indication of processing and good hygiene on the day of
production.

 

(indc1)

 

Enterobacteriaceae  are  also  used  as  a  hygiene  indicator  for  food  including  fresh  meat  and,  for
example,  EU  Regulation  No  2073/2005  includes  a  Enterobacteriaceae  process  hygiene  criterion  for
carcasses of cattle, sheep, goat, horses and pigs. However, E. coli is often considered a more specific
indicator  for  faecal  contamination  (Craven  et  al.,  2003;  Baylis  et  al.,  2006).  This  is  because  certain
psychrotrophic  strains  of  Enterobacteriaceae  may  multiply  in  meat  and  the  Enterobacteriaceae  also
includes  bacteria  that  are  not  always  of  faecal  origin.  By  comparison,  E.  coli  is  generally  of  faecal
origin,  and  growth  of  this  organism  under  refrigeration  conditions  remains  minimal  (Baylis  et  al.,
2006).

 

(indc2)
 

Enterobacteriaceae, a hygiene indicator were also part of the microflora of chicken meat (Fig.5). The Initial population of Enterobacteriaceae (3.27log CFU/g) is indicative of adequate hygiene conditions of production in the poultry plant.

 

(indc3)

 

Attached File  FSIS poultry carcass process hygiene E.coli limits.png   104.35KB   3 downloads

(indc4)

 

There is very little scientific evidence for the establishment of the current microbiological criteria particularly in regards to the Enterobacteriaceae and its impact on animal and public health – i.e. what absolute limit (M) is appropriate to protect human and animal health?

(DEFRA,ABP materials,UK,2012)

 

Attached File  indc1 - A-NZ, Food.Standards - Compendium of Microbiological Criteria,2016.pdf   1.02MB   23 downloads

Attached File  indc2 - EFSA Indicators for poultry meat inspection,2012.pdf   2.11MB   18 downloads

Attached File  indc3 - Chicken meat quality, Enterobacteriaceae,2015.pdf   672.67KB   25 downloads

Attached File  indc4 - FSIS Micro. Sampling-Testing Raw-Poultry,2015.pdf   293.58KB   23 downloads


Kind Regards,

 

Charles.C


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