Jump to content

  • Quick Navigation
Photo
- - - - -

Veg. Produce-Listeria monocytogenes contamination and acceptable level


  • You cannot start a new topic
  • Please log in to reply
2 replies to this topic

#1 Ashfaq Hussain

Ashfaq Hussain

    Grade - AIFSQN

  • IFSQN Associate
  • 49 posts
  • 5 thanks
0
Neutral

  • Pakistan
    Pakistan
  • Gender:Male
  • Location:Panjab, Lahore
  • Interests:Food safety and Quality.
    HACCP/ PRP & oPRP.
    Pest management and chemical handling.
    Operation and supply chain.

Posted 12 March 2019 - 05:18 AM

Hi all,

We are working on Listeria monocytogenes contamination in Vegetable processing. As, the basically there are often 3 main causes of contamination as below mentioned. We are control through the cleaning and sanitation in process.

 

1.    Raw materials         
2.    Environment and equipment
3.    Personnel

 

My question is what is the acceptable limits as above mentioned primary causes. Like a Listeria is cleaning cloths <500 cfu/cloth is unacceptable.

http://www.ifsqn.com...ces/#entry60958

Looking forward your response.

 

Regards,

Ashfaq Hussain



#2 EagleEye

EagleEye

    Grade - MIFSQN

  • IFSQN Member
  • 75 posts
  • 19 thanks
12
Good

  • Earth
    Earth
  • Gender:Male

Posted 12 March 2019 - 07:19 AM

Hello Ashfaq,

 

Give some more contextual data if possible. That would help to get an answer easily.

 

Listeria monocytogenes is a really undesirable bacteria in a food environment.

 

In many countries it is a "zero tolerance" pathogen and some countries like Canada has a maximum limit <100 CFU/g in certain RTE foods. 



#3 Charles.C

Charles.C

    Grade - FIFSQN

  • IFSQN Moderator
  • 17,382 posts
  • 4836 thanks
943
Excellent

  • Earth
    Earth
  • Gender:Male
  • Interests:SF
    TV
    Movies

Posted 12 March 2019 - 08:16 AM

Hi all,

We are working on Listeria monocytogenes contamination in Vegetable processing. As, the basically there are often 3 main causes of contamination as below mentioned. We are control through the cleaning and sanitation in process.

 

1.    Raw materials         
2.    Environment and equipment
3.    Personnel

 

My question is what is the acceptable limits as above mentioned primary causes. Like a Listeria is cleaning cloths <500 cfu/cloth is unacceptable.

http://www.ifsqn.com...ces/#entry60958

Looking forward your response.

 

Regards,

Ashfaq Hussain

 

Hi Ashfaq Hussain,

 

There are a few key questions, eg -

 

(1) What is the "type" of finished product ? eg RTE ?

(2) What is the basic process ?,eg Bactericidal Stage >= 4D ?

(3) How is it packed/stored ?,eg vac.pack ?, chilled ?

(4) Are there Regulatory micro. requirements for yr product at the point of consumption ?

 

The Primary source of L.monocytogenes is the external environment where it is ubiquitous.I anticipate you know this already from yr previous forum thread -

https://www.ifsqn.co...toring-program/

 

I suggest you study the thread and file in this Post -

https://www.ifsqn.co...em/#entry109592

 

and perhaps this file -

Attached File  White Paper- Microbiological Testing of Fresh Produce.pdf   127.88KB   16 downloads

 

Re - Cloth, hands, clothing -  the limits are normally associated with a just cleaned/sanitized "item" . Should not detect  L.monocytogenes.

Re- environment, as per previous post, findings/requirements will relate to the product/process/gmp. See query (1-4) above.


Kind Regards,

 

Charles.C


Thanked by 1 Member:



0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

EV SSL Certificate