Petfood Industry - December 2013 - 39

www.petfoodindustry.com

output, according to the
company.
As part of development of the MS3000,
dog food was produced
and analyzed for percent
starch gelatinization. For
comparison purposes,
starch gelatinization
was also measured on a
processed dog food from
a traditional Insta-Pro
high shear extruder, a
premium dog food from
another manufacturer and
a sample taken from an
Insta-Pro preconditioner.
When traditional InstaPro high shear extrusion
was used, the starch
was highly gelatinized,

PetfoodIndustry

Study parameters:
Validating the typical petfood process
In the process of its research, Extru-Tech reviewed many possible paths for validation of a typical
petfood process. In order of preference and viability:

Pilot plant-most accepted
and least risk:

■ Configure a pilot plant with
representative productionscale equipment models
and perform a tailored
challenge study with
specific formulations,
equipment configuration,
product specifications and
targeted pathogens;
■ Pros-Correlation becomes
moot, no risk;
■ Cons-None;

In-plant surrogate:

■ Select non-pathogenic
surrogate and inoculate
actual production process
flow;

December 2013

■ Pros-Matched equipment
and process model;
■ Cons-Lack of applicable
(correlation) challenge
study data;

In-plant pathogenic:

■ Inoculate actual production
process flow with
pathogenic microbe;
■ Pros-Correlation becomes
moot;
■ Cons-Risk of future events
and liability thereof;

Laboratory validation:

■ Secure a BSL-2 Laboratory
to perform "bench-top"
validation;

■ Pros-Specific pathogen,
surrogate correlation,
tailored formulation;
■ Cons-Does not replicate
equipment scale;
configuration or the
manufacturing process.

Scientific literature-Least
accepted and most risk:

■ Search for existing
scientific data that
best represents your
manufacturing model;
■ Pros-Least cost;
■ Cons-Difficult to find a
single study that will be even
minimally representative of a
petfood extrusion process.

39


http://www.petfoodindustry.com

Table of Contents for the Digital Edition of Petfood Industry - December 2013

Contents
Petfood Industry - December 2013 - Cover1
Petfood Industry - December 2013 - Cover2
Petfood Industry - December 2013 - Contents
Petfood Industry - December 2013 - 2
Petfood Industry - December 2013 - 3
Petfood Industry - December 2013 - 4
Petfood Industry - December 2013 - 5
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