PET Food Processing - September 2018 - 29
101
EDUCATION
Extrusion Cooking
A short course in extruded pet foods and treats.
By Jennifer Semple | jsemple@sosland.com
E
Extruders are the workhorses of the pet food and treat
industry. A single extruder can produce more than 100
million lbs. of pet food per year. Controlling the complex
process parameters of extrusion cooking is the challenge
behind consistently producing pound after pound of quality products. In July, Texas A&M's Process Engineering
Research & Development Center (PERDC) hosted its
third annual practical short course in extruded pet food
and treats on its campus in College Station, Texas.
For the 45 attendees, it was back to school for three
jam-packed days of educational presentations and
equipment demonstrations from industry experts.
Attendees arrived from across the U.S. as well as five
countries, representing processors, suppliers and industry associations. Some attendees were new to their companies and taking the course to learn more about their
new responsibilities, but many were seasoned veterans
seeking professional development to expand their understanding of extrusion cooking.
Center stage expertise
Director of the Texas A&M Engineering Experiment
Station's PERDC, Mian Riaz, Ph.D., opened the course
with the traditional Aggieland "Howdy" at the welcome
reception sponsored by Kemin Nutrisurance, Inc. Riaz
has worked for the Texas A&M University system for 26
years, leads the extrusion technology program and has
been published extensively on extrusion and other related topics. From the opening presentation on the principles of extrusion by Riaz it became clear that extrusion
cooking is not a fix-it-and-forget-it process.
Riaz detailed the reasons extrusion is such a popular method of pet food and treat processing. Extrusion
cooking is energy efficient, pasteurizes raw materials,
produces very little process effluents or waste and is flexible in the raw materials that can be used and the finished product characteristics that can be produced.
Galen Rokey, process technology director of companion animal division for Wenger Manufacturing, Inc., covered multiple topics during the short course and succinctly described extrusion cooking as the process whereby
biopolymers such as starch and protein are plasticized in
food by a combination of heat, pressure, shear and moisture resulting in the denaturization of the protein and the
gelatinization of the starch and the exothermic expansion
of the extrudate. Sounds simple, right?
Right: Director of the
Texas A&M Engineering
Experiment Station's
PERDC, Mian Riaz, Ph.D.,
answered questions
during the product
demonstrations.
Left: Small, boneshaped pet treats are
fed to a dryer.
Sosland Publishing
www.petfoodprocessing.net | September 2018 | PET FOOD PROCESSING
29
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PET Food Processing - September 2018
Table of Contents for the Digital Edition of PET Food Processing - September 2018
Pet Food Processing - September 2018
CONTENTS
OFF THE LEASH - Learning curve
TRENDS - Can appeal
PLANT PROFILE - capitalizing ON KIBBLE
SMALL BUSINESS PROFILE - the BUTCHER shop
EDUCATION - Extrusion Cooking 101
REGULATORY - International EXPORTS
FOOD SAFETY - COLD cure
INGREDIENTS - really CLEAN
WORLD MARKETS - South Africa PET FOOD
FORMULATION - balancing ACT
EQUIPMENT - the NEXT STEP
OPERATIONS - What could go WRONG?
PACKAGING - up and COMING
BEST IN SHOW
EVENTS
INDEX
PET Food Processing - September 2018 - Pet Food Processing - September 2018
PET Food Processing - September 2018 - Pet Food Processing - September 2018
PET Food Processing - September 2018 - 2
PET Food Processing - September 2018 - 3
PET Food Processing - September 2018 - 4
PET Food Processing - September 2018 - 5
PET Food Processing - September 2018 - 6
PET Food Processing - September 2018 - CONTENTS
PET Food Processing - September 2018 - OFF THE LEASH - Learning curve
PET Food Processing - September 2018 - 9
PET Food Processing - September 2018 - 10
PET Food Processing - September 2018 - TRENDS - Can appeal
PET Food Processing - September 2018 - 12
PET Food Processing - September 2018 - 13
PET Food Processing - September 2018 - 14
PET Food Processing - September 2018 - PLANT PROFILE - capitalizing ON KIBBLE
PET Food Processing - September 2018 - 16
PET Food Processing - September 2018 - 17
PET Food Processing - September 2018 - 18
PET Food Processing - September 2018 - 19
PET Food Processing - September 2018 - 20
PET Food Processing - September 2018 - 21
PET Food Processing - September 2018 - 22
PET Food Processing - September 2018 - 23
PET Food Processing - September 2018 - 24
PET Food Processing - September 2018 - 25
PET Food Processing - September 2018 - 26
PET Food Processing - September 2018 - SMALL BUSINESS PROFILE - the BUTCHER shop
PET Food Processing - September 2018 - 28
PET Food Processing - September 2018 - EDUCATION - Extrusion Cooking 101
PET Food Processing - September 2018 - 30
PET Food Processing - September 2018 - 31
PET Food Processing - September 2018 - 32
PET Food Processing - September 2018 - REGULATORY - International EXPORTS
PET Food Processing - September 2018 - 34
PET Food Processing - September 2018 - 35
PET Food Processing - September 2018 - 36
PET Food Processing - September 2018 - FOOD SAFETY - COLD cure
PET Food Processing - September 2018 - 38
PET Food Processing - September 2018 - 39
PET Food Processing - September 2018 - 40
PET Food Processing - September 2018 - INGREDIENTS - really CLEAN
PET Food Processing - September 2018 - 42
PET Food Processing - September 2018 - 43
PET Food Processing - September 2018 - 44
PET Food Processing - September 2018 - 45
PET Food Processing - September 2018 - 46
PET Food Processing - September 2018 - WORLD MARKETS - South Africa PET FOOD
PET Food Processing - September 2018 - 48
PET Food Processing - September 2018 - 49
PET Food Processing - September 2018 - 50
PET Food Processing - September 2018 - 51
PET Food Processing - September 2018 - 52
PET Food Processing - September 2018 - FORMULATION - balancing ACT
PET Food Processing - September 2018 - 54
PET Food Processing - September 2018 - 55
PET Food Processing - September 2018 - 56
PET Food Processing - September 2018 - 57
PET Food Processing - September 2018 - 58
PET Food Processing - September 2018 - EQUIPMENT - the NEXT STEP
PET Food Processing - September 2018 - 60
PET Food Processing - September 2018 - 61
PET Food Processing - September 2018 - 62
PET Food Processing - September 2018 - OPERATIONS - What could go WRONG?
PET Food Processing - September 2018 - 64
PET Food Processing - September 2018 - 65
PET Food Processing - September 2018 - 66
PET Food Processing - September 2018 - PACKAGING - up and COMING
PET Food Processing - September 2018 - BEST IN SHOW
PET Food Processing - September 2018 - 69
PET Food Processing - September 2018 - 70
PET Food Processing - September 2018 - 71
PET Food Processing - September 2018 - EVENTS
PET Food Processing - September 2018 - 73
PET Food Processing - September 2018 - INDEX
PET Food Processing - September 2018 - 75
PET Food Processing - September 2018 - 76
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