PET Food Processing - June 2019 - 42

Wenger's thermal
twin extruder utilizes
thermal energy, instead
of mechanical energy,
which is highly flexible
and can reduce energy
and wear costs.
Wenger Manufacturing, Inc.

portions of the final product due to non-uniform hydration and cooking," Rokey says.
Innovations in sanitation and automation have
also revolutionized extrusion systems. "The primary
technology that has allowed for greater flexibility in
production of an ever-widening range of formulations
is the proliferation of the twin-screw extrusion technology with its intermeshing, self-wiping, positive displacement characteristics," Rokey adds. These features
make it easier to clean equipment and ensure consistent,
continual throughput.
Extruder manufacturers across the board are picking
up the pace of new offerings to meet the needs of processors. To help test and launch new products more quickly,
the TwinLab-F 20/40 laboratory-sized twin-screw extruder from Brabender GmbH & Co., Duisburg, Germany,
has been specially designed for research and development
applications with a low output rate of 0.5 to 10 kg/hr. It
also features a horizontal, clamshell-designed barrel that
allows individual processing steps to be visually assessed
and enables a multitude of screw configurations from a
segmented screw design for maximum product flexibility.
Amandus Kahl, Reinbek, Germany, has developed a
new extrusion product family with four machine sizes
covering production requirements from lab-scale up to
industrial large-scale applications. All machines feature a
replaceable and hydraulically adjustable die.

Trends driving innovation
The increasing demand for high-protein kibble, gentler
processing methods and the inclusion of nutraceuticals

42

PET FOOD PROCESSING | June 2019 | www.petfoodprocessing.net

is fueling recent innovations in extrusion systems.
"Production challenges that processors face with the
growth in popularity of high-protein extruded pet foods
are much greater without the latest generation of technology, especially with systems that may have more than
one generational gap in technology," says Daniel Tramp,
technical sales, companion animal division, Wenger.
These trends necessitate specialized production parameters that have been tried, tested and implemented by
extrusion technology experts.
High-meat inclusion formulas in particular have
introduced several challenges. "The first being the need
for a more positive style of pumping characteristic from
the extrusion screws for creating pressure within the
extruder barrel on ingredients that naturally have more
slip due to their high moisture nature," Tramp says. "The
second being the increase in starch restrictions. With
starch as a lower portion of the recipe, we are often
seeing the need for starches with high-end binding capabilities. These starches often need precise and gentle
handling throughout the cooking process."
Both single- and twin-screw extruders have improved
in recent decades to accommodate high-protein diets
and food safety standards. "The single-screw architecture
has performed very well within this genre of products,
achieving on various diets above 100% inclusion rate of
fresh meat (as a percentage to dry feed rate)," explains
Will Henry, director, research and development, ExtruTech, Sabetha, Kansas. "It is more critical to understand
the process economics of a high-protein diet, especially
yield loss due to shrinkage."


http://www.petfoodprocessing.net

PET Food Processing - June 2019

Table of Contents for the Digital Edition of PET Food Processing - June 2019

PET Food Processing - June 2019
CONTENTS
OFF THE LEASH - FEAR FREE
TRENDS - IN THE HOUSE
PLANT PROFILE - THE MEAT OF THE METRICS
FOOD SAFETY - VERIFIED ACCOUNTABILITY
INGREDIENTS - DEFINING CHELATION AND ENCAPSULATION
FORMULATION - FULL DISCLOSURE
EQUIPMENT - EXTRUSION INNOVATION
ON THE MOVE
OPERATIONS - CONTROL ISSUES
PACKAGING - MEDLEY OF MEALS
BEST IN SHOW
PATENTS TO PONDER
EVENTS
SIT, STAY, READ
AD INDEX
PET Food Processing - June 2019 - PET Food Processing - June 2019
PET Food Processing - June 2019 - PET Food Processing - June 2019
PET Food Processing - June 2019 - 2
PET Food Processing - June 2019 - 3
PET Food Processing - June 2019 - 4
PET Food Processing - June 2019 - CONTENTS
PET Food Processing - June 2019 - OFF THE LEASH - FEAR FREE
PET Food Processing - June 2019 - 7
PET Food Processing - June 2019 - 8
PET Food Processing - June 2019 - TRENDS - IN THE HOUSE
PET Food Processing - June 2019 - 10
PET Food Processing - June 2019 - 11
PET Food Processing - June 2019 - 12
PET Food Processing - June 2019 - 13
PET Food Processing - June 2019 - PLANT PROFILE - THE MEAT OF THE METRICS
PET Food Processing - June 2019 - 15
PET Food Processing - June 2019 - 16
PET Food Processing - June 2019 - 17
PET Food Processing - June 2019 - 18
PET Food Processing - June 2019 - 19
PET Food Processing - June 2019 - 20
PET Food Processing - June 2019 - 21
PET Food Processing - June 2019 - 22
PET Food Processing - June 2019 - 23
PET Food Processing - June 2019 - 24
PET Food Processing - June 2019 - FOOD SAFETY - VERIFIED ACCOUNTABILITY
PET Food Processing - June 2019 - 26
PET Food Processing - June 2019 - 27
PET Food Processing - June 2019 - 28
PET Food Processing - June 2019 - INGREDIENTS - DEFINING CHELATION AND ENCAPSULATION
PET Food Processing - June 2019 - 30
PET Food Processing - June 2019 - 31
PET Food Processing - June 2019 - 32
PET Food Processing - June 2019 - 33
PET Food Processing - June 2019 - 34
PET Food Processing - June 2019 - FORMULATION - FULL DISCLOSURE
PET Food Processing - June 2019 - 36
PET Food Processing - June 2019 - 37
PET Food Processing - June 2019 - 38
PET Food Processing - June 2019 - 39
PET Food Processing - June 2019 - 40
PET Food Processing - June 2019 - EQUIPMENT - EXTRUSION INNOVATION
PET Food Processing - June 2019 - 42
PET Food Processing - June 2019 - 43
PET Food Processing - June 2019 - 44
PET Food Processing - June 2019 - 45
PET Food Processing - June 2019 - 46
PET Food Processing - June 2019 - 47
PET Food Processing - June 2019 - 48
PET Food Processing - June 2019 - ON THE MOVE
PET Food Processing - June 2019 - 50
PET Food Processing - June 2019 - 51
PET Food Processing - June 2019 - 52
PET Food Processing - June 2019 - 53
PET Food Processing - June 2019 - 54
PET Food Processing - June 2019 - OPERATIONS - CONTROL ISSUES
PET Food Processing - June 2019 - 56
PET Food Processing - June 2019 - 57
PET Food Processing - June 2019 - 58
PET Food Processing - June 2019 - 59
PET Food Processing - June 2019 - 60
PET Food Processing - June 2019 - PACKAGING - MEDLEY OF MEALS
PET Food Processing - June 2019 - 62
PET Food Processing - June 2019 - 63
PET Food Processing - June 2019 - 64
PET Food Processing - June 2019 - 65
PET Food Processing - June 2019 - 66
PET Food Processing - June 2019 - 67
PET Food Processing - June 2019 - BEST IN SHOW
PET Food Processing - June 2019 - 69
PET Food Processing - June 2019 - PATENTS TO PONDER
PET Food Processing - June 2019 - 71
PET Food Processing - June 2019 - EVENTS
PET Food Processing - June 2019 - SIT, STAY, READ
PET Food Processing - June 2019 - AD INDEX
PET Food Processing - June 2019 - 75
PET Food Processing - June 2019 - 76
http://digital.petfoodprocessing.net/sosland/pfp/2020_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2020_03_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_10_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2019_03_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_12_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_09_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_06_01
http://digital.petfoodprocessing.net/sosland/pfp/2018_03_01
https://www.nxtbookmedia.com