centre for feed technologyfeedconferences.com/sitebuildercontent/sitebuilderfiles/kraugerud.pdf ·...
TRANSCRIPT
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Quality and confidentiality
in research
Centre for
Feed
Technology
VICTAM-2017, Technology Transfer & Novel IngredientsCentre for Feed Technology
Norwegian University of Life Sciences (NMBU)
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Centre for
Feed Technology
By
PhD Olav Fjeld Kraugerud &
MSc Dejan Knezevic
VICTAM-2017 Technology Transfer & Novel IngredientsCentre for Feed Technology
Norwegian University of Life Sciences (NMBU)
Olav Fjeld Kraugerud
Tel: +47 6723 0975
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Vision:
Delivering
quality in
research & development
in feed & nutrition
Centre for Feed Technology - Fôrtek
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Outline of the presentation
o Description of Centre for Feed Technology, NMBU
o Education in Aquaculture, Feed Technology, & relevant studies
o Our philosophy & tools
o Example of feed processing trials
o New sources for protein
o How to process & proceed
o Summary
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ARRIANA Oct 2014
• We offer possibilities for in-depth studies within
animal husbandry and aquaculture, incl. feed
• Create your own subject profile
• Unique in the job market
• Global job opportunities
• Study catalogue (english: page 71 )
Master degree @ dept. Animal & Aquacultural Sciences
3 in English
• Feed Manufacturing Technology
• Aquaculture
• Erasmus Mundus – animal breeding (together with WUR)
1 in Norwegian - Animal science
Student opportunities, Norwegian University of Life Sciences
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6
University head
Dept. for Research,
Innovation, & ext. collaboration
Centre for FeedTechnology
Dep. of Animal & Aquacultural
Sciences
Otherdepartments
(Technical, Vet. School, Food)
- Performing research trials
- Part of research group
- Lecturing
- supervising MSc-students
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Extrusion line
o Flexible
o 2 feeding bins
o Allow e.g. one main mash, and
o mixed with a second ingredient
easily performance of a regression
design
o Double conditioner
o Retention time: 1 minute – 10 minutes
o Up to 40% moisture in mash
o (depending on mash)
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Extrusion line
o Flexible
o Liquid addition (other than H2O)
o Mixer
o Conditioner
o Extruder
o H2O addition
o Mixer
o Conditioner
o Extruder
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Extrusion line
o Flexible
o Amountwise
o Usually: 150 – 300 kgs/h
o Down to 50 kg/h possible
o Up to 500 kgs/h possible
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Gentle Vacuum Coater GVC 1000
Developed by•Amandus Kahl &
•Centre for Feed Technology
Centre for Feed Technology - Fôrtek
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Connected Technologies at our Centre
o Vacuum coaters
o 6 L (twin shaft, Forberg)
o 150 L (Gentle Vacuum Coater)
o 200 L (twin shaft, Dinnissen)
o Mixers
o 6 L (twin shaft)
o 40 L (twin shaft)
o 100 L (twin shaft)
o 400 L (twin shaft, electric heaters, insulated)
o Dryers
o Fluidized bed
o Batch dryers (6 units, ca 20 kg capacity each)
o Grinding
o Hammer mill
o Roller mills
o UPZ-mill
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Our philosophy:
Biological driven
process development
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The species available at NMBU for scientific experiments
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Or, of we should speak it out:
To make feed as
the animals demand
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Need for protein sources
• Increased consumption of animal proteins is
creating an immense demand of high quality
feed.
• Researchers have focused on providing enough
protein from plant sources.
• Marine derived ingredients in Norwegian
salmon feed has decreased from 90 % in 1993
to about 30 % in 2013.
• Feed development can make sure that less
human food crops, and more non-edible
biomass, is used to feed animals, particularly in
fish diets.
Picture 1 Source http://www.petfoodindustry.com
Picture 2 Source http://aquatechcenter.com/facilities/
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Technology Transfer to Food
Industry
• Assists with the development of new food products and technical
solutions.
• Encouraging innovation, promoting the adoption of appropriate
technology.
• At NMBU we have been sharing skills, knowledge, technologies, with
students, universities and other institutions.
• Examples: Products from oilseeds, pulses and legumes.
• * Production of L- Phenylalanine by the enzyme method.
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Ingredients – from the portfolio at
NMBU
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Ingredients – basic demands
• Optimal and renewable protein resources.
• Safe for animals and humans and without anti-nutrients or toxins.
• Has to be accepted by the animals, with optimal taste and flavor.
• Optimally balanced profile of amino acids.
• In addition, such ingredient should influence the best
possible physical characteristics and technological
quality of extruded or pelleted feed products.
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Yeast and bacterial biomass
• Advances in fermentation technology, makes yeast
economically more feasible
• A study carried out at the Norwegian University of Life
Sciences showed Candida utilis and Kluyveromyces
marxianus to be good protein sources in Atlantic salmon diets.
• These single-cell organisms showed possibility to replace up
to 40% of protein from high-quality fishmeal, without any
harmful effect on fish growth performance, digestibility or
nutrient retention.
• Low levels (4%) of inactive brewer’s yeast improved growth
performance and modulated intestinal microbiota in different
fish species.
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Microalgae
• Algae’s are a promising alternative for enhancing the nutritional
value of conventional aquatic feeds, as a partial substitute for
fishmeal for intensive aquaculture.
• Excellent amino acid profile in its protein and with a high digestibility
rate in the research model animals.
• The production of such protein does not compete with any other
established food-protein sources.
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Other bacterial biomass
• Bacterial Protein Meal (BPM), 2nd gen, produced by aerobic fermentation of natural gas as energy / carbon source and ammonia as N source from Methylococcus capsulatus, Ralstonia, Brevibacillus agri and Aneurinibacillus.
• Such material contain about 70% crude protein and up to 10% lipids.
• A study at NMBU showed that BPM in mink, as model animal for fish, had high fecal digestibility of N, about 80%. BPM gives the same retention of nitrogen, heat production and energy retention as fishmeal.
• When BPM made up 50% of dietary N there was no hostile effects for growth of the Atlantic salmon.
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Locally produced novel feed
ingredients may enhance product
quality
• Novel feed ingredients based on local natural
resources.
• Can increase food security, but also can improve
product quality of milk and meat from cattle, pigs,
poultry and fish.
• Novel feed ingredients that contain bioactive
components, antioxidants or they can improve the
flavor and odor of meat and milk products.
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Tree biomass as feed, for
bacteria
• NMBU research (in a centre named “Foods of
Norway”) has recently demonstrated that salmon
thrives on a feed with proteins derived from trees.
• Yeast was grown on sugars from tree biomass
• Trials with salmon showed positive effects of yeast
on both appetite and growth as well as health
(preliminary results, NMBU, 2017).
• Next step: Which effects can be found in pigs.
• Background:
Yeast contains bioactive components that modulate
the immune system. This experiment will help us
study effects of feeding yeast on piglets' immunity
and overall health.Picture 1 Source www.proof.net.au
Picture 2 Source http://www.thepigsite.com
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Each scientist its project – but
one thing in common
• A lot of new source, with each their requirement
• Many of the new ingredients are high in moisture
content & they require more processing in order to
produce dry feed.
• We develop solutions through
• choosing the right equipment for processing,
• parameter adjustments, and
• machine optimization
that can deal with the special characteristic of
each material.
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Choosing the right equipment
• Wet feed or liquid forms of feed can be added
directly to the conditioner
• These raw materials do not have to be dried first
before they can be further processed.
• This can be applied for processed insects, fish
hydrolysates or paste, mechanically de-bounded
meat algae, etc.
• Proper processing of the dry ingredients is
necessary in order to make this process work.
• Reducing the particle size in the milling process,
precise dosing and achieving an homogeneous mix
is very important for a successful production.
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Process optimization – with a
nutritional focus
When planning a feed production and feeding trial, we go
carefully through the plan with the one in charge nutrition:
• Particle size
• Mixing time
• Liquid addition
• Screw configuration
• SME
• Temperature requirements
• Die characteristics
• Drying optimization
• Physical pellet properties
• Water activity (Aw)
• Packaging
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Some issues of new feed
materials
• Limited quantity
• Unknown physical properties
• Chemical interactions with other materials
• Necessity for new types of machines
• Manual handling- automated dosing and processing is in many cases impossible to conduct
This mix of different expertise and experience is necessary to find the right solutions that can
be implemented to meet the need, for the new feed.
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Classical example from our Centre
o Phytate in ingredients
o Easy to solve: Add phytase in the feed (loads of commercial products)
0 5 10 15 20 25 30 35 40 ºC
Not that
easy
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IP6
, g
kg
-1
IP6
, g
kg
-1
Minutes
5 10 20 30 40
60 ºC, 35% H2O
60 ºC, 45% H2O
45 ºC, 35% H2O
45 ºC, 45% H2O
Denstadli et al., 2006
1/3 of IP6
after 10 min.Solution: Degrade during processing
Example, cont.
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Example, cont.
Then
o Find a conditioner with 10 minutes retention time
o (Like the one we have at Centre for Feed Technology )
Mixing, water,
steam
Retention (up to
10 minutes)
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Classical example –
conclusion of what is needed to succeed
- Knowledge about
- Nutritional & physical demands
- Feed technological hardware
- Infrastructure
- Fish lab
- Feed plant
- Lab (nutritional & feed physical)
Centre for Feed Technology - Fôrtek
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New ingredients - summary
• [even] more plant ingredients
• Abundancy, price, lack of FM
• Demand for purified protein concentrates
• New marine sources
• E.g. Krill
• Macroalgea
• Direct or indirect
• Ingredients feeding on “non-feed”
• Microalgea
• Yeast (e.g. from wood or macroalgea biomass)
• Insects (worms of these insects)
• Added as a slurry, usually with DM 10 – 30%, or dry
• Of slurry:, Viscosity: usually cP < 500
When adding more
ingredients with «low
nutrient density», it has to
be compensated
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Technology transfer - summary
• Feed sector focuses on efficiency
• Food sector focuses on uniformity of the pellets
• Same basic knowledge needed, but end use is different
• ANF to increase productivity in production animals or reduce obesity danger in humans
• Pre-processing is similar, such as de-hulling, and/or starch purification
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Centre for Feed Technology, NMBU (Fôrtek)
Thank you
for your
attentionThe changing of screw configurations, by
Olav Fjeld Kraugerud Photo: Gisle Bjørneby