2011-2012
Bernd Isenberg
Christiaan Broekman
International Business Students
Interest in sustainable development
SIFE (Ghana)
Passionate founders
Sound concept with proven benefits
Fermentation
principles
Lab behaviour
Standard procedures
and tests
Production protocols
Mentor and mentee
Small scale - Life Dairy
Big scale - UIRI
Old protocol
New protocol
Contamination risk
Medium
Low
Preparation time
2 h
1.5 h
Incubation temp.
37° C
45° C
Incubation time
12-14 h
6 – 8 h
Triculture
Monoculture
Control (yoghurt)
Fifty-Fifty
Sensory checks
E-coli tests
Yeasts and molds analysis
Under refrigeration, Yoba has a shelf life of
more than one month.
First Yoba packaging
and promotional
materials
Test-market with 1000
cups of Yoba
Several consumer
segments
Off-taste
Insufficient growth
Through trial-and-error to safer production
protocol:
◦
37°C instead of 45°C
UIRI aqcuired freeze dryer
Initial tests: machine works, electricity a
problem
UIRI will improve power supply and continue
the experimentation
Optimized production protocol
Found consumers’ favorite bacteria-mix
Developed joint marketing plan with UIRI
Resolved technical issues
Started as a collaboration between SYPO and
Pat the Child
Life Dairy Yoghurt is being sold and
distributed in Mukono and Buikwe districts
Yoba wants to introduce pro-biotic yoghurt
to the company.
Sub-optimal equipment
◦
No proper pH measuring device, just pH paper
◦
No water bath to keep the milk at a constant
temperature. Yoba-bacteria did not ferment in
experimentation stage.
Experimentation to keep the milk at a
temperature around 40-45°C, for
fermentation to occur.
After talking to people at UIRI and Ugandans
from the West (where dairy is very popular
and people have more experience with dairy
products) we found alternative methods.
Charcoal stove
Artificial water bath
Wooden box
Limestone
Bigger quantities of milk means slower
cooling down Yoba bacteria can ferment in
10Liters or more of milk at room
temperature.
For 1 or 2 Liters (Yoba Fresh Starter) a thermo
flask can be used.
Once Yoba was succesfully produced at Life
Dairy, the school feeding program could kick
off.
Fred will go twice a week to the school and
distribute yoghurt to the children
This will be funded by the Yoba for Life
Foundation.
300 children in a primary school in Katete will
get a cup of Yoba yoghurt once per week.
The Yoba will be produced and distributed by
Fred, manager of Life Dairy and will be
funded by the Yoba for Life foundation.
Two promising candidates:
◦
GWDFA
◦
Gulu Milk supply
Big scale (UIRI) and small scale (Life Dairy)
managed by Ugandan organizations
Dairy Development Authority and SYPO
provide support
...with wonderful people...
... Some imperfections...
...and now probiotic Yoba Yoghurt!
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