VITAMIN A FORTIFIed PEANUT BUTTER - The Official Website of ...

In terms of vitamin A content, the final fortified product showed a vitamin A content that ranged
from 3.01 – 3.07 µg RE/g peanut butter or an average recovery of 3.03 µg RE/g peanut butter. Since the
value obtained did not meet the minimum target fortification level, it was recommended to add an
overage to give allowance for losses incurred during processing.
Table 2.4 Effect of absence of light on vitamin A recovery during laboratory preparation of
fortified peanut butter
Vitamin A Recovered
Sampling Point
Vitamin A Content
% Recovery
(during filling)
(µg RE/g)
1
Start 3.01 83.8
Middle 3.07 85.5
End 3.01 83.8
Average 3.03 84.4
Std. Deviation 0.03 0.98
% Variability 1.14 1.16
1 Expected level of vitamin A in the final fortified product was 3.59 µg RE/g peanut butter. This was computed
based on a premix with a vitamin A content of 175.46 µg RE/g peanut butter.
Trials at the Industry Collaborator’s Plant
Experiment 3: Determination of the suitability of the two different types of mixers of the industry
collaborator, for the commercial preparation of premix
Results of vitamin A analysis (Table 2.5) in premix prepared using the industry collaborator’s
horizontal mixer indicated high vitamin A recoveries that ranged from an average of 86.2% to 96.9%. In
terms of dispersion, replicate samples taken from the second and third trials showed that there was
uniform dispersion of the vitamin A in the premix as indicated by the low percentage variabilities (5.58%
and 2.72%).
Likewise, premix prepared using the industry collaborator’s Hobart Planetary mixer indicated
high vitamin A recoveries in the peanut butter premix ranging from an average of 89.5% to 102.6%
(Table 2.6). Percentage variabilities were relatively low (2.58, 4.92% and 9.46%), indicating that the
vitamin A palmitate added was uniformly distributed in the premix. Based on the above findings, both
the Horizontal mixer and Hobart Planetary mixer of the industry collaborator were found suitable for the
preparation of premix.
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