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

used. From each production batch, one sample each was taken at the start, middle and end of filling.
Premix used in this experiment was prepared using the Hobart planetary mixer of the industry
collaborator. Results are shown in Table 2.9.
Technology Transfer and Adoption
To transfer the vitamin A fortification technology using a premix, a demonstration of the
recommended process for vitamin A fortification of peanut butter was done during the standardization of
the process at the collaborator's plant. The R&D Head, Production Head and two (2) production workers
of the industry collaborator were trained on the proper method of adding and mixing the fortificant to
peanut butter. A procedural guideline of the recommended process was likewise provided to the
collaborator, a copy of which is shown in Appendix A.
Preliminary Trials
RESULTS
Results of the dye test shown in Table 2.1 indicate that the dyed oil dispersed into the plain
peanut butter after 5 min of mixing. Visual examination however, showed some of the dyed oil splattered
at the sides of the mixer while some was noted at the bottom portion of the mixer. Scraping off of
adhering product from the mixer and mixing of the peanut butter for another 5 min resulted in the full
dispersion of the dyed oil into the plain peanut butter as indicated by the absence of reddish orange
streaks in any part of the peanut butter mixture. The same observations were noted for the addition of
dyed peanut butter to plain peanut butter. Considering the good dispersion of the dyed oil and of the dyed
peanut butter in the plain peanut butter matrix, it was recommended that a total mixing time of 10 min be
adapted for the mixing of the fortificant with plain peanut butter during the preparation of premix and of
the premix during the preparation of the final fortified product. Manual mixing of the fortificant and
premix with plain peanut butter was likewise recommended prior to mechanical mixing to facilitate their
dispersion in the peanut butter matrix.
Laboratory Trials at FDC
Experiment 1: Validation of the adequacy of the 10 min mixing time established in the dye test
Premix preparation. Results presented in Table 2.2 showed that peanut butter premix prepared in
Trial 1 had an average vitamin A content of 263.70 µg RE/g peanut butter or a vitamin A recovery of
90.3%, indicating that approximately 10% of the vitamin A palmitate added was lost during processing.
In terms of dispersion, it was found that the vitamin A added was uniformly distributed in the peanut
butter premix as indicated by the low percentage variability of 2.78%. Premix prepared in Trial 2
likewise showed an acceptable vitamin A content of 273.61 µg RE/g peanut butter or a vitamin A
recovery of 93.7%.
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