This is encouraging news for beekeepers and consumers on how best to protect the nutrional value of the B complex vitamins in this complete food. It's not suprising to see that, as with honey, its best to keep your bee products away from sunlight...
Presence and Stability
of B Complex Vitamins in Bee Pollen Using Different Storage Conditions
Food ChemToxicol, 2012 Sep 25
This study
has the objective of evaluating the stability of B complex vitamins and its
vitamers, for a period of one year of storage. The pollen samples were stored
under room temperature (with and without light) and frozen.
The vitamins were
quantified by HPLC with fluorescence detection. All proposed vitamins were
found in the samples and the dehydration process didn't interfere in vitamin content.
The variations were (dry basis): 0.59-1.09 mg/100g (B(1)); 1.73-2.56 (B(2));
6.43-15.34 (PP) and 0.33-0.68 (B(6)).
After one
year of storage, it can be stated that vitamin B(1) concentration remained
constant, while for the others, the concentration loss was dependent on time
rather than on storage conditions.
All samples were considered Vitamin B(2)
sources. The influence of the storage time in the concentrations of vitamin B6
and PP was explained mathematically, through linear regression equations of
multivariate analysis.
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