Food Chem Toxicol, 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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