colour in almond biscuits
hello,
we produce in a small factory almond biscuits known as Biscotti. They are cutted after baking. So you see in the biscuits section the almond sliced. After 5-6 months the colour of the almond sliced change from white to yellow/green as if it was old, there is no problem in taste only in aspect. We already made analysis about peroxides but there is no difference between a sample with white almond and yellow almonds, so it seems to be not a problem of oxydation of fats. The biscuits are packed in protective atmosphere with nitrogen. Do you have some suggestion to discover the cause?
best regards
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