Citric Acid: Diminishing Intensity

[SWEETNESS]

Having an issue w/diminishing intensity of citric acid in production of Sour Citrus Gummies. I'm using the Gelatine Gummies recipe from Grewling's C&C. After setting the product, I'm cutting and dredging them in caster sugar:citric acid 9:1 and then sealing in poly bags. New productions have a whole lot of punch - right on the edge of what I think is a good sour balance for a gummy. We give them a 2 month shelf life and after the first couple of weeks, there's little residual sour.

Any thoughts on where the sour is going?

[Mjx]

I'm afraid organic chemistry is several years behind me, now, but I'm fairly certain that I recall citric acid as being one of the compounds that is degraded by UV light/heat, so... store in a cool, dark place?

[gfweb]

Its probably being oxidized. You might add a bit of ascorbate and see what happens.