Hallo,
I wanna ask, what kind of standard should I use for determining the total phenolic content (TPC) if I don't know the predominant phenolic compound in my sample? the standard that I know are tannic acid and gallic acid, which one is better?
Gallic is predominantly used, more quantitation!
The standard should be Gallic Acid.
Results will then be expressed in mg GAE/g DM (mg Gallic Acid Equivalent per g of Dry Matter).
Best!
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