I want to extract glycosaminoglycans using pepsin enzyme, I tried Tris buffer and sodium acetate at pH 1-3, but I want to try a buffer other than these two, thank you for guiding me.
Here is a list of buffers. Choose those which have their pKa close to the pH you want to try (within 0.5 pH units). Tris is not a buffer at acidic pH (pKa is 8.1).