Research Article

Antioxidant Activity of Auricularia auricula Polysaccharides with Different Molecular Weights and Cytotoxicity Difference of Polysaccharides Regulated CaOx to HK-2 Cells

Figure 1

Conductometric titration curve for determination of the content of −COOH in AAPs (a) and FT-IR spectra (b) of AAPs.
(a)
(b)