1,2,3,4,6-Penta-O-galloylglucose within Galla Chinensis Inhibits Human LDH-A and Attenuates Cell Proliferation in MDA-MB-231 Breast Cancer Cells

Figure 3

PGG concentration of RGC crude ethanol extract (a) determined by HPLC at 280 nm using external PGG standard (b). Crude extract concentration of PGG was approximately 9.95 ± .34% of weight (Chinese gallnut extract (250 μg/mL) = 24.88 ± 0.85 μg/mL), .

(a) UV/VIS trace

(b) PGG-ESTD-UV/VIS