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. Author manuscript; available in PMC: 2018 Oct 29.
Published in final edited form as: J Funct Foods. 2016 Mar 31;23:573–579. doi: 10.1016/j.jff.2016.03.009

Fig. 2.

Fig. 2

– Per cent α-glucosidase inhibition per GPE sub-fraction. Enzyme activity was determined by measuring p-nitrophenol release from pNPG at 405 nm. Acarbose (50 µg/mL) is the standard and denoted as Std. C18, HP20, SPE, S1, and S2 stand for reversed-phase C18 column, Diaion resin HP-20 column, solid phase extraction column, silica gel column, and smaller silica gel column, respectively. Bars marked with different superscripts are significantly different (p < 0.05).