"Aspergillus oryzae"}]} (original) (raw)

Journal of food science and technology, 2018

Abstract

extract was analyzed by reverse phase HPLC for characterization. Among phenolic compounds identified, apigenin was observed to be present. The finding showed an inhibitory effect of apigenin towards Human and S2 α-amylases. Apigenin inhibition towards Human and α-amylase activities was observed to be competitive. IC50 and % inhibition of apigenin for α-amylase were 3.98 and 1.65 fold higher than for Human α-amylase. The inhibition of the described biocatalyst activity was significantly lowered when apigenin was pre-incubated with starch. In addition to the catalytic residues, 44 amino acid residues were involved on α-amylase-apigenin interactions while only 11 amino acid residues were exposed for Human α-amylase-apigenin complex. The binding site of apigenin showed 76 polar contacts for S2 α-amylase against 44 interactions for Human α-amylase. The docking studies confirmed the mode of action of apigenin and strongly suggested a higher inhibitory activity towards fungal amylase whic...

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