Glucose adsorption and α-amylase activity inhibition mechanism of insoluble dietary fiber: Comparison of structural and microrheological properties of three different modified coconut residue fibers

• Glucose adsorption capacity, GDRI and amylase inhibition of PE-IDF were improved. • Microrheology monitored the molecular interactions during α-amylase inhibition. • Modified coconut residue IDF forms transient network with α-amylase.