In vitro antidiabetic activity:
The BLR extract displayed antidiabetic action with affection to inhibition of α-amylase and α-glucosidase proximate to that perceived using the ordinary antidiabetic drug acarbose. The concentration of acarbose was used in identical to concentration of root bark extract. i.e 50, 100, 150, 200, 250 (μg/mL) (figure 2a and 2b).