Antioxidant and Glycemic Regulatory Properties Potential of Different Maturity Stages of Leaf of Ceylon Cinnamon (Cinnamomum zeylanicum Blume) In Vitro

Table 7

Antiamylase activity of different maturity stages (immature, partly mature, and mature) of leaf of Ceylon cinnamon.

Leaf extract	% Inhibition
	Concentration (μg/mL)
	312.5	625	1250	2500
Immature	5.80 ± 1.67	11.89 ± 1.88	15.37 ± 0.82	18.05 ± 0.24
Partly mature	10.22 ± 2.24	11.35 ± 1.76	22.17 ± 2.04	27.81 ± 1.09
Mature	4.97 ± 1.32	11.09 ± 0.49	17.73 ± 4.53	36.62 ± 4.00

Data represented as mean ± SEM (n = 3). Immature leaf, partly mature leaf, and mature leaf r² = 0.96, 0.91, and 0.99, respectively; IC₅₀ acarbose: 113.88 ± 2.54 μg/mL; DCM:M dichloromethane:methanol.