Antioxidant and α-Glucosidase Inhibitory Activities Guided Isolation and Identification of Components from Mango Seed Kernel

Table 3

Antioxidant and α-glucosidase inhibitory activities of the isolated compounds from mango seed kernel.

Compounds	DPPH assay^B	α-Glucosidase inhibitory^C
	IC50^A (μM)	IC50^A (μM)	Inhibition mode^D	(nM)^E
1	^j	^e	Noncompetitive
2	^i	^e	Competitive
3	^i	^c	—	—
4	^d	>500	—	—
5	^h	>500	—	—
6	^f	^b	—	—
7	^f	^a	—	—
9	>500	>500	—	—
10	^f	>500	—	—
11	^b	>500	—	—
12	^g	>500	—	—
13	^c	^d	—	—
16	^e	>500	—	—
Ascorbic acid^F	^a	—	—	—
Acarbose^G	—	^e	—	—

^AData were represented as the , 6. Values followed by different letters are significantly different (). ^BThe test concentrations ranged from 15.625 to 500 μM. ^CThe test concentrations ranged from 125 to 2000 μM. ^DDetermined by Lineweaver-Burk plots. ^EDetermined by Dixon plots. ^FPositive control (DPPH assay). ^GPositive control (α-glucosidase inhibitory effect).