CDL	Ceratophyllum demersum L
AGIs	α-glucosidase inhibitors
RSM	response surface methodology
UAE	ultrasonic-assisted extraction
BBD	Box-Behnken design
TFC	total flavonoid content
TPC	total phenolic content
pNPG	p-nitrophenyl-α-d-glucopyranoside
BPC	base peak chromatogram
ESI	electrospray ionization source
ANOVA	one-way analysis of variance