Table 2.

Native antioxidant peptides/proteins isolated from plant sources in the last decade.

AntioxidantPeptide/Protein	Plant Source	MW (Da)	IC50 by DPPH (µg/mL)	IC50 by ABTS (µg/mL)	References
GSQ	Allium tuberosum Rottler	290.10	610	40	[28]
G4b	Ginkgo biloba seeds	29,247	100.7	n/d	[53]
QCZDE	Apium graveolens seeds	6500	n/d	158.7	[56]
QCZCM	Apium graveolens seeds	11,390	n/d	193.2	[56]
Gg-AOPI	Gnetum gnemon seeds	30,000	21	10	[30]
Gg-AOPII	Gnetum gnemon seeds	12,000	27	12	[30]
Antioxidant protein from Curcuma comosa	Curcuma comosa Roxb. Rhizomes	18,000	n/d	n/d	[57]
PNP	Phyllanthus nuri leaves	35,000	n/d	n/d	[58]
TCP-III	Terminalia chebula fruit	16,267	291	n/d	[31]
APC	Murraya koenigii leaves	35,000	70	n/d	[29]
GdAPs	Geoffrea decorticans	2000–8000	35.5	95.1	-

Abbreviations: n/d, not determined.