ABTS•	2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)
AOC	Antioxidant capacity
AgNPs	Silver nanoparticles
AuNPs	Gold nanoparticles
B-DD	Boron doped diamond
B-GR	Boron-doped graphene
BSA	Bis(trimethylsilyl)acetamide
CB	Carbon Black
CBNPs	Carbon black nanoparticles
CeONPs	Cerium oxide nanoparticle-based
CNTs	Carbon nanotubes
CPE	Carbon paste electrode
CS	Chitosan
CTAC	Cetyltrimethylammonium chloride
CUPRAC	Cupric ion reducing antioxidant capacity
CV	Cyclic Voltammetry
DMF	Dimetylformamide
DMSO	Dimethyl sulfoxide
DPPH•	2,2-Diphenyl-1-picrylhydrazyl
DPV	Differential pulse voltammetry
DPV	Voltammetry
FIA-AD	Flow-injection analysis with amperometric detection
FRAP	Ferric reducing ability of plasma
FTIR	Fourier transform infrared spectroscopy
GCE	Glassy carbon electrode
GEAC	Gallic acid equivalent antioxidant capacity
GR	Graphene
GNR	Graphene nanoribbon
GRO	Graphene oxide
GRQDs	Graphene quantum dots
H	High
IONPs	Iron oxide nanoparticles
L	Lower
Lacc	Laccase
LLE	Liquid–liquid extraction
LOD	Limit of detection
LOQ	Limit of quantification
LSPR	Localized surface plasmon resonance
MAE	Microwave assisted extraction
MNPs	Metal nanoparticles
m-phenol	Mono-phenol
MWCNTs	Multi-walled carbon nanotubes
Nanoceria	Cerium (IV) oxide NPs
N-GR	Nitrogen doped graphene
N-GR	Nitrogen-doped graphene
NM	Nanomaterials
NPs	Nanoparticles
o-diphenol	Ortho-diphenol
ORAC	Oxygen radical absorbance capacity
PANI	Polyaniline
PCs	Polyphenolic compounds
PCA	Principal component analysis
PEDOT	Poly (3,4-ethylenedioxythiophene)
PEI	Polyethylenimine
PLE	Pressurized liquid extraction
PMMA	Polymethyl metacrylate
Polytyr	Polytyrosine
PPO	Polyphenol oxidase
PSS	Poly(styrene sulfonate)
PtNPs	Platinum nanoparticles
PVA	Poly(vinyl alcohol)
QDs	Quantum dots
RhNPs	Rhodium nanoparticles
SCE	Super critical extraction
SLE	Solid-liquid extraction
SPE	Screen printed electrode
SPE	Solid phase extraction
SWCNTs	Single-walled carbon nanotubes
SWV	Square Wave Voltammetry
SWV	Square Wave Voltammetry
TA	Total aglycones
TEAC	Trolox equivalent antioxidant capacity
TEM	Transmission electron microscopy
TG	Total glycosides
T-GR	Thermally reduced graphene
TP	Total Polyphenols
TRAP	Total Reactive Antioxidant Potential
UAE	Ultrasonic assisted extraction