AcOH	Acetic acid
ALP	Alkaline phosphatase activity
ASC	Acid-soluble collagen
BSE	Bovine spongiform encephalopathy
CC	Choline chloride
CP	Bacterial collagenolytic proteases
DES	Deep eutectic solvent
DSC	Differential scanning calorimetry
ECM	Extracellular matrix
EHE	Extrusion-hydro-extraction
EDTA	Ethylenediaminetetraacetic acid
FTIR	Fourier transform infrared spectroscopy
Gly	Glycine
HBA	Hydrogen bond acceptor
HBD	Hydrogen bond donor
HCl	Hydrochloric acid
Hyp	4-Hydroxyproline:
NaOH	Sodium hydroxide
PBS	Phosphate buffer solution
PEF	High-intensity pulsed electric fields
PSC	Pepsin-soluble collagen
SBE	Semi-bionic extraction
SDS-PAGE	Sodium dodecyl sulfate sulfate-polyacrylamide gel electrophoresis
SFE	Supercritical fluid extraction
OA	Oxalic acid