APS	Alfalfa polysaccharides
EI-MS	Electron ionization mass spectrometry
GalA	Glacturonic acid
GlcA	Glucuronic acid
GPC-RI-MALS	Gel permeation chromatography–refractive index–multiangle laser light scattering
IC	Ion chromatography
MEFs	Mouse embryonic fibroblasts
Mn	Number-average molecular weight
Mw	Weight-average molecular weight
Mz	Z-average molecular weight
nc	nano coulomb (the unit of quantity of electric charge)
Rn	Number-average radius
Rw	Weight-average radius
Rz	Z-average radius
SCFAs	Short-chain fatty acids