Table 6.

Structure and structure-activity-relationship of polysaccharide from Salvia miltiorrhiza.

Type	Extraction method	Monosaccharide composition	Molecular weight/kDa	Structure characteristics	Function	References
Salvia miltiorrhiza	Microwave assisted extraction	Glc: Gal: Fru=1.00: 1.67: 1.12	6.09 kDa	β-D-fruf, α-D-galp, α-D-glcp	Relieve ferroptosis	(103)
Salvia miltiorrhiza	Hot water extraction	Gal: Glc: GalA=15.03: 7.14: 1.00	120.00 kDa	-	Anti-oxidation and anti-tumor	(104)
Salvia miltiorrhiza	Ultrasound-assisted complex enzyme method	Ara: Fru: Man: Glc: Gal=0.37: 0.41: 0.62: 3.21: 5.39	507.00 kDa	β-D-Fruf, β-D-Glcp, α-D-Galp, β-L-Xylp, α-D-manp, α-D-Glcp	Intestinal immunity and anti-oxidation	(105)
Salvia miltiorrhiza	Hot water extraction	Glc: Xyl: Man: Gal=0.34: 0.28: 0.27: 0.11	527.00 kDa	C-O-C and C-O-H	Anti-oxidation	(108)
Salvia miltiorrhiza	Hot water extraction	Ara: Gal: Glu: Rha: GalA=4.79: 8.24: 3.26: 1.00: 6.52	-	-	Immunomodulation	(110)