Evaluation of the Efficiency of Ethanol Precipitation and Ultrafiltration on the Purification and Characteristics of Exopolysaccharides Produced by Three Lactic Acid Bacteria

Table 4

Molecular weight (Mw), molecular number (Mn), and polydispersity index of EPSs extracted from the three studied stains.

Purification method	Strains	Mw (kDa)	Mn (kDa)	Polydispersity Index (Mw/Mn)	Mass recovery ()
EPS-ETOH	Lc. lactis SLT10	62.4±2.94	19.3±2.07	3.231±0.47	37.3
	Lb. plantarum C7	33.7±2.89	8.5±3.44	3.968±1.64	46.0
	Ln. mesenteroides B3	-	-	-	-
EPS-UF	Lc. lactis SLT10	51.5±1.75	12.3±1.38	4.178±0.49	54.6
	Lb. plantarum C7	11.6±1.83	2.1±0.95	5.586±2.66	53.5
	Ln. mesenteroides B3	18.6±2.21	8.4±1.52	2.204±0.407	46.1