ZHANG Hong-tao, ZHAO Xiao-liang, FAN Zun-xiao, LUO Cheng, ZHU Li, MAO Jiang-chuan, ZHAN Xiao-bei, MAO Yan-qing
Two water-souble polysaccharides,named LFI and LFII,were isolated from Lentinus edodes by 0. 9%Na Cl and hot water extraction,respectively. Three resins named AB-8,DA201 and JK008 were used to remove the pigments from LFI and LFII,wherein AB-8 was more suitable for removing the pigments with removal rate of 72% and53% from LFI and LFII respectively. The Mw of LFI and LFII was 1. 350 × 106 Da and 2. 771 × 106 Da,the Mn of LFI and LFII was 1. 337 × 106 Da and 2. 693 × 106 Da. IR,13C-NMR and1H-NMR studies indicated that LFI consisted of α-1Man,β-1Glc,α-1Gal,β-1,3-Glc-,α-1,6-Glc-,α-1,4-Glc- and α-1,4,6-Man6- residues,while LFII was found to contain α-1Xyl,α-1Gal,β-1Glc,β-1,3-Glc-,β-1,6-Glc-,α-1,6-Man-,β-1,3,6-Glc,α-1,4,6-Man- and α-1,2,6-Gal- residues.
