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Optimum conditions for the precipitation of chitosan oligomers with DP 5-7 in concentrated hydrochloric acid at low temperature

Lee, MY; Var, F; Shin-ya, Y; Kajiuchi, T; Yang, JW (Elsevier Sci LTD, 1999)

Chitosan was partially hydrolysed with 35% hydrochloric acid for 2 h at 80 degrees C and the hydrolysate stored at - 20 degrees C after dilution with water to precipitate higher molecular weight (MW) chitosan oligomers. ...