FIELD: chemistry.
SUBSTANCE: invention relates to production of alkaline chitin and its derivatives, chitosan and its derivatives. Method of producing alkaline chitosan, chitin or derivatives thereof with low endotoxin content involves contacting chitosan, chitin, a chitosan derivative or a chitin derivative with an alkaline solution having concentration of 0.01M to 0.2M to obtain a mixture. Mixture is left for a period of less than 12 hours and dried. Also disclosed are products obtained by this method, a method for producing neutral chitosan, a chitosan salt or a chitosan derivative with low endotoxin content, products obtained using said method, use of said chitosan salt for bleeding control.
EFFECT: invention enables to obtain chitosan with low endotoxin content, having corresponding molecular weight with high haemostatic properties.
35 cl, 1 dwg, 1 tbl, 4 ex
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