Abstract:This Papers researched extraction β-Chitosan from squid cartilage,the experimental grinded squid cartilage to powder,then extraction Chitin at different conditions,Chitin was obtianed after deacetylation.Reviewen alkali cooking time,lye quality score and alkali cooking temperature Which were the factors of degree of deacetylation were reviewed .The results showed that the primary and secondary order of the impact factors was temperature>time>lye quality score.The best operation programmes were 55% of lye quality score,3 hours,140 ℃.And then different conditions were compared.The product was characterized by IR,and compared with the α-Chitosan.
Keywords:Squid cartilage; chitin, chitosan; degree of deacetylation