Conclusion
The efficiency of chitin extraction from silkworm chrysalides and chitosan production by deacetylation of chitin were investigated. The yield of chitin extraction was low in both methods investigated. However, although the low yields, the final products using a closed reactor were of high purity chitin and high purity and porous chitosan. The average yield of chitosan production by chitin deacetylation (% DD) was 83%.