Chitinase plays significant role in the decomposition of chitin and potentially in the utilization of chitin as a renewable resource. Chitinases contribute to the production of carbon and nitrogen in the ecosystem. Chitinases are split into two broad categories as endo-chitinases and exo-chitinases. Common sources for chitinase production are insects, plants, mammals, bacteria and fungi. Enzymatic hydrolysis of chitin produces great interest in biomedical, industrial and agricultural

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... s. Production of low cost chitinolytic enzymes is significant in chitinous waste recycling as it is useful for the environment protection. In this review, various types of chitinases found in different organisms and its biotechnological applications are discussed.