Chitosan, a deacetylation product of chitin that is found in the shells of many shrimps, crabs, insects, and other arthropods, is used as a coating preservative in eggs and fruits (Shahidi & Abuzaytoun, 2005). Lyso-zymes, a type of stable basic protein found primarily in mamma-lian body fluids and poultry albumen, are used as preservatives in aquatic products and dairy products (Wang, Fan, Hu, & Yuan,
2009).