Organisms that degrade hydrocarbon-based substances are encapsulated in wax to form organism-containing wax microshells that are used for removing oil-based substances such as oil spills on land and water. The organism is preferably of the genus Candida that produce lipase. The microshell may ...http://www.google.ca/patents/US5807724?utm_source=gb-gplus-sharePatent US5807724 - Degradation of petroleum hydrocarbons with organisms encapsulated in wax