Extraction of component, other than moisture, by contact with diverse medium:
(under subclass 290) Process or apparatus wherein components or ingredients of tobacco, other than moisture or water, are extracted or absorbed, by contacting the tobacco with a separate and distinct medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
308, for treating tobacco with a particular enzyme.
SEE OR SEARCH CLASS
23, Chemistry: Analytical and Physical Processes,
295, for extraction by a crystallization technique.
435, Chemistry: Molecular Biology and Microbiology, appropriate subclasses for the involvement of fermentation. 546, Organic Compounds,
279.4, for the production of nicotine containing extracts from tobacco.
