Patent ID: 7029883

Claim:
A method of producing a purified Auricularia Auricula Polysaccharide (AP) extract of Auricularia Auricula (AA), comprising the steps of: a. filtering and extracting a hydrated predetermined amount of AA to produce a first pre-extract; b. separately filtering and extracting each of a plurality of additional hydrated predetermined amounts of AA to produce a plurality of additional pre-extracts; c. combining said first pre-extract with said plurality of additional pre-extracts to form a first extract; d. concentrating and suspending said first extract to form a precipitate; e. filtering said precipitate to form a first filtrate; f. refiltering said precipitate to form a second filtrate; g. combining said first filtrate with said second filtrate to obtain a first combined filtrate; h. concentrating and drying said first combined filtrate to form a concentrated extract; i. filtering said concentrated extract to form a third filtrate; j. refiltering said concentrated extract to form a fourth filtrate; k. combining said third filtrate with said fourth filtrate to obtain a second combined filtrate; l. concentrating and drying said second combined filtrate to obtain said purified Auricularia Auricula Polysaccharide extract of Auricularia Auricula.