ACTIVITY - Antilipemic; Antibacterial; Antiinflammatory; Antiallergic; Immunosuppressive; Respiratory-Gen.; Antiasthmatic.    MECHANISM OF ACTION - None given.    EXAMPLE - Bilirubin and hyodeoxycholic paste (0.1 kg) were extracted. The methanol and concentrated sulfuric acid were added 3 times to the extract to dissolve completely and allowed to stand for 10 hours, The sodium hydroxide was added to adjust pH of 7, and then mixture was filtered and vacuum dried at 45 degrees C and obtained ester paste. Acetic anhydride was heated, stirred and refluxed, evaporated in the vacuum degree of 0.08 Mpa at 95 degrees C, recycled the acetic anhydride in water cooling system, and obtained acylated paste. The acylated paste was added to petroleum ether. The mixture was heated, stirred and refluxed for 1 hour, and water layer was removed. The petroleum ether layer was washed with water until the pH value of 5 and insulated at 50 degrees C, heated at 30 degrees C and filtered. The filtrate was added to rotary evaporator at vacuum degree of 0.06 Mpa and temperature of 80 degrees C. The petroleum ether was circulated in the water cooling system, and recycled to obtain extract paste. The paste was crystallized in ethanol (90%), filtered, and vacuum dried at 0.08 Mpa and temperature of 60 degrees C, and obtained primary crystal. The primary crystal was added to petroleum ether, heated to dissolve completely, stewed and cooled for 4 hours, filtered the crystal and vacuum dried at 0.08 Mpa and temperature of 60 degrees C, and obtained secondary crystal. The secondary crystal was added to sodium hydroxide, washed with purified water, heated for 12 hours, cooled to rooms temperature, little purified water was added to dissolve and hydrochloric acid for adjusting pH to 4, filtered, and obtained crude product acid. The crude product was added to ethyl acetate and active carbon (5%), heated and refluxed for 30 minutes, filtered and washed it to the neutral. The filtrate was added to rotary evaporator at vacuum degree of 0.06 MPa, and temperature of 50 degrees C, circulated in water cooling system, recycled, and obtained refined goose acid. The refined product was dried and worked up to give chenodeoxycholic acid.