Ox bile extract powder, the product after filtration and drying of the ox bile, is a mixture of conjugated bile acids (cholic acid, deoxycholic acid, taurocholic acid, and glycocholic acid). This powder is specially developed for the pharmaceutical industry and is prepared by a low-temperature dehydration process to ensure a uniform product. Other natural ingredients including bile salts, pigment cholesterol, mucin, etc. remain in the final product to keep the native appearance and flavor that are welcomed in food processing.