by-product of oil manufacture, obtained by pressing of seeds of the niger plant (Guizotia abyssinica (Lf) Cass., õlitootmise kõrvalsaadus, mis saadakse õliramtilla Guizotia abyssinica (L. F.) Cass. seemnete pressimisel (HCI-s lahustumatut tuhka maksimaalselt 3,4%)