Iresi bran jade jẹ iyọkuro aso irugbin ti ọgbin gramineous OryzaSativaL, eyiti o ni awọn acids fatty unsaturated, tocopherols, tocotrienols, lipopolysaccharides, okun ti o jẹun, squalene γ- Oryzanol ati awọn nkan ti nṣiṣe lọwọ physiologically miiran.Awọn nkan wọnyi ni awọn iṣẹ pataki ni idilọwọ ọkan eniyan ati awọn arun cerebrovascular, anticancer, imudara ajesara, idinku awọn lipids ẹjẹ, idilọwọ àìrígbẹyà ati isanraju, ati pe awọn ohun elo aise pataki fun ounjẹ ilera, oogun, awọn ohun ikunra ati ile-iṣẹ kemikali.