Delta-tocopherol hluavtaws (E309) yog ib qho antioxidant uas tiv thaiv cov hlwb los ntawm kev puas tsuaj los ntawm kev ua kom oxidation ntawm lipids (rog) thiab tsim cov dawb radicals.
E309 (synthetic delta-tocopherol) muaj nyob rau hauv daim ntawv teev cov khoom noj additives uas tsis muaj daim ntawv tso cai siv rau hauv kev lag luam zaub mov hauv peb lub teb chaws.