Ekstrak Bawang Tiwai (Eleutherine Americana Merr) Sebagai Antioksidan Pada Minyak Kelapa

Abstract

Tiwa i onion bulb extract (EBT) contain phenol compounds that be used as an antioxidant ingredients. U t ilizalion tiwai onion bulb extract as an antioxidant is expected to increase t h e value and u tili z ati on t iwai onion bulbs. This rese a rc h was con d ucte d to obtain tiwai onion bulb extrect concentration as antioxidant ingredients of coconut oil. Extraction process is done by adding 96% ethanol solvent /0 onion liwai flour and tnen incorporated into tile glass beaker. allowed to stand for 24 hours and then filtered to obtain a liquid extract. Rendement liwai onion bulb extract solvent 96% ethanol is 10,2%. The average value of total phenol content of onion bulb extract tiwai solvent 96% ethanol is 0 ,043± 0 ,001ppm. Tile liquid extract was t h en per f o rm e d vacuum evaporation and the obtained f u rt er extract ti wai and then put in oven vacuum. Extract obtained is then inserted i n to tne coconut oil, and then analyzed with the parameters of color, odor. proxide number and acid number , wit h storage t ime for 3 months. Based on test result, it is o bt eine d that the concentretstions of tiwai onion bulb extract 100-200 mg/kg was able to maintain storage time of coconut oil until the 3 mont period specified in the study.