PEMANFAATAN TUMBUHAN SERAI WANGI (Cymbopogon nardus (L.) RENDLE) SEBAGAI ANTIOKSIDAN ALAMI
Abstrak: The phytochemical
test, brine shrimp lethality test and antioxidant activity test on secondary
metabolits of serai wangi (Cympogon nardus (L.) Rendle) stalk have been
completed. Samples are extracted by masseration method that is concentrated by
using rotary evaporator. The methanol hard extract are then fractioned with
n-hexan and etil n-hexane and ethyl acetate. Based on secondary metabolits
phytochemical test of serai wangi (Cympogon nardus (L.) Rendle) stalk showed
that methanol raw ekstract contains flavonoid, fenol and triterpenoid. n-hexane
fraction extract contain steroid and ethyl Acetat fraction extract contains
flavonoid, fenol and terpenoid. In brine shrimp lethality test, the increase
larvae death data was recorded and processed using SAS Probit Analysis to
determine the Lethal Concentration 50% (LC50) value. The results of this test
showed that the most active fraction is n-hexane fraction with LC50 value of
86,9704 ppm. Based on the antioxidant activity by scavenging activity of DPPH
used spectrophotometry was obtained that Inhibition Concentration 50% (IC50) of
methanol extract is 67,18 ppm, extract of n-hexane fraction is 1.078,41 ppm,
extract of ethyl acetat fraction is 68,96 ppm and vitamin C is 3,05 ppm.
Penulis: Willem Hendrik G,
Erwin, Aman Sentosa Panggabean
Kode Jurnal: jpkimiadd130718
