ISOLASI SENYAWA METABOLIT SEKUNDER DARI EKSTRAK DAUN TUMBUHAN JAMBU AIR (Syzygium aqueum)

SARI, MIA TIRTA and Elfita, Elfita and Fatma, Fatma (2022) ISOLASI SENYAWA METABOLIT SEKUNDER DARI EKSTRAK DAUN TUMBUHAN JAMBU AIR (Syzygium aqueum). Undergraduate thesis, Sriwijaya University.

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Abstract

Water guava (ll. a4renm) bas been errtacted by macemtion method ofdry leaf powder in a rou, in n-hexane, ethyl acetate, and methanol solvents. The separation ofthe compounds was carried out on the ethyl acetate ftaction by means of graviq/ column ckomatography. Purification of the compound was caried out by thh layer chomalognphy test with n-hexane:ethyl acetate (9:1, 7:3, 6:4) as eluent to prodltce a siogle spot paltem and ffed the crystals of tl1e column with a combined solvent ofn-hexane:ethyl acetate ( I : i ) . The isolated compound was a minor compound with a white solid of 2.4 mg and identified using I& IH-NMR, and l3C-NMR spectoscopy. From the spectroscopjc data ofisolated compounds and comparative data, therc are carbonyl groups of carboxylic acids, hydroqrl groups, 7 methyl groups (CH3), 7 methiDe groups (CH),8 methylene groups (Cll2), and 1 vinylic group. The isolated pure compound was identified as belonging to the pentacyclic triterpenoid group, namely ursolic acid.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Syzygium aqueum, asam ursolat, triterpenoid, metabolit sekunder
Subjects:	Q Science > QD Chemistry > QD241-441 Organic chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Mia Tirta Sari
Date Deposited:	27 May 2022 01:32
Last Modified:	27 May 2022 01:32
URI:	http://repository.unsri.ac.id/id/eprint/70571

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