dc.contributor.author |
Gustina, Leonyta Dwi |
|
dc.date.accessioned |
2022-01-17T06:44:56Z |
|
dc.date.available |
2022-01-17T06:44:56Z |
|
dc.date.issued |
2021-07 |
|
dc.identifier.other |
wahyu sari yeni |
|
dc.identifier.uri |
https://repository.unri.ac.id/handle/123456789/10406 |
|
dc.description.abstract |
Bruguiera gymnorrhiza is an alternative plant that contains many bioactive compounds
including: steroids, terpenoids, saponins, flavonoids, alkaloids and tannins. The purpose
of this study was to isolate secondary metabolites and to determine toxicity test by
BSLT method. Leave extraction was carried out using ethanol and then fractionated
with n-hexane and ethyl acetate. The ethyl acetate fractionation produced 41 g dark
brown. Crude ethyl acetate extract was separated using liquid vacuum chromatography
and 5 fractions produced. Pale yellow crystals were isolated from two fraction of ethyl
acetate with melting poin of 262-2640C. The crystals were characterized using UV and
FT-IR spectroscopy. UV spectrum of indicated absorption at λmax 214 nm, 266 nm
and 342 nm. The FT-IR absorption spectrum showed absorption peaks at (cm-1) 1177
(C-O),1339 (C-H) metil, 1603 (C=C), 1635 (C=O), dan 3095 (O-H). The result of
toxicity test by BSLT (Brine Shrimps Lethality Test) method on that crude extract was
not active. |
en_US |
dc.description.provenance |
Submitted by wahyu sari yeni (ayoe32@ymail.com) on 2022-01-17T06:44:56Z
No. of bitstreams: 1
Leonyta Dwi Gustina_compressed.pdf: 282906 bytes, checksum: ed5c741840d0d2b1cf2dc43db29a1c3b (MD5) |
en |
dc.description.provenance |
Made available in DSpace on 2022-01-17T06:44:56Z (GMT). No. of bitstreams: 1
Leonyta Dwi Gustina_compressed.pdf: 282906 bytes, checksum: ed5c741840d0d2b1cf2dc43db29a1c3b (MD5)
Previous issue date: 2021-07 |
en |
dc.description.sponsorship |
Dosen Bidang Kimia Organik Jurusan Kimia
Fakultas Matematika dan Ilmu Pengetahuan Alam |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
perpustakaan UR |
en_US |
dc.subject |
bruguiera gymnorrhiza |
en_US |
dc.subject |
flavonoid |
en_US |
dc.subject |
toxicity |
en_US |
dc.title |
ISOLASI METABOLIT SEKUNDER DAN UJI TOKSISITAS EKSTRAK ETIL ASETAT DARI DAUN BAKAU Bruguiera gymorrhiza L. (Rhizoporaceae) |
en_US |
dc.type |
Article |
en_US |
dc.contributor.supervisor |
Muras, Yuharmen |
|