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Journal : BERITA BIOLOGI

SKRINING BEBERAPA JAMUR ENDOFIT TUMBUHAN DARI PULAU ENGGANO, BENGKULU SEBAGAI ANTIBAKTERI DAN ANTIOKSIDAN [Screening of Plant Endophytic Fungi from Enggano Island, Bengkulu for Antibacterial and Antioxidant Activites] wulansari, dewi; Putra, Aldho Pramana; Ilyas, Muhammad; Praptiwi, Praptiwi; Fathoni, Ahmad; Palupi, Kartika Dyah; Agusta, Andria
BERITA BIOLOGI Vol 15, No 3 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3260.703 KB) | DOI: 10.14203/beritabiologi.v15i3.2259

Abstract

Fungal endophytes have been known as sources for bioactives with high chemical structure variability. This study aimed to screen extracts of some endophytic fungi associated with plants from Enggano Island as antioxidant and antibacterial using thin layer chromatography (TLC) bioautography method. Antibacterial ativity was performed against Escherichia coli and Staphylococcus aureus. Seventeen out of 22 extracts showed growth inhibition activity against both bacteria, while 16 extracts were active as DPPH free radical scavenging agents. Further determination on IC50 value of four prominent extracts revealed that fungal endophytes AK3018-1, FC-1, KC-4, and SO-3 have IC50 value of 85, 84, 704, and 347 ?g/ml, respectively in DPPH radical scavenging method. Extracts of fungal endophytes CR-3, CS-2, and SM-2 showed prominent antibacterial activity among other extracts, indicated by wide clear white zone around the spot. Further evaluation on minimum inhibitory concentration (MIC) of those three extracts by microdilution method showed that CR-3, CS-2, and SM-2 have MICs value of 512, >512, and 64µg/ml, respectively against S. aureus.Fungal endophytes AK3018-1, FC-1, KC-4, SO-3, CR-3, CS-2, and SM-2 were respectively isolated from Dioscorea bulbifera tuber, Fibraurea chloroleuca twig, Knema cinerea twig, Smilax odoratissima stem, Cryptocarya sp. twig, Calophyllum soulattri twig, and Smilaxmacrophylla stem.
EVALUASI ANTIBAKTERI DAN ANTIOKSIDAN EKSTRAK SMILAX spp. DARI PULAU ENGGANO [Evaluation of Antibacterial and Antioxidant of Smilax spp. Extracts Collected from Enggano] Tiwi, Praptiwi; Palupi, Kartika Dyah; Fathoni, Ahmad; Keim, Ary P; Royani, M Fathi; Effendi, Oscar; Agusta, Andria
BERITA BIOLOGI Vol 15, No 3 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3098.315 KB) | DOI: 10.14203/beritabiologi.v15i3.2213

Abstract

Three species of Smilax spp. (Smilax macrophylla, S. odoratissima and S. zeylanica) collected from Enggano island were evaluated for their potential as an antibacterial and antioxidant. Stems and leaves of three species of Smilax spp. were extracted successively with nhexane,chloroform, ethyl acetate and methanol. Antibacterial activity was evaluated by TLC-bioautography against Eschericha. coli InaCC B5 and Staphylococcus. aureus Ina-CC B4. The antioxidant activity was analyzed by DPPH free radical activity by bioautography method. The value of minimum inhibitory concentration (MIC) and IC50 of active extracts were done by serial dilution in 96- well microplate. The results showed that 20 extracts have antioxidant activity, 13 extracts inhibited the growth of S. aureus Ina-CC B4, and 14 extracts inhibited the growth of E. coli Ina-CC B5. MIC values of active extracts against S. aureus Ina-CC B4 were in the range of 128 - > 512 µg / ml, while the values of MIC against E. coli B5 Ina-CC were > 512 µg / ml. IC50 values of extracts that has antioxidant activity were in the range of 184.11-4549.34 mg/L.