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KOMPONEN KIMIA MINYAK ATSIRIDAUN TIGA JENIS PIPERACEAE Jamal, Yuliasri
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.271 KB) | DOI: 10.14203/beritabiologi.v6i3.1210

Abstract

Chemical analysis of leaves essential oil on three Piper species, P. malamiri, P. baccatum and P. majusculum was conducted using gas chromatography and mass spectrometry (GCMS) method.Chromatogram result showed 52, 56 and 47 peaks on leaves essential oil of P.malamiri, P.baccatum and P.majusculum respectively. Based on the peaks,it is known that isocaryofilene is the major, common and as the highest component found in the three essential oils, beside several other major components.
Chemical Compositions and Antibacterial Effect of Essential Oil of Key Lime Leaves (Citrus Aurantifolia Swingle: Rutaceae) Jamal, Yuliasri; Pariwidjayanti, Aris Medta; Agusta, Andria
ANNALES BOGORIENSES Vol 16, No 2 (2012): Annales Bogorienses
Publisher : Research Center for Biotechnology - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3848.842 KB) | DOI: 10.1234/67

Abstract

Steam distillation of essential oil from fresh leaves of Key Lime (Citrus aurantifolia Swingle) gave 0.4% yellow essential oil with distinctive fragrance. Five out of 40 components of the essential oil were identified as the major components with content above 5%, they were geranial (10.3%), limonene (10.2%), neral (8.94%), caryophyllene (5.72%), and citronellal (5.41%). The essential oil was active against four bacterial test, Bacillus subtilis NBRC 3134, Staphylococcus aureus NBRC 14276, Micrococcus luteus NBRC 14218, and Escherecia coli NBRC 14237. B. Subtilis was the most sensitive bacterium with the widest inhibition area at 50% concentration of essential oil. Minimum Inhibition Concentration (MIC) value of essential oil against B. Subtilis was 0.125%.
FITOKIMIA DAN FARMAKOLOGI CENDANA (Santalum album L.) Agusta, Andria; Jamal, Yuliasri
BERITA BIOLOGI Vol 5, No 5 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (508.015 KB) | DOI: 10.14203/beritabiologi.v5i5.1463

Abstract

Dalam peradaban timur, cendana telah digunakan secara tradisional semenjak 4000 tahun yang Ialu. Minyak atsiri yang diperoleh dari kayu cendana digunakan dalam upacara keagamaan dan sebagai obat-obatan. Dalam kebudayaan barat, cendana hanya digunakan sebagai bahan parfum kelas utama. Bam setelah tahun 1920-an, sejalan dengan perkembangan aromaterapi, bangsa barat mulai memanfaatkan cendana sebagai bahan obat-obatan. Minyak atsiri adalah substansi kimia yang membuat cendana menjadi berharga, baik secara ekonomi, bahan obat dan bahan parfum. Setiap bagian tumbuhan cendana memiliki kandungan minyak atsiri yang bervariasi. Bagian akar memiliki kandungan minyak tertinggi, yaitu 10 %, kemudian diikuti oleh bagian teras batang (4-8 %) dan ranting (2-4 %). Delapan puluh sampai 90% dari minyak cendana terdiri dari senyawa santalol dengan isomer a-santalol dan p-santalol sebagai komponen utama. Dalam perdagangan intemasional, minyak cendana kelas satu haruslah mengandung santalol minimal 90% dari kandungan total minyaknya. Dalam aromaterapi minyak cendana dikenal sebagai salah satu bahan alami yang berkhasiat sebagai sedatif, relaksasi dan mengatasi kasus insomnia serta serangan asma. Laporan terakhir juga menyebutkan bahwa minyak cendana bersifat menghalangi efek karsinogenik dari zat kimia. Alpha-santalol sebagai komponen utama minyak cendana dapat mengurangi kasus papiloma (tumor kulit) sebesar 32 %.
KERAGAMAN JENIS JAMUR ENDOFIT PADA PANDAN WANGI (PANDANUS AMARYLIFOLIUS) DAN AKTIVITAS ANTIJAMUR METABOLIT YANG DIPRODUKSINYA Jamal, Yuliasri; Ilyas, Muhamad; Kanti, Atit; Agusta, Andria
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 14, No 2 (2009): June 2009
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.303 KB) | DOI: 10.24002/biota.v14i2.2685

Abstract

The whole nine isolates of endophytic fungi have been obtained from leaves and roots of pandan wangi (Pandanus amarylifolius) collected from Bogor Botanical Garden. Identification of the fungi isolates were conducted based on their morphological characteristics, and revealed that one fungus belongs to the genus of Fusarium, one of Dreschlera, and 7 fungi isolates belong to Coelomycetes. The ethyl acetate extract of the fungi cultures in PDB and GYP media showed a diverse secondary metabolite profiles. Ethyl acetate extract derived from the culture of PWA-2 fungus in GYP medium showed an antifungal activity against Saccharomyces cerevisiae, but not to Fusarium oxysporum and Candida tropicalis. The GC-MS analysis of the active extract showed eugenol as an active component.
Produksi Metabolit Utama (-)-Citrinin, pada Kultur Jamur Endofit Penicillium sp dari Tanaman Teh Agusta, Andria; Jamal, Yuliasri
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 13, No 3 (2008): October 2008
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (104.756 KB) | DOI: 10.24002/biota.v13i3.2570

Abstract

Endophytic fungi have been recognized as source of broad range biological active metabolites with high chemical structure diversity. The purpose of this research is to isolate and characterize major metabolite produce by the endophytic fungi Penicillium sp isolated from a tea plant. Cultivation of endophytic fungus Penicillium sp (AB2245443) in liquid medium PDB on a rotary shaker at 100 rpm, temperature 25 – 30oC for 7 days, produced a yellow metabolite. Separation of metabolite through chromatography technique and followed by chemical structure elucidation based on MS, IR, NMR spectra and published data showed that the yellow metabolite is (-)-citrinin.
KANDUNGAN SENYAWA ALKALOIDA, TANIN SERTA NILAI NUTRISI BEBERAPA JENIS HIJAUAN YANG DIBERIKAN PADATERNAK DL PULAU TIMOR (THE CONTENTS OF ALKALOID, TANNIN AND ITS NUTRITIONAL- VALUES FROM SEVERAL BROWSE FED TO LIVESTOCK IN TIMOR ISLAND) Jamal, Yuliasri; Semiadi, Gono
BERITA BIOLOGI Vol 4, No 1 (1997)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i1.1288

Abstract

A study was conducted in determining the contents of alkaloid, tannin and nutritional Values from six browses fed to fattening cattle in Timor island. The samples Were gmelina (Gmelina arborea Roxb.),pates/lamtoro (Leucaena leucocephala [Lamk.J De Wit),daun kupu-kupu (Bauhinia malabarica Roxb.), gala-galaAuri (Sesbania grandiflora [Li Pers.l gamal (Gliriddia sep/um [lick] Steud.).and kabesak (Acacialeucoohloea Willd.).Samples were collected during wet and dry seasons.Results showed that total number of alkaloid compounds varied from 14 to 30.There was an increase in concentration for alkaloid and tannin from Wet to dry season, however the concentrations were low (< 1%).The increase in the concentrations between seasons Were ranged from 20% to 32096.Nutritional values of the browse during wet season were considered high, however there is a need in evaluating the nutritional values of the browses during dry season as well.
PENGARUH PENGERINGAN TERHADAP KANDUNGAN LEMAK CABE BESAR (CAPSICUM ANNUUM L.) JAMAL, YULIASRI; PANGGABEAN, G.
BERITA BIOLOGI Vol 3, No 8 (1988)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i8.1303

Abstract

YULIASRI JAMAL&G. PANGGABEAN. 1988 The effect of drying on the fat content of th chillies (Capsicum annuum L.). Berita Biologi 3(8) 374 - 376. The treating of chillies on various temperatures were studied in order to know their effect on the fat content.The chillies were dried in the refrigerator (12°C),in the room at ambient temperature (25°C ±2°C), in the sun shine (35°C ± 2°C) in the oven at various temperatures such as 40°C 50°C, 60°C, 70°C, 80°C, 90°C and 100°C.During the investigation were used cabe keriting and cabe besar biasa & it were obtained from the local market.The results of the observation that the highest fat content were found on the cabe keriting a 70 C drying as well as room temperature.The fat content of terated chillies, however, in the oven at 50°C, 60°C were similar 14%.Meanwhile,the dried chillies as the result on the sun shine was 3,5% fat content. The fat content of cabe besar biasa was significantly high at 70°C. The fat content of the chillies decreased rapidly on the treating in the sun shine.The chillies both cabe keriting and cabe besar biasa which were dried more than 60°C & in the sun shine, the pulp turned to brownish red, whereas the dried chillies in the refrigerator, at room temperature, 40°C, 50°C and 60°C the colour of the pulp were similar to the fresh fruits.
ANALISIS KOMPONEN KIMIA DAUN WATI {PIPER METHYSTICUM FORST. F) Agusta, Andria; Jamal, Yuliasri; Chairul, Chairul
BERITA BIOLOGI Vol 4, No 2&3 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i2&3.1276

Abstract

Wati(Piper methysticum Forst.f.)leaves has been used as narcotic in some parts of Irian Jaya since longtime ago. The GCMS analysis of wati leaves organic extracts(hexane,chloroform, methanol)has detected 48 components consisted alkanes,oxygenated hydrocarbons, fatty acid, steroids and alkaloids,including 5 major components, i.e. dihydro kawain,anisol p-undecyl, 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-on, levulinic acid and one of unknown component.Forty-three other minor components will be discussed.