Claim Missing Document
Check
Articles

Found 19 Documents
Search

Beberapa Senyawa Stilbenoid Dari Kulit Batang Shorea Leprosula Miq. I Nyoman Adi Winata; Yana Maolana Syah; Sjamsul Arifin Achmad; Euis Holisotan Hakim; Lia Dewi Juliawaty; Emilia L Ghisalberti; M I Choudhary
Jurnal Matematika & Sains Vol 8, No 1 (2003)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Three stilbenoid compounds, hopeaphenol (1), laevifonol (2), dan (+)-α-viniferin (3) had been isolated from acetone extract of the stem bark of Shorea leprosula Miq. The molecular structures of (1), (2), and (3) was determined based on spectroscopic data, including UV, IR, 1H NMR, and 13C NMR, and comparison with that reported in the literature.
Laevifonol, Diptoindonesin A, dan Ampelopsin A, Tiga Dimer Stilbenoid dari Kulit Batang Shorea seminis V. Sl. (Dipterocarpaceae) Nanik Siti Aminah; Sjamsul Arifin Achmad; Euis Holisotasn Hakim; Yana Maolana Syah; Lia Dewi Juliawaty; Emilia L. Ghisalberti
Jurnal Matematika & Sains Vol 8, No 1 (2003)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Laevifonol (1), a dimer stilbenoid, namely a hybrid between ε-viniferin and ascorbic acid had been isolated from ethyl acetate extract of the stem bark of Shorea seminis V.Sl. The structure of this compound was determined on the basis of spectroscopic data.
Stenofilol B dan Hopeafenol, Dua Oligomer Stilbenoid dari Kayu Batang Sri Atun; Sjamsul Arifin Achmad; Euis Holisotan Hakim; Yana Maolana Syah; Emilio L Ghisalberti; Lia Dewi Juliawaty
Jurnal Matematika & Sains Vol 8, No 1 (2003)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Two oligostilbenoid, namely stenophyllol B (1) and hopeaphenol (2) had been isolated from the stem bark of Vatica umbonata Burck (Dipterocarpaceae). The structure of both compounds were elucidated based on spectroscopic data. Both compounds exhibited strong toxicity againts murine leucaemia cell P-388 with IC50 : 8,5 μg/ml and 2,9 μg/ml, respectively.
Tiga Senyawa Oligostilbenoid dari Kulit Batang Dipterocarpus retusus Blume (Dipterocarpaceae) Muhtadi Muhtadi; Euis Holisotan Hakim; Yana Maolana Syah; Lia Dewi Juliawaty; Sjamsul Arifin Achmad; Ikram M. Said; Jalifah Latip
Jurnal Matematika & Sains Vol 10, No 4 (2005)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Three oligostilbenoids, (-)-ε-viniferin, (-)-α-viniferin and (-)-vaticanol A, together with two derivative coumarin compounds, scopoletin and (-)-bergenin, were isolated from acetone extracts of the tree bark of Dipterocarpus retusus Blume. The chemical structure of the isolates were established based on spectroscopic data, UV, IR, 1H-NMR, 13C-NMR, and by comparison with the related compounds. (-)-ε-Viniferin, (-)-α-viniferin and (-)-vaticanol A showed cytotoxic activity against murine leukaemia P-388 cells with their IC50 values were 7,8; 17,5 and 27,0 µg/mL, respectively.
Senyawa-senyawa Oligomer Resveratrol dari Kulit Batang Shorea brunnescens (Dipterocarpaceae) Haryoto Haryoto; Yana Maolana Syah; Lia Dewi Juliawaty; Sjamsul Arifin Achmad; Jalifah Latip; Euis Holisotan Hakim
Jurnal Matematika & Sains Vol 11, No 3 (2006)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Six resveratrol oligomers, namely (-)- ε-viniferin (1), (-)-laevifonol (2), (-)-vaticanol B (3), (-)-hemsleyanol D (4), (+)-isohopeaphenol (5), and (-)-hopeaphenol (6) have been isolated from the acetone extract of the stem bark of Shorea brunnescens. The structure determination of these compounds were based on spectroscopic data (UV, IR, 1H NMR), and compared with literature data. The cytotoxicity of isolated compounds against murine leukemia P-388 cells showed the IC50 values as 18.1, 23.2, 41.9, 12.3, 39.7, and 5.5 µM, respectively.
Dua Flavonoid Tergeranilasi dari Daun Sukun (Artocarpus altilis) Yana Maolana Syah; Sjamsul Arifin Achmad; Eri Bakhtiar; Euis Holisotan Hakim; Lia Dewi Juliawaty; Jalifah Latip
Jurnal Matematika & Sains Vol 11, No 3 (2006)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Two geranylated flavonoid derivatives, namely 2-geranyl-2,4,3,4-tetrahydroxydihydrochalcone (1) and 8-geranyl-4,5,7-trihydroxy-flavanone (2), had been isolated from methanol extract of the leaves of sukun (Artocarpus altilis). The structures of the two compounds were determined based on UV, IR, 1H NMR and 13C NMR spectra, and by comparing with the previously reported data. The presence of these two compounds in A. altilis indicated that the leaves of Artocarpus plants tend to produce more simple flavonoids.  
Oligomer Resveratrol dari Kulit Batang Shorea assamica Dyer (Dipterocarpaceae) dan Sitotoksitasnya Sahidin Sahidin; Euis Holisotan Hakim; Yana Maolana Syah; Lia Dewi Juliawaty; Sjamsul Arifin Achmad; Nordin Hj Lajis
Jurnal Matematika & Sains Vol 12, No 3 (2007)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Four resveratrol oligomers which consist of two resveratrol trimers, i.e., vaticanol A (1) and α-viniferin (2), and two resveratrol tetramers, i.e., vaticanol B (3), and isohopeafenol (4) have been isolated from acetone extract of the stem bark of Shorea assamica Dyer. The elucidations on the structure of these four compounds were based on the spectroscopic data, including UV, IR, 1-D and 2D NMR spectra, and comparison with related data reported previously. Cytotoxicity of the isolated compounds against murine leukemia P-388 cells exhibited that vaticanol A (1), α-viniferin (2), vaticanol B (3) dan isohopeaphenol (4) had IC50 of 27.0, 17.5, 46.4, and 36.0 ppm, respectively. The results showed that cytotoxicity of resveratrol trimers were relatively higher than resveratrol tetramers.
Beberapa Oligomer Stilbenoid dari Tumbuhan Shorea multiflora Burck Noviany Noviany; Euis Holisotan Hakim; Sjamsul Arifin Achmad; Yana Maolana Syah; Lia Dewi Juliawaty; Norio Aimi; Emilio L Ghisalberti; Iqbal M. Choudhary
Jurnal Matematika & Sains Vol 8, No 3 (2003)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Two dimers of stilbenoids, (-)-balanocarpol (4), and (-)-ampelopsin A (5), along with a tetramer (-)-hopeaphenol (6) were isolated from the stem bark of Shorea multiflora Burck (Dipterocarpaceae), locally known as Meranti. Their structures were determined by physical and UV, IR, 1H-NMR, and 13C-NMR spectroscopic data.
Senyawa Morusin dari Tumbuhan Murbei Hitam (Morus nigra) Ferlinahayati Ferlinahayati; Euis Holisotan Hakim; Yana Maolana Syah; Lia Dewi Juliawaty
Jurnal Penelitian Sains Vol 15, No 2 (2012)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (584.537 KB) | DOI: 10.56064/jps.v15i2.98

Abstract

Tumbuhan murbei hitam merupakan salah satu spesies dari genus Morus. Tumbuhan dari genus ini telah dilaporkan kaya akan senyawa turunan fenol seperti flavonoid, 2-arilbenzofuran dan stilben. Dalam rangka pencarian senyawa turunan fenol dari tumbuhan murbei Indonesia maka telah berhasil diisolasi suatu senyawa flavon terprenilasi yaitu morusin dari ekstrak metanol kayu batang murbei hitam (M. nigra). Struktur senyawa tersebut telah ditetapkan berdasarkan data-data spektroskopi yang meliputi spektrum UV dan IR serta membandingkan KLTnya dengan senyawa morusin standar.
A Cytotoxic Flavanone from The Pod Peels of Theprosia vogelii Hook.f. Valentina Adimurti Kusumaningtyas; Nia Sri Hardianti; Melina Melina; Lia Dewi Juliawaty; Yana Maolana Syah
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 6, No. 2, November 2020
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v6i2.17551

Abstract

Tephrosia vogelii Hook.f. is a species of the family Fabaceae (Leguminoceae). These plants are termed ″Polong-polongan″ in Indonesia, and are known to contain active flavonoid groups. Previous studies have shown the isolation of one known flavanone: isolonchocarpin from methanol extract, and the structure obtained was established based on chemical evidence as well as spectroscopic methods, including NMR, and also by a comparison with published data. This research is aimed at evaluating the cytotoxic property of methanol extract against larvae of Arthemia salina Leach, using the Brine Shrimp Lethality Test (BSLT) method. The results show potent cytotoxicity at LC50 of 41.40 ppm.