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All Journal Jurnal Natur Indonesia Jurnal Matematika & Sains Jurnal Industri Hasil Perkebunan Jurnal Sains Teh dan Kina PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Molekul: Jurnal Ilmiah Kimia
Yana Maolana Syah
Biochemistry Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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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

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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

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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.
Beberapa Senyawa Fenol dari Tumbuhan Morus macroura Miq. Nunuk H Soekamto; Sjamsul Arifin Achmad; Emilio L Ghisalberti; Norio Aimi; Euis Holisotan Hakim; Yana Maolana Syah
Jurnal Matematika & Sains Vol 8, No 1 (2003)
Publisher : Institut Teknologi Bandung

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Abstract

Three stilbene derivatives, namely lunularin (1), oxyresveratrol (2), and andalasin A (3), together with 2-arylbenzofuran derivative, moracin M (4), coumarin derivative, umbelliferon (5), and β-resolcylaldehyde, were isolated from Morus macroura Miq. (Moraceae), a rare spesies found in West Sumatera and endemic to Indonesia. The structures of all these compounds were elucidated based on physical and 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

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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.
2’,4’-Dihidroksi-3’,5’,6’-Trimetoksi Calkon suatu Senyawa Antitumor dari Kulit Batang Tumbuhan Cryptocarya costata (Lauraceae) Hanapi Usman; Euis Holisotan Hakim; Sjamsul Arifin Achmad; Tjodi Harlim; Muhammad N. Jalaluddin; Yana Maolana Syah; Lia Dewi Juliawati; Lukman Makmur; Mariko Katajima
Jurnal Matematika & Sains Vol 10, No 3 (2005)
Publisher : Institut Teknologi Bandung

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Sifat Listrik Film Tipis SrTiO3 untuk Kapasitor MOS An anti-tumor calcon has been isolated from Criptocarya costata stem bark. The compound was obtained from chloroform fraction fractioned by chromatography technique and recrystalized in n-hexane and ethyl acetate. The compound structure elucidated based on physical and spectroscopic data was 2,4-dihydroxy-3,5,6-trimethoxy calcon. Cytotoxic assay using murine leukemia cell P388 showed positive activity with IC50 value of 3.65 µg/mL.
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

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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

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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

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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

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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

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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.
Co-Authors A.A. Ketut Agung Cahyawan W Achmad Saifuddin Noer Aisyah Aisyah Aisyah Aisyah Debbie Soefie Soefie Dessy Natalia Didin Mujahidin Didin Mujahidin Emilia L Ghisalberti Emilia L. Ghisalberti Emilio L Ghisalberti Eri Bakhtiar Euis Holishotan Hakim Euis Holisotan Hakim Euis Holisotasn Hakim Firdaus, Firdaus Hanapi Usman Haryoto Haryoto I Nyoman Adi Winata Ihsanawati Ihsanawati Ikram M. Said Iqbal M. Choudhary Jalifah Latip Joko Santoso Kholifatu Rosyidah Lia Dewi Juliawati Lia Dewi Juliawati Lia Dewi Juliawaty Lukman Makmur Lukman Makmur M I Choudhary Mariko Katajima Muhammad N. Jalaluddin Muhtadi Muhtadi Nanik Siti Aminah Nila Berghuis Tamaela Nila Berghuis Tamaela, Nila Berghuis Nizar Happyana Nordin Hj Lajis Norio Aimi Noviany Noviany Nunuk H Soekamto Nunuk Hariani Soekamto Purkan Purkan Sahidin Sahidin Siti Zubaidah Sjamsul Arifin Achmad Sjamsul Arifin Achmad Sri Atun Suwandri Suwandri Suwandri Suwandri Tjodi Harlim