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All Journal VALENSI International Journal of Renewable Energy Development JURNAL KIMIA SAINS DAN APLIKASI Jurnal Ilmu Dasar Jurnal Sains Materi Indonesia Alchemy : Journal of Chemistry Jurnal Matematika & Sains Jurnal Ikatan Alumni Fisika Universitas Negeri Medan Jurnal Penelitian Sains Chimica et Natura Acta ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Ilmu Kefarmasian Indonesia PROFICIO: Jurnal Pengabdian Masyarakat CHEDS: Journal of Chemistry, Education, and Science Jurnal Ilmiah Berkala Sains dan Terapan Kimia Jurnal Akademika Kimia IPER (Indonesian Physics Education Research) al Kimiya : Jurnal Ilmu Kimia dan Terapan Jurnal Akademika Kimia Journal of Tropical Pharmacy and Chemistry Kimia Padjadjaran

Husein Hernadi Bahti

Departemen Kimia, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km.21, Jatinangor, Sumedang 45363

Author-ID : 240030

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Aplikasi Desain Eksperimen Plackett-Burman dan Response Surface Methodology Box-Behnken pada Produksi Senyawa Pengontras Magnetic Resonance Imaging Gadolinium Dietilentriaminpentaasetat-Folat Retna Putri Fauzia; Abdul Mutalib; Ukun M.S. Soedjanaatmadja; Anni Anggraeni; Muhammad Yusuf; Husein H. Bahti
Chimica et Natura Acta Vol 5, No 1 (2017)
Publisher : Departemen Kimia

Desain Plackett-Burman digunakan untuk menyeleksi variabel yang memiliki pengaruh utama dalam produksi Gadolinium Dietilentriaminpentaasetat-Folat (Gd-DTPA-Folat) sebagai senyawa pengontras Magnetic Resonance Imaging (MRI). Tujuh variabel seperti rasio mol Gadolinium (Gd) dan ligan Dietilentriaminpentaasetat-Folat (DTPA-Folat), suhu, laju pengadukan, pH, waktu reaksi dan volume pelarut diseleksi dalam proses produksi. Faktor dummy yang tidak memiliki pengaruh secara kimia ditambahkan juga dalam eksperimen. Dari ketujuh variabel, rasio mol Gd dan DTPA-Folat, laju pengadukan dan volume pelarut memiliki pengaruh yang positif terhadap persentase hasil rendemen Gd-DTPA-Folat. Tahapan selanjutnya adalah mengetahui interaksi antara faktor-faktor yang berpengaruh positif dalam eksperimen dan menghasilkan respon optimum untuk keseluruhan variabel menggunakan Response Surface Methodology Box-Behnken. Pendekatan statistik dalam studi untuk eksperimen desain menggunakan Software Design Expert 9.0.6.2. Kesimpulan dalam hasil penelitian adalah bahwa kondisi reaksi optimum dalam produksi Gd-DTPA-Folat, yaitu rasio mol Gd dan DTPA-Folat 10:1, laju pengadukan 500 RPM dan volume pelarut sebanyak 20 mL (untuk 2,5 x 10-4 mmol ligan). Prediksi hasil rendemen Gd-DTPA-Folat pada kondisi optimum adalah 87,3296%.

PEMBENTUKAN KOKRISTALANTARAKALSIUM ATORVASTATIN DENGAN ISONIKOTINAMID DAN KARAKTERISASINYA Dolih Gozali; Husein H. Bahti; Sundani N. Soewandhi; Marline Abdassah
Jurnal Sains Materi Indonesia Vol 15, No 2: JANUARI 2014
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

PEMBENTUKAN KOKRISTALANTARAKALSIUM ATORVASTATIN DENGAN ISONIKOTINAMID DAN KARAKTERISASINYA. Penelitian ini bertujuan untuk meningkatkan kelarutan dan laju pelarutan atorvastatin dengan menggunakan metode kokristalisasi. Proses kokristalisasi dilakukan dengan metode solvent evaporation, solvent-drop grinding pada atorvastatin dan koformer (isonikotinamid) masing-masing dengan perbandingan 1:1 (satu mol atorvastatin dengan satu mol isonikotinamid digerus selama 15 menit sambil ditambahkan beberapa tetes metanol. Penambahan methanol berfungsi untuk mempercepat pembentukan kokristal. Kokristal dikarakterisasi menggunakan difraktometer sinar-x,mikroskop polarisasi, Scanning Electron Microscope (SEM), spektrometer infra merah dan Differential Scanning Calorimeter (DSC). Difraktogram dari kokristal menunjukkan intensitas puncak yang lebih rendah dibandingkan atorvastatin standar yang menunjukan telah terbentuk habit kristal baru. Hasil spektrometer infra merah, menunjukkan tidak adanya interaksi kimiawi dan perubahan struktur saat dimodifikasi menjadi kokristal. Thermogram DSC menunjukkan adanya perubahan titik leleh berbeda yang menandai adanya bentuk kristalin baru. Demikian juga pengamatan di bawah mikroskop polarisasi dan SEM menunjukkan bentuk kristal yang relatif baru dibandingkan dengan atorvastatin murninya. Hasil uji kelarutan dan laju pelarutan kokristal atorvastatin-isonikotinamida menunjukkan peningkatan dibandingkan dengan kelarutan dan laju pelarutan atorvastatin sendiri.

Antioxidant Isosantosimol from Garcinia griffithii Stem Bark Elfita Elfita; Supriyatna Supriyatna; Husein H. Bahti; Dachariyanus Dachariyanus
Jurnal ILMU DASAR Vol 9 No 2 (2008)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.764 KB)

A polyisoprenylated benzophenone, isosantosimol had been isolated from the stem bark of Garcinia griffithii T. Anders. The structure of these compound was determined on the basis of spectroscopic data including UV, IR, 1H NMR, 13C NMR, HMQC, HMBC and COSY, as well as by direct comparison with those of reported data. The antioxidant activity of this compound was observed using radical scavenging 1,1-diphenyl-2-picryl hydrazyl (DPPH) model systems.

Tetraoksigenasi Santon dari Kulit Batang Garcinia nigrolineata Tetraoxygenated Xanthone from The Stem Bark of Garcinia nigrolineata Muharni Muharni; Supriyatna Supriyatna; Husein Bahti; Dachrianus Dachrianus
Jurnal ILMU DASAR Vol 10 No 1 (2009)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (191.756 KB)

A tetraoxygenated xanthone, 1,7-dihidroxy-3-methoxy-4-(3methylbut-2-enyl),6’,6’ –dimethylpyrano (2’ , 3’ : 5, 6) xanthone had been isolated from the ethyl acetate extract of the stem bark of Garcinia nigrolineata Planch Ex T. Anders. The structure of these compounds were determined on the basis of spectroscopic NMR 1D and 2D.

Studi Hubungan Struktur dan Aktivitas Senyawa Antioksidan dari Kulit Batang Kandis Gajah (Garcinia griffithii T. Anders) ELFITA ELFITA; DACHRIYANUS DACHRIYANUS; SUPRIYATNA SUPRIYATNA; HUSEIN H. BAHTI
JURNAL ILMU KEFARMASIAN INDONESIA Vol 9 No 1 (2011): JIFI
Publisher : Fakultas Farmasi Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1347.253 KB)

Four xanthones and two benzophenones from the stem bark of kandis gajah (Garcinia griffithii) by extraction and chromatographic methods have been isolated. The six compounds were determined as: 1,7-dihydroxyxanthone (1), 1,6,7-trihydroxyxanthone (2), 1,6-dihydroxy-3-methoxy-4,7-di-(3-methylbut-2-enyl)xanthone (3), 1,5-dihydroxy-3,6-di-methoxy-2,7-di-(-3-methylbut-2-enyl)xanthone (4), guttipherone I (5), and isoxanthochymol (6). All of the isolated compounds were submitted to antioxidant activity assay using three methods: (i) free radical scavenging method, (ii) xanthine-xanthine oxidase (XO) method, and (iii) nitroblue tetrazolium xanthine oxidase (NBT/ XO). Guttipherone I (5) and isoxanthochymol (6) have strong antioxidant activity (IC50 ≤10.2 µg/mL), 1,6,7-trihydroxyxanthone (2) and 1,6-dihydroxy-3-methoxy-4,7-di-(3-methylbut-2-enyl)xanthone (3) as active compounds (IC50 ≤ 100 µg/mL), while 1,7-dihydroxyxanthone (1) and 1,5-dihydroxy-3,6-dimethoxy-2,7-di-(3-methylbut-2-enyl)xanthone (4) were inactive (IC50 > 100 µg/mL). Base on the data, antioxidant activity of isolated compounds was inhuenced by dihydroxyl groups at ortho position, number of hydroxyl group, and hydroxyl group at para position to C carbonyl at heterocyclic.

PHENOLIC COMPOUND FROM THE STEM BARK OF MANGGIS HUTAN (Garcinia bancana Miq.) AND THEIR ANTIOXIDANT ACTIVITY Muharni Muharni; Supriyatna Supriyatna; Husein H. Bahti; Dachriyanus Dachriyanus
Indonesian Journal of Chemistry Vol 9, No 2 (2009)
Publisher : Universitas Gadjah Mada

A phenolic compoud, (-)-epicatechin, was isolated from the stem bark of Garcinia bancana. The structure of this compound was determined base on spectroscopic data such as including UV, IR, 1-D, 2-D NMR, and comparison with the reported data. Biological activity of this compound at free radical scavenging activity by 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) and inhibitory xanthine oxidase(XO) activity showed that (-)- epicathechin active at two methods with IC50 value 8.1 and 8.6 mg/mL respectively.

A XANTHONE FROM THE STEM BARK OF MANGGIS HUTAN (Garcinia bancana) Muharni Muharni; Dachriyanus Dachriyanus; Husein H. Bahti; Supriyatna Supriyatna
Indonesian Journal of Chemistry Vol 7, No 3 (2007)
Publisher : Universitas Gadjah Mada

A xanthone, 1,5-dihidroxy-3,6-dimethoxy-2,7-bis-(3-methylbutenyl)xanthone had been isolated from the stem bark of Garcinia bancana Miq. The structure of this compound was elucidated by analysis of spectroscopic data, especially using 1D and 2D NMR spectroscopic data.

A TRITERPENOID SAPONIN FROM SEEDS OF KOLOWE (Chydenanthus excelsus) Laode Rijai; Supriyatna Sutardjo; Husein Hernandi Bahti; Unang Supratman; Rymond J. Rumampuk; W.C. Taylor
Indonesian Journal of Chemistry Vol 4, No 3 (2004)
Publisher : Universitas Gadjah Mada

A triterpenoid saponin have been isolated from n-butanol fraction of the seeds of kolowe (Chydenanthus excelsus). The structure was determined as 3-O-[β-D-glucopyranosyl(1→3)-β-D-xylopyranosyl(1→3)- β - D-glucuronopyranosyloxy]- 22α -O-(2-methylbutiroyloxyolean-12-en-15α,16α,28-tri-hydroxy. Structure elucidation was accomplished by NMR (HMBC, HMQC/HSQC, ROE, ROESY, TOCSY) methods, ESIMS, and IR spectroscopic.

CHEMICAL CONSTITUENTS FROM THE STEM BARK OF Alangium kurzi, Craib Sofyan M Nur; Soetijoso Soemitro; Husein Hernandi Bahti; Ponis Tarigan; Yue Mao Shen; Rymond J Rumampuk
Indonesian Journal of Chemistry Vol 1, No 3 (2001)
Publisher : Universitas Gadjah Mada

Three new chemical constituents have been isolated from the stem bark of Alangium kurzii Craib. The structures were respectively determined to be 4-cyclohexene-1,2,3-triol 1, 3-β-stigmast-5-en-3-ol (β-sitosterol 2), and 3-O-β-D-glucopyranosyl-stigmast-5-ene (daucosterol 3). These compounds are preliminary isolated from this plant.

Selection of the Parameters in the Synthesis of Ethylenediamine-Folate Using the Plackett Burman Design Erianti Siska Purnamasari; Linda Septiana; Ari Hardianto; Ukun Mochammad Syukur Soedjanaatmadja; Anni Anggraeni; Husein Hernadi Bahti
Indonesian Journal of Chemistry Vol 22, No 3 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.68313

This study is concerned with synthesizing ethylenediamine-folate (EDA-Folate), which will then be used as a precursor in synthesizing Gd-PEG-DOTA-Folate, a novel targeted-contrast agent for the diagnosis of cancer, employing the Magnetic Resonance Imaging method. This study aims to determine all the parameters affecting the synthesis of EDA-Folate using the Plackett Burman design. The synthesis method included activation of folic acid using dicyclohexylcarbodiimide and N-Hydroxysuccinimide to result in NHS-Folate, followed by conjugation of ethylenediamine with NHS-Folate to produce EDA-Folate. Analysis of the reaction product confirmed that the reaction product was EDA-Folate. From the resulted data, it can also be concluded that there were four significant parameters (out of the ten parameters studied) in the synthesis of EDA-Folate (with its value presented in the bracket), i.e., time inactivation of NHS-Folate (24 h), stirring rate inactivation of NHS-Folate (300 rpm), the mole of EDA (12 moles), and time of EDA-Folate (12 h). Moreover, the value or desirability of the experimental design was found to be 0.875 (which is < 1.0), meaning that the design will produce optimal conditions and thus the optimal yield of the reaction.

Co-Authors A. Mutalib A. Mutalib Abd. Rasyid Syamsuri Abdul Haris Watoni Abdul Mutalib Abdul Mutalib Abdul Mutalib Abdul Mutalib Abdul Mutalib Abdul Mutalib Abdul Mutholib Achmad Zainudin Achmad Zainudin, Achmad Afifah R. Widianti Afifah Rana Widianti Anak Agung Istri Sri Wiadnyani Anggraeni A Anna Permanasari Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni Anni Anggraeni, Anni Ari Hardianto Arie Hardian Atje Setiawan Abdullah Br Ginting, Ela Riana Budi Nurani Ruchjana Dachariyanus Dachariyanus Dachariyanus Dachariyanus Dachrianus Dachrianus Dachriyanus Dewianti, Zenith Putri Diana Hendrati Diana Hendrati Diana Hendrati Dolih Gozali Dwi Ratna Setiani Effendi, Syulastri Elfita Elfita Elfita Elfita Elfita Elsa Aghnia M Erianti Siska Purnamasari Fauzia Salsabila Fauzia, Retna P. Handias Meilinda Hardianto A Herman Herman Heru Agung Saputra I Gusti Bagus Wiksuana Iwan Hastiawan Iwan Hastiawan Janitra, R S Karmina, Putri Karya Sinulingga Laode Rijai Linda Septiana Lisda Virdasari Madyawati Latief Mardiah, Najmah Marline Abdassah Motlan . Muhammad Yusuf Muhammad Yusuf Muharni Muharni Muharni Muharni Muharni Muharni Muljadji Agma Musfiroh, Vera Muthalib A Novi Noviyanti Nst, Hafni Indriati Nunik Nurlina Nurdeni, Nurdeni Nurlina, Nunik Nurwulanda, Salsha Ponis Tarigan Ponis Tarigan Pratomo, Uji Primadhini Primadhini Primadhini, Primadhini Purba, Anita Zefanya M. R. Ukun M.S. Soedjanaatmadja Rahmanillah, Kharitas I. Ratna Sari Dewi Ravenna Aristantia Retna Putri Fauzia Retna Putri Fauzia Rymond Jusuf Rumampuk Santhy Wyantuti Sapto Raharjo Sembiring, Surya Julius Senadi Budiman Shauvina, Shauvina A Sodjanaatmadja, Ukun M. S. Soetijoso Soemitro Soetijoso Soemitro Soetijoso Soemitro Sofyan M Nur SOFYAN M.NUR, SOFYAN Sofyatin, Titin Soja Siti Fatimah Sundani N. Soewandhi Supriyatna Soetardjo Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Supriyatna Sutardjo Syafei, Minda Syafina Tarigan, Mei Cristin Titin Sofyatin Titin Sofyatin Titin Sofyatin Ukun M. S. Sodjanaatmadja Unang Supratman Vera Musfiroh W.C. Taylor Yeni Wahyuni Hartati Yue Mao Shen Zackiyah, Zackiyah Zenith Putri Dewianti

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