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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 Alchemy Jurnal Penelitian Kimia 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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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.

Kandungan Kimia dari Fraksi Aktif Antioksidan Ekstrak Kulit Batang Garcinia forbesii King Madyawati Latief; Supriyatna Soetardjo; Husein H. Bahti; Dachriyanus Dachriyanus
PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Pharmacy, Vol. 05 No. 01 April 2007
Publisher : Pharmacy Faculty, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1784.677 KB)

Penelitian ini dilakukan untuk menentukan aktivitas antioksidan ekstrak kulit batang daun Garcinia forbesii (Guttiferae). Uji aktivitas antioksiodan dari masing-masing ekstrak menggunakan metode pembentukan radikal DPPH (1,1-difenil-2-pikrilhidrazil). Dari fraksi aktif antioksidan telah diisolasi senyawa stigmasterol dengan teknik kromatografi kolom. Identifikasi struktur dilakukan berdasarkan data UV, IR, 1H NMR dan 13C NMR. Ekstrak heksan, diklorometan dan metanol menunjukan persentase inhibisi berturut-turut pada 88%, 93% dan 86%.

Komponen Utama Fraksi Aktif Antibakteri dari Kulit Batang Kandis Gajah (Garcinia griffithii T. Aners) Terhadap Bakteri Uji Penyebab Diare Escherichia coli dan Shigella dysentriae Elfita Elfita; Supriyatna Supriyatna; Husein H. Bahti; Dachriyanus Dachriyanus
PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Pharmacy, Vol. 05 No. 02 Agustus 2007
Publisher : Pharmacy Faculty, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2140.554 KB)

Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri komponen utama fraksi aktif kulit batang kandis gajah (Garcinia griffithii) terhadap Escherichia coli dan Shigella dysentriae. Pengujian aktivitas antibakteri dilakukan dengan metode difusi cakram. Identifikasi terhadap senyawa hasil isolasi dilakukan berdasarkan uji fotokimia, spektroskopi ultraviolet dan inframerah. Hasil penelitian menunjukkan bahwa fraksi heksana merupakan fraksi teraktif, diikuti oleh fraksi diklorometana dan metanol. Fraksi F1 heksana merupakan komponen utama, berupa senyawa steroid. Komponen utama ini memiliki gugus hidroksi, hidrokarbon alifatik, ikatan rangkap terisolasi, rangka dasar siklopentana, isopropil, dan ikatan karbon-oksigen.

Aktivitas Antioksidan Ekstrak Daun Garcinia celebica Linn (Kandis) Madyawati Latief; Supriyatna Soetardjo; Husein H. Bahti; Dachriyanus Dachriyanus
PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Pharmacy, Vol. 05 No. 02 Agustus 2007
Publisher : Pharmacy Faculty, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1733.683 KB)

Penelitian ini bertujuan untuk mengetahui aktivitas antioksidan ekstrak heksanaa, etil asetat, dan metanol dari daun kandis (Garcinia celebicat Linn), familia Gunttiferae. Uji aktivitas antioksidan menggunakan metode pembentukan radikal DPPH. Pemilihan senyawa yang diisolasi didasarkan pada aktivitas senyawa tersebut pada uji antioksidan. Dari pemeriksaan kandungan kimianya senyawa hasil isolasi termasuk golongan triterpenoid.

Konstituen Bioaktif Dari Kulit Batang Garcinia cymosa Muharni Muharni; Supriyatna Supriyatna; Husein H. Bahti; Dachriyanus Dachriyanus
PHARMACY: Jurnal Farmasi Indonesia (Pharmaceutical Journal of Indonesia) Jurnal Pharmacy, Vol. 05 No. 01 April 2007
Publisher : Pharmacy Faculty, Universitas Muhammadiyah Purwokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1690.335 KB)

Konstituen bioaktif terhadap bakteri Staphylococcus aureus dan Escherichia coli telah diisolasi dari ekstrak etil asetat kulit batang Garcinia cymosa. Identifikasi terhadap senyawa hasil isolasi dilakukan berdasarkan uji fitokimia dan penentuan struktur menggunakan metode spektroskopi UV dan IR.

PEMBUATAN RESIN PENUKAR KATION SELULOSA FOSFONAT DAN EFISIENSI PERTUKARANNYA TERHADAP UNSUR TANAH JARANG Anni Anggraeni; Elsa Aghnia M; Titin Sofyatin; Diana Hendrati; Husein H. Bahti
Jurnal Sains dan Terapan Kimia Vol 11, No 2 (2017)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Kromatografi pertukaran ion telah digunakan secara luas dalam proses pemisahan dan pemurnian. Resin penukar ion komersial sebagai fasa diam pada umumnya berbasis polistiren. Pada penelitian ini dikaji pembuatan resin penukar kation dengan gugus sulfonat yang diikatkan pada selulosa dari serat batang pisang sebagai limbah pertanian. Pembuatan resin penukar kation diawali dengan proses isolasi selulosa dari serat batang pisang, kemudian proses fosforilasi menggunakan fosfor oksiklorida 16,67% dalam metilen klorida (1:5), dan karakterisasi resin selulosa fosfonat menggunakan spektrofotometer inframerah, XRF, uji kapasitas pertukaran ion dan efisiensinya terhadap ion-ion Gadolinium (III), Neodimium (III), Serium (IV), Samarium (III), Praseodimium (III) dan Yttrium (III). Hasil penelitian menunjukkan kemurnian selulosa dari proses isolasi adalah 90,70% dan proses fosforilasi optimum pada suhu 90oC selama 2,5 jam. Karakterisasi dari spektrum inframerah menunjukkan adanya puncak baru, yaitu pada serapan 1240 cm-1 yang merupakan daerah untuk regangan P-O-C dan diperkuat dengan meningkatnya intensitas pada serapan 1319 cm-1 yang menunjukkan regangan P=O. Massa jenis resin selulosa terfosforilasi adalah 1,68 g/mL dan kapasitas pertukaran kation 1,99 mek/g. Efisiensi pertukaran kation resin terhadap ion-ion Gadolinium (III), Neodimium (III), Serium (IV), Samarium (III), Praseodimium (III) dan Yttrium (III) berturut-turut adalah 108,8±0,17x10-3, 111,9±0,04x10-3, 98,1±0,02 x10-3, 96,4±0,79x10-3, 82,3±0,04x10-3 dan 92,4±0,04x10-3 mek/g. Kata Kunci: Resin penukar kation, selulosa, fosforilasi, kapasitas pertukaran ion, efisiensi pertukaran ion

The Effect of Acetonitrile Solvent on the Quantitative Determination of Europium (III) by Voltammetry and its Optimization using the Box-Behnken Design Uji Pratomo; Ari Hardianto; Yeni Wahyuni Hartati; Husein Hernandi Bahti; Santhy Wyantuti
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 8, No. 1, May 2022
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v8i1.22508

There is often a drawback during the determination of Eu in aqueous solvents using the voltammetric method. The current signal from water can reduce that of the element, which causes difficulty while separating the Eu signal from other rare earth elements (REE). Therefore, this study used acetonitrile as a solvent due to its high electrical conductivity and wide potential range. The optimum conditions for the determination of Eu in acetonitrile using the Box-Behnken design include 74.56 seconds deposition time, 0.125 V amplitude modulation, and -2.0 V potential deposition. The platinum electrode's performance showed a recovery value of 98.91% and accuracy and precision (in %RSD) of 96.67% and 1.11%, respectively. Furthermore, detection and quantitation limits of 0.6 mg/L and 5.1 mg/L were recorded from the analysis. It concluded that the differential pulse voltammetry method was applied to determine the presence of Eu in acetonitrile.

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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