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All Journal CHEMISTRY PROGRESS ILMU KELAUTAN: Indonesian Journal of Marine Sciences Reaktor Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology SAINS DAN MATEMATIKA JURNAL KIMIA SAINS DAN APLIKASI Jurnal Ilmu Lingkungan Jurnal Pengolahan dan Bioteknologi Hasil Perikanan Alchemy : Journal of Chemistry Indonesian Journal of Cancer Chemoprevention Indonesian Journal of Chemical Science Akta Kimia Indonesia Indonesia Journal of Halal Indonesian Journal of Chemical Analysis (IJCA) Molekul: Jurnal Ilmiah Kimia JKPK (Jurnal Kimia dan Pendidikan Kimia) Bahasa: Jurnal Keilmuan Pendidikan Bahasa dan Sastra Indonesia International Journal Of Science, Technology & Management (IJSTM) Prosiding Seminar Nasional Universitas Serambi Mekkah

Bambang Cahyono

Department Of Chemistry, Faculty Of Science And Mathematics, Diponegoro University Jl. Prof. Soedarto SH. - Tembalang, Semarang (50275)

Author-ID : 245556

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Transportation Other

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PENGARUH PROSES PENGERINGAN RIMPANG TEMULAWAK (Curcuma xanthorriza ROXB) TERHADAP KANDUNGAN DAN KOMPOSISI KURKUMINOID Bambang Cahyono; Muhammad Diah Khoirul Huda; Leenawaty Limantara
Reaktor Volume 13, Nomor 3, Juni 2011
Publisher : Dept. of Chemical Engineering, Diponegoro University

EFFECT OF DRYING PROCESSES ON CURCUMINOID CONTENT AND COMPOSITION OF TEMULAWAK (Curcuma xanthorriza ROXB) RHIZOMES. Curcuminoid a yellow coloring agent of turmeric is known to have many benefits in food and medicinal industries. This compound can be isolated by simple extraction from fresh rhizome or symplicia. The research of comparing qualitative and quantitative of curcuminoid in different drying process has not yet been published. Drying methods used in this research were done in an oven at 60°C and under 30-watt electrical lamp at ±30°C. Each method was carried out in time variation of 1, 3, and 5 days. Extraction of curcuminoid was done using ethanol 95% followed by fat reduction process using petroleum ether. Curcuminoid analysis was done by TLC, UV-Visible spectrophotometer and HPLC. The result showed that the water content of all samples was approximately 4.06%-7.76%. TLC analysis identified the presence of two dominant components in the curcuminoid with the Rf values of 0.37 and 0.15. The UV-Visible spectra indicated that simplicia would give more result in curcuminoid than fresh rhizome. There were 4 substances detected in HPLC analysis, they were curcumin 61-67%, demetoxycurcumin 22-26%, bisdemetoxycurcumin 1-3%, and curcuminoid derivative 10-11%. In addition, drying on oven resulted brighter and crispier simplicia than drying under lamp. Kurkuminoid yang merupakan zat utama yang berwarna kuning dalam temulawak telah diketahui memiliki banyak manfaat di bidang kesehatan dan makanan. Bahan ini dapat diisolasi dari bahan segar atau simplisia kering melalui ekstraksi. Riset yang mencoba membandingkan kualitas dan kuantitas kurkuminoid akibat perlakuan panas pada saat pembuatan simplisia hingga sekarang belum pernah dilakukan. Penelitian dimulai dengan pengeringan temulawak segar setelah dirajang pada oven suhu 60°C dan pada pengeringan lampu listrik 30 watt pada suhu ± 30°C. Masing-masing metode dilakukan variasi lama pengeringan 1, 3, 5 hari. Ekstraksi kurkuminoid dilakukan menggunakan etanol 95% dan defatisasi menggunakan petroleum eter, sedangkan analisis kualtatif dan kuantitatif kurkuminoid direalisasikan dengan KLT, spektrofotometer UV-Tampak dan KCKT. Hasil penelitian menunjukkan bahwa kandungan air semua sampel sekitar 4,06%-7,76%. Analisis KLT mengidentifikasi adanya dua komponen dominan dalam kurkuminoid dengan nilai Rf 0,37 dan 0,15. Hasil analisis Spektrofotometri UV-tampak memberikan keenderungan bahwa kurkuminoid dari sampel kering lebih mudah terekstraksi daripada sampel basah. Kromatogram HPLC dapat mendeteksi adanya 4 senyawa yaitu kurkumin 61-67%, demetoksikurkumin 22-26%, bisdemetoksikurkumin 1-3%, dan turunan kurkuminoid 10-11%, urutan prosentase masing-masing komponen tetap sama selama proses pengeringan. Hasil penelitian ini juga telah dapat menunjukkan bahwa perbedaan kondisi operasi pengeringan sangat mempenaruhi penampakan simplisia yang dihasilkan, pengeringan oven memiliki warna lebih cerah dan lebih meremah daripada pengeringan lampu.

SINTESIS SENYAWA C18H26O9 DARI HIPTOLIDA HASIL ISOLASI DAUN HYPTIS PECTINATA Meiny Suzery; Ely Kusniawati; Dwi Hudiyanti; Bambang Cahyono
Reaktor Volume 14, Nomor 1, April 2012
Publisher : Dept. of Chemical Engineering, Diponegoro University

SYNTHESIS OF C18H26O9 COMPOUNDS FROM HYPTOLIDE ISOLATED FROM HYPTIS PECTINATA LEAVES. Isolation of hyptolide has been done from Hyptis pectinata, and alkene group transformation through oxidation reactions using H3B: OEt2 to the isolated compound was also conducted. Product analyses were carried out using TLC, UV spectrometry, IR, and LC-MS. Pure crystal with melting point of 86-87oC was isolated. The yield was 1.75% (w/w). After analysing and compilating of spectroscopic data it was confirmed as hyptolide compound. Hydroboration of this compound (followed by hydrolysis using H2O2 under alkaline conditions) produce its alcohol derivatives, with 28.9% the percentage of transformation, it was demonstrated by LCMS data. IR spectrum at 3600cm-1, confirming the replacement of hydroxyl bond by alkene. Regioselectivity of addition reaction is proposed through simulation with Chem Office. The reaction product was suspected as 6-hydroxy-7-(6-oxo-3,6-dihydro-2H-pyran-2-yl) heptane-2,3,5-tryil triacetate. Extension of reaction time to 24 hours, has increase hydroboration product to 78.3%. This research has opened other studies of natural materials in accordance to the roadmap set. Telah dilakukan isolasi hiptolida dari bahan alam Hyptis pectinata, dan transformasinya melalui reaksi oksidasi menggunakan H3B:OEt2 terhadap gugus alkena pada senyawa hasil isolasi. Analisis produk dilakukan menggunakan KLT, spektrometri UV, IR, dan LC-MS. Kristal murni dengan titik leleh 86-87oC berhasil diisolasi dengan rendemen 1,75 % (b/b), dirujuk sebagai senyawa hiptolida setelah melalui analisis dan kompilasi data-data spektroskopi. Hidroborasi terhadap senyawa hiptolida (yang diikuti hidrolisis menggunakan H2O2 dalam suasana basa) menghasilkan senyawa alkohol turunannya, dengan persentase transformasi sebesar 28,9%, dapat ditunjukkan melalui data LCMS. Data spectrum IR menunjukkan adanya puncak pada 3600cm-1, memperkuat dugaan adanya ikatan hidroksil menggantikan gugus alkena. Regioselektivitas reaksi adisi diusulkan melalui simulasi dengan Chem Office, produk reaksi diduga mempunyai struktur sebagai 6-hydroxy-7-(6-oxo-3,6-dihydro-2H-pyran-2-yl)heptane-2,3,5-tryil triacetate. Perpanjangan waktu reaksi selama 24 jam, telah dapat menaikkan produk hidroborasi menjadi 78,3%. Data penelitian ini telah membuka jalan bagi penelitian-penelitian bahan alam lain sesuai dengan roadmap penelitian yang telah ditetapkan.

Encapsulation Rutin with Chitosan-NATPP Using Coaservation Method Bambang Cahyono; Meiny Suzery; H Hadiyanto; Sestri Bela Pratiwi
Reaktor Volume 17 No. 4 Desember 2017
Publisher : Dept. of Chemical Engineering, Diponegoro University

Abstract This study aims to make microparticles of rutin compounds at various concentrations with NaTPP-chitosan as matrix. Encapsulation is done by coaservation method. The success of encapsulation was identified by UV-Vis spectrophotometry, Fourier Transform Infra-Red (FTIR) spectroscopy and Scanning electron microscopy (SEM). Based on UV-Vis spectrophotometry analysis, the efficiency of encapsulation (EE) and loading capacity (LC) was obtained at 62,43-94,36 and 1,73% -32,1%, at rutine concentration 0,625-11,25 mM. The success of rutin encapsulation is demonstrated by the rutin characteristics of the product seen with the presence of peaks of aromatic rings, indicating the presence of rutin compounds contained in the chitosan matrix. SEM analysis shows rough and porous surface morphology in microcapsules. The rutin release profile of the microcapsules is described as two phase processes, burst release at the initial discharge in the first 30 min followed by slow release. At the highest LC (11.25 mM concentration), it provides greater discharge rates for both synthetic fluid simulations 77.53 ± 3.59% and 78.76 ± 4.00% after 3h of discharge. The controlled release data showed high discharge rates at acidic pH than alkaline pH. Keywords: Rutin, encapsulation, citosan, coaservation

Co-Authors . Widayat A.A. Ketut Agung Cahyawan W Agustina L.N. Aminin Al-Baarri, Ahmad Ni'matullah Amalina, Nur Dina Ambaryanto Ambaryanto Aninditya Artina Setiaputri Bayu Legowo Burhan Nudin Christiana Suci Prihatini Christina Setyadewi M. Citra Agustina Isnaning Damar Nurwahyu Bima Damar Nurwahyu Bima Defita Faridlotus Shalihah Dewi Kusrini Diana Chilmawati Dwi Hudiyanti Ely Kusniawati Fransisca Biranti Fronthea Swastawati H Hadiyanto Hendarko, Sriani Heru Susanto I Gusti Bagus Wiksuana Ima Wijayanti Ismiyarto Ismitarto Ita Widowati Jusup Supriyanto Khairul Anami Laely Zahro Leenawaty Limantara M. Suzery Madiyono, Madiyono Meiny Suzery Meiny Suzery Merry Gultom Muflihatul Muniroh Muhammad Diah Khoirul Huda Muhammad Nur Arkham Muhammad Nursid Mukhammad Asy'ari Nazli, Nazli Ngadiwiyana M.Si. S.Si. Nike Rizky Prahesti, Nike Rizky Ningsih, Alyxia Stellata Aria Parsaoran Siahaan Putri Pratiwi Raisi Aga Oktavi Retno Sariningsih Riky Auliawan Rini Budi Hastuti Sestri Bela Pratiwi Siti Khumairoh Slamet Suharto Sulistyowati Sulistyowati Supriyanto . Suradi, Agus Tri Winarni Agustini Umi Baroroh Lili Utami Veronika Adelina Hartini Widayadi, Eko Zahroul Umami Qodri Zainal Arifin

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