Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal Marine Research in Indonesia JSFK (Jurnal Sains Farmasi & Klinis) JFIOnline Current Research on Biosciences and Biotechnology
Rahmana Emran Kartasasmita
Sekolah Farmasi, Institut Teknologi Bandung, Jl, Ganesha No.10
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
ISOLATE OF HETEROTROPHIC MICROALGAE AS A POTENTIAL SOURCE FOR DOCOHEXAENOIC ACID (DHA) Julianti, Elin; Fathurohman, Mochamad; Damayanti, Sophi; Kartasasmita, Rahmana Emran
Marine Research in Indonesia Vol 43, No 2 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2269.65 KB) | DOI: 10.14203/mri.v43i2.264

Abstract

Docosahexaenoic acid (DHA) is one of essential fatty acids that are beneficial to health. Nowadays, the source of docosahexaenoic acid (DHA) is mainly obtained from fish which are extracted into fish oil products. However, the fish oil products still have some drawbacks in term of purity, acceptable flavor for costumers, and also their not environmental friendly production process. As an alternative solution, heterotrophic microalgae can be used as a potential source for DHA due to their excellence compared to fish oil products. The aim of this study is to isolate the heterotropic microalgae that can produce DHA. The heterotrophic microalgae were isolated from mangrove fallen leaves (Rhizophora apiculata) by using direct planting method. The morphology of pure microalgae colony were observed through light microscope and subsequently fermented for 14 days. Fatty acids were extracted and methylated through direct transesterification method. Identification and quantification of DHA were conducted by using gas chromatography. The results were four isolates of heterotropic microalgae, namely MTKC1, MTKC2, MTKC3, and MTKC4. The extract of MTKC2 that only showed the content of DHA with value of 9.2 % w/w. Therefore MTKC2 is a potential source for DHA. The MTKC2 was further identified by using molecular biology method and confirmed as Thraustochytrium aureum.
ISOLATE OF HETEROTROPHIC MICROALGAE AS A POTENTIAL SOURCE FOR DOCOHEXAENOIC ACID (DHA) Julianti, Elin; Fathurohman, Mochamad; Damayanti, Sophi; Kartasasmita, Rahmana Emran
Marine Research in Indonesia Vol 43 No 2 (2018)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2269.65 KB) | DOI: 10.14203/mri.v43i2.264

Abstract

Docosahexaenoic acid (DHA) is one of essential fatty acids that are beneficial to health. Nowadays, the source of docosahexaenoic acid (DHA) is mainly obtained from fish which are extracted into fish oil products. However, the fish oil products still have some drawbacks in term of purity, acceptable flavor for costumers, and also their not environmental friendly production process. As an alternative solution, heterotrophic microalgae can be used as a potential source for DHA due to their excellence compared to fish oil products. The aim of this study is to isolate the heterotropic microalgae that can produce DHA. The heterotrophic microalgae were isolated from mangrove fallen leaves (Rhizophora apiculata) by using direct planting method. The morphology of pure microalgae colony were observed through light microscope and subsequently fermented for 14 days. Fatty acids were extracted and methylated through direct transesterification method. Identification and quantification of DHA were conducted by using gas chromatography. The results were four isolates of heterotropic microalgae, namely MTKC1, MTKC2, MTKC3, and MTKC4. The extract of MTKC2 that only showed the content of DHA with value of 9.2 % w/w. Therefore MTKC2 is a potential source for DHA. The MTKC2 was further identified by using molecular biology method and confirmed as Thraustochytrium aureum.
SINTESIS SORBENT EKSTRAKSI FASE PADAT DENGAN TEKNIK MOLECULAR IMPRINTING DENGAN MONOMER AKRILAMID UNTUK EKSTRAKSI GLIBENKLAMID DARI SERUM DARAH Hasanah, Aliya Nur; Kartasasmita, Rahmana Emran; Ibrahim, Slamet
JFIOnline | Print ISSN 1412-1107 | e-ISSN 2355-696X Vol 7, No 4 (2015)
Publisher : Indonesian Research Gateway

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

Abstract

Glibenklamid merupakan obat yang digunakan dalam penanganan diabetes melitus dan digunakan dalam jangka waktu yang panjang. Efisiensi pemisahan glibenklamid dibutuhkan untuk monitoring kadar obat dalam darah dalam upaya memastikan efektivitas obat. Penelitian ini dilakukan untuk memperoleh sorben Molecular Imprinted Solid Phase Extraction (MI-SPE) untuk pemisahan glibenklamid dari sampel serum. Penelitian dilakukan dengan tahapan sintesis metode polimerisasi ruah,karakterisasi MI-SPE yang dihasilkan dan aplikasinya pada sampel serum. Sintesis MI-SPE dilakukan menggunakan dua komposisi rasio template:monomer:cross linker dalam kloroform sebagai porogen. Hasil pengujian menunjukkan bahwa adsorpsi MI-SPE dengan rasio 1:6:70 menghasilkan persentase adsorpsi 88,47% pada Molecular Imprinted Polymer (MIP) dan 54,33% terhadap Non Imprinted Polymer (NIP). Aplikasi sorben MIP dalam ekstraksi fase padat dilakukan menggunakan 200 mg polimer pada cartridge 3 mL. Sampel serum yang ditambahkan glibenklamid kemudian dilewatkan ke dalam MIP menghasilkan nilai persen perolehan kembali 89,67;93,75;92,64 dan 82,82% untuk konsentrasi 0,5;2;4 dan 6 mg L-1. Hasil penelitian menunjukkan bahwa MI-SPE yang dibuat dari monomer akrilamid dengan komposisi 1:6:70 dapat digunakan sebagai pretreatment untuk ekstraksi glibenklamid dari serum darah.
SINTESIS SORBENT EKSTRAKSI FASE PADAT DENGAN TEKNIK MOLECULAR IMPRINTING DENGAN MONOMER AKRILAMID UNTUK EKSTRAKSI GLIBENKLAMID DARI SERUM DARAH Hasanah, Aliya Nur; Kartasasmita, Rahmana Emran; Ibrahim, Slamet
Jurnal Farmasi Indonesia Vol 7, No 4 (2015)
Publisher : Jurnal Farmasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.131 KB) | DOI: 10.35617/jfi.v7i4.255

Abstract

Glibenklamid merupakan obat yang digunakan dalam penanganan diabetes melitus dan digunakan dalam jangka waktu yang panjang. Efisiensi pemisahan glibenklamid dibutuhkan untuk monitoring kadar obat dalam darah dalam upaya memastikan efektivitas obat. Penelitian ini dilakukan untuk memperoleh sorben Molecular Imprinted Solid Phase Extraction (MI-SPE) untuk pemisahan glibenklamid dari sampel serum. Penelitian dilakukan dengan tahapan sintesis metode polimerisasi ruah,karakterisasi MI-SPE yang dihasilkan dan aplikasinya pada sampel serum. Sintesis MI-SPE dilakukan menggunakan dua komposisi rasio template:monomer:cross linker dalam kloroform sebagai porogen. Hasil pengujian menunjukkan bahwa adsorpsi MI-SPE dengan rasio 1:6:70 menghasilkan persentase adsorpsi 88,47% pada Molecular Imprinted Polymer (MIP) dan 54,33% terhadap Non Imprinted Polymer (NIP). Aplikasi sorben MIP dalam ekstraksi fase padat dilakukan menggunakan 200 mg polimer pada cartridge 3 mL. Sampel serum yang ditambahkan glibenklamid kemudian dilewatkan ke dalam MIP menghasilkan nilai persen perolehan kembali 89,67;93,75;92,64 dan 82,82% untuk konsentrasi 0,5;2;4 dan 6 mg L-1. Hasil penelitian menunjukkan bahwa MI-SPE yang dibuat dari monomer akrilamid dengan komposisi 1:6:70 dapat digunakan sebagai pretreatment untuk ekstraksi glibenklamid dari serum darah.
Isolation of α-glucosidase enzyme inhibitor from titanus (Leea aequata L.) Bangar, Roy; Ningsih, Kurnia Nastira; Kartasasmita, Rahmana Emran; Insanu, Muhamad
Current Research on Biosciences and Biotechnology Vol. 6 No. 1 (2024)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/crbb.2024.6.1/XCGSRS5W

Abstract

Diabetes mellitus is a metabolic disease characterized by high blood glucose levels. Indonesia was ranked fourth globally, with over 12 million people suffering from diabetes. Natural-based drugs can be an alternative for treating diabetes with fewer side effects and are expected to be more economical than conventional drugs. One of the plant families used to reduce blood glucose levels is the Vitaceae family. One of the Vitaceae species currently used for traditional medicine is Leea aequata. This study aimed to isolate active compounds with α-glucosidase inhibitor activity from titanus plant. This study began with collecting leaf, fruit, and stem samples from titanus plants that grow in North Sumatra. The extraction method used was maceration using ethanol 96%. The isolation stage started with fractionation, followed by purification with column chromatography, in which TLC monitored for each process. α-glucosidase in testing was carried out on extracts, fractions, and isolates using a reagent Multiscan microplate reader at 400 nm. Compound identification was done using spectrodensitometry and 1H-NMR spectroscopy. The IC50 value of the ethyl acetate fraction (2.4±0.02 µg/mL) was higher than the ethanol extract (8.96 ± 0.44 µg/mL), n-hexane fraction (21±0.61 µg/mL), and water fraction (16.96 ± 0.38 µg/mL), so it was continued to the isolation stage. The isolated compound was characterized as 3,3′,4′,5,7-Pentahydroxyflavone 3-rhamnoside (quercitrin) with the IC50 was 12.25 ± 0.2 µg/mL.
Optimasi Nanoemulsi Natrium Askorbil Fosfat melalui Pendekatan Design of Experiment (Metode Box Behnken) Nursal, Fith Khaira; Sumirtapura, Yeyet Cahyati; Suciati, Tri; Kartasasmita, Rahmana Emran
JSFK (Jurnal Sains Farmasi & Klinis) Vol 6 No 3 (2019): J Sains Farm Klin 6(3), Desember 2019
Publisher : Fakultas Farmasi Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jsfk.6.3.228-236.2019

Abstract

Penghantaran senyawa hidrofilik secara transkutan memiliki keterbatasan karena permeabilitas rendah sehingga sulit dalam menembus lapisan stratum corneum (SC). Natrium askorbil fosfat (NAF) merupakan salah satu senyawa turunan vitamin C yang sangat hidrofil dan permeabilitas rendah terhadap lapisan kulit. Sebagaimana vitamin C, NAF dapat berfungsi sebagai antioksidan juga memiliki aktivitas sebagai antikerut karena dapat memicu pertumbuhan kolagen pada fibroblast. NAF dibuat dalam nanoemulsi, karena sediaan dengan ukuran globul yang kecil diharapkan dapat menembus lapisan SC dan membawa zat aktif berpenetrasi ke dalam lapisan kulit. Optimasi formulasi nanoemulsi dilakukan melalui pendekatan statistik design of experiment (DoE) yang terdiri dari desain faktorial dan respon surface methods (RSM hingga diperoleh hasil yang lebih efektif dan efisien. Komposisi minyak (VCO), surfaktan (Tween 80), ko surfaktan (PEG 400) dan proses pengadukan (waktu dan kecepatan) merupakan faktor yang berperan dalam optimasi formulasi. Penentuan faktor tersebut melalui desain eksperimen 2 level factorial dan dilanjutkan dengan metode Box Behnken menggunakan perangkat lunak Minitab 17. Parameter yang diamati adalah ukuran globul dan indeks polidispersitas. Berdasarkan hasil optimasi diperoleh nilai VCO 10% dan kombinasi surfaktan 24%, waktu dan kecepatan pengadukan 5 menit, 200 rpm memberikan ukuran globul ±180 nm dan indeks polidispersitas dibawah 0,5. 
Co-Authors Aliya Nur Hasanah Bangar, Roy Daryono Hadi Tjahjono Fathurohman, Mochamad Fith Khaira Nursal Julianti, Elin Julianti, Elin Muhamad Insanu Ningsih, Kurnia Nastira Rina Anugrah, Rina Slamet Ibrahim Sophi Damayanti Sumirtapura, Yeyet Cahyati Tri Suciati