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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Industri Pertanian E-jurnal Agro-Industri Indonesia Forum Pasca Sarjana International Journal of Science and Engineering (IJSE) International Journal of Renewable Energy Development TEKNIK Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Sains Materi Indonesia Microbiology Indonesia Majalah Kedokteran Bandung BIOTROPIA - The Southeast Asian Journal of Tropical Biology AL KAUNIYAH Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Agrointek Jurnal AgroBiogen Jurnal Penelitian Pascapanen Pertanian Jurnal Teknologi Pertanian Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Jurnal Litbang Industri Science and Technology Indonesia Industria: Jurnal Teknologi dan Manajemen Agroindustri Jurnal Bioteknologi & Biosains Indonesia (JBBI) EnviroScienteae EDUFORTECH IJEMS (Indonesian Journal of Environmental Management and Sustainability) Seminar Nasional Lahan Suboptimal Menara Perkebunan Teknologi Indonesia STI Policy and Management Journal Jurnal Ilmu Kefarmasian Indonesia PERENNIAL Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Jurnal Litbang Industri Makara Journal of Science Makara Journal of Technology International Journal of Renewable Energy Development
Khaswar Syamsu
Department Of Agricultural Industrial Technology - Bogor Agricultural University Dramaga, Bogor, 16680
Agriculture, Biological Sciences & Forestry 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Veterinary Other

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Journal : Jurnal AgroBiogen

 1 
Purifikasi dan Karakterisasi α-amilase Termostabil dari Bacillus stearothermophilus TII-12 Lestari, Puji; Richana, Nur; Darwis, Abdul Aziz; Syamsu, Khaswar; Murdiyatmo, Untung
Jurnal AgroBiogen Vol 7, No 1 (2011): April
Publisher : Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jbio.v7n1.2011.p56-62

Abstract

Purification and Characterization of Thermostableα-amylase from Bacillus stearothermophilus TII-12. PujiLestari, Nur Richana, Abdul A. Darwis, Khaswar Syamsu,and Untung Murdiyatmo. Thermostable α-amylase is apotential enzyme employed in the starch processing andwidely used in food industries, but this enzyme is stillimported. The local enzyme production would be moreeconomist and useful for its broad applications. Here wereport α-amylase from indigenous bacteria TII-12 which waspurified and characterized, as well as analyzed its hydrolysisproduct on cassava starch. The enzyme of Bacillusstearothermophilus TII-12 partially purified by ultrafiltration,acetone precipitation and gel filtration (Sephadex G-100)showed the reduced total activity, total protein and yield, butincreased the specific activity. The enzyme had a Km of 1,06mg/ml and Vmax of 1,21 mol/min, with optimal activity at pH 7and 90oC. An apparent molecular mass was of 192.932,8Dalton, as estimated by Native-Polyacrylamide Agarose Gelelectrophoresis. Its activity was inhibited by the divalentcation chelator such as EDTA and CuSO4 but activated bycalcium ion. Hydrolysis products of this enzyme on cassavastarch were glucose, dextrin, maltose and oligosaccharides.After 24 hours of hydrolysis, the concentration of glucoseand maltose reached 51.970 and 10.090 ppm, respectively.The thermostable α-amylase of TII-12 is an endo-α-amylaseand prospective to be applied on starch liquefaction withhigh temperature process.
Isolasi Identifikasi Bakteri Penghasil Xilanase serta Karakterisasi Enzimnya Nur Richana; Tun T. Irawadi; Anwar Nur; Khaswar Syamsu
Jurnal AgroBiogen Vol 4, No 1 (2008): April
Publisher : Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jbio.v4n1.2008.p24-34

Abstract

Xylanase is an extracellular enzyme produced bymicroorganisms. This enzyme is able to hydrolise xylane(hemicellulose) to produce xylooligosaccharide and xylose.Thermoalkaliphilic xylanase is an agent that can be used asa substitute in the pulp whitening process instead of chlorine.A study was done to isolate, identificate of bacteria andcharacterize xylanase. The isolation of xylanase producingbacteria has been done from soil and waste of starch industry.Colonies which produced clearing zone were presumedas xylanolytic bacteria and chosen for further screening.Identification of potential isolate in xylanase production wasdone using 16S ribosomal RNA sequencing. Isolate Bacilluspumilus RXA-III5 originated from lime or alkaline soil wasmore potential isolate in xylanase production than other 24isolates. Precipitation of xylanase, that was done usingammonium sulphate followed by dialyzes produced xylanaseof a higher specific activity (267.1 U.mg-1) than that usingacetone (131.1 U.mg-1) and ethanol (186.65 U.mg-1). Xylanasewas done at purification produced three fractions of xylanase.Xylanase characteristics consist of pH and temperature(9 and 50oC), Km and Vmaks value 6 mg.ml-1 and 0.2mol.minute-1, respectively. The Fe2+ was the strongest activetorand Mg2+ was the strongest inhibitor activity. This enzymewas detected as a cellulose-free xylanase. Xylanase is aprospective agent for bio-bleaching of paper.
Co-Authors . Gunawan . Gunawan A. Aziz Darwis A. Herryandie Abdul Aziz Darwis Adhi Kusnadi Akhmad Endang Zainal Hasan Anas Miftah Fauzi Anggun Rahman Rahman Ani Suryani Ani Suryani Aninda Sekar ZAHRA Anwar Nur Anwar Nur Ardani Lukman ASEP RISWOKO ASTUTIATI NURHASANAH Bambang Prasetya Bambang Prasetya Bambang Prasetya Bambang Prasetya Bustomi - Bustomi Darwis, Abdul Aziz Dede Rais Diana Dewi Diana Dewi, Diana Diana Nurani Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja Dwi - Susilaningsih Dwi Purnomo Dwi Purnomo Dwi Setyaningsih DYAH NOOR HIDAYATI Dyah Noor Hidayati E. Gumbira Sa’id E. Gumbira-Sa’id E. Mardliyati Elisa Julianti Endang Gumbira Said Endang Warsiki Endang Warsiki dan Citra Dewi Wahyono Putri (E-Jurnal Agro-Industri Indonesia) Eni Dwi Islamiati Eni Dwi Islamiati Eni Dwi Islamiati, Eni Dwi Erwahyuni E Prabandani ERWAHYUNI ENDANG PRABANDARI ERWAHYUNI ENDANG PRABANDARI Erwahyuni Prabandari Erwahyuni Prabandari, Erwahyuni Essa Annisa Syadiah Etik Mardliyati Etik Mardliyati Etik Mardliyati, Etik Etty Riani FARAH FAHMA FENTRI PARAMITHA PUTRI Fitriani Kasim Gamma Irca Pradikta Griselda Happy Ramadhani Gumbira-Sa'id, E Gustri Yeni Gustri Yeni Han Roliadi Hanifah FUADI Hanny Hafiar Hendri Muchtar Hendri Muchtar, Hendri Herastuti Sri I Nyoman Jaya Wistara Iftachul Farida Ika Amalia Kartika Ike Sitoresmi M Purbowati Illah Sailah Irawadi Jamaran Irvan Setiadi Kartawiria IS HELIANTI Isroi Isroi Isroi Jayawarsa, A.A. Ketut Joko Santoso Kasid, Sri Kaidah kusnadi, adhi Lanjar Sumarno Lanjar Sumarno Lestari, Puji Liesbetini Haditjaroko Liesbetini Hartoto Lucky Risanto M Irfani ABDULLAH M. ANWAR NUR M. Daud Machfud Mala Nurilmala Manalu, Lamhot Mardliyati, Etik Muhammad Arif Darmawan Muhammad Daud Muhammad Rasyid RAMADHAN Muhammad Tasrif Muhammad Tasrif Mulyorini Rahayuningsih Murdiyatmo, Untung Muslich Muslich, Muslich N. A. Evalia Nabilah, Siti Nadia STEPANI Nastiti Siswi Indrasti Nasution, Nurul Cinthiya nFN Misgiyarta NIKNIK NURHAYATI Ninik Purbosari Nur Atifah Nur Richana Nurika Asih SETIYANI Nusaibah - Nusaibah Prayoga SURYADARMA Ridwansyah Ridwansyah Rini Purnawati Rofiq Sunaryanto Rofiq Sunaryanto S Heris Anita, S Heris S Joni Munarso Sa’id, E. Gumbira Sapta Raharja Sarifah Nurjanah Selvia Mahilda RIDHOHA Shinta PERMATASARI Siti Nabilah Sony Hartono Wijaya Sudirman Sudirman Suharyanto Suprihatin Suprihatin Surono SURONO Tajuddin Bantacut Taufik Hidayat Titi Candra Sunarti Tri Panji Tun T. Irawadi Tun Tedja Irawadi Tun Tedja Irawadi Wahono Sumaryono Wasrin Safii Wasrin Syafii Widya FATRIASARI Widya Fatriasari Yandra Arkeman Yandra Arkeman Yandra Arkenan Yeni, Gustri Yeni, Gustri