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All Journal HAYATI Journal of Biosciences Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Dan Industri Pangan Jurnal Teknologi Industri Pertanian E-jurnal Agro-Industri Indonesia Reaktor Microbiology Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology Agrointek Jurnal Penelitian Pascapanen Pertanian Jurnal Penelitian dan Pengembangan Pertanian Buletin Teknologi Pasca Panen Journal of Engineering and Management in Industrial System Indonesian Journal of Business and Entrepreneurship (IJBE) Journal of Engineering and Technological Sciences agriTECH Jurnal Sumberdaya Hayati Science and Technology Indonesia Jurnal Bioteknologi & Biosains Indonesia (JBBI) Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology EDUFORTECH BIOEDUSCIENCE Journal of Tropical Crop Science Menara Perkebunan Journal of Applied Engineering and Technological Science (JAETS) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Penelitian dan Pengembangan Pertanian International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Agroekoteknologi Terapan ABDI PUSTAKA: Jurnal Perpustakaan dan Kearsipan Proceedings of International Conference on Multidiciplinary Research Journal of Applied Agricultural Science and Technology Prosiding Seminar Nasional Universitas Serambi Mekkah PERTANIAN TROPIK Pharmaceutical Sciences and Research (PSR) Makara Journal of Science Makara Journal of Technology Jurnal Natural Journal of Sciencce Technology and Visual Culture JURNAL REKAYASA KIMIA & LINGKUNGAN

Titi Candra Sunarti

Departemen Teknologi Industri Pertanian Fakultas Teknologi Pertanian Institut Pertanian Bogor Jl. Lingkar Akademik, Kampus IPB Darmaga, Bogor 16680; Telp. (0251) 8621974

Author-ID : 2059856

Agriculture, Biological Sciences & Forestry Arts 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 Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Social Sciences Veterinary Other

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Karakteristik Sifat Fisikokimia Pati Garut (Maranta arundinaceae) Didah Nur Faridah; Dedi Fardiaz; Nuri Andarwulan; Titi Candra Sunarti
agriTECH Vol 34, No 1 (2014)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

The objective of this study was to determine the physicochemical characteristics of arrowroot starch. This research was conducted in two steps as follows: arrowroot starch extraction and characterization. A wet starch extraction method yielded 15.69% of arrowroot starch. The arrowroot starch contained starch of 98.10%, amylose 24.64%, amylopectin 75.36%, reducing sugar 4.94%, resistant starch 2.12% and in vitro starch digestibility of 84.35%. Proximate composition studies showed that the moisture content in the arrowroot starch sample is 11.48%, ash 0.34%, fat 0,68% and protein 0,24%. Gel permeation chromatography (GPC) profile of arrowroot starch using Toyopearl HW-65S gel gave mainly two fractions. The distribution of degree of polimerization (DP) of amylopectin using fluorophore-assisted capillary electrophoresis (FACE) indicated four groups of DP, i.e. DP 6-8. 9-12, 13-24 and 25-30. Scanning electron microscopy (SEM) showed that they consist of oval granules. The analysis by RVA showed that arrowroot starch had an A-type starch gelatinization profile. X-ray diffraction studies showed that all the arrowroot starch exhibited A-type diffractionpattern.ABSTRAKPenelitian ini bertujuan untuk mempelajari sifat fisikokimia pati garut. Penelitian dilakukan dalam dua tahap yaitu tahap ekstraksi pati garut dan karakterisasi pati garut. Metode ekstraksi basah menghasilkan rendemen 15,69% pati garut. Pati garut mengandung kadar pati, amilosa, amilopektin, gula pereduksi, pati resisten dan daya cerna pati masing-masing sebesar 98,10%; 24,64%, 75,36%, 4,94%, 2,12% dan 84,35%. Analisis proksimat pati garut mengandung air 11,48%, abu 0,34%, lemak 0,68% dan protein 0,24%. Profil gel permeation chromatography (GPC) dengan menggunakan Toyopearl HW-65S diperoleh 2 fraksi. Distribusi panjang rantai amilopektin diukur dengan fluorophore-assisted capillary electrophoresis (FACE) menunjukkan empat rentang derajat polimerisasi ( DP), yaitu DP 6-8. 9-12, 13-24 and 25-30. Scanning electron microscopy (SEM) mempelihatkan bahwa granula pati garut berbentuk oval. Pengujian Rapid Visco Analysis (RVA) menunjukkan pati garut memiliki profil gelatinisasi pati tipe A begitu pula hasil X-ray diffraction pati garut mempunyai kristalin tipe A.Kata kunci: Pati garut, GPC, FACE, RVA, X-ray diffraction, SEM

Rekayasa Proses Hidrolisis Pati dan Serat Ubi Kayu (Manihot utilissima) untuk Produksi Bioetanol Yuana Susmiati; Dwi Setyaningsih; Titi Candra Sunarti
agriTECH Vol 31, No 4 (2011)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Ethanol production from cassava (Manihot utilissima) usually uses enzymatic process for starch hydrolysis. Enzymatichydrolysis by α-amylase and amyloglucosidase enzymes are not able to convert cassava fibers into sugars. Dilute acid hydrolysis is applied to convert both starch and fibers, which will increase the yield of simple sugars as fermentable sugars and resulting in high ethanol production. In this research there are two steps of dilute acid hydrolysis, first for starch hydrolysis at H SO concentration of 0.1-0.5 M, 5-15 minutes and second for fiber hydrolysis at 0.5-1.0 24M H SO , 10-20 minutes, at the same temperature of 121-127 oC and pressure of 1.0-1.5 atm. The disadvantage of acid hydrolysis is the formation of toxic compounds such as hydroxymethyl furfural (HMF) which is inhibited yeast fermentation. Therefore, acid hydrolyzates were detoxified with NH OH before use as fermentation substrate. The best starch hydrolysis condition was obtained at 0.4 M H SO for 10 minutes which gave 257.37 g/l of total sugars, 24229.38 g/l of reducing sugars, 89.59 of dextrose equivalent (DE) and 0.57 g/l of HMF. While the best fiber hydrolysis performed at 1.0 M H SO solution for 20 minutes which gave 79.74 g/l of total sugars, 70.88 g/l of reducing sugars, 2488.99 of DE and 0.0142 g/l of HMF. Single direct acid hydrolysis was the most suitable substrate for yeast fermentationwith the ethanol concentration of 5.7 % (w/v) and 30.5 % (w/w) of ethanol yield. This result is comparable with enzymatic hydrolysis which gave ethanol yield of 30 % (w/w).ABSTRAKProduksi etanol dari ubi kayu biasanya menggunakan enzim untuk menghidrolisis pati. Hidrolisis secara enzimatismenggunakan enzim α-amilase dan amiloglukosidase tidak mampu mengkonversi serat menjadi gula. Hidrolisis asam berkonsentrasi rendah dilakukan untuk mengkonversi pati dan serat, sehingga gula-gula sederhana yang dapat difermentasi meningkat dan menghasilkan produksi etanol tinggi. Pada penelitian ini ada dua tahap hidrolisis menggunakan asam berkonsentrasi rendah, yaitu tahap pertama untuk menghidrolisis pati dengan konsentrasi H SO 0,1-0,5 M selama 5-15 menit dan tahap kedua untuk menghidrolisis serat dengan kensentrasi H SO 0,5-1,0 M selama 2410-20 menit pada suhu dan tekanan sama, yaitu 121-127 oC dan 1,0-1,5 atm. Kekurangan pada hidrolisis asam adalahterbentuknya senyawa toksik seperti hidroksimetil furfural (HMF) yang mengganggu fermentasi khamir. Oleh karena itu hidrolisat asam didetoksifikasi menggunakan NH OH sebelum digunakan sebagai substrat fermentasi. Kondisi terbaik hidrolisis pati diperoleh pada konsentrasi H SO 0,4 M selama 10 menit dengan nilai total gula 257,37 g/l, 24gula pereduksi 229,38 g/l, dextrose equivalent (DE) 89,59 dan HMF 0,57 g/l. Selain itu kondisi terbaik hidrolisis serat diperoleh pada konsentrasi H SO 1,0 M selama 20 menit dengan nilai total gula 79,74 g/l, gula pereduksi 70,88 g/l, 24DE 88,99 dan HMF 0,0142 g/l. Hidrolisat asam yang paling sesuai digunakan sebagai substrat fermentasi adalah darihidrolisis satu tahap tanpa pemisahan serat yang menghasilkan etanol dengan konsentrasi 5,7 % (b/v) dan rendemen etanol 30,5 (b/b). Hasil tersebut tidak berbeda jauh dengan hidrolisis enzimatis yang mengasilkan rendemen etanol 30% (b/b).

Co-Authors Adisalamun Adisalamun Agus Setiyono AHMAD JUNAEDI Aisyah, Nadira Akhmad Endang Zainal Hasan Anas Miftah Fauzi Andi Nurul Aulia Sari Andika Susantri Ani Suryani Ani Suryani Anja Meryandini ANJA MERYANDINI Anja Meryandini Anja Meryandini Anja Meryandini Anja Meryandini ANJA MERYANDINI Anja Meryandini Anja Meryandini Anja Meryandini Anja Meryandini Anuraga Jayanegara APRILIA NAOMI Aprilia Nurhasna Aris Purwanto Asep Wawan Permana Asep Wawan Permana, Asep Wawan Asrianti Basri Asrianti Basri Ayu Rahayu SARASWATI Bambang Prasetya Basri, Asrianti Basri, Asrianti Besty Maranatha Birahy, Deford Cristy Bruce A. Welt, Bruce A. Cahyana, Purwa Tri Christina Winarti Christina Winarti Dede Heri Yuli Yanto Dedi Fardiaz Devi Ambarwaty Oktavia Dewi Diniaty Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja Dwi Setyaningsih Eka Putri Eka Ruriani EKA RURIANI EKA RURIANI Elisa Julianti Elly Rosyidah Endang Warsiki Endang Warsiki Erliza Noor Euis Hermiati Evi Savitri Iriani Evi Savitri Iriani, Evi Savitri Faqih Udin FARAH FAHMA Februadi Bastian Feri Kusnandar Ferry Mutia FERY MUTIA Fiora Helmi Frangky J. Paat Glisina Dwinoor Rembulan Hadi Karia Purwadaria, Hadi Karia Hari Eko Irianto Hartami Dewi Hartrisari Hardjomidjojo Hasrul Satria Hasrul Satria, Hasrul Ifah Munifah Ika Amalia Kartika Ilham Marvie Indah Yuliasih IRA ERDIANDINI, IRA Irmayanti Irmayanti Irmayanti Irmayanti, Irmayanti Irvan Anwar Iskandar Lubis Kendri Wahyuningsih Kendri Wahyuningsih, Kendri Khaswar Syamsu Kirana Sanggrami Sasmitaloka Kurniawan Yuniarto Kurniawan, Dede Yudo Laily, Noer Lala Nurmala Lisman Suryanegara M. EDY SOFIYANTO Machfud Machfud Mala Nurilmala Manalu, Lamhot Maranatha, Besty Marimin , Matasik, Delfania Maya Melati Mohamad Syamsul Ma’arif Mulyorini Rahayuningsih Nastiti Siswi Indrasti Nida El Husna Niken Financia Gusmawati NISA RACHMANIA MUBARIK Nisfatin Shofiana Nur Richana Nuri Andarwulan Odi Andanu Ono Suparno Paramuji, Muji Pasaribu, Fatimah J Petrus Adam Pramana, Yanuar Sigit Purwanto, Yanuar Jarwadi Purwoko Purwoko Pustika Adwiyani RAMADHAN, ZULFA AULIA Ratna Ekawati Ratna Ekawati Ridwansyah Ridwansyah Rijanti Rahaju Maulani Rijanti Rahaju Maulani Rijanti Rahaju Maulani Rini Purnawati Rismawati . RM Muhammad Nur Fauzan Roh santoso Ronny Soputan Rosyidah, Elly Ruka Yulia SAFITRI NURLAELA Salfauqi Nurman, Salfauqi Sanbein, Primus Sapta Raharja Savira Astri Adriana Setyo Purwanto Singgih Wibowo Sitti Rahbiah Akram Stanislaus Aditya Agung Sugiyanta Sukard Sumarni Nompo Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Suyono, Meisy Nawang Taufik Hidayat Tjahja Muhandri Tryanisa Ridla Amalia Utomo, Prasetyo Hadi Vestika Iskawati Wahidul Hijah Wahyu Widosari Wawan Hermawan Widiatmaka Widiatmaka Widosari, Wahyu WULAN, RAHAYU Yandra Arkeman Yaya Rukayadi Yuana Susmiati Yulia, Ruka YULIANA, META YULIN LESTARI Yulistika, Efri Yunus Triyonggo, Yunus Yusmiati Yusmiati Zahrani, Siti Mutia

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