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Journal : Proceeding Biology Education Conference

Produksi Kitosan Secara Enzimatik oleh Bacillus Sampah Perikanan Afifah, Kufah Nur; Koentjoro, Maharani Pertiwi; Prasetyo, Endry Nugroho
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 14, No 1 (2017): Proceeding Biology Education Conference
Publisher : Universitas Sebelas Maret

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Abstract

The ability of Bacillus sp. has been developed by isolation bacteria from fisheries waste to synthesis chitin deaetylase. This microorganism secretes extracellular chitin deacetylase and does not involve cell lysis. Chitin deacetylase has roles as bioconversion which converts chitin to chitosan with deacetylation N-acetylglucosamine residue in chitin. The bioconversion process of chitin into chitosan in this study is occured by Bacillus sp. B3, Bacillus sp. B5, Bacillus sp. B6, and Bacillus sp. B12 through deacetylation enzymatic which is isolated from fisheries waste. The protein component of crude enzyme was measured using Bradford methods with BSA (Bovine Serum Albumin) as standard. The enzyme was purified by ammonium sulfate precipitation. Chitin deacetylase was characterized by measuring isoelectric point, enzyme activity, and protein component. While the fungtional groups of chitosan had characterized by FTIR and measured degree of deacetylation chitosan. The highest enzyme activity was achieved by Bacillus sp. B12 through ammonium sulphate purification at 75-90% fraction is 345.21U/ml with protein content is 0.0512 mg/ml. Chitin deacetylase from fourth Bacillus sp. has an isoelectric point at pH 5. The highest degree of deacetylation chitosan is 67% and the termination of acetyl groups had confirmed by IR spectra.
Pengaruh Masa Simpan dan Jenis Pengikat Grafting terhadap Keberhasilan Grafting Sirsak (Annona muricata) Varietas Ratu Tri Wahyu Hidayat; Ali Mustafa Sidauruk; Rico Hutama Sulistiyo; Buana Susilo; Lengga Nurullah Dalimartha; Eko Chandra Wiguna; Isdiantoni Isdiantoni; Maharani Pertiwi Koentjoro; Endry Nugroho Prasetyo
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 14, No 1 (2017): Proceeding Biology Education Conference
Publisher : Universitas Sebelas Maret

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

Abstract

In nursery technology, the storage of scions always requires approriate optimization of shelf life and good packing This study aims to determine the effect of shelf life and storage materials on viability of soursop (Annona muricata) var. Ratu grafting by applying randomized factorial design with 2 factors: storage time and type of packing materials, with 3 times repeatation. The duration of storage time factor consist of 5 levels: 0 day, 3 days, 5 days, 1 week and 2 weeks meanwhile packing materials factor consist of 2 levels: parafilm and polyethylene. The highest survival rate was obtained at 0 day shelf life time and parafilm as storage material, whereas the lowest one was shown at 2 weeks storage with polyethylene as storage material.
Co-Authors A.A.B. Dinariyana AAB Dinariyana Achmad Bahrul l Ulum, Achmad Bahrul Adrianto, Ratno Adyan Donastin Afifah, Kufah Nur Agus Kusmana Aisyah Virgina Putri Ali Mustafa Sidauruk Ali, Syarif Alisa Qudrotun Munawaroh Alvian Viki Dwi Wijayanto Angelina, Grace Anggara, Dimas Yos Angger Sukma Mahendra Angger Sukma Mahendra Anto Budiharjo Aribowo, Teguh Hady Arida Wahyu Barselia Arifin, Auliyya Intan Mellaniy Arjo, Tri Ramadani Arrad Ghani Safitra Audina, Shafira Zulfa Awwalin, Rodlitul Ayu Sulasari Bagas Dewantara Pratama Putra Bambang Soemardiono Buana Susilo Budi Murtiyasa CATUR RIANI Ciptananda Citrahardhani, Ciptananda DALIMARTHA, LENGGA NURULLAH Darmawan, Dian Rizky Irvan Dewanto, Raden Sanggar Dewi Septanti Dini Ermavitalini Djauhar Manfaat Dwi Nastiti Danarsari Dyah Wulandari Edwin Setiawan Eko Chandra Wiguna Endang Fauziati Erwin Sudarma Evelina, Tri Yulistyawati Fajar Gumelar Fardilla Rizqiyah Farneubun, Hana Carolina Elisabeth Fauzi Ahmad Muda Fellycita Kartika Afriliona Fida Alya Putri Rimansa Filemon, F Firmansyah Achjab, Firmansyah Fitriani, Aprilia Dyah Hafiedz, Adzan Fajar Osceola Hamri, Ahmad Ahsyar Haqq, Annida Harsono Hermanto, Michael Einstein Herni Sudarwati Hidayat, Muhammad Taufiq Hidayatulloh, Achmad Arifudin Hutapea, Reza Jonathan Ida Ekawati Ima Defiana Inayatul Masruroh Isdiantoni Isdiantoni Isdiantoni Isdiantoni Isdiantoni Isdiantoni Isdiantoni Isdiantoni Izzatul Islami Julianto, Mochammad Arief Koriyah, Koriyah Krisdianto, Johanes Krispinus Duma Kristanti Indah Purwani Lengga Nurullah Dalimartha LUTHFIYYAH, ZAYYAN Maharani Pertiwi K Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro Maharani Pertiwi Koentjoro MARIA BINTANG Maryadi Masduki Masruroh, Inayatul Minto Basuki Moh. Rasyid Ridho Mohamad Riyadi Muchlis, Nurfahmi Muhammad Taufiq Hidayat Munif, Tri Haidar Najla, Syarifah Amira Nanda, Luthfiah Nazhirotin, Talitha Syadza Nengah Dwianita Kuswytasari Niki Yuliansari, Niki Noor Nailis Saadah Nur Maulidhaturrafida Nurlita Abdulgani Nurul Jadid Nuryanto, Muhammad Khairul Pawestri, Aulia Puspita Lisdiyanti Putri, Arum Maulinda Rabbani Kharismawan Rabbani Kharismawan Rahma, Rosyida Muthia Rahmawan, Marjori Bethania Ramadhan, Satria Rizky Ramadhani, Izzah Desta Bastian Rena Feri Wijayanti Rico Hutama Sulistiyo Rico Hutama Sulistiyo, Rico Hutama Ronny Isnuwardana Sa’adah, Noor Nailis Saddewisasi, Wyati Saputra, Rudi Savitri, Fania Mutiara Seru, Rian Ananta Pasolang Shavieka, Imada Mella Shovitri, Maya Sidratu Ainiyah Sulistyandari, Utari Sumartinah, Happy Ratna SUSILO, BUANA Suyatmini Syariful Hadi, Muhammad Taufikurrahman, Muhammad Rifki Tri Wahyu Hidayat Tricindra, Dzulhannisa Triono Bagus Saputro, Triono Bagus Ulpah, Rini Wahidatul Unarto, Tirto Utami, Kristiawati Tri Utari Sulistyandari Wardoyo, Paulus Wati, Henny Diana Wawan Suranto WIGUNA, EKO CHANDRA Wijayanti, Sakti Fadi’a YUDI NUR SUPRIADI YULIANA, NUNIEK Yuliatmoko, Bagus Albaranu Zuhratunnisa, Aqilah