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Journal : Natural Science: Journal of Science and Technology

PRODUKSI BIOETANOL TONGKOL JAGUNG (ZEA MAYS) DARI HASIL PROSES DELIGNIFIKASI Fitriani, Fitriani; Bahri, Syaiful; Nurhaeni, Nurhaeni
Natural Science: Journal of Science and Technology Vol 2, No 3 (2013): Volume 2 Number 3 (December 2013)
Publisher : Univ. Tadulako

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Abstract

The research about ?The Production of Bioetanol in Corn cob waste (Zea Mays) of Resulting The Delignation Process?. The aim of this research  is to find out the highest weight of cellulose which contained in the corn cob waste. Then Cellulose which has been obtained, it was done on delignification process by using NaOH in variety of soaking time. To achieve the goal, then the application of the treatment effect of soaking time on corn cob waste powder on weight of cellulose was done. On the effect of soaking time on the powder of corn cob waste was applied   the six levels each 12 hours, 16 hours, 20 hours, 2 hours, 28 hours and 32 hours. Based on the result, it showed that the weight of cellulose is 5,729 g at 28 hours on soaking time. The use of soaking time which was applied for delignification process NaOH on the yield of cellulose. Cellulose of hydrolysis corn cob waste powder with H2SO4 10% and the result of fermentation of hydrolysis yeast cells immobilized. The level of glukosa is 43 % and 6 % for etanol. The result of sugar fermentation is done at the room temperature for 48 hours.
PENGARUH SUHU KALSINASI TERHADAP KOMPOSISI KIMIA ABU KULIT DURIAN DAN PROSPEK PEMANFAATANNYA SEBAGAI KATALIS DALAM REAKSI METANOLISIS MINYAK KELAPA SAWIT Nurhaeni, Nurhaeni; Nurakhirawati, Nurakhirawati; Tri Rahayu Tiaradewi, Tri Rahayu Tiaradewi
Natural Science: Journal of Science and Technology Vol 5, No 1 (2016): Volume 5 Number 1 (March 2016)
Publisher : Univ. Tadulako

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Abstract

Telah dilakukan penelitian yang bertujuan untuk mengetahui pengaruh suhu kalsinasi terhadap komposisi kimia abu kulit durian dan prospek pemanfaatan abu kulit durian sebagai katalis dalam reaksi metanolisis minyak kelapa sawit. Penelitian ini dilakukan menggunakan rancangan acak lengkap (RAL), dengan variasi suhu kalsinasi yaitu 600oC, 700oC, 800oC, 900oC dan 1000oC. Abu kulit durian hasil kalsinasi kemudian digunakan pada reaksi metanolisis pada suhu 50-70oC selama 3 jam, dengan perbandingan molar minyak dan metanol yaitu 1:6. Hasil penelitian menunjukkan bahwa suhu kalsinasi sangat mempengaruhi komposisi kimia dari abu kulit durian. Peningkatan senyawa-senyawa fase kristal terjadi seiring meningkatnya suhu kalsinasi sampai 800oC. Namun, ketika suhu kalsinasi lebih dari 800oC senyawa-senyawa fase kristal menurun. Abu kulit durian dapat dimanfaatkan sebagai katalis dalam reaksi metanolisis minyak kelapa sawit karena dapat menghasilkan metil ester asam lemak.
PENGGUNAAN MALTODEKTRIN UNTUK MENINGKATKAN MASA SIMPAN LIKOPEN BUAH SEMANGKA (CITRULLUS VULGARIS SCHARD) sukriadi, sukriadi; Mappiratu, Mappiratu; Nurhaeni, Nurhaeni
Natural Science: Journal of Science and Technology Vol 2, No 1 (2013): Volume 2 Number 1 (March 2013)
Publisher : Univ. Tadulako

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Abstract

Research using maltodextrin as the coating in order to increase the shelf life of watermelon lycopene has been done. This study aims to estimate the shelf life of watermelon lycopene capsules in packaging with the addition of maltodextrin coating. Achievement of the goals has been the separation of lycopene from watermelon flesh, followed by drying the product of lycopene using solar dryers, extraction of pure lycopene lycopene separation using a solvent mixture of N coarse-Hekasana: Aceton with a ratio of 2: 1, followed by mixing pure lycopene with adsorbent maltodextrin with a ratio of 25: 75% and storage in an oven at 40 and 50oC. Lycopene levels are determined every 24 hours for 10 days using the spectrophotometric method. The resulting data is used to predict the shelf life of lycopene in capsule packaging. The results obtained indicate a shelf life of lycopene at 15, 20, 25, 30, 35, 40, 45, 50, 55, and 60 ° C  are 631, 549, 478, 416, 362, 315, 276, 240, 209 and 181 days respectively.
Co-Authors Abd. Rahman Razak Abd. Rasyid Syamsuri Abdul Rahman Razak Adini, Muhammad Hifdzi Ahmad Hidayat Ahmad Ridhay Aji, Rizal Ibrahim Ali Djamhuri Amiluddin, Muh. Rafiq Amirullah -, Amirullah Analisa Analisa, Analisa Andi Nursyafinah Andi Saifah aras, faulyna arliana, selvy armon, ariani Asri Wulandari Azhar, Amelia Jagaddhita azizah, wafik Bambang Sardi Basri Basri Bayu Nugraha Budiman, Haldi Cipta, Subhan Panji Deddy Firman Dewi Indriany Dwi Juli Puspitasari Dwi Putri Rusman, Ayu Eka Dwiyanti Tombilayuk Erwin Abdul Rahim Fadliyah, Malikhatul Fitriani Fitriani Habibah, Winda Akhla Haqoiroh, Haqoiroh Hariningsih, Yetti hasyim, hasyim Hermawan, Hildan Bagus Ila Israwaty Indrawan, Yossy Wahyu Irfandi Irfandi, Irfandi Irpan Irpan Jaya Hardi Jumaroh, Jumaroh Kumba Digdowiseiso, Kumba Laksono Trisnantoro Lestari, Yayuk Puji Lindayati Djamil, Lindayati Luviriani, Eva Mahfud Mahfud Makhrajani Majid Mambang Mappiratu Mappiratu Mappiratu Mappiratu Maulana, Asad Maulana, Maghfur Melda, Melda Miswan Moh. Mirzan Mohammad Sidiq Mudinillah, Adam Muhammad Arif Muhammad Danial Muhammad Zulfadhilah Musafira Musafira Musafira Musafira Naparin, Husni Nasution, Annio Indah Lestari Neni Sri Wahyuni Nasir Ni Ketut Sumarni Novrina Rasinta Ranonto Nur Afni I. Hanapi, Nur Afni I. Nur Alam Nur Alam Nur Iman Nurakhirawati Nurakhirawati Nurul Bima Khasanah Ofelman Talunoe Oktavia, Samita Prasetya, M. Riko Anshori Prastya, Septyan Eka Putri Hardiyanti Ramadhan, Alman Shafly Rezeki, Yuliarti Risdianti, Risdianti Risma Risma, Risma Rudy Ansari, Rudy Rusidah, Rusidah safry, sarah Sembiring, Rinawati Siti Helmyati Solly Aryza Sri Adeningsih sukriadi sukriadi SYAIFUL BAHRI Tabang, Syamsurijal Tri Rahayu Tiaradewi Tri Rahayu Tiaradewi, Tri Rahayu Tiaradewi triyanda, ayu Tuti Alawiyah Ummi Rahayu, Ummi Usman Usman waslia, waslia welso, welso Widiawati, Erika Willem, Ilham Yuniar Yuniar Yuwindry, Iwan