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Prida Novarita Trisanti
Departemen Teknik Kimia Institut Teknologi Sepuluh Nopember Surabaya
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EKSTRAKSI SELULOSA DARI SERBUK GERGAJI KAYU SENGON MELALUI PROSES DELIGNIFIKASI ALKALI ULTRASONIK Prida Novarita Trisanti; Sena Setiawan H.P.,; Elysa Nura’ini; Sumarno Sumarno
Jurnal Sains Materi Indonesia Vol 19, No 3: APRIL 2018
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1100.152 KB) | DOI: 10.17146/jsmi.2018.19.3.4496

Abstract

Kayu sengon (Albizia chinensis) merupakan salah satu jenis kayu yangmelimpah di Indonesia. Kandungan selulosa pada kayu sengon cukup tinggi sebesar 41,17%. Proses ekstraksi selulosa dari kayu sengon dapat dilakukan melalui proses delignifikasi atau penghilangan kandungan lignin. Umumnya, proses delignifikasi dilakukan dengan larutan alkali pada konsentrasi tinggi, suhu tinggi dan waktu yang lama.Agar konsentrasi alkali yang digunakan rendah dan waktu lebih pendek, proses delignifikasi dapat dilakukan dengan bantuan ultrasonik. Tujuan dari penelitian ini adalah mengetahui pengaruh kondisi operasi (suhu dan waktu) proses delignifikasi dengan ultrasonik terhadap kadar selulosa yang diperoleh. Proses delignifikasi dilakukan denganmencampur serbuk kayu sengon (40 mesh) dengan larutan NaOH (0,3M) dengan perbandingan 1:30 (w/v). Kondisi operasi yang digunakan adalah suhu 30 °C dan 40 °C pada berbagai waktu (10menit hingga 70menit). Setelah proses delignifikasi, produk di bleaching dengan NaOCl hingga warnanya menjadi putih. Analisis yang dilakukan antara lain adalah metode Chesson, X-Ray Diffraction (XRD) dan Scanning Electron Microscopy (SEM). Hasil dari analisa menunjukkan bahwa kristalinitas tertinggi diperoleh sebesar 77,05 % pada 40 °C selama 30 menit dan kadar lignin turun hingga mencapai 0,41%.
Synthesis and Characterization of Superabsorbent Polymer (SAP) based on Starch and Acrylic Acid Trias Ayu Laksanawati; Adhitiyan Basuki; Maulana Ma'ruf; Prida Novarita Trisanti; Sumarno Sumarno
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Effect of Ultrasound for Reducing Sugar Production from Cassava Starch Bramantyo Airlangga; Febriyanto Puspasari; Prida Novarita Trisanti; Sumarno Sumarno
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Total Reducing Sugar Production from Cassava Starch Degradation by Hydrothermal Process and Sonication Treatment Febriyati Puspasari; Bramantyo Airlangga; Desi Puspita Sari; Gilang Perdana Adyaksa; Prida Novarita Trisanti; Sumarno Sumarno
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Pengaruh Perubahan Suhu pada Properti Adsorpsi dan Desorpsi Thermosensitive NIPAM-co¬-DMAAPS Gel Jovanio Bosco Chu Gomes Amaral; Desi Ratnasari; Prida Novarita Trisanti; Sumarno Sumarno; Eva Oktavia Ningrum
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Adsorbent gels with ability to absorb and desorb ion simultaneously with temperature swing are synthesized by free radical copolymerization reaction of N-isopropylacrylamide (NIPAM) and N,N-dimethyl(acrylamidopropyl)ammonium propane sulfonate (DMAAPS). In this study, NIPAM acts as a thermosensitive agent and DMAAPS as an adsorbent agent. The purposes of this research are to investigate the effects of temperature on the swelling, adsorption and desorption behaviors of ion onto thermosensitive NIPAM-co-DMAAPS gel, and to study the relationship between these behaviors. NaNO3 solution was selected as the target solution and used in swelling, adsorption and desorption test. Swelling test was done by measuring diameter of the cylindrical gel after and before immersion in the NaNO3 solution for 12 hours. The result revealed that at high temperature, the amount of ion adsorbed onto the gels was low. On the contrary, the gel exhibited a high degree of swelling and high amount of ion desorbed from the gel. Moreover, higher concentration of NaNO3 solution resulting in the higher value of the swelling degree, adsorption and desorption ability. Based on the relationship between the swelling properties and adsorption properties, it can be concluded that at a lower degree of swelling, the amount of ion adsorbed onto the gels showed a constant value. However, the amount of ion adsorbed decrease with further increasing the swelling degree.
Co-Authors Adhitiyan Basuki Bramantyo Airlangga Desi Puspita Sari Desi Ratnasari Elysa Nura’ini Febriyanto Puspasari Febriyati Puspasari Gilang Perdana Adyaksa Jovanio Bosco Chu Gomes Amaral Maulana Ma'ruf Sena Setiawan H.P., Sumarno Sumarno Sumarno Sumarno Sumarno Sumarno Trias Ayu Laksanawati