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All Journal JOURNAL OF COASTAL DEVELOPMENT Jurnal Teknik Kimia USU Jurnal Teknologi Pangan Jurnal Teknik Kimia Jurnal Fisika Unand Jurnal Ilmiah Giga Briliant: Jurnal Riset dan Konseptual JIIP (Jurnal Ilmiah Ilmu Pendidikan) AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Pengbdian Teknik Mesin Biomedical and Mechanical Engineering Journal Jurnal Teknik Kimia USU Jurnal Indonesia Sosial Sains Serambi Engineering
Titi Susilowati
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Perbandingan Efektivitas Ekstraksi Pektin dari Kulit Durian dengan Bantuan Gelombang Ultrasonik dan Metode Konvensional Puspita, Selvia Indah; Sekarlita, Yovita; Kurniati, Ely; Susilowati, Titi; Billah, Mu'tassim
Jurnal Fisika Unand Vol 13 No 3 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.3.427-432.2024

Abstract

Tujuan dari penelitian ini adalah untuk membandingkan ekstraksi pektin kulit durian menggunakan gelombang ultrasonik dan konvensional; untuk mengetahui pengaruh pH larutan HCl dan waktu ekstraksi terhadap yield pektin dan kadar metoksil. Metode penelitian ini menggunakan ekstraksi dengan bantuan gelombang ultrasonik dan konvensional pada frekuensi 20 KHz dan suhu 70oC dengan variasi waktu ekstraksi yaitu 15; 45; 75 menit serta pH larutan HCl 1,5;2,5;3,5. Yield pektin tertinggi diperoleh dengan menggunakan bantuan gelombang ultrasonik pada frekuensi 20 KHz, suhu 70oC selama 75 menit dan pH larutan HCl 1,5 sebesar 7,081% sementara menggunakan metode konvensional dengan kondisi suhu, waktu ekstraksi, dan pH larutan HCl yang sama sebesar 1,8646%. Kadar metoksil terendah diperoleh dengan menggunakan bantuan gelombang ultrasonik pada frekuensi 20 KHz, suhu 70oC selama 15 menit dan pH larutan HCl 1,5 sebesar 5,9% sedangkan menggunakan metode konvensional dengan kondisi suhu, waktu ekstraksi, dan pH larutan HCl yang sama sebesar 6,11%. 
Pemanfaatan Limbah Jerami Padi dalam Pembuatan Edible Film (Kajian Penambahan Lignin dan Sorbitol) E. P. Putra, Ringgo; R. Santoso, Cakrasena; Susilowati, Titi
Jurnal Indonesia Sosial Sains Vol. 4 No. 02 (2023): Jurnal Indonesia Sosial Sains
Publisher : CV. Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jiss.v4i02.782

Abstract

Rice straw is a very abundant lignocellulose agricultural waste in Indonesia. This waste is generally used as much as 31% for animal feed, 7% for industrial purposes, and 62% burned in rice fields. This burning can cause respiratory disorders such as ARI and cancer. Lignocellulose itself is a polysaccharide consisting of lignin, cellulose, and hemicellulose. The lignin content in rice straw can be used for the production of edible film, so as to increase its usefulness and reduce the percentage of incineration of this waste in rice fields. Edible film is a thin layer made from edible materials and laid between food components. The main components constituting edible film are hydrocloids/lipids/composites, fillers, and plasticizers. The use of the addition of a plasticizing agent is to make edible film elastic. The use of this filler is to modify the edible nature of the film you want to produce. Examples of oligomeric substances and fillers are sorbitol and lignin. In this study, sorbitol and lignin materials were added to cellulose biomass materials derived from rice straw. These materials are stirred using a magnetic stirrer at a speed of 400 rpm and a temperature of 65oC for 25 minutes before the mixture is printed on a glass plate. After the edible film is printed and dried, an analysis of tensile strength and degradation of the edible film is carried out. The results showed a decrease in the tensile strength value of edible film with the lowest downward trend in the addition of 3% lignin lignin and 9 ml sorbitol. The results of the % degradation analysis show that the value of % degradation tends to increase without the addition of lignin.
Co-Authors , Resa Damayanti Aisya, Maimunah Nurul Ardiani, Fira Arif Dharmawan, Wahyu Billah, Mu'tassim Billah, Mu’tasim Caecilia Pujiastuti Darmawan, Fairus Rifki Priangga Demy Ayu Candra E. P. Putra, Ringgo Enny Karti Basuki Erwan Adi Saputro Fitriasari, Rima Hajati, Tatiek Sri Ir Latifah Kurniati, Ely L.Urip Widodo, Yohandrik Novel Karaman Latif, Ahmad Sofwan Luluk Edahwati Meldi Ramahdani Intan Pertiwi Melita, Lusia Nada Nopiyanti, Wiwin Nurentama, Fitrian Puspita, Selvia Indah Putri Anggraini, Putri R. Santoso, Cakrasena Ramadhan, Handi Restiana Wisnu Aryati Saktihono, Putri Indrian Sekarlita, Yovita Silvana Dwi Nurherdiana Sri Muljani Sri Rejeki SRIE MULJANI Sudaryati HP Suprihatin Suprihatin Suprihatin Susilowati Sutaryat Trisnamansyah Sutiyono sutiyono sutiyono Syaodih, Cahya Tri Rini Erlita Widayanto, Galih Suci Wulandari, Diah Mahita Nur