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All Journal Biota Analit: Analytical And Environmental Chemistry
Faranida, Qori Hikmah
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Energy Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology

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Synthesis and Characterization of Edible Film Based on Glucomannan from Local Porang Tubers with a Combination of Carrageenan and Sorbitol as Plasticizer Afriyani, Hapin; Herasari, Dian; Amrulloh, Hanif; Faranida, Qori Hikmah; Ramadani, Arip; Afifah, Nida Rafa; Indriani, Marcella; Theledi, Karim; Aluko, Olukemi
Biota Vol 10 No 2 (2024): Jurnal Biota 2024
Publisher : Faculty of Science and Technology Universitas Islam Negeri Raden Fatah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/Biota.v9i2.16821

Abstract

In this study, edible films were made from glucomannan from local porang tubers, carrageenan, and sorbitol as the plasticizer. This research method begins with the making of modified porang flour with three immersion treatments, namely control (A), 10% lime solution (B), and modified lime and mocaf starter fermentation (C) to reduce oxalate levels. Plasticizers were added with variations of carrageenan 2;3;4%, and sorbitol 1;2;3;4; and 5 g. The results showed that the modified lime immersion and fermentation treatment reduced calcium oxalate levels, and the highest yields of glucomannan were 2.58% and 10.07 g. The FTIR analysis results of the isolated glucomannan showed that the spectrum formed by the presence of O-H functional groups, CH2 groups, C-O-C groups, absorption areas of 805 cm-1 and 872 cm-1 indicated the presence of the main constituent of glucomannan, namely β-pyranose. In comparison, the characteristics of the edible film obtained an average thickness between 0.32–1.50 mm. The highest thickness was obtained in the composition of the addition of 3% carrageenan and 4 grams of sorbitol variation C. The percentage of water resistance of edible film variations A and C ranged from 10.04% - 22.02%. Variations A and C with a composition of 2% carrageenan and 1 gram of sorbitol, the edible film is completely degraded. The surface morphology of the edible film obtained from variation A with a concentration of 2% carrageenan and 5 grams of sorbitol showed a slightly porous surface.
PYROLYSIS OF PALM OIL MILL EFFLUENT (POME) USING MODIFIED LAMPUNG NATURAL ZEOLITE WITH THE SI/AL RATIO OF 1 AS CATALYST Pandiangan, Kamisah Delilawati; Gom, Frangky Gom; Fajriyati, Nurul; Sabil, Muhammad; Tasyadinia, Tasyadinia; Luthfia, Hanna; Faranida, Qori Hikmah; Ilim, Ilim; Simanjuntak, Wasinton
Analit : Analytical and Environmental Chemistry Vol. 9, No. 02 October (2024) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v9i02.199

Abstract

In this research, palm oil mill effluent (POME), was pyrolized using a modified Lampung natural zeolite (LNZ) catalyst. Modification was conducted by reducing the Si/Al molar ratio to 1 by mixing certain mass of food grade aluminum food dissolved in 1.0 M NaOH solution and certain mass of LNZ. The mixture was homogenized using a magnetic stirrer, left at room temperature for 12 hours, and finally subjected to hydrothermal crystallization at 100 ºC for 72 hours. The solid sample produced was dried and calcined at 600 °C for 6 hours then characterized using X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) techniques to evaluate the formation of zeolite-A. The BCO produced from the pyrolysis experiment was analyzed using gas chromatography-mass spectrometry (GC-MS), revealing the presence of hydrocarbon as the main components (70%), suggesting the promising potential of the catalyst for further investigation.
Co-Authors Afifah, Nida Rafa Afriyani, Hapin Aluko, Olukemi Amrulloh, Hanif Dian Herasari, Dian Fajriyati, Nurul Gom, Frangky Gom Ilim, Ilim Indriani, Marcella Luthfia, Hanna Pandiangan, Kamisah Delilawati Ramadani, Arip Sabil, Muhammad Tasyadinia, Tasyadinia Theledi, Karim Wasinton Simanjuntak