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Fitriyanti
Universitas Islam Negeri Alauddin Makassar
Physics

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STUDI KUALITAS EDIBLE FILM BERBASIS LIMBAH AIR CUCIAN BERAS (ORYZA SATIVA) DAN PEKTIN KULIT PEPAYA (CARICA PAPAYA L.) DENGAN PENAMBAHAN GLISEROL Siti Asyiqah Azizah Ilham; Rahmaniah; Fitriyanti
JFT : Jurnal Fisika dan Terapannya Vol 9 No 1 (2022): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i1.25810

Abstract

The edible film is a thin layer that can be used as a food coating made from natural ingredients, which functions as a barrier to mass transfer such as moisture and oxygen. In minimizing environmental problems due to synthetic plastic waste, research was carried out on the manufacture of edible films from rice washing water waste (Oryza sativa) and papaya peel pectin (Carica papaya L.) with the addition of glycerol. This study aims to determine the quality of the mechanical properties and physical properties of edible films. The mechanical test includes the tensile strength test, elongation test, and absorption test for water resistance, while the physical test includes the FTIR test. In this study, the results of the tensile strength test on the sample met SNI 7818:2014. The results of the sample elongation test have complied with SNI 7818:2014 and JIS, 1975. The lowest water absorption was obtained in the sample with the addition of 5% glycerol. The FTIR results of the samples showed that there were no new functional groups and they still had distinctive groups in their pectin and CMC structures.
Identifikasi Zona Rawan Longsor Menggunakan Metode Geolistrik Resistivitas Di Desa Pao Kecamatan Tombolo Pao Kabupaten Gowa Muh. Adrian; Muh. Said L.; Fitriyanti
JFT : Jurnal Fisika dan Terapannya Vol 9 No 2 (2022): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i2.29518

Abstract

This research aims to identify landslide-prone zones using the geoelectric resistivity method in Pao Village, Tombolo Pao District, Gowa Regency. The configuration used for data collection in the field is the Wenner-Schlumberger configuration using four the number of lines. The result of research indicates that the first line average is founded in each layer which is suspected to occur in a layer of soil and igneous rock in the form of lava with 2.10 Ωm- 12.7 Ωm in resistivity value. In the second line, the average is founded wet soil, dry soil and igneous rock with 1.26 Ωm – 11.1 Ωm in resistivity value. The third line average is an established layer of soil and lava with 2.18 Ωm – 6.51 Ωm in resistivity value. The fourth line is suspected to occur layer of soil and lava with 1.59 Ωm – 8.50 Ωm in resistivity value and 1.25 m – 15.9 m in depth. It can be concluded that the first and fourth lines, based on the resistivity value, are generated to occur in a layer of soil. Igneous rocks are supported by topography, slup reaching 30o – 35o. Meanwhile, the second and third lines do not happen landslide potential because the resistivity results contain igneous rock. Still, the topography, vegetation, and slup are not the landslide-prone category.
Co-Authors Muh. Adrian Muh. Said L Rahmaniah Rahmaniah Siti Asyiqah Azizah Ilham