Uji Kualitas Minyak Goreng Berdasarkan Perubahan Sudut Polarisasi Cahaya Menggunakan Alat Semiautomatic Polarymeter
DOI:
https://doi.org/10.26418/pf.v1i2.3014Abstract
Telah dilakukan uji kualitas minyak goreng dengan parameter perubahan sudut polarisasi cahaya menggunakan alat semiautomatic polarymeter. Minyak goreng yang digunakan adalah minyak goreng dari kelapa sawit dan minyak goreng dari kelapa. Minyak goreng yang diuji, dipanaskan terlebih dahulu sampai suhu 200 °C, dengan variasi hingga lima kali pemanasan. Nilai sudut polarisasi yang diperoleh untuk minyak goreng dari kelapa sawit tanpa pemanasan yaitu 33,38°, dan untuk 5 kali pemanasan yaitu 37,51°, minyak goreng kelapa tanpa pemanasan sudut polarisasinya yaitu 26,83°, dan dengan 5 kali pemanasan yaitu 29,55°. Dari hasil penelitian dapat disimpulkan bahwa kualitas minyak goreng yang paling baik adalah minyak goreng dengan sudut polarisasi yang paling kecil. Hal ini dibuktikan dengan nilai bilangan peroksida pada minyak goreng yang cenderung meningkat setelah minyak goreng dipanaskan. Untuk minyak goreng dari kelapa sawit, bilangan peroksida sebelum minyak dipanaskan sebesar 7,26 MgO2/Kg, setelah 5 kali dipanaskan sebesar 10,27 MgO2/Kg. Untuk minyak kelapa sebelum dipanaskan bilangan peroksida adalah 0,63 MgO2/Kg, dan setelah 5 kali dipanaskan sebesar 12,20 Mg O2/Kg.
Kata kunci: Sudut Polarisasi, Minyak Goreng, Semiautomatic Polarymeter, Bilangan Peroksida.
Downloads
Published
Issue
Section
License
Copyright Notice using Creative Commons License for an Online Journal
The online journal Prisma Fisika operates under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0). This copyright notice serves to inform authors, readers, and users of the terms and conditions regarding the use and distribution of the journal's content. By submitting or accessing the content, you agree to the following:
1. Content License:
a. All articles, images, and supplementary materials published in Prisma Fisika are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
b. This license permits users to copy, distribute, and adapt the content for non-commercial purposes, provided appropriate credit is given to the original authors and the journal.
c. If you remix, transform, or build upon the content, you must distribute your contributions under the same license as the original.
2. Attribution:
a. When using or sharing content from Prisma Fisika, you must properly attribute the original authors and the journal.
b. Include the title of the article, the names of all authors, Prisma Fisika, the year of publication, the volume/issue number, and the specific page numbers.
c. Provide a hyperlink to the original article on Prisma Fisika's website, if applicable.
3. Non-Commercial Use:
a. The content published in Prisma Fisika may not be used for commercial purposes without obtaining explicit permission from the copyright holders.
b. Commercial use includes, but is not limited to, reproduction or distribution of the content for financial gain, selling or licensing the content, or using the content in products or services that are sold or monetized.
4. ShareAlike:
a. If you adapt or remix the content from Prisma Fisika, you must distribute your derivative work under the same Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
b. This provision ensures that any modifications, adaptations, or remixes of the content maintain the same open licensing framework.
5. Disclaimer:
a. The views expressed in articles published in Prisma Fisika are solely those of the authors and do not necessarily reflect the opinions or policies of the journal, its editorial board, or affiliated institutions.
b. Prisma Fisika and its editors are not liable for any errors, omissions, or damages arising from the use or interpretation of the published content.
Please note that this Copyright Notice does not supersede any additional permissions or restrictions that may be granted by individual authors or copyright holders for their specific content within Prisma Fisika. For any questions or requests regarding the use of the journal's content, please contact the editorial team at prismafisika@physics.untan.ac.id.
By accessing or contributing to Prisma Fisika, you agree to comply with the terms of this Creative Commons license. Violation of these terms may result in legal consequences as governed by applicable copyright laws.
Date: 24-05-2023
Prisma Fisika
Email: prismafisika@physics.untan.ac.id
