Article Per Year (5 Year)
p-Index From 2019 - 2024
0.817
P-Index
This Author published in this journals
All Journal Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Journal of Technomaterial Physics International Conference on Sciences Development and Technology
Awan Maghfirah
Universitas Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
Effect of Temperature Variations Gelatinizing of Biodegradable Plastic Starch Porang (Amorphophallus Oncophyllus) with Glycerol Plasticizers on Its Characterization Sudiati Sudiati; Awan Maghfirah; Muhammad Zaidun Sofyan; Ridha Syafira; Ayu Mitri
International Conference on Sciences Development and Technology The 2nd ICoSDTech 2022
Publisher : International Conference on Sciences Development and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The development of plastic polymers is widely used in the food and non-food industries, biodegradable plastics derived from porang starch into environmentally friendly plastics. Plastics are made by adding chitosan and adding a 60% glycerol plasticizer by varying the gelatinizing temperature in the manufacturing process. The gelatinization temperature was used in the process when the starch granule was heated by adding chitosan and glycerol so that the development of starch granules expand and produced a viscous liquid to provide the desired solution quality. The variations in the gelatinization temperature used are temperatures of 70 ˚C, 80 ˚C, and 90 ˚C, then mechanical, physical and characterization tests were carried out on biodegradable plastics. The effect of the gelatinization temperature of biodegradable plastics on the strong value of Tensile is getting lower the temperature, the higher the tensile strength value until it reaches a value of 0.7034 Mpa and at the elongation value which decreases with the higher the gelatinization temperature. The highest elongation value was 124.96% at a gelatinizing temperature of 70 ˚C. Meanwhile, the degradation test showed a decrease in mass every week and began to degrade in the fourth week, which took 28 days. SEM analysis of biodegradable plastics showed that there are white parts that clump together, because the glycerol plasticizer has a thick texture so that it is not dissolved evenly. The spectra results showed no change in the wave number of the FT- IR spectrum of the starch, chitosan, and glycerol spectrums with O-H, C-H, and N-H functional groups.
Enhancing Biodegradable Plastics' Physical Properties Through the Incorporation of Talas Beneng Starch (Xanthosoma undipes K. Koch) and Glycerol as a Plasticizer Awan Maghfirah; Sudiati Sudiati; Silvia Ramadina; Dwi Ajeng Pratiwi
Journal of Technomaterial Physics Vol. 5 No. 2 (2023): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v5i2.12390

Abstract

The manufacture of biodegradable plastics with the main ingredients of talas beneng (Xanthosoma Undipes K. Koch) starch, chitosan, and glycerol as a plasticizer has been carried out by various additions of starch and reduction of chitosan. Initial assessment of talas beneng starch reveals: starch content - 20.51%, water content - 8.58%, fat content - 12.71%, and protein content - 3.51%. Physical testing of biodegradable plastic produces thickness values ranging from 0.166 mm to 0.234 mm, tends to meet JIS Z-1707: 2019 standards, density value is 1.674 g/cm3, and the lowest water absorption value is 20.51%, both meet SNI 7188: 2016 standards, and there is a decrease in mass every week for 28 days in the biodegradation test.
The Effect of Using a Combination of Sorbitol and Glycerol Plasticizers on the Characterization of Edible Film from Porang (Amorphophallus oncophyllus) Starch Awan Maghfirah; Sudiati Sudiati; Silvya Nurrein K. Br Sitepu; Meutia Widyanti
Journal of Technomaterial Physics Vol. 5 No. 2 (2023): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v5i2.12397

Abstract

Edible films present an eco-friendly alternative for food packaging compared to traditional plastic materials. This study investigates the effects of glycerol and sorbitol plasticizers on the properties of edible films. The research involves crafting these films using porang (Amorphophallus Oncophyllus) starch. Glycerol plasticizers were incorporated at a concentration of 100%, while sorbitol was utilized at varying levels (0%, 25%, 50%, 75%, 100%) to evaluate their impact on film characteristics. The films were produced using the melt intercalation method at a gelatinization temperature of 80°C and a firing temperature of 70°C. Notably, the most favorable physical test outcomes were observed with adding 100% sorbitol, including thickness, density, water absorption, and degradability improvements. Meanwhile, adding 25% sorbitol yielded the highest tensile strength and elongation values.
Teacher Upgrading Skill in Preparing Materials and Examination Based on Images in Sibolga City Andriayani Andriayani; Cut Fatimah Zuhra; Awan Maghfirah; Maulida Yanti; Saharman Gea; Khatarina Meldawati Pasaribu; Averrous Fazlurrahman Piliang
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (277.089 KB) | DOI: 10.32734/abdimastalenta.v5i2.5495

Abstract

There are 61 primary/ibtidaiyah schools, 18 junior high schools, and 18 senior high schools in the city of Sibolga, which is located in Teluk Tapian Nauli, with a total number of teachers of about 2000. This is in line with the vision of Sibolga city (2016-2021) in order to create a stable, advanced, and successful Sibolga City by producing highly competitive quality human beings in order to create a harmonious, peaceful, secure and unified society. As mentioned above, one of its mission points is to prepare human resources (HR) that have integrity, reliable, competitive, expert in science and technology so that they able to compete in the global job market. As the education stakeholder, Sibolga Education and Culture Official has plan many outstanding work programs such as made a collaboration in partnership with the Universitas Sumatera Utara community service team. As a result, based on field observations and discussions, it was known that one of the obstacle that facing by the teachers in Sibolga is not being able to provide teaching materials and also picture-based examination questions as contained in the question grid. Currently, there are several technology-driven applications that can be used to make images or graphics creating process easier. Two of them are, GeoGebra Classic that used to create graphics and images in mathematics and Chemdraw that used to create structure images that related to chemistry. In addition word optimization training was also conducted to optimize teacher on preparing teaching materials with Ms. word.
Co-Authors Andriayani Andriayani Averrous Fazlurrahman Piliang Ayu Mitri Cut Fatimah Zuhra Dwi Ajeng Pratiwi Khatarina Meldawati Pasaribu Maulida Yanti Meutia Widyanti Muhammad Zaidun Sofyan Ridha Syafira Saharman Gea Silvia Ramadina Silvya Nurrein K. Br Sitepu Sudiati Sudiati Sudiati Sudiati