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All Journal Jurnal Riset, Inovasi, Teknologi & Terapan
Zaimahwati, Zaimahwati
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Chemical Engineering, Chemistry & Bioengineering Chemistry Industrial & Manufacturing Engineering

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Pembuatan Edible Film Pati Singkong-Kitosan Dengan Penambahan Plasticizer Gliserol Sebagai Plastik Kemasan Amalia, Zayyana; Zaimahwati, Zaimahwati; Zuhra, Zuhra
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 1 (2022): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i1.3700

Abstract

Packaging of food products using edible films plays an important role in protecting foodstuffs from microbial contamination and improving the quality of foodstuffs during storage. The addition of chitosan as an antibacterial with the aim of inhibiting pathogenic microbes that cause food contamination. This study aims to study the effect of increasing the volume of chitosan and glycerol on the characteristics of edible films. In this study, an edible film made from cassava starch-chitosan was made with various compositions of 5:5, 6:4, 7:3, 8:2 and 10:0 using the plasticizer glycerol 1; 1,2; 1.5; 1.7; and 2 ml. Furthermore, the characterization of the edible film was carried out including thickness test, water resistance test, ALT microbial test, FTIR test, and application to carrots to determine the shelf life. Edible film with a composition of 5:5 with a glycerol volume of 1 ml showed the best results, which had a thickness of 0.095 mm, water resistance 60.91%, and the number of colonies was 215 cfu/ml. In the application of edible film, carrots have a shelf life of 5 days, carrots coated with edible film still have good physique. Meanwhile, carrots that are not coated with edible film have fungal growth.
Pembuatan Poliuretan Sebagai Bahan Pelapis Besi Dengan Pengisi Cangkang Kulit Telur Iqbal, Rahmat; Sami, Muhammad; Zaimahwati, Zaimahwati
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 2 (2023): Juni
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i2.4684

Abstract

Research on the manufacture of polyurethane as an iron coating material with an eggshell filler has been done. The purpose of this study was to determine the effect of eggshell weight as an additive on the preparation of polyurethane as an iron coating material and to determine the weight effect of Methylene Diphenyl Diisocyanate (MDI) on the manufacture of polyurethane as an iron coating material with an eggshell filler. By mixing Jatropha oil polyols, Methylene Diphenylene Diisocyianate (MDI), and eggshell, then applied to an iron plate. Polyurethane coatings formed in the analysis of thermal adhesion properties of coatings, Thermal (TGA), functional groups (FT-IR), crystal structures (XRD), and coating morphology (SEM). The results obtained which in addition to the ratio of polyol: isocyanate: eggshell shell of 7: 3: 5% obtained the best results that have the strongest adhesion and has a good mixing structure, and has a heat resistance of 300 0C
Co-Authors Amalia, Zayyana Mochammad Imron Awalludin Sami, Muhammad Zuhra Zuhra