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Cut Nurul Fitriyani
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Materials Science & Nanotechnology

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MODIFIKASI PLA/KITOSAN DENGAN ESSENSIAL OIL UNTUK APLIKASI ANTIBAKTERIAL Teuku Rihayat; Cut Nurul Fitriyani
Jurnal Sains dan Teknologi Reaksi Vol 16, No 1 (2018): Jurnal Sains dan Teknologi Reaksi
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v16i1.1482

Abstract

Minyak esensial kayu manis(CEO) adalah zat anti mikroba alami yang sedang diselidiki untuk kemasan makanan sebagai pengganti bahan kimia sintetis karena kekhawatiran konsumen atas keamanan pangan. Pada penelitian ini Poli asam laktat (PLA) dan kitosan berhasil dimodifikasikan dengan minyak essensial oil (CEO)pada konsentrasi(1,5%,2%,2,5%,dan3%v/v) yang membentuk serat-serat komposit dengan menggunakan metode electro spinning sederhana. Morfologi dari serat-serat komposit dapat dilihat dari PLA/CS-CEO-2.5 menunjukkan stabilitas yang baik dari CEO, sehingga aktivitas anti mikroba peningkatan dibandingkan dengan campuran lainnya. Serat PLA/CS-CEO menunjukkan tingkatin aktivasi jangka panjang yang tinggi terhadap Escherichia coli dan Staphylococcusaureus karena pelepasan berkelanjutan CEO, menunjukkan bahwa maju PLA/CS-CEO fibers memiliki potensi besar untuk aplikasi kemasan makanan aktif.
PAPER-ZNO NANO COMPOSITE PAPER FOR ANTIMICROBA PACKAGING APPLICATIONS Cut Nurul Fitriyani; Teuku Rihayat; Aida Safitri; Shafira Riskina; Nurhanifa Nurhanifa
Jurnal Sains dan Teknologi Reaksi Vol 17, No 2 (2019): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v17i2.1488

Abstract

Development and innovation for both antimicrobial functional packaging (active packaging and nanocomposite materials) from renewable polymers. This study aims to include ZnO nanoparticles in PLA (Polylactic Acid) paper layers in antimicrobial packaging applications. The method used for the manufacture of ZnO nanoparticles is the precipitation method and heating method in the manufacture of PLA-ZnO nanocomposite by varying 0.5%, 2% and 3.5% ZnO NP. The results obtained are in SEM images showing that the nanoparticles are distributed homogeneously on the surface. Antimicrobial tests showed that nanocomposite worked effectively in deactivating E. coli and S. aureus. Furthermore, E. coli was found to be more susceptible to this type of nanocomposite, showing a reduction of 3.4 log to 3.5% ZnO loading in the PLA layer. Based on the results, it can be explained that the ZnO nanoparticles have several active mechanisms, and different antimicrobial testing methods can only activate some of the mechanisms. In addition, nano-activated packaging materials for food contact applications and market prospects are analyzed.
Co-Authors Aida Safitri Nurhanifa Nurhanifa Shafira Riskina Teuku Rihayat