SEPTIANI, RADEN RORO ANITA (2025) PENGEMBANGAN PELAPIS KERTAS KEMASAN ROTI TAWAR BERBASIS SELULOSA NANOKRISTAL DARI LIMBAH BATANG PISANG. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYASA.
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Abstract
The increasing demand for sustainable packaging materials has highlighted the need for environmentally friendly alternatives to conventional plastic packaging. This study explored the development of a coating based of using various concentrations of cellulose nanocrystal (CNC) derived from banana stem waste and various treatments of coating layer for paper-based packaging. Banana stem waste, an abundant and underutilized agricultural by-product, was subjected to chemical and mechanical processes to extract CNC. The CNC coating was applied to the surface of kraft papers, which then the physical properties such as thickness, grammage, water contact angle, diffusivity, permeability, and surface smoothness were characterized. The selected coated paper was characterized with FTIR, SEM, and tested specifically as a white bread packaging material, with assessments of its effectiveness in preserving shelf life compared to conventional plastic packaging. The characterized paper results indicated that the thickness ranged from 0,25 to 0,33 mm. The grammage ranged from 90,00 to 95,80 g/m2. The water contact angle ranged from 50,36 to 95,76o. The diffusivity ranged from 0,02 to 0,45 cm/s. The permeability ranged from 2,59 to 60,12 CU. The surface smoothness ranged from 2,62 to 4,59 Bekk. The optimal treatment was determined to be the 0,2% concentration of CNC followed by the PVA coating+CNC based coating layers. Yeast and mold count (YMC) varied between 3,13 and 5,15 Log (CFU/g) and the selected treatment resulted in decreasing amount of white bread’s YMC from original control paper. FTIR spectrum of paper with selected treatment showed peaks with higher intensity. SEM images of paper with selected treatment resulted on lower surface porosity.
| Item Type: | Thesis (S1) | ||||||||||||
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| Additional Information: | Permintaan yang meningkat terhadap bahan kemasan berkelanjutan telah menyoroti kebutuhan akan alternatif ramah lingkungan terhadap kemasan plastik konvensional. Studi ini mengeksplorasi pengembangan pelapis (coating) berbasis berbagai konsentrasi selulosa nanokristal (CNC) yang berasal dari limbah batang pisang, serta berbagai perlakuan lapisan pelapis untuk kemasan berbahan dasar kertas. Limbah batang pisang, yang merupakan limbah biomassa dan belum dimanfaatkan secara optimal, diproses secara kimiawi dan mekanik untuk mengekstraksi CNC. Pelapis CNC diaplikasikan pada permukaan kertas kraft, kemudian dilakukan karakterisasi sifat fisik seperti ketebalan, gramatur, sudut kontak air, difusivitas, permeabilitas, dan kehalusan permukaan. Kertas berlapis terpilih dikarakterisasi lebih lanjut menggunakan FTIR, SEM, dan diuji sebagai bahan kemasan roti tawar, dengan penilaian efektivitasnya dalam mempertahankan umur simpan dibandingkan kemasan plastik konvensional. Hasil karakterisasi kertas menunjukkan bahwa ketebalan berkisar antara 0,25 hingga 0,33 mm. Gramatur berkisar antara 90,00 hingga 95,80 g/m². Sudut kontak air berkisar antara 50,36 hingga 95,76°. Difusivitas berkisar antara 0,02 hingga 0,45 cm/s. Permeabilitas berkisar antara 2,59 hingga 60,12 CU. Kehalusan permukaan berkisar antara 2,62 hingga 4,59 Bekk. Perlakuan optimal ditentukan pada konsentrasi CNC sebesar 0,2% yang diikuti oleh lapisan pelapis kombinasi PVA dan CNC. Angka Kapang Khamir (AKK) bervariasi antara 3,13 hingga 5,15 Log (CFU/g), dan perlakuan terpilih menghasilkan penurunan jumlah AKK roti tawar dibandingkan kertas kontrol awal. Spektrum FTIR dari kertas dengan perlakuan terpilih menunjukkan puncak-puncak dengan intensitas yang lebih tinggi. Hasil SEM dari kertas perlakuan terpilih menunjukkan porositas permukaan yang lebih rendah. | ||||||||||||
| Uncontrolled Keywords: | cellulose nanocrystal, coating, food paper packaging | ||||||||||||
| Subjects: | T Technology > TP Chemical technology | ||||||||||||
| Divisions: | 04-Fakultas Pertanian > 41221-Program Studi Teknologi Pangan 04-Fakultas Pertanian |
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| Depositing User: | Ms. Raden Roro Anita Septiani | ||||||||||||
| Date Deposited: | 14 Aug 2025 02:19 | ||||||||||||
| Last Modified: | 14 Aug 2025 02:19 | ||||||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/51893 |
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