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All Journal Jurnal IPTEK Abdimas Indonesian Journal
Anggara, Jaclyn Regina
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Religion Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Pengaruh Penambahan Ekstrak Buah Duwet dan Bunga Mawar pada Kemasan Pintar Berbasis Selulosa Bakteri sebagai Indikator Kerusakan Makanan Winata, Kezia Jasmine; Anggara, Jaclyn Regina; Angkadjaja, Belinda Manuela; Gunawan, Fayola Feivel; Sulistyo, Joko
Abdimas Indonesian Journal Vol. 4 No. 2 (2024)
Publisher : Civiliza Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59525/aij.v4i2.409

Abstract

Despite its environmental and health drawbacks, plastic continues to be widely used because of its cost-effectiveness and versatility. This study investigates the potential of biodegradable plastic made from cellulose derived from nata de coco, which is produced through the fermentation of Acetobacter xylinum bacteria, as a sustainable alternative to conventional non-biodegradable plastics. The structural integrity of the bioplastic was improved by adding cassava starch, glycerin, and CMC. Additionally, extracts from rose and Java plum were incorporated into the material to serve as indicators of food spoilage. Functionality tests revealed that the bioplastic containing rose extract demonstrated the most significant color change, likely due to the degradation of anthocyanins present in the extract. This research presents a promising approach to addressing plastic pollution and reducing food waste through the use of biodegradable smart packaging.
Extraction and Characterization of Cellulose from Arabica Spent Coffee Grounds Hamidy, Raymond; Rachman, Hans; Anggara, Jaclyn Regina; Sulistyo, Joko; Asri, Nyoman Puspa
Jurnal IPTEK Vol 29, No 1 (2025)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2025.v29i1.7815

Abstract

Global coffee production generates significant amounts of spent coffee grounds (SCG), often discarded, creating environmental challenges. Cellulose, a major component of SCG, can be extracted for industrial applications, such as food packaging and bioplastics. This research aims to determine the optimal cellulose purification time for maximizing purity and characterize the physicochemical properties of the extracted cellulose for food industry use. The study investigates the effect of different purification times on cellulose purity. The highest purity (74.40%) was obtained at 180 minutes, with the extracted cellulose showing high crystallinity and favorable properties, such as low moisture content (3.49%), water absorption capacity (6.17%), and bulk density (0.2871 g/cm³). Characterization using SEM revealed the morphology of cellulose crystals, and analysis (Carr’s index: 15.33%, Hausner ratio: 1.1811) confirmed the material’s suitability for biocomposites in food applications. Color analysis (L*: 76.34, C*: 28.52, h*: 16.46, WI: 62.94) also highlighted the material’s potential for use in food formulations. This research provides valuable data for further applications of cellulose derived from SCG.
Co-Authors Angkadjaja, Belinda Manuela Gunawan, Fayola Feivel Hamidy, Raymond Joko Sulistyo Nyoman Puspa Asri Rachman, Hans Winata, Kezia Jasmine