Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)

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Innovative Bioplastic from Coffee Grounds Waste and Cassava Starch: A Circular Economy-Based Coffee Packaging Solution

Authors
Komang Widhi Widantha1, *, Risa Nurin Baiti1, I Wayan Padma Yogi Asana1, Anisa Fitri2, Ida Bagus Adisimakrisna Peling3
1Mechanical Engineering Department, Politeknik Negeri Bali, Bali, Indonesia
2Material Engineering Department, Institut Teknologi Sumatera, Lampung, Indonesia
3Information Technology Department, Politeknik Negeri Bali, Bali, Indonesia
*Corresponding author. Email: komangwidhi@pnb.ac.id
Corresponding Author
Komang Widhi Widantha
Available Online 31 October 2025.
DOI
10.2991/978-94-6463-878-3_17How to use a DOI?
Keywords
Bioplastics; Coffee Grounds Waste; Green Materials
Abstract

The rapidly growing coffee industry in Indonesia, especially in Bali, produces large amounts of coffee grounds waste, most of which has not been optimally utilized. On the other hand, the use of conventional plastics that are difficult to decompose causes serious environmental problems. This study aims to develop cassava starch-based bioplastics with the addition of coffee grounds as fillers to improve their mechanical properties and biodegradability. Bioplastics were made with three variations of coffee grounds concentrations, namely 10%, 20%, and 30% of the total solids. Characterization tests included tensile strength, elongation, and resistance to water and humidity. In addition, biodegradation tests were carried out in soil and water media for 7 days. The results showed that bioplastics with 10% coffee grounds had the highest tensile strength and elongation, while increasing the concentration of coffee grounds tended to decrease mechanical properties but increase the rate of degradation. This study provides an alternative use of coffee grounds waste in the development of sustainable, environmentally friendly materials.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
Series
Advances in Engineering Research
Publication Date
31 October 2025
ISBN
978-94-6463-878-3
ISSN
2352-5401
DOI
10.2991/978-94-6463-878-3_17How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Komang Widhi Widantha
AU  - Risa Nurin Baiti
AU  - I Wayan Padma Yogi Asana
AU  - Anisa Fitri
AU  - Ida Bagus Adisimakrisna Peling
PY  - 2025
DA  - 2025/10/31
TI  - Innovative Bioplastic from Coffee Grounds Waste and Cassava Starch: A Circular Economy-Based Coffee Packaging Solution
BT  - Proceedings of the International Conference on Sustainable Green Tourism Applied Science - Engineering Applied Science 2025 (ICOSTAS-EAS 2025)
PB  - Atlantis Press
SP  - 142
EP  - 150
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-878-3_17
DO  - 10.2991/978-94-6463-878-3_17
ID  - Widantha2025
ER  -