The 14th Engaging With Vietnam (EWV) Conference

01-06 August 2023 in Huế, Vietnam

What did we do?

Workshop: "Material Futures: Exploring Biobased Materials, local production opportunities, and applications to support the innovation ecosystem in Vietnam" at the Engaging With Vietnam (EWV) Conference, on 5 August 2023.

The need for sustainable and environmentally friendly processes in material and textile manufacturing has sparked interest in utilizing renewable and non-damaging inputs that can be either biodegradable or recyclable. One promising alternative is bacterial cellulose (BC), which can be created through the brewing process of kombucha. In addition, the BC can be grown from food byproducts or food waste using cost-effective methods, and offers a multitude of applications in the fashion, textile and food packaging industries. This project focuses on the BC candidate ingredients found in Vietnam, a developing nation that currently contributes to some of the highest volume of plastic waste in the world. The research delves into BC growing methods, factors that affect the aesthetic material outcomes, and highlights results from experiments conducted at RMIT Vietnam. With locally available ingredients such as black tea, oolong tea, dragon fruit, mango and banana, a range of BC samples have been successfully grown to develop BC-based textiles; furthermore, using stakeholder feedback properties of these textiles were studied to determine potential applications. Through the study, it was observed that factors such as the concentration of growing mediums, pH levels, ambient conditions, and time influence the growth of BC. Tests were performed on the BC produced, indicating its potential to replace fossil fuel-based textiles due to the emulating properties of existing plastics. These newly developed materials could be utilised for clothing, accessories, and food packaging to address the harmful production and waste issues created by current textile technologies.