Description: With the changes of the times, also during the epidemic, the volume of takeaways has increased, and the amount of plastic packaging and tableware packaging has increased, resulting in excessive use and waste. The slow decomposition has caused the problem of plastic flooding to increase unabated and seriously endanger the global environment. We used sweet potato starch to make natural soluble edible (NSE) piece and stick them with NSE adhesive to form NSE packaging. Data was analyzed by six experiments: Test the pH value of NSE materials Test the effect of NSE material solution on plant growth Compared with the mung bean’s growth rate of the tap water, NSE solution is better. Test the effect of NSE material solution on animal growth The survival rate is not much different from compared with the zebrafish in the control device. NSE is non-toxic. Detection of bacterial content in NSE samples The result is 24MPN/100g (24 hours) The result of the bacteria content of 3M Petrifilm Colifor
With the time changes, people's dependence on plastics has become more and more serious, the amount of plastic used has increased significantly. During the pandemic, the volume of takeaways has increased, and the amount of plastic and tableware packaging has increased, resulting in excessive waste. The slow decomposition has caused the problem of plastic flooding to increase unabated and seriously endanger the global environment. So, we conducted research on edible materials that are both soluble and edible; then, we found that sweet potato powder can achieve this goal. Hence, we use it to make dissolvable pieces, packaging bags and degradable packaging boxes, which means they can dissolve in water easily, and has solved the plastic excessive problem. Through different experiments we did, we know that it will not affect the environment plants and animals or others, it is very light and simple to carry. Also, the bacterial content reaches the standard, the most important thing is that it can dissolve within 3 seconds and is low in cost; so, we hope it can be applied in more different packaging or others, together with contributing to the environmental protection of the earth.
Organisation: The Affiliated School of the University of Macau
Innovator(s): Lam Chi Mei, Ngie Helen, Weng Hei Lau
Country: Macau SAR