[Photo]”AuREUS”, a material developed from waste vegetables that captures ultraviolet rays and converts them into renewable energy (Source: MAPUA University)

Is there any good way? It will be difficult soon, but the following technologies may be available in the near future. It’s a way to use waste vegetables. Currently, materials with stronger strength than concrete that can be used from waste vegetables to structures such as bridges and buildings are being developed. There are also materials that can absorb ultraviolet rays and generate electricity. This time, I would like to introduce a dream-like material developed from such waste vegetables. Developed materials that are stronger than concrete from waste vegetables! Kota Machida of the University of Tokyo and Associate Professor Yuya Sakai of the Institute of Industrial Science, the University of Tokyo have developed a new material derived from completely plants * 1. It is a material that is more than four times stronger than concrete from waste vegetables. Please see the figure below. Is it cabbage, mandarin orange peel, or onion peel? You can see powdered ones and new materials. Another advantage is that you can leave the color of the ingredients as they are. This powder seems to be freeze-dried raw material. After that, it is said that this new material can be made by heating and compressing. The temperature and pressure of heat compression seem to depend on the raw materials, but it is thought that the strength is developed by softening the sugars of the waste vegetables during heating and the sugars flowing due to the pressure to fill the gaps. And that. However, it seems that the details of this mechanism will be examined in the future. This new material achieves a bending strength of 18MPa, which is more than four times the bending strength of concrete (about 5MPa). The water resistant treatment used for wood is also possible, and various uses can be expected. In addition, Lanchester University in the United Kingdom is developing a technology that significantly improves the strength of concrete by utilizing new materials made from waste vegetables * 2. By adding this new material to concrete, the amount of calcium silicate hydrate in the new material can be increased and the strength of concrete can be improved. Also, the British company Chip[s]Board * 3 is developing environmentally friendly wood substitutes made from potato waste and plastic-like material “Parblex”. Using this material, we also manufacture eyeglasses. Renewable energy from waste vegetables! Carvey Ehren Maigue of MAPUA University in the Philippines has developed “AuREUS”, a material that captures ultraviolet rays (UV) from discarded fruits and vegetables and converts them into renewable energy * 4. He has won the James Dyson Award 2020 Sustainability Award. Please see the translucent yellow-green panel in the figure below. It can absorb ultraviolet light and convert it into visible light to generate electricity. In the Philippines, there are many natural disasters such as typhoons, which will save farmers of damaged crops. And this panel can be colored in various ways, and even if it is attached to the window of a building to generate electricity, it has great merits such as making the landscape beautiful. How was it? This time, we introduced a dream-like new material developed from waste vegetables. Since it is derived from vegetables and plants, it is eco-friendly because even if this new material is discarded, it will be converted to soil. It will be even more powerful if various surface treatments and treatments are applied. I hope that it will become a major technology in the near future. References * 1 https://www.iis.u-tokyo.ac.jp/ja/research/archive/3568/ * 2 https://www.lancaster.ac.uk/news/vegetables-could-hold-the- key-to-stronger-buildings-and-bridges * 3 https://www.chipsboard.com/ * 4 https://www.mapua.edu.ph/News/article.aspx?newsID=2148 Koya Saida Tomoya Saida Completed the Graduate School of Engineering, Tohoku University in 2004, and became a doctor of engineering. In the same year, he joined the Japan Aerospace Exploration Agency (JAXA) and was assigned to two artificial satellite project teams. Joined Japan Research Institute in 2012. Engaged in space business consulting for government agencies and companies. Currently focusing on consulting and information dissemination. Books include “The Third Wave of Space Business” and “Introduction to Illustrated Industry Research: A Book That Understands the Latest Space Business Trends and Karakuri”. Many TV, newspapers, websites, seminars and lectures.