Sustainable hair dyes from food waste / supply chain surplus

将生物质转化为燃料和增值化学品是支持全球和英国实现净零愿望的关键。理想情况下，生物质来源应该是非食用生物质，如木质纤维生物质，和/或供应链剩余或废物。然而，生物精炼概念面临以下挑战：对包含所有生物质成分的复杂废物流进行定价；对新的、以生物为基础的供应链的要求；发现在社会、经济和环境因素方面也是可持续的新技术和新工艺；生物质原料的异质性；生物精炼系统在现有系统内的整合；以及复杂的建模要求。人类食物供应链中的剩余和废物有可能被用于头发化妆品，而立法挑战较少。该项目将研究从食物垃圾/剩余物中提取的染发剂。

The conversion of biomass to fuels and value-added chemicals is key to support net-zero aspirations both globally and within the UK. Ideally biomass sources should be non-food biomass such as lignocellulosic biomass, and/or supply chain surplus or wastes. However, the biorefinery concept is challenged with valorisation of complex waste streams encompassing all biomass components; the requirement for new, biobased supply chains; discovery of new technologies and processes that are also sustainable with respect to social, economic and environmental factors; heterogeneity ofbiomass feedstocks; integration of biorefinery systems within established systems; and complex modelling requirements. Surplus and waste from the human food supply chain have potential to be used for hair cosmetics with fewer legislative challenges. This project will research extracts from food waste/surplus for hair dyes.