Can closed-loop microbial protein provide sustainable protein security against the hunger pandemic?
Can closed-loop microbial protein provide sustainable protein security against the hunger pandemic?
复制标题
闭环微生物蛋白能否提供可持续的蛋白质安全来应对饥饿大流行？
DOI：
10.1016/j.crbiot.2022.09.001
复制
发表时间：
2022
影响因子：
5.6
通讯作者：
Durkin A
中科院分区：
文献类型：
--
作者：
Durkin A
对动物源蛋白质的需求不断增加是食品系统超越安全环境操作极限（即地球边界）的主要驱动力。微生物蛋白质正在被探索作为一种替代方案，以提供可持续的蛋白质安全在地球的界限。在这里，一个设计和优化框架开发的闭环过程中，生物能源和营养物质回收微生物蛋白生产废水。分析了全球从动物源牛肉蛋白向闭环微生物蛋白转变以及综合资源回收的环境效益。微生物蛋白的生产生命周期比动物源牛肉蛋白短，因此为蛋白质安全提供了可扩展的技术解决方案，大大减轻了对环境的影响。我们的研究结果证明了对环境有利的闭环食品系统的价值，以满足预计的2050年蛋白质需求，同时保持食品系统在安全的环境限制内运行。
Increasing demand for animal-sourced protein is a major driver of the food system’s transgression of the safe environmental operating limits known as planetary boundaries. Microbial proteins are being explored as an alternative to provide sustainable protein security within the planetary boundaries. Here, a design and optimization framework was developed for a closed-loop process in which bioenergy and nutrients are recovered from microbial protein production wastewater. The environmental benefits of a global transition from animal-sourced beef protein toward closed-loop microbial protein with integrated resource recovery was analysed. Microbial protein has a shorter production life cycle than animal-sourced beef protein, thus offering a scalable technology solution to protein security with substantially mitigated environmental impacts. Our results demonstrate the value of environmentally favourable closed-loop food systems to meet projected 2050 protein demand while maintaining food system operations within the safe environmental limits.