替代动物肉蛋白的一种大豆蛋白可以提供全球减少和循环机会
Kenneth Ruffatto1, Andrew J Margenot2,3, Vijay Singh4
1Institute for Sustainability, Energy, and Environment, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Environmental science & technology
|December 18, 2025
概括
转向大豆蛋白缩剂 (SPC) 显著减少了 (P) 肥料在动物料中的使用. 在SPC加工过程中回收P也可以创建可再生肥料,增强食品系统的可持续性.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 食品科学 食品科学 食品科学
背景情况:
- 动物蛋白质的消费比植物蛋白质对环境的影响更大.
- (P) 的使用是可持续食品系统的关键,但经常被忽视的因素.
- 现有的评估经常侧重于水和碳,忽视了P足迹.
研究的目的:
- 为了评估全球动物肉蛋白消费的 (P) 足迹.
- 评估用大豆蛋白质 (大豆蛋白缩物 - SPC) 代替动物蛋白质的潜在环境益处.
- 量化对P肥使用的影响,并探索P回收机会.
主要方法:
- 利用国家特定的动物和作物参数来建模P足迹.
- 计算了人均动物肉蛋白消费的P足迹.
- 模拟了完全过渡到SPC对P肥料应用和P回收的影响.
主要成果:
- 2019年,动物肉蛋白产生的全球平均P足迹为人均2.6公斤P.
- 过渡到SPC可以将动物料中的P肥量减少81% (每年830万P).
- 在SPC加工过程中的P回收可以抵消大豆生产中全球P肥料使用的17%.
结论:
- 减少对动物蛋白的依赖和采用SPC可以大幅减少P肥需求.
- 从SPC加工中有效的P回收提供了可再生肥料来源,提高了P使用效率.
- 向SPC的转变通过更好的P管理提高了全球粮食系统的安全性和弹性.
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