用于生产单细胞蛋白质的气体发酵技术经济分析
Alexandra B Jean1, Robert C Brown1,2
1Department of Chemical and Biological Engineering, Iowa State University, Ames, Iowa 50011, United States.
Environmental science & technology
|February 17, 2024
概括
通过气体发酵生产的单细胞蛋白 (SCP) 提供了可持续的动物料替代品. 这种技术经济分析揭示了SCP的SCP.
科学领域:
- 可持续的动物蛋白质生产
- 生物技术是生物技术.
- 环境科学环境科学
背景情况:
- 全球对动物蛋白质的需求不断增长,需要可持续的替代品.
- 畜牧业生产的碳足迹很大.
- 鱼粉和大豆粉是主要的动物料蛋白质来源,具有环境缺点.
研究的目的:
- 评估单细胞蛋白 (SCP) 作为动物料替代品的技术经济可行性.
- 为了比较SCP的环境影响与传统的料来源,如鱼粉和大豆粉.
主要方法:
- 通过气体发酵生产SCP的技术经济分析.
- 利用风力驱动的水电解来生产和氧气.
- 从玉米乙醇生产中捕获的二氧化碳.
- 为SCP计算的最低销售价格 (MSP).
- 碳强度,土地使用和海洋生态系统影响的比较.
主要成果:
- 对SCP的最低销售价 (MSP) 确定为每公2070美元.
- 与鱼粉 (2.72 kg CO2-equiv/kg 蛋白质) 和大豆粉 (0.85 kg CO2-equiv/kg 蛋白质) 相比,SCP 的碳强度较低 (0.73 kg CO2-equiv/kg 蛋白质).
- 与传统的料来源相比,SCP生产需要的土地少得多 (0.4%),对海洋生态系统的干扰也少 (<0.1%).
结论:
- 作为动物料的可持续蛋白质来源,SCP显示出经济可行性.
- SCP提供了大量的环境效益,包括减少碳足迹,土地使用和海洋生态系统影响.
- 气体发酵为可持续的动物蛋白质生产提供了一个有希望的途径.
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