Science. 1983 Feb 11;219(4585):740-6. doi: 10.1126/science.219.4585.740.
Both photosynthetic and nonphotosynthetic microorganisms, grown on various carbon and energy sources, are used in fermentation processes for the production of single-cell proteins. Commercial-scale production has been limited to two algal processes, one bacterial process, and several yeast and fungal processes. High capital and operating costs and the need for extensive nutritional and toxicological assessments have limited the development and commercialization of new processes. Any increase in commercial-scale production appears to be limited to those regions of the world where low-cost carbon and energy sources are available and conventional animal feedstuff proteins, such as soybean meal or fish meal, are in short supply.
各种利用不同碳源和能源生长的光合和非光合微生物都被用于单细胞蛋白的发酵生产。商业规模的生产仅限于两种藻类工艺、一种细菌工艺以及几种酵母和真菌工艺。高资本和运营成本以及对广泛营养和毒理学评估的需求限制了新工艺的开发和商业化。商业规模生产的任何增加似乎都仅限于那些拥有低成本碳和能源来源且常规动物饲料蛋白（如豆粕或鱼粉）短缺的地区。
