Zhao Wei, Zhao Mingyue, Zheng Sijia, Zhang Guangming
School of Heilongjiang River and Lake Management, Heilongjiang University, 36 Xuefu 3Rd Street, Harbin, 150080, China.
Chongqing Dazu District Development and Reform Commission, 16 Honghu West Road, Yubei District, Chongqing, 401121, China.
Biotechnol Lett. 2025 Mar 30;47(2):37. doi: 10.1007/s10529-025-03582-8.
The production of single-cell protein (SCP) from microorganisms holds significant importance due to its potential as an alternative protein source. Photosynthetic bacteria (PSB) wastewater treatment and resource recovery method stands out as an effective means to produce SCP, protein content is usually in the 40-60% range, thereby making it a highly valuable byproduct. This comprehensive review not only summarizes the current methods for the production and utilization of SCP but also traces the historical evolution of protein production from PSB wastewater treatment. It delves into the various factors that influence the yield of SCP, meticulously analyzing aspects such as the specific PSB strain employed, the type of wastewater processed, and the light-oxygen conditions under which the process occurs.While this technology has garnered increasing attention in recent years owing to its dual benefits of wastewater treatment and SCP production, the number of studies conducted in this field remains relatively scarce. Furthermore, the majority of these studies have primarily focused on the utilization of the Rhodopseudomonas genus for treating food wastewater treatment under light-anaerobic conditions. Despite these advancements, challenges to economic viability and limitations to industrial-scale production remain. At the conclusion of this review, we discuss the existing problems within the technology, such as the need for optimized conditions for different PSB strains and wastewater types, as well as the potential future prospects for its widespread adoption and commercialization.
利用微生物生产单细胞蛋白（SCP）具有重要意义，因为它有潜力成为一种替代蛋白质来源。光合细菌（PSB）废水处理及资源回收方法是生产SCP的一种有效手段，其蛋白质含量通常在40%-60%之间，因此它是一种极具价值的副产品。这篇综述不仅总结了当前SCP的生产和利用方法，还追溯了PSB废水处理中蛋白质生产的历史演变。它深入探讨了影响SCP产量的各种因素，细致分析了所采用的特定PSB菌株、处理的废水类型以及该过程发生时的光氧条件等方面。尽管这项技术近年来因其废水处理和SCP生产的双重效益而受到越来越多的关注，但该领域的研究数量仍然相对较少。此外，这些研究大多主要集中在利用红假单胞菌属在光照厌氧条件下处理食品废水。尽管有这些进展，但经济可行性方面的挑战和工业规模生产的限制仍然存在。在这篇综述的结尾，我们讨论了该技术中存在的问题，例如需要为不同的PSB菌株和废水类型优化条件，以及其广泛应用和商业化的潜在未来前景。
