废气的微生物转化为单细胞蛋白质

IF 0.7 Q4 MICROBIOLOGY
Surbhi Jain, James K. Heffernan, Jitendra A. Joshi, T. Watts, E. Marcellin, C. Greening
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引用次数: 1

摘要

气候变化和粮食安全是我们这个时代最重大的两个全球挑战。传统的粮食生产方法不仅会产生温室气体,而且需要大量的土地和水资源。另一种选择是使用气体发酵将温室气体作为原料转化为富含微生物蛋白质的生物质(单细胞蛋白质)。好氧甲烷营养菌(甲烷氧化)和氢营养菌(氢氧化)利用气体作为能量和碳源生产生物质,是单细胞蛋白质生产的理想候选者。然而,单细胞蛋白质生产要经济和可持续,还需要多项创新。尽管目前的技术依赖于纯化的单一气体底物的转化,但直接使用点源混合气流的潜力仍有待探索。此外,通过合成生物学提高单细胞蛋白质的营养和商业价值的潜力很大。从这个角度来看,我们讨论了旨在显著减少温室气体排放和加强粮食安全的气体发酵技术的原则、方法和前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Microbial conversion of waste gases into single-cell protein
Climate change and food security are two of our most significant global challenges of our time. Conventional approaches for food production not only produce greenhouse gases but also require extensive land and water resources. An alternative is to use gas fermentation to convert greenhouse gases as feedstocks into microbial protein-rich biomass (single-cell protein). Aerobic methanotrophic (methane-oxidising) and hydrogenotrophic (hydrogen-oxidising) bacteria, which produce biomass using gases as their energy and carbon sources, are ideal candidates for single-cell protein production. However, multiple innovations are required for single-cell protein production to be economical and sustainable. Although current technologies rely on conversion of purified single gaseous substrates, the potential to directly use mixed gas streams from point sources remains reasonably unexplored. In addition, there is much potential to increase nutritional and commercial value of single-cell protein through synthetic biology. In this perspective, we discuss the principles, approaches, and outlook for gas fermentation technologies aiming to significantly reduce greenhouse gas emissions and enhance food security.
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来源期刊
Microbiology Australia
Microbiology Australia MICROBIOLOGY-
CiteScore
2.90
自引率
7.70%
发文量
32
审稿时长
7 weeks
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