Single Cell Protein

Microorganisms as an Alternative Source of Protein

“…The bacterium grows in mixed cultures with aerobic, heterotrophic, and nitrogen-fixing bacteria, yielding 1-2 g/L biomass. 25 The heterotrophic bacteria degrade organic materials in sewage and industrial wastes, thereby releasing CO,.…”

Engineering Escherichia coli for methanol conversion

“…In consequence, interest in methylotrophy is fueled by biotechnological interest in converting raw materials alternative to sugars by microbial fermentation. Although methanol was applied for industrial-scale production of single-cell proteins in the 1970s (Maclenna et al, 1973;Solomons, 1983;Westlake, 1986;Windass et al, 1980), in the past decades interest has shifted to transforming methanol into value-added products including bulk chemicals such as biofuels, amino acids and biopolymers (Schrader et al, 2009;Brautaset et al, 2007), and a methanol-based economy as an alternative fuel and feedstock concept has been proposed (Olah, 2013).…”

Zygomycetes-based biorefinery: Present status and future prospects

“…The strains already employed in preparing fermented foods for human consumption are deemed to be GRAS (Generally Regarded As Safe), which significantly reduces the amount of testing required prior to a full-scale process (Lennartsson, 2012). Further, zygomycetes generally contain relatively small amounts of nucleic acids that, due to the uric acid produced when catabolized, are a limiting factor for human or animal consumption (Solomons & Litchfield, 1983). The pleasant taste and smell of the produced biomass, and its easy separation from the medium, are additional advantages of using these fungi in the feed industry (Lennartsson, 2012).…”