Towards a Biorefinery Processing Waste from Plantain Agro-Industry: Process Design and Techno-Economic Assessment of Single-Cell Protein, Natural Fibers, and Biomethane Production through Process Simulation

Gómez, James A.; Matallana, Luis G.

doi:10.3390/fermentation8110582

Cited by 3 publications

(1 citation statement)

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“…It was recently shown that it is more profitable to synthesize SCP via anaerobic digestion, since this produces biogas and biodigestates compared to traditional approaches that focus solely on biogas as the biobased product [ 152 ]. Other TEA studies have shown the economic feasibility of having biorefineries that target multiproduct value chains (SCP, natural fibers, and methane) using agro-industrial effluents [ 153 ]. A more recent study by Vlaeminck et al [ 154 ] demonstrated that third-generation biorefineries harnessing industrial off-gases could be another economically feasible approach for biobased SCP innovations, as this strategy led to cost reductions of 4.15 to 2.78 USD/kg.…”

Section: Economic Analysismentioning

confidence: 99%

Valorization of Food Waste into Single-Cell Protein: An Innovative Technological Strategy for Sustainable Protein Production

Sekoai,

Roets-Dlamini,

O’Brien

et al. 2024

Microorganisms

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The rapidly increasing population and climate change pose a great threat to our current food systems. Moreover, the high usage of animal-based and plant-based protein has its drawbacks, as these nutritional sources require many hectares of land and water, are affected by seasonal variations, are costly, and contribute to environmental pollution. Single-cell proteins (SCPs) are gaining a lot of research interest due to their remarkable properties, such as their high protein content that is comparable with other protein sources; low requirements for land and water; low carbon footprint; and short production period. This review explores the use of food waste as a sustainable feedstock for the advancement of SCP processes. It discusses SCP studies that exploit food waste as a substrate, alongside the biocatalysts (bacteria, fungi, yeast, and microalgae) that are used. The operational setpoint conditions governing SCP yields and SCP fermentation routes are elucidated as well. This review also demonstrates how the biorefinery concept is implemented in the literature to improve the economic potential of “waste-to-protein” innovations, as this leads to the establishment of multiproduct value chains. A short section that discusses the South African SCP scenario is also included. The technical and economic hurdles facing second-generation SCP processes are also discussed, together with future perspectives. Therefore, SCP technologies could play a crucial role in the acceleration of a “sustainable protein market”, and in tackling the global hunger crisis.

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Section: Economic Analysismentioning

confidence: 99%