Bibliometric study provides an overview of the body of knowledge in strategic topics.
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Bioethanol has less aggressive and sustainable combustion compared to fossil fuels.
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The main limitations of the SSF are intrinsic factors such as yeast, enzymes, and pH.
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Resistant/tolerant microorganisms cause high productivity and ethanol concentration.
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The use of agro-industrial residues reduces waste, pollution, and production costs.
Abstract
Bioethanol is a biofuel that enables less aggressive combustion, cleanly and sustainably compared to fossil fuels. Its production can be done using simultaneous saccharification and fermentation (SSF) or separately, when using starchy raw material. The growing application of SSF in the production of bioethanol has revitalized the need to explore the information associated with laboratory and pilot-scale studies, through the analysis of the available literature. Thus, the aim of this work was to perform a bibliographic review by exploring the factors that influence the production of bioethanol by SSF and others methods, with a focus on the reduction of process costs. The study disclosed the main efficiencies and limitations of SSF, identifying the process points that can be optimized to reduce costs. The main factors identified include use of appropriate raw materials and extrinsic factors such as yeast, enzymes, and pH.
