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New Feedstocks for Bioethanol Production: Energy Cane and Agave

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Liquid Biofuels: Bioethanol

Abstract

Bioethanol consumption is projected to increase to 140 billion liters by 2029. However, climate change threatens the global production of the main bioethanol feedstocks, like sugarcane and corn. The search for new sources of biomass with greater resistance to these adverse conditions is essential to minimize impacts on biofuels production. In this context, two crops stand out: energy cane and Agave. Originally bred to improve the Saccharum genus feasibility to lignocellulosic bioethanol production, energy cane has physiological and biochemical characteristics that enhance robustness and could act as a direct substitute for sugarcane in traditional areas already suffering from irregular climate. On the other hand, Agave is a desert crop that has been domesticated as early as corn and has traditionally been used for alcoholic beverages and fibers but has never been applied for bioenergy purposes. With high water use efficiency, agaves can yield as much as sugarcane and can be used to slacken land competition and improve food and energy security. Both these crops present promising productivities and traits, such as high carbohydrates accumulation and drought resistance. However, they still face similar challenges to unravel its potential as new feedstocks for bioethanol in an Era of Climate Change.

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Acknowledgments

The authors would like to thank Don Chambers from AusAgave for sharing information and images. This work was supported in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brazil (CAPES)—Finance Code 001, and Fundação de Amparo à Pesquisa do Estado de São Paulo—Brazil (FAPESP)—process number 2018/10315-2.

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Correspondence to Gonçalo Amarante Guimarães Pereira .

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Trigo Raya, F. et al. (2022). New Feedstocks for Bioethanol Production: Energy Cane and Agave. In: Soccol, C.R., Amarante Guimarães Pereira, G., Dussap, CG., Porto de Souza Vandenberghe, L. (eds) Liquid Biofuels: Bioethanol. Biofuel and Biorefinery Technologies, vol 12. Springer, Cham. https://doi.org/10.1007/978-3-031-01241-9_18

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