Titre:	Evaluation of diferent strains of Saccharomyces cerevisiae for ethanol production from high‑amylopectin BRS AG rice (Oryza sativa L.)
Auteur(s):	Almeida, Isabela Castro de Pacheco, Thályta Fraga Silva, Fabrício Machado Gonçalves, Sílvia B.
metadata.dc.contributor.affiliation:	Universidade de Brasília, Instituto de Química Embrapa Agroenergia Embrapa Agroenergia Universidade de Brasília, Instituto de Química University of Nottingham, School of Chemistry Embrapa Agroenergia University of Nottingham, Faculty of Engineering
Assunto::	Etanol - produção Saccharomyces cerevisiae Arroz
Date de publication:	8-fév-2022
Editeur:	Nature Research
Référence bibliographique:	ALMEIDA, Isabela C. etl. al. Evaluation of diferent strains of Saccharomyces cerevisiae for ethanol production from high‑amylopectin BRS AG rice (Oryza sativa L.). Scientific reports, [s. l.], v. 12, 2122, 2022. DOI: https://doi.org/10.1038/s41598-022-06245-0. Disponível em: https://www.nature.com/articles/s41598-022-06245-0. Acesso em: 26 set. 2023.
Abstract:	Ethanol is the main biofuel produced by fermentation route and the search for new feedstocks to produce fuel ethanol is still a great challenge. This work aims to compare the ethanol production from a new irrigated rice cultivar BRS AG to the conventional cultivar BRS PAMPA applied in Brazil. Six diferent commercial strains of Saccharomyces cerevisiae (BG-1, CAT-1, FT-858, JP-1, PE-2, and SA-1) were applied in fermentation reactions. Fermentations performed with BRS PAMPA rice revealed that the highest yields were achieved with strain SA-1, corresponding to 93.0% of the theoretical maximum and fnal ethanol concentration of 58.92 g L−1, and with CAT-1, a yield of 92.7% and fnal ethanol concentration of 58.93 g L−1. For the fermentations with BRS AG rice, the highest yields were obtained with strain FT-858, exhibiting a 89.6% yield and fnal ethanol concentration of 62.45 g L−1, and with CAT-1, 87.9% yield and fnal ethanol concentration of 61.25 g L−1 were achieved. The most appropriate microorganism for ethanol production using BRS PAMPA rice and BRS AG rice was CAT-1. Comparatively, the ethanol yield and productivity using BRS AG were higher than those observed for BRS PAMPA for all strains, except for PE-2 and SA-1 that led to very similar results. The experimental results showed that the giant rice BRS AG is an excellent feedstock for fuel ethanol production in lowland felds.
metadata.dc.description.unidade:	Instituto de Química (IQ)
Licença::	(CC-BY) Open Access - This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
DOI:	https://doi.org/10.1038/s41598-022-06245-0
Collection(s) :	Artigos publicados em periódicos e afins

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