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Journal of Experimental Agriculture International, ISSN: 2457-0591, ISSN: 2231-0606 (Past),Vol.: 25, Issue.: 2


First and Second Generation of Ethanol Production for Five Sweet Sorghum Cultivars during Soft Dough Grain


Emmanuel Damilano Dutra1*, Bárbara Ribeiro Alves Alencar1, Janis Joplim Galdino1, Jose Nildo Tabosa2, Rômulo Simões Cezar Menezes1, Renisson Neponuceno de Araújo Filho3, Dário Costa Primo1, Victor Casimiro Piscoya4 and Jadson Emanuel Lopes Antunes5

1Universidade Federal de Pernambuco, Av. Prof. Luís Freire, 1000, CEP 50740-540, Cidade Universitária, Recife, PE, Brazil.

2Instituto Agronômico de Pernambuco, Av. General San Martin, 1371, 50761-000, Recife, PE, Brazil.

3Universidade Federal do Tocantins, Rua Badejós, Lote 7, Chácaras 69/72, s/n - Zona Rural, CEP 77402-970, Gurupi, TO, Brazil.

4Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, CEP 52171-900, Recife, PE, Brazil.

5Universidade Federal do Piauí, Campus Ministro Petrônio Portela, s/n, Ininga, CEP 64049-550, Teresina, PI, Brazil.

Article Information


(1) Moreira Martine Ramon Felipe, Associate Professor, Departamento de Enxeñaría Química, Universidade de Santiago de Compostela, Spain.


(1) Yinusa Taiwo Saheed, Federal University Oye Ekiti, Nigeria.

(2) Anonymous, Manipal Institute of Technology, Manipal University, India.

(3) Muhammad Irfan, University of Sargodha, Sargodha, Pakistan.

Complete Peer review History: http://www.sciencedomain.org/review-history/25830


This study we aimed to identify how the harvest period of the stems from 5 sweet sorghum cultivars influences the production of sugar and ethanol under rainfed conditions in the municipality of Itambé, state of Pernambuco. Subsequently we evaluated the ethanol production from juice and bagasse of the different cultivars. The field experiment was evaluated in a factorial arrangement with two factors (5 cultivars and 3 harvest periods) and fours replications. The fermentation experiments, pretreatment and enzymatic hydrolysis were delineated in a completely randomized design in quadruplicate. Data obtained for all variables evaluated were submitted to an Analysis of Variance and the means compared by the Tukey test at 5% of probability. Results showed that the harvest period influenced the total soluble solids, and the harvest period of soft dough was chosen for assessments of ethanol production of first and second generation. Ethanol production from juice differed among cultivars with the best performance by cultivar SF 15. Significant differences were observed for the chemical composition of bagasses between cultivars, but there where no difference in efficiencies of enzymatic hydrolysis. The average conversion of cellulose in glucose was 64.87%. The cultivars of sweet sorghum biomass developed and adapted for the Northeastern region of Brazil showed potential for ethanol production from the juice and bagasse.

Keywords :

Bioenergy; energy crops; biofuels; forest zone of Pernambuco.

Full Article - PDF    Page 1-12

DOI : 10.9734/JEAI/2018/42742

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