Composition and growth of sorghum biomass genotypes for ethanol production

被引：50

作者：

Fonseca de Almeida, Luciana Gomes ^{[1
]}

da Costa Parrella, Rafael Augusto ^{[2
]}

Ferreira Simeone, Maria Lucia ^{[2
]}

de Oliveira Ribeiro, Pedro Cesar ^{[4
]}

dos Santos, Alexandre Soares ^{[1
]}

Vieira da Costa, Alexandre Sylvio ^{[3
]}

Guimaraes, Amanda Goncalves ^{[1
]}

Schaffert, Robert Eugene ^{[2
]}

机构：

[1] Fed Univ Jequitinhonha & Mucuri Valleys, Campus JK,BR-367,5000, BR-39100000 Diamantina, MG, Brazil

[2] Embrapa Milho & Sorgo, Rod MG 424, BR-35701970 Sete Lagoas, MG, Brazil

[3] Fed Univ Jequitinhonha & Mucuri Valleys, Campus Mucuri, Otoni, MG, Brazil

[4] Univ Fed Vicosa, BR-36570900 Vicosa, MG, Brazil

来源：

BIOMASS & BIOENERGY | 2019年 / 122卷

关键词：

Sorghum bicolor; Chemical composition; Adaptability; brown midrib; Lignocellulosic ethanol; BROWN-MIDRIB MUTANTS; SUGARCANE BAGASSE; FORAGE SORGHUM; 2ND-GENERATION ETHANOL; BIOETHANOL PRODUCTION; ENZYMATIC-HYDROLYSIS; REDUCED LIGNIN; SWEET SORGHUM; PRETREATMENT; BICOLOR;

D O I：

10.1016/j.biombioe.2019.01.030

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Sorghum bicolor (L.) (Moench), which stands out for dry matter yield per hectare, has been considered as potential raw material for biofuels and electricity generation. It has a production cycle of six months, possibility of mechanization of cultivation and harvest and good adaptation to most regions of Brazil. Sorghum genotypes were evaluated for agronomic potential and chemical composition favorable to the production of second-generation ethanol. Three brown midrib (bmr) sorghum mutant hybrids were compared to three conventional hybrids. The bmr sorghum mutant hybrids are associated with reduced lignin content, making these genotypes more promising to the enzymatic conversion processes of the biomass. Sorghum biomass showed a high potential in terms of biomass production, with an average dry matter yield of 26.57 Mg ha(-1). Brown midrib sorghum hybrids showed significantly lower lignin contents than conventional hybrids and demonstrated the potential for cellulosic ethanol production.

引用

页码：343 / 348

页数：6

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