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首页> 外文期刊>Renewable energy >Valorization of an agroextractive residue-Carnauba straw-for the production of bioethanol by simultaneous saccharification and fermentation (SSF)
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Valorization of an agroextractive residue-Carnauba straw-for the production of bioethanol by simultaneous saccharification and fermentation (SSF)

机译：农业提取物残渣-巴西棕榈秸秆-通过同时糖化和发酵（SSF）生产生物乙醇的价值

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摘要

In this study, the use of carnauba straw residue to produce cellulosic ethanol by simultaneous saccharification and fermentation (SSF) with three industrial yeasts was investigated. Hydrothermal (HT), alkaline (AL), and acid-alkaline (AA) pretreatments were carried out on the residues, and the efficiency of the enzymatic hydrolysis of these residues was evaluated. The SSF was performed using Saccharomyces cerevisiae UFLA CAll, Saccharomyces cerevisiae CAT-1, and Kluyveromyces marxianus ATCC-36907 at 35, 40, and 45 degrees C. The AL pretreatment resulted in the best removal of lignin and hemicellulose. In addition, enzymatic hydrolysis of the dry residue treated with AL converted 64.43% of the lignocellulosic biomass to sugars. SSF of the AL-pretreated residue using Kluyveromyces marxianus ATCC-36907 cultivated at 45 degrees C produced 7.53 g/L ethanol. (C) 2018 Elsevier Ltd. All rights reserved.
机译：在这项研究中，研究了巴西棕榈草渣与三种工业酵母通过同时糖化和发酵（SSF）生产纤维素乙醇的用途。对残留物进行了水热（HT），碱性（AL）和酸碱性（AA）预处理，并评估了这些残留物的酶促水解效率。使用啤酒酵母UFLA CAll，啤酒酵母CAT-1和马克斯克鲁维酵母ATCC-36907在35、40和45摄氏度下进行SSF。AL预处理可以最好地去除木质素和半纤维素。另外，用AL处理的干燥残余物的酶水解将64.43％的木质纤维素生物质转化为糖。使用在45摄氏度下培养的马克斯克鲁维酵母ATCC-36907对AL预处理的残留物的SSF产生7.53 g / L乙醇。 （C）2018 Elsevier Ltd.保留所有权利。

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