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首页> 外文期刊>Bioprocess and Biosystems Engineering >An effective surfactant-assisted hydrothermal pretreatment strategy for bioethanol production from chili post-harvest residue by separate hydrolysis and fermentation
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An effective surfactant-assisted hydrothermal pretreatment strategy for bioethanol production from chili post-harvest residue by separate hydrolysis and fermentation

机译:一种有效的表面活性剂辅助水热预处理策略,用于通过分离水解和发酵从收获后的辣椒中生产生物乙醇

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摘要

Surfactants play major role in the delignification of lignocellulosic biomass. Surfactant-assisted hydrothermal pretreatment was evaluated for chili post-harvest residue. Maximum reducing sugar yield of 0.445 g per g of dry biomass (g/g) was obtained when surfactant PEG 6000 was used. Compositional analysis revealed an efficient removal of lignin and hemicelluloses from the pretreated biomass. Fermentation inhibitors such as furfural, 5-hydroxymethylfurfural and organic acids were absent in the hydrolyzate. After pretreatment, the biomass can be directly hydrolyzed without any neutralization, washing and drying, and the hydrolyzate is devoid of major fermentation inhibitors. Fermentation with Saccharomyces cerevisiae yielded 1.84% of ethanol with a fermentation efficiency of 63.88%.
机译:表面活性剂在木质纤维素生物质的脱木质素中起主要作用。评价了表面活性剂辅助的水热预处理中辣椒收获后的残留量。当使用表面活性剂PEG 6000时,最大还原糖产量为0.445 g / g干生物质(g / g)。组成分析显示从预处理的生物质中有效去除了木质素和半纤维素。水解产物中不存在发酵抑制剂,例如糠醛,5-羟甲基糠醛和有机酸。预处理后,无需进行任何中和,洗涤和干燥即可直接水解生物质,并且水解产物不含主要的发酵抑制剂。酿酒酵母发酵产生的乙醇为1.84%,发酵效率为63.88%。

著录项

  • 来源
    《Bioprocess and Biosystems Engineering》 |2018年第4期|565-571|共7页
  • 作者单位

    CSIR, Natl Inst Interdisciplinary Sci & Technol, Microbial Proc & Technol Div, Trivandrum 695019, Kerala, India;

    CSIR, Natl Inst Interdisciplinary Sci & Technol, Microbial Proc & Technol Div, Trivandrum 695019, Kerala, India;

    CSIR, Natl Inst Interdisciplinary Sci & Technol, Microbial Proc & Technol Div, Trivandrum 695019, Kerala, India;

    CSIR, Natl Inst Interdisciplinary Sci & Technol, Microbial Proc & Technol Div, Trivandrum 695019, Kerala, India;

    IITR, CSIR, 31 MG Marg, Lucknow 226001, Uttar Pradesh, India;

    Ecole Polytech Fed Lausanne, Inst Urban & Reg Sci, GC A3, CH-1015 Lausanne, Switzerland;

    Univ Jaen, Dpt Ingn Quim Ambiental & Mat Edificio, B3-405 Campus Las Lagunillas S-N, Jaen 23071, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Pretreatment; Bioethanol; Hydrolysis; Chili;

    机译:预处理;生物乙醇;水解;辣椒;

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