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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Optimization of the Microwave-Assisted Ethanosolv Extraction of Lignocellulosic Compounds from the Bagasse of Agave angustifolia Haw Using the Response Methodology
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Optimization of the Microwave-Assisted Ethanosolv Extraction of Lignocellulosic Compounds from the Bagasse of Agave angustifolia Haw Using the Response Methodology

机译：利用响应方法，优化从龙舌兰雄杆菌甘蔗渣的甘蓝纤维素化合物的微波辅助乙醇溶解

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摘要

The main objective of this work was to optimize the process of fractionation of the bagasse of Agave angustifolia Haw, applying organosolv assisted with microwaves. The DCC was used to evaluate the effect of independent variables such as ethanol concentration (40, 50, and 60%) and reaction time (1, 1.5, and 2 h) on yield, cellulose and lignin percentages. Lignocellulosic fractions (F1 and F2) were obtained by means of organosolv assisted with microwave in an open system (atmospheric pressure) and a dosed system (controlled pressure). The lignocellulosic fractions were microstructurally characterized. The highest extraction yields (70.39%) were reached in the open system at 50% ethanol for 1.5 h. The highest percentages of LK (5.05%) were obtained in the closed system at 60% ethanol for 2 h. The SEM photomicrograph showed that the microstructure of F1 was retained even after treatment with 60% ethanol for 2 h, and the exposure of the fibrillar part was observed obtaining the disposition of pectin.
机译：这项工作的主要目的是优化龙舌兰雄刺的甘蔗渣的分馏过程，应用有机溶液辅助微波。的DCC用于评价独立变量，如乙醇浓度（40，50和60％）和反应时间（1,1.5，和2小时）产量，纤维素和木质素的百分比的影响。通过在开放系统（大气压）和给药系统（受控压力）中，通过有机溶胶术（F1和F2）通过有机溶胶辅助微波获得。木质纤维素级分是显微结构的表征。在50％乙醇中，在50％乙醇中达到最高提取产率（70.39％）1.5小时。在60％乙醇中在封闭系统中获得最高百分比的LK（5.05％）2小时。 SEM显微照片表明，甚至用60％乙醇处理2小时后，将保留F1的微观结构，并且观察到纤维部分的暴露获得果胶的布置。

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