Rapid Determination of Carbohydrates, Ash, and Extractives Contents of Straw Using Attenuated Total Reflectance Fourier Transform Mid-Infrared Spectroscopy
Rapid Determination of Carbohydrates, Ash, and Extractives Contents of Straw Using Attenuated Total Reflectance Fourier Transform Mid-Infrared Spectroscopy
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DOI：
10.1021/jf200078h
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发表时间：
2011-06-22
影响因子：
6.1
通讯作者：
Mazza, Giuseppe
中科院分区：
文献类型：
--
作者：
Tamaki, Yukihiro;Mazza, Giuseppe
分析木质纤维素生物质的化学成分对于了解其利用潜力至关重要。中红外光谱和偏最小二乘回归用于快速测量的碳水化合物（总聚糖，葡聚糖，木聚糖，半乳聚糖，阿拉伯聚糖，甘露聚糖），灰分和提取物含量的小黑麦和小麦秸秆。基于斜率、r（2）、RPD和R/SEP标准，总聚糖、葡聚糖和提取物的校准模型显示出良好和出色的预测性能。木聚糖模型显示出良好的和可接受的预测性能。然而，灰分模型被评价为仅提供近似定量和筛选。半乳聚糖、阿拉伯聚糖和甘露聚糖的模型表明应用预测较差且不足。大多数模型可以预测小黑麦和小麦秸秆样品具有相同的精度。中红外光谱技术结合偏最小二乘回归可用于快速预测小黑麦和小麦秸秆样品中的总聚糖、葡聚糖、木聚糖和浸出物。
Analysis of the chemical components of lignocellulosic biomass is essential to understanding its potential for utilization. Mid-infrared spectroscopy and partial least-squares regression were used for rapid measurement of the carbohydrate (total glycans; glucan; xylan; galactan; arabinan; mannan), ash, and extractives content of triticale and wheat straws. Calibration models for total glycans, glucan, and extractives showed good and excellent predictive performance on the basis of slope, r(2), RPD, and R/SEP criteria. The xylan model showed good and acceptable predictive performance. However, the ash model was evaluated as providing only approximate quantification and screening. The models for galactan, arabinan, and mannan indicated poor and insufficient prediction for application. Most models could predict both triticale and wheat straw samples with the same degree of accuracy. Mid-infrared spectroscopic techniques coupled with partial least-squares regression can be used for rapid prediction of total glycans, glucan, xylan, and extractives in triticale and wheat straw samples.