New Method for Carbohydrates Determination in Sugarcane Bagasse by HPAEC-RPAD Using Glassy Carbon Electrode Modified with Carbon Nanotubes and Nickel Nanoparticles,Electroanalysis

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New Method for Carbohydrates Determination in Sugarcane Bagasse by HPAEC-RPAD Using Glassy Carbon Electrode Modified with Carbon Nanotubes and Nickel Nanoparticles
Electroanalysis ( IF 2.7 ) Pub Date : 2017-11-14 , DOI: 10.1002/elan.201700561
Acelino Cardoso de Sá _{1,

2} , Graziela Cristina Sedenho ₁ , Leonardo Lataro Paim ₃ , Nelson Ramos Stradiotto _{1,

2,

4}

Affiliation

Second generation ethanol can be produced from carbohydrates released from both sugarcane bagasse cell wall and sugarcane straw. The development of new method for the analysis of carbohydrates is, in this sense, seen as extremely relevant in the area of bioenergy. Based on the above considerations, the scope of this work encompasses the identification and quantification of carbohydrates composition in sugarcane bagasse without the need of sample derivatization, developing a novel analytical method using a glassy carbon electrode modified with multi-walled carbon nanotubes containing nickel oxyhydroxide nanoparticles (GCE/MWCNT/NiOOH) and applying the modified electrode as a detector in HPAEC (High Performance Anion-Exchange Chromatography) with reverse pulsed amperometric detection (RPAD) towards the determination of arabinose, galactose, glucose and xylose in hydrolyzed sugarcane bagasse. The carbohydrates concentrations determined in the hydrolyzed sugarcane bagasse were 6.1×10−4 mol L−1, 1.0×10−2 mol L−1 and 2.8×10−3 mol L−1 for arabinose, glucose, and xylose respectively. Our results showed that the present method is, in essence, attractive for analysis in the course of the production process of second generation ethanol production in that it does not require sample derivatization, has rapid run time, satisfactory separation, and can be used for the detection of carbohydrates without the interference of other electroactive species.

中文翻译：

碳纳米管和镍纳米粒子修饰玻碳电极的 HPAEC-RPAD 测定甘蔗渣中碳水化合物的新方法

第二代乙醇可以由甘蔗渣细胞壁和甘蔗秸秆释放的碳水化合物生产。从这个意义上说，开发用于分析碳水化合物的新方法被视为与生物能源领域极为相关。基于上述考虑，这项工作的范围包括在不需要样品衍生的情况下鉴定和量化甘蔗渣中的碳水化合物成分，开发一种使用含有羟基氧化镍纳米粒子的多壁碳纳米管改性的玻碳电极的新型分析方法。 (GCE/MWCNT/NiOOH) 并在 HPAEC（高性能阴离子交换色谱）中应用修饰电极作为检测器，使用反向脉冲安培检测 (RPAD) 测定阿拉伯糖、半乳糖、水解甘蔗渣中的葡萄糖和木糖。在水解甘蔗渣中测定的碳水化合物浓度分别为 6.1×10-4 mol L-1、1.0×10-2 mol L-1 和 2.8×10-3 mol L-1 阿拉伯糖、葡萄糖和木糖。我们的结果表明，本方法本质上对第二代乙醇生产过程中的分析具有吸引力，因为它不需要样品衍生，运行时间快，分离效果好，可用于在不受其他电活性物质干扰的情况下检测碳水化合物。

更新日期：2017-11-14

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