Chemical and Thermal Characterization of Potato Peel Waste and Its Fermentation Residue as Potential Resources for Biofuel and Bioproducts Production
Chemical and Thermal Characterization of Potato Peel Waste and Its Fermentation Residue as Potential Resources for Biofuel and Bioproducts Production
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DOI：
10.1021/jf5019406
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发表时间：
2014-08-20
影响因子：
6.1
通讯作者：
McDonald, Armando G.
中科院分区：
文献类型：
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作者：
Liang, Shaobo;McDonald, Armando G.
对可再生燃料不断增长的需求引发了人们对替代废物利用的兴趣，例如含有可发酵碳水化合物的马铃薯皮废物（PPW）。使用混合微生物群落发酵 PPW 产生约 60% 未反应的 PPW 发酵残渣 (PPW-FR)。 PPW 和 PPW-FR 通过傅里叶变换红外 (FTIR) 和核磁共振 (NMR) 光谱、气相色谱质谱 (GC-MS) 和热重分析 (TGA) 的组合来表征，以量化发酵后的变化。 PPW 的发酵导致淀粉发酵并浓缩 PPW-FR 中的木质素、木栓质和脂质。 TGA 分析显示 PPW（423 摄氏度）和 PPW-FR（457 摄氏度）的分解峰不同。热解-GC/MS 显示发酵后 PPW 中酚类和长链脂肪酸化合物增加，同时碳水化合物衍生化合物减少。 PPW 和 PPW-FR 都显示出基于通过热化学过程转化为粗生物燃料的特性的潜力。
The growing demand for renewable fuels has driven the interest in the utilization of alternative waste materials such as potato peel waste (PPW) which contains fermentable carbohydrate. Fermentation of PPW using a mixed microbial consortium yielded about 60% unreacted PPW fermentation residue (PPW-FR). The PPW and PPW-FR were characterized by a combination of Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies, gas chromatography mass spectrometry (GC-MS), and thermogravimetric analysis (TGA) to quantify changes after fermentation. Fermentation of PPW resulted in fermentation of starch and concentrating lignin plus suberin and lipids in PPW-FR. TGA analysis showed that decomposition peaks differed for PPW (423 degrees C) and PPW-FR (457 degrees C). Pyrolysis-GC/MS showed an increase in phenolic and long chain fatty acid compounds with a concomitant decrease in carbohydrate derived compounds in the PPW after fermentation. Both the PPW and PPW-FR have shown potential based on properties to be converted into crude biofuel via thermochemical processes.