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Second-generation ethanol from pineapple leaf fibers

机译:来自菠萝叶纤维的第二代乙醇

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The use of different lignocellulosic residues for the production of cellulosic ethanol is an alternative for the expanding demand of this fuel without increasing the planting area of traditional carbohydrate crops. One of the proposed alternatives is the use of pineapple leaf fibers (PALF) residues, which is a material rich in cellulose that can be used as raw material for second-generation (2G) ethanol production. In this study, the PALF was pretreated using an alkaline medium combined with a steam explosion and the 2G ethanol produSction was analyzed by two-way processes to enzymatic hydrolysis using separated hydrolysis and fermentation (SHF) or simultaneous saccharification and fermentation (SSF). Using SHF, the alcoholic fermentation process with addition of molasses provided good fermentability and can handle larger loads of carbohydrate in shorter fermentation time. The SSF was a better method for 2G ethanol production from PALF yielding 96.12%. Therefore, PALF is presented as good raw material for production of 2G ethanol, with all the environmental and social advantages of such approach.
机译:使用不同的木质纤维素残留物用于生产纤维素乙醇是替代这种燃料的需求而不增加传统碳水化合物作物的种植面积的替代方案。其中一个拟议的替代方案是使用菠萝叶纤维(PALF)残留物,其是富含纤维素的材料,其可用作第二代(2G)乙醇生产的原料。在本研究中,使用碱性介质预处理帕尔,通过双向方法与酶水解和发酵(SHF)或同时糖化和发酵(SSF)通过双向过程分析2g乙醇前溶剂。使用SHF,添加糖蜜的酒精发酵方法提供了良好的发酵性,并且可以在更短的发酵时间内处理较大的碳水化合物。 SSF是PALF的2g乙醇生产的更好方法,得到96.12%。因此,PALF作为生产2g乙醇的良好原料,具有这种方法的所有环境和社会优势。

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