Genetic strategies to accomplish cellulosic ethanol production

Advances in genomics and genetics Pub Date : 2011-01-01 DOI:10.14456/TJG.2011.12

Tanathorn Vitisant, Chompunuch Virunanon, W. Chulalaksananukul

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Abstract

Cellulosic ethanol production is one of thefuels which play an important role for human naturein the near future. However, ethanol production atpresent uses sugar feedstock substrate from sugarcane and starch from cassava. These substrates arefood resources for human and animals thus are notappropriate substrates for liquid fuel production. Forthis reason, cellulosic biomass from cellulose andhemicellulose is an alternative option for liquid fuelproduction to overcome competitive problems onfood cultivated area. However, higher cost ofcellulosic ethanol production than petroleum fuels is an important issue that has an impact on liquid fuelmanufacture. In this review, useful strategies forcellulosic ethanol process improvement aredescribed in order to create potent alternative energywith economically and commercially acceptableprofit. The strategies can be divided into three parts:first, production of hydrolysis enzyme by plant;second, pretreatment of biomass by controllinglignin and cellulose property; and third, increasingpolysaccharide amount in biomass for ethanolfermentation. In sumary, all strategies will beenhanced together to access the goal to develop theuse of cellulosic ethanol in the near future.

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实现纤维素乙醇生产的遗传策略

纤维素乙醇生产是在不久的将来对人类自然发挥重要作用的燃料之一。然而，目前的乙醇生产使用甘蔗中的糖原料和木薯中的淀粉。这些底物是人类和动物的食物资源，因此不适合用于生产液体燃料。因此，来自纤维素和半纤维素的纤维素生物质是液体燃料生产的替代选择，以克服粮食种植面积的竞争问题。然而，纤维素乙醇生产成本高于石油燃料是影响液体燃料制造的一个重要问题。在这篇综述中，描述了纤维素乙醇工艺改进的有用策略，以创造具有经济和商业上可接受利润的有效替代能源。该策略可分为三部分:第一，植物生产水解酶;第二，通过控制木质素和纤维素性质对生物质进行预处理;第三，增加生物质中多糖的量用于乙醇发酵。总之，在不久的将来，所有的策略都将得到加强，以实现开发使用纤维素乙醇的目标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Advances in genomics and genetics

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