Bioethanol Production from Sugarcane Molasses an Industrial Waste Product

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Abstract

Due to recent increase in price hike of petroleum products, different efforts are being done throughout the world in search of an alternative source of fuel. For this reason, various agricultural countries are trying to produce their own fuel from plant based materials. Different types of biofuels like bioethanol, biodiesel, biohydrogen, biogas etc. are being investigated throughout the world. The type of the biofuel being produced depends upon the availability of the substrate. This review mainly focused on sugar industry waste called molasses, which is rich in fermentable sugars. The easiest form of the fuel that can be produced from sugar rich substrate is bioethanol, thus the review mainly focused on different methods of bioethanol production from molasses and the challenges related to this process. There are several factors that can affect the production of bioethanol that includes the type of substrate, the fermenting microorganisms, optimization of physicochemical parameters like pH, temperature, and the nutrient requirements of fermenting microbes for the conversion of sugar rich substrate into bioethanol. Moreover, the current scenario of the utilization of bioethanol as a fuel in various countries throughout the world was also discussed in this review.
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利用工业废料甘蔗糖蜜生产生物乙醇
由于最近石油产品价格的上涨,世界各地都在努力寻找替代燃料来源。由于这个原因,许多农业国家正在尝试用植物为基础的材料生产自己的燃料。世界各地正在研究不同类型的生物燃料,如生物乙醇、生物柴油、生物氢、沼气等。所生产的生物燃料的类型取决于底物的可用性。本文主要综述了糖蜜这种富含可发酵糖的制糖工业废弃物。从富含糖的底物中生产生物乙醇是最简单的燃料形式,因此本文主要介绍了从糖蜜中生产生物乙醇的不同方法以及与此过程相关的挑战。有几个因素可以影响生物乙醇的生产,包括底物的类型、发酵微生物、理化参数(如pH值、温度)的优化,以及将富含糖的底物转化为生物乙醇的发酵微生物的营养需求。此外,本文还讨论了目前世界各国生物乙醇作为燃料的使用情况。
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