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首页> 外文期刊>International Journal of Innovative Research in Science, Engineering and Technology >Production of Bioethanol from hitherto underutilized agro waste (Field beans/Green Pea pods waste) incorporating zero waste generation technique
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Production of Bioethanol from hitherto underutilized agro waste (Field beans/Green Pea pods waste) incorporating zero waste generation technique

机译：迄今未充分利用的农业废弃物（田间豆/豌豆荚废弃物）生产生物乙醇，并采用零废弃物产生技术

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With the inevitable depletion of world’s energy supply, there has been an increasing interest worldwide in alternative sources of energy. Unlike fossil fuels, ethanol is a renewable energy source produced through fermentation of sugars and can be used as a partial gasoline replacement. Bioethanol market is expected to reach 100 x10^9 liters in 2015. Currently, bioethanol is being commercially produced only from edible feedstock such as corn-starch and sugarcane juice. These bioethanol production systems pose a concern about the rising competition with food and feed supplies. Agro-waste wastes are generated in large amounts throughout the year, and are the most abundant renewable resources on earth. Due to the large availability and rich in composition of polymers that could be used in other processes, there is a great interest on the reuse of these wastes, both from economical and environmental view points. Very scanty research documents were reported on using alternative sources like Agro- waste for the production of bioethanol. With these lacunae the present investigation aimed in using agro-waste, a rich energy source to produce bioethanol. A suitable low cost anaerobic fermenter was designed and fabricated for bioethanol production under submerged culture conditions using Yeast (Saccharomyces cerevisiae). Agro waste biomass (field bean pods, field bean seed coat and green peas pods) was pre-treated (physical and mild acid treatment) and saccharified using consortium of fungal strains (Aspergillus sp.). On completion of the process, 90g of glucose/ kg was obtained. Glucose obtained was taken for the SmF process using Saccharomyces cerevisiae and the end product ethanol was estimated qualitatively and quantitatively by specific gravity method, 7.725g in comparison with the weight of pure ethanol 7.639 and Gas Chromatography (70.2% ethanol). A Conversion rate of, 250 ml of ethanol /kg of agro waste calculated. The spent yeast was dried (50g/litre) and used as peptone.
机译：随着世界能源供应不可避免的枯竭，全球范围内对替代能源的兴趣与日俱增。与化石燃料不同，乙醇是通过糖发酵产生的可再生能源，可以用作部分汽油替代品。预计2015年生物乙醇市场将达到100 x10 ^ 9升。目前，生物乙醇只能从可食用原料（例如玉米淀粉和甘蔗汁）中进行商业生产。这些生物乙醇生产系统对与食品和饲料供应的竞争加剧感到担忧。全年产生大量的农业废弃物，是地球上最丰富的可再生资源。由于可用于其他过程的聚合物的可用性高且成分丰富，因此从经济和环境的角度出发，人们对这些废物的再利用非常感兴趣。据报道，很少有研究文献使用农业废料等替代来源生产生物乙醇。利用这些缺陷，本研究的目的是利用农业废料，一种生产生物乙醇的丰富能源。设计并制造了适合的低成本厌氧发酵罐，用于使用酵母（Saccharomyces cerevisiae）在水下培养条件下生产生物乙醇。对农业废弃物生物量（田间豆荚，田间豆种皮和青豆荚）进行预处理（物理和弱酸处理），并使用真菌菌株（曲霉属）进行糖化。该过程完成后，获得了90g葡萄糖/ kg。使用酿酒酵母将获得的葡萄糖用于SmF工艺，通过比重方法定性和定量地评估最终产物乙醇，与纯乙醇7.639和气相色谱法（70.2％乙醇）的重量相比，定量为7.725g。计算得出的转化率为250毫升乙醇/千克农业废料。将用过的酵母干燥（50g /升）并用作蛋白ept。

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