通过水解和发酵分离法利用当地玉米(玉米)废弃物生产生物乙醇

IF 5.4 Q2 ENGINEERING, ENVIRONMENTAL Journal of hazardous materials advances Pub Date : 2024-08-01 DOI:10.1016/j.hazadv.2024.100447
Adewale Allen Sokan-Adeaga , Serifat Adenike Salami , David Olalekan Bolade , Muhammad Aledeh , Micheal Ayodeji Sokan-Adeaga , Oluwatosin Emmanuel Amubieya , Samuel Abiodun Kehinde , Mahdi Farzadkia , Ghulam Md Ashraf , Edris Hoseinzadeh
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摘要

玉米是全球第二大常见作物。因此,每年在玉米加工活动中会产生大量玉米棒,这些玉米棒可以作为生物燃料生产的潜在非食用来源。这项研究的主要目的是评估利用废弃的玉米芯生产生物乙醇的实用性,具体分为两个步骤,即单独水解和共同发酵。经过 72 小时发酵后,乙醇产量最高,为 66.23 ± 8.35 mL/kg。重要的是,不同时间点的所有乙醇产量在 p < 0.05 时都具有统计学意义。此外,研究还发现,葡萄糖和总还原糖(TRS)产量之间存在很强的正相关性(r = 0.99,p < 0.01),乙醇产量和葡萄糖(r = -0.97,p < 0.05)以及乙醇和总还原糖(TRS)(r = -0.98,p < 0.05)之间存在负相关。结果表明,玉米芯废料作为生物乙醇生产的宝贵资源具有潜力。要提高利用玉米芯生产乙醇的经济可行性,必须大力改进操作流程。尼日利亚利用废弃物生产生物燃料得到了可再生燃料政策和资金的大力支持。利用玉米芯生产乙醇的经济可行性在很大程度上取决于其相对于其他废物处理方法的竞争力以及政策措施的有效性。
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Utilization of local corn (Zea Mays) wastes for bioethanol production by separate hydrolysis and fermentation

Maize is the second most-common crop globally. Thus, enormous maize cobs are generated annually from maize processing activities which could serve as a potential and non-edible source for biofuel production. The primary aim of this research was to assess the practicality of producing bioethanol from discarded maize cob through a distinct two-step process referred to as separate hydrolysis and co-fermentation. After a 72-hour fermentation period, the greatest ethanol yield of 66.23 ± 8.35 mL/kg was obtained. This was followed by 54.33 ± 7.27 35 mL/kg after 48 h, and 21.68 ± 2.97 35 mL/kg after 24 h. Importantly, all ethanol yields at different time points exhibited statistical significance at p < 0.05. Moreover, the study revealed a robust positive correlation (r = 0.99, p < 0.01) between glucose and Total reducing Sugars (TRS) yields, and negative correlations were observed between ethanol yield and glucose (r = -0.97, p < 0.05) as well as ethanol and TRS (r = -0.98, p < 0.05). The results indicate the potential of maize cob waste as a valuable resource for bioethanol production. Significant enhancements in operational processes are necessary to enhance the economic feasibility of producing ethanol from maize cobs. Nigeria's utilization of waste for biofuel production is bolstered by substantial policy and financial backing for renewable fuels. The economic viability of ethanol production from maize cobs relies heavily on its competitiveness relative to other waste treatment methods and the effectiveness of policy measures.

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来源期刊
Journal of hazardous materials advances
Journal of hazardous materials advances Environmental Engineering
CiteScore
4.80
自引率
0.00%
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0
审稿时长
50 days
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