The potentiality of bioethanol production from corn (Zea mays L.) as a renewable source

  • M. N. Yesmin Institute of Environmental Science, Rajshahi University, Rajshahi, Bangladesh
  • M. A. K. Azad Institute of Environmental Science, Rajshahi University, Rajshahi, Bangladesh
  • M. Kamuruzzaman Tamaltala Agriculture and Tech. College, Natore-6400, Bangladesh
  • S. Ali Department of Soil Science, Sylhet Agricultural University, Sylhet-3100, Bangladesh

Abstract

Corn (Zea mays L.)  is one of the versatile crop which is used as food, feed, fodder and in recent past as a source of bio-fuel. The sub-tropical climate is very favorable for corn cultivation. Traditionally, corn was grown in South and Southeast Asia primarily as a subsistence food crop. Worldwide it is being cultivated in over 170 countries representing an area of 185 million ha with a productivity of 5.62 t ha-1 (FAO, 2017). Out of world corn production of 1037 million MT, SAARC countries comprising of Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka represent 3.2 % with a productivity of 3.8 t ha-1. Among SAARC countries, the highest productivity of 6.9 t ha-1 is reported in Bangladesh. Corn can be an important renewable source for bioethanol production. This research was carried out to evaluate Bangladeshi Corn for optimum bioethanol production. A 100 g of corn flour was mixed with 300 ml distilled water was blended and sterilized. The experiment was conducted with a temperature of 30 oC, pH 6.0 and 20 % sugar concentration. For alcoholic fermentation, 200 ml yeast (Saccharomyces cerevisiae CCD) was added to make the total volume 500 ml. Addition of small amount of 1750 unit α-amylase enzyme to the substrate solution was found to enhance the fermentation process quicker. After 6-days of incubation time corn produces 63.57 ml of ethanol with 13.33 % (v/v) purity. The non-filtered solution produces comparatively more ethanol (63.57 ml with 13.33 % purity) than the filtered solution (53.66 ml with 10 % purity). The purity can be increased by re-distillation process.   

Keywords: Corn, Bioethanol, Saccharomyces cerevisiae CCD, Alcoholic fermentation

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How to Cite
Yesmin, M. N., M. A. K. Azad, M. Kamuruzzaman, and S. Ali. “The Potentiality of Bioethanol Production from Corn (Zea Mays L.) As a Renewable Source”. Journal of Ecobiotechnology, Vol. 12, Sept. 2020, pp. 1-4, doi:https://doi.org/10.25081/jebt.2020.v12.5561.
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Research Articles