ISSN: 0973-7510

E-ISSN: 2581-690X

A. Arumugam , M. Saravanan and S. Harini
School of Chemical & Biotechnology, SASTRA University, Thirumalaisamudram, Thanjavur, India.
J. Pure Appl. Microbiol., 2016, 10 (1): 547-552
© The Author(s). 2016
Received: 01/11/2015 | Accepted: 27/12/2015 | Published: 31/03/2016

Ethanol is an important renewable biofuel which can be used in pure or blended form. Corncob is a residual waste from corn processing unit, is a cheap and abundant raw material which can be used for ethanol production. Due to the high content of cellulose corncob needed to be pretreatment in order to convert corncob to reducing sugar. Corncob was pretreatment in the alkali condition and hydrolysed with cellulases extracted from Aspergillus niger. A central composite design was adopted to determine the optimum levels of these factors. Sodium hydroxide solution by varying the factors such as sonication time (3-5 hrs), Temperature (40-80 C), and NaOH concentration (3-6 %). The product of hydrolysis was fermented using the bakers yeast to ethanol. The GCMS Analysis proves that the corncob is an efficient source for the production of ethanol with 96.214% pure.


Ethanol, Corncobs, Sodium hydroxide, Response surface methodology, Sonication.

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© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.