American Journal of Microbiological Research
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American Journal of Microbiological Research. 2013, 1(3), 39-44
DOI: 10.12691/ajmr-1-3-1
Open AccessArticle

Cooling System Economy in Ethanol Production Using Thermotolerant Yeast Kluyveromyces Sp. IIPE453

Sachin Kumar1, 2, , Pratibha Dheeran3, 4, Surendra P. Singh5, Indra M. Mishra6 and Dilip K. Adhikari3

1Sardar Swaran Singh National Institute of Renewable Energy, Kapurthala, India

2Biotechnology Area, Indian Institute of Petroleum, Dehradun, India;Department of Chemical Engineering, Indian Institute of Technology, Roorkee, India

3Biotechnology Area, Indian Institute of Petroleum, Dehradun, India

4SRM Research Institute, SRM University, Kattankulathur, Tamilnadu, India

5Department of Paper Technology, Indian Institute of Technology, Roorkee, Saharanpur Campus, India

6Department of Chemical Engineering, Indian Institute of Technology, Roorkee, India

Pub. Date: April 23, 2013

Cite this paper:
Sachin Kumar, Pratibha Dheeran, Surendra P. Singh, Indra M. Mishra and Dilip K. Adhikari. Cooling System Economy in Ethanol Production Using Thermotolerant Yeast Kluyveromyces Sp. IIPE453. American Journal of Microbiological Research. 2013; 1(3):39-44. doi: 10.12691/ajmr-1-3-1

Abstract

The growth of thermotolerant/ thermophilic ethanol producing yeast and the fermentation processes using sugary substrates are exothermic processes. If the fermenters are heat insulated, the requirement of heat for maintaining the fermentation broth for ethanol production may be reduced considerably. The heat generated due to growth of thermotolerant yeast Kluyveromyces sp. IIPE453 was found to be 652kJ mol-1 at 50°C using glucose as a substrate. The heat generated due to ethanol formation by Kluyveromyces sp. IIPE453 was found to be 132.54kJ mol-1 of sugar consumed or 67.84kJ mol-1 of ethanol produced at 50°C using sugarcane molasses as substrate. This heat would be sufficient for maintaining the desired temperature, if insulated fermentation systems are used. Therefore, no additional heat would be required to maintain the temperature in fermentation process by thermotolerant yeast at 50°C.

Keywords:
metabolic heat bioreactor ethanol fermentation thermotolerant yeast cooling water

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