Bioethanol Production From Waste Potatoes Using  Bacterium Zymomonas Mobilis Mtcc 2427

Sudhir Kumar Rai; L P S  Rajput; Yogendra Singh; Keerti Tantwai

doi:10.48165/

Authors

Sudhir Kumar Rai Biotechnology Centre, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur – 482 004 Madhya Pradesh (India)
L P S Rajput Biotechnology Centre, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur – 482 004 Madhya Pradesh (India)
Yogendra Singh Biotechnology Centre, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur – 482 004 Madhya Pradesh (India)
Keerti Tantwai Biotechnology Centre, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur – 482 004 Madhya Pradesh (India)

DOI:

https://doi.org/10.48165/

Keywords:

Bioethanol, biofuels, SiSF, fermentation, potato, Zymomonas mobilis

Abstract

The present study was carried out to assess bioethanol production from waste potatoes and optimize some fermentation variables for Zymomonas mobilis MTCC 2427. The waste potatoes contained 76% starch. Under solid state fermentation (SSF) maximum bioethanol of 14.17 g 100 mL-1 medium was achieved at 35°C when incubated for 120 hr. Under simultaneoussaccharification and fermentation (SiSF), highest ethanol yield of 14.36 g 100 mL-1 medium was attained at 35°C, pH 5.5 and 120 hr. The ethanol produced was volatile, flammable, colourless and miscible in water and organic solvents having pleasant smell. SiSF fermentation gave more ethanol recovery than SSF method.

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