Bioethanol production from aspergillus niger 2081 by submerged batch fermentation using honeydew melon (cucumis melo) rinds as a substrate
List of Authors
  • Nithiya Paranjothi , Noura K. M. Salih

Keyword
  • Bioethanol, Honeydew melon rinds, Submerged batch fermentation, Aspergillus niger 2081

Abstract
  • Ethanol produced by fermentation of plant biomass is considered to be an environmentally friendly alternative to fossil fuels. In this research we used honeydew melon (Cucumis melo) as the substrate for the fermentation. The study was conducted to convert extracts from rinds syrup of Cucumis melo to ethanol in a batch fermentation process using Aspergillus niger 2081 and to determine the amount of bioethanol produced in various pH. The initial and final sugar concentration at different pH after batch fermentation by Aspergillus niger 2081 was investigated. The sugar concentration was decreased in all pH at the end of fermentation process. Utilizing Cucumis melo juice as diluent and supplemental feedstock for fermentation of processed sugar allowed complete fermentation with highest ethanol yield of 48.79% (384.91g/L obtained at pH 6). The initial sugar concentration of Cucumis melo rinds was 18.54 mg/mL and reduced to 0.94g ethanol per g sugar as a final sugar concentration. These results indicate that Cucumis melo juice; either as whole juice fermented on-site or as a waste stream from neutraceutical production represents an important first step towards production of biofuel and can be used as energy transducers that found to be economically favourable, compared to other fruit rinds.

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