Bioethanol production from Jatropha seed cake via dilute acid hydrolysis and fermentation by Saccharomyces cerevisiae
1 Sokoto Energy Research Centre, Usmanu Danfodiyo University Sokoto, Sokoto State Nigeria.
2 Department of Pure and Applied Chemistry, Faculty of Science, Usmanu Danfodiyo University Sokoto, Sokoto State Nigeria.
Research Article
GSC Biological and Pharmaceutical Sciences, 2021, 15(01), 049-054.
Article DOI: 10.30574/gscbps.2021.15.1.0088
Publication history:
Received on 25 February2021; revised on 02 April 2021; accepted on 04 April 2021
Abstract:
The interest in using Jatropha curcas L. as a feedstock for the production of bio-diesel is rapidly growing. Available literatures holds [promise for the simultaneous wasteland reclamation capability and oil yields of the plant hence fueling the Jatropha bio-ethanol hopes. This research investigated the bioconversion of cellulose from press cakes of Jatropha oil seeds, which is a byproduct from a biodiesel plant, into ethanol by using the methods of acid pretreatment, hydrolysis and fermentation by Saccharomyces cerevisiae. The process includes the pretreatment method of the finely ground cellulosic solid oilseed cake with dilute sulphuric acid and heating the mixture at a high temperature to break the crystalline structure of the lignocellulose to facilitate the hydrolysis of cellulosic component by dilute acids. About 63.33% ethanol was recovered as confirmed by the infra-red spectroscopy and the investigated physicochemical parameters show that the produced bioethanol holds promise for its use as a possible candidate for replacement for petroleum diesel.
Keywords:
Bioethanol; Bio-fuel; Jatropha curcas; Physic nut
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