Modelling and analysis of critical factors for phorbol ester degradation in Jatropha seed cake using ISM and MICMAC
by Shilpi Ahluwalia; Pushpendra Singh; Jaigopal Sharma
International Journal of Environment and Waste Management (IJEWM), Vol. 21, No. 4, 2018

Abstract: Jatropha seeds have been used extensively nowadays for the production of biodiesel which leaves behind large amounts of seed cake as a by-product. This by-product has a good nutritional value as it is rich in lignocellulosic compounds, water, minerals and proteins but at the same time contains toxic compounds like phorbol esters (PE) which makes it unfit to be used as feed supplement. It becomes imperative to detoxify and utilise this by-product (seed cake) for animal consumption and thereby helping in decreasing the cost of biodiesel industry. Eleven major factors were identified in detoxification of Jatropha seed cake and analysed for their inter-relationship using interpretive structural modelling (ISM). Temperature (level IV) is found to be the most crucial factor affecting all other factors for successful implementation of the detoxification process. PE, pH, RPM, esterase and inoculum (level III) were identified as next crucial set of factors followed by tannins (level II). Matriced impacts croises-multiplication applique' and classment (MICMAC) analysis was used to recognise the factor dependency in detoxification. Out of eleven factors, nine factors have been identified as linkage variables; one each as the driver and dependence variable. No autonomous variable was identified.

Online publication date: Wed, 25-Jul-2018

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