Identification of best detoxification strategies for sustainable valorization of waste from Jatropha-based biodiesel industry: Compounding the benefits of plant-based vehicular fuel

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dc.contributor.authorVikas Phulia
dc.contributor.authorParimal Sardar
dc.contributor.authorAnkur Jamwal
dc.contributor.authorVikas Kumar
dc.contributor.authorShamna N.
dc.contributor.authorFemi J. Fawole
dc.contributor.authorBhushan N. Sanap
dc.contributor.authorN.P. Sahu
dc.contributor.authorSubodh Gupta
dc.date.accessioned2024-04-26T11:17:36Z
dc.date.available2024-04-26T11:17:36Z
dc.date.issued2021-11
dc.description.abstractBioenergy generated from plants is one of the best potential energy supplies. Recently, the non-edible Jatropha curcas has been considered one of the world’s most sustainable biofuel crops. Protein rich defatted Jatropha curcas kernel meal (DJKM) is toxic which contains phorbol esters (PEs, 1307 µg g−1) as a major toxic component, therefore it was detoxified through physical, chemical and solid-state fermentation treatments. Water soaking and moist heat treatment (autoclaving) had no significant effect on the PEs removal compared to control. Exposure of DJKM to electron beam radiation (2.5, 5, 10, 15 and 20 kGy) had a significant effect on PEs degradation and most efficient was at 25 kGy dose. Solvent extraction with either 90% methanol or 80% ethanol in combination with moist heat treatment was the most efficient method compared to other concentrations of methanol or ethanol. Solvent extraction of kernel meal through 0.2 or 0.3 M NaOH in 90% methanol and 0.1, 0.2 or 0.3 M NaOH in 80% ethanol, followed by moist heat treatment led to the removal of PEs completely. The PEs content in DJKM through highly alkaline methanol plus moist heat treatment (AM3.0) and ferric chloride & hydrogen peroxide plus moist heat treatments significantly (p < 0.05) decreased to 13.0 and 53.6 µg g−1, respectively. Non-alkaline solvent extraction of DJKM using either 90% methanol (M90H) or 80% ethanol (E80H) in addition to heating while magnetic stirring reduced PEs content significantly (p < 0.05) compared to control exhibiting 99.77 and 99.32% removal, respectively. The DJKM was free of PEs when it was treated via solid-state fermentation through Aspergillus niger fungus. Conclusively, chemical detoxification treatments are cumbersome, un-economical, and their incorporation in the diet may affect animal performance, whereas, the fermentation approach is cost economical, environmentally sustainable and offers greater efficiency.
dc.identifier.citation1
dc.identifier.doi10.1016/j.eti.2021.101911
dc.identifier.issn2352-1864
dc.identifier.urihttps://uilspace.unilorin.edu.ng/handle/123456789/13075
dc.publisherElsevier BV
dc.relation.ispartofEnvironmental Technology &amp; Innovation
dc.subjectChemical treatment
dc.subjectIrradiationJatropha kernel mealPhorbol estersSolid state fermentation
dc.subjectPhorbol esters
dc.subjectSolid state fermentation
dc.titleIdentification of best detoxification strategies for sustainable valorization of waste from Jatropha-based biodiesel industry: Compounding the benefits of plant-based vehicular fuel
dc.typejournal-article
oaire.citation.volume24

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