After the milling process, wheat bran’s oil content can be higher than 5% if the germ is not completely removed. Therefore, a de-oiling process would contribute to the valorization of waste in a circular economy approach. A Life Cycle Assessment study according to ISO 14040 (2006) was performed to compare the environmental impacts of two technologies for bran’s oil extraction: supercritical fluid (SFE) extraction techonology and solvent technology. Primary data were used for the SFE technology, whereas literature data were used for the solvent technology. Despite having several environmental advantages, results show that the environmental impacts of SFE techonology are higher than those of solvent technology for a percentage ranging from 61% to 95%, mainly due to higher electricity consumption. Improvement options for the SFE technology could be the efficiency optimisation, the use of renewable electricity and the recovery of heat produced.
Fantin V., B.P. (2018). Use of LCA to support symbiosis paths for the valorisation of agrifood residues.
Use of LCA to support symbiosis paths for the valorisation of agrifood residues
Fantin V.;Chiavetta C.;Cardenia V.;Rodriguez-Estrada M. T.;Gallina Toschi T.
2018
Abstract
After the milling process, wheat bran’s oil content can be higher than 5% if the germ is not completely removed. Therefore, a de-oiling process would contribute to the valorization of waste in a circular economy approach. A Life Cycle Assessment study according to ISO 14040 (2006) was performed to compare the environmental impacts of two technologies for bran’s oil extraction: supercritical fluid (SFE) extraction techonology and solvent technology. Primary data were used for the SFE technology, whereas literature data were used for the solvent technology. Despite having several environmental advantages, results show that the environmental impacts of SFE techonology are higher than those of solvent technology for a percentage ranging from 61% to 95%, mainly due to higher electricity consumption. Improvement options for the SFE technology could be the efficiency optimisation, the use of renewable electricity and the recovery of heat produced.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
