In the last years the decreasing availability and increasing price of fossil resources, as well as global climate changes, forced scientists to focus the attention on the biorefinery concept. Agriculture food processing wastes (AFWs) are potential feedstock for biorefinery processes. Pretreatment and enzymatic hydrolysis are required to reach an efficient recovery of monomeric fermentable sugars form the biomass feedstock. The first step concerns removal and potential valorization of non-fermentable lignin and is commonly called biomass pretreatment. Current research is focused on the selection of novel processes for biomass pretreatment able to provide extended lignin removal and cost saving with respect to conventional pretreatments (e.g. steam explosion). This contribution reports on the study of ultrasound-assisted acid pretreatment (USAAP) of the AFW coffee silverskin (CS). The effects of several pretreatment variables, such as time and power of sonication, biomass loading and acid concentration, were studied using Response Surface Methodology (RSM).
Lignin removal for biomass biorefinery: ultrasound-assisted dilute acid pretreatment of coffee silverskin
M E Russo;
2016
Abstract
In the last years the decreasing availability and increasing price of fossil resources, as well as global climate changes, forced scientists to focus the attention on the biorefinery concept. Agriculture food processing wastes (AFWs) are potential feedstock for biorefinery processes. Pretreatment and enzymatic hydrolysis are required to reach an efficient recovery of monomeric fermentable sugars form the biomass feedstock. The first step concerns removal and potential valorization of non-fermentable lignin and is commonly called biomass pretreatment. Current research is focused on the selection of novel processes for biomass pretreatment able to provide extended lignin removal and cost saving with respect to conventional pretreatments (e.g. steam explosion). This contribution reports on the study of ultrasound-assisted acid pretreatment (USAAP) of the AFW coffee silverskin (CS). The effects of several pretreatment variables, such as time and power of sonication, biomass loading and acid concentration, were studied using Response Surface Methodology (RSM).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
