4 documents found, page 1 of 1
An integrated olive stone biorefinery based on a two-step fractionation strategy
Padilla-Rascón, Carmen; Carvalheiro, Florbela; Duarte, Luís C.; Roseiro, Luisa B.; Ruiz, Encarnación; Castro, EulogioABSTRACT: Olive stones (OS) constitute a waste lignocellulosic material produced by the olive oil industry in great amounts, that currently is only used as a low-value energy source for industrial or domestic boilers. Having in view its full valorization, this work proposes and validates an integrated strategy aiming to obtain three different streams of sugars / lignin-derived compounds. Dilute acid hydrolysis ...
Production, purification and characterisation of oligosaccharides from olive tr...
Cara, Cristóbal; Ruiz, Encarnación; Carvalheiro, Florbela; Moura, Patrícia; Ballesteros, Ignacio; Castro, Eulogio; Gírio, FranciscoThe production of oligosaccharides (OS) by olive tree pruning autohydrolysis in the range 170–230 °C was studied. The best results in terms of maximum yield of OS along with a low amount of byproducts were obtained at 180 °C. After purification by preparative gel filtration chromatography a range of OS-fractions with average degree of polymerisation (DP) from 25 to 3 was selected for further characterisation. G...
Production, purification and characterisation of oligosaccharides from olive tr...
Cara, Cristóbal; Ruiz, Encarnación; Carvalheiro, Florbela; Moura, Patrícia; Ballesteros, Ignacio; Castro, Eulogio; Gírio, FranciscoThe production of oligosaccharides (OS) by olive tree pruning autohydrolysis in the range 170–230 °C was studied. The best results in terms of maximum yield of OS along with a low amount of byproducts were obtained at 180 °C. After purification by preparative gel filtration chromatography a range of OS-fractions with average degree of polymerisation (DP) from 25 to 3 was selected for further characterisation. G...
An approach to optimization of enzymatic hydrolysis from sugarcane bagasse base...
Mesa, Leyanis; González, Erenio; Cara, Cristóbal; Ruiz, Encarnación; Castro, Eulogio; Mussatto, Solange I.The organosolv pretreatment followed by enzymatic hydrolysis of the pretreated material and subsequent fermentation of the hydrolysate produced, was the strategy used for ethanol production from sugarcane bagasse. The effect of different operational variables affecting the pretreatment (the catalyst type and its concentration, and the pretreatment time) and enzymatic hydrolysis stage (substrate concentration, c...