Online integrated fractionation-hydrolysis of lignocellulosic biomass using sub- and supercritical water

Development of a microwave pretreatment for the extraction of active compounds from natural by products

“…Sugar's hydrolysation (yield and selectivity) was maximum at 165ºC, but higher temperatures decreased it in favour of degradation reaction. This behaviour was in agreement with the data reported by other authors, since oligomers directly degrade into smaller oligomers and sugars (monomers) which would further degrade into several compounds, like organic acids or furfural (Piqueras et al, 2017). So, an optimal temperature of 155ºC represents a balance between these clashing tendencies.…”

Development of an integrated and green biorefinery from winery waste. Application to wine lees and grape stems

“…On the other hand, it can be checked that the simulated trend for the oligomers along the time does not follow the experimental trend (Figure 2.A). In contrast, it increased up to reach a plateau, which would agree with the expected behavior (Piqueras et al, 2017).…”

Some Advances in Supercritical Fluid Extraction for Fuels, Bio-Materials and Purification

“…German beech wood was treated with supercritical ethanol, optimally at 589 K, to produce bio-oil [47]. Pre-treatment by water at 453 to 623 K of holm oak was used to hydrolyze hemicellulose, and then supercritical water at 669 K at 24.5 MPa was used for extraction of low molecular mass products, e.g., lactic acid [48].…”