Hemicelluloses obtaining from rapeseed cake residue generated in the biodiesel production process

Improving the nutritional value of rapeseed cake and wheat dried distillers grains with solubles by addition of enzymes during liquid fermentation

“…This indicated the presence of hemicellulose in the form of xyloglucans and xylans, and pectin, which were also found in other studies analysing the polysaccharide fraction of RSC and RSM (Ghosh et al, 2004;Pustjens et al, 2013). Rapeseed co-products are characterised by high levels of pectin (Egües et al, 2010;Pustjens et al, 2013); this was confirmed in the current study by the presence of 58 g uronic acids/kg DM. Pectic structures often have arabinan side-chains (Thakur et al, 1997), which are responsible for the high level of arabinose in the samples (48 g/kg).…”

“…Pectic structures often have arabinan side-chains (Thakur et al, 1997), which are responsible for the high level of arabinose in the samples (48 g/kg). Other possible sources of arabinose in rapeseed co-products are arabinoxylans, arabinans and arabinogalactans (Ghosh et al, 2004;Egües et al, 2010;Pustjens et al, 2013). Due to the high amount of pectin in RSC and RSM, the cell wall is very tightly associated (Pustjens et al, 2013), which together with the relatively high lignin content of RSC (Gdala et al, 1997), are responsible for the high insolubility of NSP in the RSC (in the current study 83% of total NSP being insoluble).…”

A Bibliometric Study of Scientific Publications regarding Hemicellulose Valorization during the 2000–2016 Period: Identification of Alternatives and Hot Topics

“…The autohydrolysis process has been optimized for increasing the recovery of hemicellulose in the form of monomeric sugars (such as xylose, mannose and galactose) or the respective oligo-saccharides, as well as for improving the production of glucose in the subsequent enzymatic hydrolysis of the cellulosic fraction [107]. In addition to its application to traditional wood species, such as eucalyptus [108], or fast-growing energy crops, such as Paulownia [109], autohydrolysis has been successfully employed for the valorization of the hemicellulosic content of vegetal byproducts or waste materials, such as barley straw [110], rapeseed cake [111], vine shoots [112] and invasive species such as gorse [113]. The development of kinetic models has provided fundamental understanding for the identification and evaluation of the most appropriate conditions for optimal autohydrolysis processes [114].…”

Optimal conditions for hemicelluloses extraction from Eucalyptus globulus wood: hydrothermal treatment in a semi-continuous reactor

“…Cellulose and hemicellulose contained in woody biomass can be hydrolysed to monomeric sugars, which can be further fermented to ethanol, or can be converted in higher value products [1][2][3]. Xylose from hemicellulose, for instance, can be converted to furfural, which is a precursor used in different fields, such as oil refining, plastics, pharmaceutical, and agrochemical industries [4].…”