Chemical Production of Pectic Oligosaccharides from Orange Peel Wastes
Martina Martínez, Remedios Yáñez, José Luis Alonsó, Juan Carlos Parajó
Industrial & Engineering Chemistry Research
Abstract
Orange peel wastes (OPW) were extracted with water to remove soluble material, and the resulting solid phase (which was obtained at a yield of 48.8 kg/100 kg of OPW, oven-dry basis) was employed as a substrate for the manufacture of pectic oligosaccharides by nonisothermal processing with hot, compressed water (autohydrolysis or hydrothermal treatments). The effects of treatments on the composition of both liquors and spent solids were assessed in terms of the severity factor (Ro). Operating under selected conditions (maximum temperature of 160 °C, corresponding to Ro = 288 min), the oligosaccharide yield (including oligogalacturonides, arabinooligosaccharides, and galactooligosaccharides) accounted for 25.1 kg/100 kg of extracted OPW, whereas limited concentrations monosaccharides and nonsaccharide compounds were present in the reaction media.
Extracted Claims
3 claims extracted from this paper into the knowledge graph
hydrothermal treatments produced oligosaccharides
“the oligosaccharide yield (including oligogalacturonides, arabinooligosaccharides, and galactooligosaccharides) accounted for 25.1 kg/100 kg of extracted OPW”
orange peel wastes extracted with water
“Orange peel wastes (OPW) were extracted with water to remove soluble material”
hydrothermal treatments performed at 160 °C
“Operating under selected conditions (maximum temperature of 160 °C, corresponding to Ro = 288 min)”