Pectic oligosacharides from lemon peel wastes: production, purification, and chemical characterization.
Lemon peel wastes were extracted with water to remove free sugars and other soluble compounds, and the insoluble solid was employed as a substrate for the manufacture of pectin-derived oligosaccharides by processing with hot, compressed water. When water-extracted lemon peel wastes were treated with water at 160 °C, the oligomer concentration reached the maximum value (31 g/L). Autohydrolysis liquors were subjected to two membrane filtration stages (diafiltration followed by concentration), yielding a refined product containing about 98 wt % of oligomers at a global yield of 14 kg/100 kg oven-dry lemon peel. The concentrate contained oligogalacturonides (with DP in the range of 2-18) and arabinooligosaccharides (with DP in the range of 2-8).
Department of Chemical Engineering, Faculty of Science, University of Vigo (Campus Ourense) , As Lagoas, 32004 Ourense, Spain.
Belén
B
Gómez
Beatriz
B
Gullón
Remedios
R
Yáñez
Juan C
JC
Parajó
Jose L
JL
Alonso
D002957:Citrus / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry*; D009844:Oligosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D010368:Pectins / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D014866:Waste Products / Q000032:analysis*
D009844:Oligosaccharides; D010936:Plant Extracts; D014866:Waste Products; D010368:Pectins