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Production, purification and characterisation of oligosaccharides from olive tree pruning autohydrolysis

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Nov 2012 Portugal Publisher:Elsevier BVJournal:Industrial Crops and Products, volume 40, pages 225-231 (issn: 0926-6690,

Authors: Cara, Cristóbal; Ruiz, Encarnación; Carvalheiro, Florbela; Moura, Patrícia; Ballesteros, Ignacio; Castro, Eulogio; Gírio, Francisco;

doi: 10.1016/j.indcrop.2012.03.017

Production, purification and characterisation of oligosaccharides from olive tree pruning autohydrolysis

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Abstract

Abstract The 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. Gluco- and xylooligosaccharides were the predominant OS in these fractions. OS yields in the range 80–90% were obtained for fractions with average DP between 25 and 7, practically free of low molecular compounds. Both OS total yields and xylooligosaccharides proportion decreased for lower DP fractions while monosaccharides and other products concentrations increased. OS production and the recovery of other high value compounds can be envisaged as an interesting contribution to develop an olive-biomass biorefinery.

Country

Portugal

Related Organizations

National Laboratory of Energy and Geology
Portugal
University of Jaén
Spain
Complutense University of Madrid
Spain
University of Jaén
Spain

Keywords

Autohydrolysis, Gel filtration, Oligosaccharides, Biomass, Biorefinery

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