Biorefinery of olive leaves to produce dry oleuropein aglycone: use of homemade ceramic capillary biocatalytic membranes in a multiphase system

Giuseppe Ranieri, Rosalinda Mazzei, Teresa Poerio, Fabio Bazzarelli, Zhentao Wu, Kang Li, Lidietta Giorno

Research output: Contribution to journalArticle

Abstract

Oleuropein aglycone is an important antioxidant compound produced during oleuropein hydrolysis, not yet commercially available. Its production from renewable material by green processes is a challenge because it permits waste re-use and low environmental impact. In this work, homemade asymmetric capillary ceramic membranes were used to develop biocatalytic membranes, which were further used to produce oleuropein aglycone from olive leaves and/or commercial oleuropein. Results indicated that the biocatalytic system (containing covalently immobilized β-glucosidase) promotes the hydrolysis of oleuropein in both monophase and multiphase processes. Furthermore, the multiphase biocatalytic system enables the extraction of the hydrophobic oleuropein aglycone in an organic phase, before its rearrangement in water. This was achieved by the production, of an unstable water-in-oil emulsion (permeate side), on the basis of membrane emulsification process. The intensified biocatalytic/extractor system allowed taking shelter the hydrophobic compound in the organic phase with good efficiency (90%), protecting it from rearrangement.
Original languageEnglish
Pages (from-to)149-156
JournalChemical Engineering Science
Volume185
Early online date7 Apr 2018
DOIs
Publication statusE-pub ahead of print - 7 Apr 2018

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Hydrolysis
Membranes
Ceramic membranes
Emulsification
Antioxidants
Emulsions
Environmental impact
Water
Glucosidases
oleuropein
Oils

Bibliographical note

© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

The authors acknowledge for the financial support the project PON01_01545, Oliopiù, within the framework PON Ricerca e Competitività 2007-2013.

Cite this

Ranieri, Giuseppe ; Mazzei, Rosalinda ; Poerio, Teresa ; Bazzarelli, Fabio ; Wu, Zhentao ; Li, Kang ; Giorno, Lidietta. / Biorefinery of olive leaves to produce dry oleuropein aglycone : use of homemade ceramic capillary biocatalytic membranes in a multiphase system. In: Chemical Engineering Science. 2018 ; Vol. 185. pp. 149-156.
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Biorefinery of olive leaves to produce dry oleuropein aglycone : use of homemade ceramic capillary biocatalytic membranes in a multiphase system. / Ranieri, Giuseppe; Mazzei, Rosalinda; Poerio, Teresa; Bazzarelli, Fabio; Wu, Zhentao; Li, Kang; Giorno, Lidietta.

In: Chemical Engineering Science, Vol. 185, 07.04.2018, p. 149-156.

Research output: Contribution to journalArticle

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AU - Li, Kang

AU - Giorno, Lidietta

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