E-Locus - Institutional Repository of the University of Crete - Αξιολόγηση βακτηρίων για βιομετατροπές φαινολικών συστατικών των υγρών αποβλήτων ελαιουργίας (ΥΑΕ) σε ουσίες υψηλής προστιθέμενης αξίας / Τίτος Μαυράκης.

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Identifier

000351396

Title

Αξιολόγηση βακτηρίων για βιομετατροπές φαινολικών συστατικών των υγρών αποβλήτων ελαιουργίας (ΥΑΕ) σε ουσίες υψηλής προστιθέμενης αξίας / Τίτος Μαυράκης.

Alternative Title

Evaluation of bacterial strains for bio-conversion of olive mills wastes waters phenolics to high added value compounds

Author

Μαυράκης, Τίτος Νικ.

Thesis advisor

Στεφάνου, Ευριπίδης

Abstract

Olive mill wastewaters (OMWW) constitute an important pollutant factor in the Mediterranean countries where 97% of the world olive oil is produced. Important restoration efforts have taken place in the past, u sing fungi. Even though bacteria based investigations are limited, they have produced optimistic results relating with the reduction of polyphenols, which are the major polluting ingredients from OMWW, which due to the oxidation and polymerization process, are transformed to very toxic chemical cοmpounds for the environment. Within this present thesis, checked the ability of 2 bacterial strains, which were isolated from OMWW, to bio -conversion to high added value compounds. To optimize the tyrosol and hydroxytrosol production after incubation of strains 8 and 14 with diluted (1/10) OMWW, restings cells were used. Results were very encouraging, considering that resting cells of strain 8 increase hydroxytyrosol contretation in a yield of 100% after 7hr. incu bation. Significant also increase (50%) of tyrosol concentration observed for both of strains (8 and 14)

Language

Greek

Subject

Olive mill wastewater

bioconversion

biotransformation

ferulic acid

hydroxytyrosol

phenols

resting cells

tyrosol

Υγρά απόβλητα ελαιουργείων