New strategies for bioremediation of olive oil mill wastewaters using non-conventional microorganisms

Abstract

Two approaches were developed in order to select microorganisms suitable to be used in olive millwastewaters bioremediation. By the first approach, three hundred yeasts were isolated from fiveindustrial mills and identified by molecular analysis. The different strains were selected accordingto their capacity to grow in OMW (olive mill wastewaters) as the sole carbon source and to reducephenolics, chemical oxygen demand (COD) and antimicrobial compounds. One Geotrichum candidumisolate was used to set up a whole-cell immobilization system in calcium alginate gel andthe COD and phenolic reduction obtained using the immobilized cells showed respectively a 2.2-and 2-fold increase compared to the removal obtained using free cells. By the second approach, anew protocol was developed to isolate and select aerobic microorganisms from different industrialsamples and environmental niches (soils, OMWs) and able to detoxify olive mill wastewaters.


Tutti gli autori

  • Bleve G.; Lezzi C.; Durante M.; Ramires F.A.; Mita G.; Perrotta C.; Rampino P.; Logrieco A.; Grieco F.

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Anno di pubblicazione

2012

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