Preprint Communication Version 1 Preserved in Portico This version is not peer-reviewed

First application of different Chlorella sp. microalgal strains for the treatment of vegetation waters derived from unconventional oil extractions enriched with citrus byproducts

Version 1 : Received: 24 June 2021 / Approved: 25 June 2021 / Online: 25 June 2021 (11:42:54 CEST)

How to cite: Chiellini, C.; Macaluso, M.; Ciurli, A.; Guglielminetti, L.; Taglieri, I.; Sanmartin, C.; Bianchi, A.; Venturi, F.; Zinnai, A. First application of different Chlorella sp. microalgal strains for the treatment of vegetation waters derived from unconventional oil extractions enriched with citrus byproducts. Preprints 2021, 2021060616 (doi: 10.20944/preprints202106.0616.v1). Chiellini, C.; Macaluso, M.; Ciurli, A.; Guglielminetti, L.; Taglieri, I.; Sanmartin, C.; Bianchi, A.; Venturi, F.; Zinnai, A. First application of different Chlorella sp. microalgal strains for the treatment of vegetation waters derived from unconventional oil extractions enriched with citrus byproducts. Preprints 2021, 2021060616 (doi: 10.20944/preprints202106.0616.v1).

Abstract

The Mediterranean diet has among its cornerstones the use of olive oil for its nutraceutical and organoleptic properties. Despite the numerous merits, olive-oil mill wastewater (OMWW), which is generated by the olive-oil extraction process, is one of the most serious environmental pollutants in the Mediterranean countries. The polluting potential of OMWW is due to its high content of tannins, polyphenols, polyalcohols, pectins and lipids. In this experiment, we tested the ability of five microalgae of the Chlorella group (SEC_LI_ChL_1, CL-Sc, CL-Ch, FB and Idr) in lowering the percentage of total phenolic compounds in vegetation water. In order to close the recovery cycle of a fortified citrus olive oils previously developed, we tested the vegetation wa-ter obtained with three different extraction processes (conventional, lemon and orange peels) at three concentrations each (10%, 25% and 50%). Results showed that strains Idr, FB and CL-Sc from the Lake Massaciuccoli can tolerate vegetation water from conventional and lemon peels extraction up to 25%; these strains can also reduce the phenolic compounds within the tests. The results demonstrate that the application of microalgae for OMWW treatment represent an inter-esting opportunity, and an eco-friendly low-cost solution to be developed within the companies as a full-scale approach.

Subject Areas

olive-oil mill wastewater; wastewater; microalgae; Chlorella sp.; phenolic compounds

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.