Original and Residual Phytotoxicity of Olive Mill Wastewater Revealed

11254

J. Agric. Food Chem. 2009, 57, 11254–11260 DOI:10.1021/jf901984k

Original and Residual Phytotoxicity of Olive Mill Wastewater Revealed by Fractionations before and after Incubation with Pleurotus ostreatus IDO AVIANI,†,‡,§ MICHAEL RAVIV,‡ YITZHAK HADAR,§ IBRAHIM SAADI,† AND YAEL LAOR*,† † Agricultural Research Organization, Institute of Soil, Water and Environmental Sciences, Newe Ya’ar Research Center, Ramat Yishay 30095, Israel, ‡Agricultural Research Organization, Institute of Plant Sciences, Newe Ya’ar Research Center, Ramat Yishay 30095, Israel, and § Department of Microbiology and Plant Pathology, Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, P.O. Box 12, Rehovot 76100, Israel

Concentrations of dissolved organic carbon (DOC) and total phenols (TP), and the phytotoxicity to cress (Lepidium sativum L.) were determined for three molecular-sized fractions of olive mill wastewater (OMW), 5000 Da, before and after incubation with Pleurotus ostreatus. The