IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Physico-chemical and toxicological assessment of liquid wastes from olive processing-related industries
Autor/es:
PIERANTOZZI P.; ZAMPINI C.; TORRES M.; ISLA M.I.; VERDENELLI R.A.; MERILES J.M.; MAESTRI D.
Revista:
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
Editorial:
JOHN WILEY & SONS LTD
Referencias:
Lugar: Londres; Año: 2012 vol. 92 p. 216 - 223
ISSN:
0022-5142
Resumen:
BACKGROUND: In the last few years, agricultural uses of waste waters from olive processing-related industries have been gaining interestmainlywith a view to composting or bio-fertilizers. The present work examines physico-chemical, toxicological and geno-toxicological properties of three liquidwastes, namely olivemill wastewater (OMWW), olivewet husk and olive brine. The effect of OMWWspreading on soilmicrobial activity and biomass was also evaluated. RESULTS: Data from Artemia salina and Lactuca sativa toxicity tests indicated high levels of lethality, and inhibitory effects on seed germination and seedling growth of all olive wastes. The genotoxicity assays using Allium cepa tests showed contrasting results. At high concentrations, olivewastes caused inhibition or suppression of mitosis. However, they did not produce induced anaphase aberrations. Data on reversion of Salmonella thyphimurium strains using the Ames test indicated that the olivewastes did not present mutagenic activity. Results from the field experiment showed that OMWW at a 500m3 ha-1 had the highest values of both soil microbial activity and biomass after 3months of the amendment application. CONCLUSION: This work adds new data for environmental risk assessment of olive industrial wastes. Direct use of olive wastes for agricultural purposes should be limited owing to their possible chemotoxic, phytotoxic and antimicrobial effects.