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Qualitative and quantitative evolution of polyphenolic compounds during composting of an olive-mill waste-wheat straw mixture.
J Hazard Mater. 2009 Jun 15; 165(1-3):1119-23.JH

Abstract

Olive-mill wastes represent a significant environmental problem in Mediterranean areas due to their important production during a short period of time. Their high polyphenol, lipid and organic acid concentrations turn them into phytotoxic wastes. This work examined the evolution of polyphenolic compounds during the composting of an olive-mill waste-wheat straw mixture by using quantitative (Folin-Ciocalteu) and qualitative (High Pressure Liquid Chromatography, HPLC) analyses. The polyphenol content decreased strongly by 93% while the significant correlations obtained between polyphenol content and different humification indices and lignin losses suggested that polyphenols contribute to the synthesis of humic substances. In addition, the significant correlation found between germination index, polyphenols and humification indices must be related to the progressive substrate detoxification as humification process progressed, leading to a non-phytotoxic and partially humified end-product. Nine polyphenolic compounds were identified by HPLC, most of which had disappeared by the end of composting, when only traces of hydroxytyrosol, caffeic and syringic acids and oleuropein were detected.

Authors+Show Affiliations

Department of Soil and Water Conservation and Organic Waste Management, Centro de Edafología y Biología Aplicada del Segura, CSIC, Murcia, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19070426

Citation

Ait Baddi, G, et al. "Qualitative and Quantitative Evolution of Polyphenolic Compounds During Composting of an Olive-mill Waste-wheat Straw Mixture." Journal of Hazardous Materials, vol. 165, no. 1-3, 2009, pp. 1119-23.
Ait Baddi G, Cegarra J, Merlina G, et al. Qualitative and quantitative evolution of polyphenolic compounds during composting of an olive-mill waste-wheat straw mixture. J Hazard Mater. 2009;165(1-3):1119-23.
Ait Baddi, G., Cegarra, J., Merlina, G., Revel, J. C., & Hafidi, M. (2009). Qualitative and quantitative evolution of polyphenolic compounds during composting of an olive-mill waste-wheat straw mixture. Journal of Hazardous Materials, 165(1-3), 1119-23. https://doi.org/10.1016/j.jhazmat.2008.10.102
Ait Baddi G, et al. Qualitative and Quantitative Evolution of Polyphenolic Compounds During Composting of an Olive-mill Waste-wheat Straw Mixture. J Hazard Mater. 2009 Jun 15;165(1-3):1119-23. PubMed PMID: 19070426.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Qualitative and quantitative evolution of polyphenolic compounds during composting of an olive-mill waste-wheat straw mixture. AU - Ait Baddi,G, AU - Cegarra,J, AU - Merlina,G, AU - Revel,J C, AU - Hafidi,M, Y1 - 2008/11/05/ PY - 2008/06/20/received PY - 2008/10/28/revised PY - 2008/10/28/accepted PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2009/7/8/medline SP - 1119 EP - 23 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 165 IS - 1-3 N2 - Olive-mill wastes represent a significant environmental problem in Mediterranean areas due to their important production during a short period of time. Their high polyphenol, lipid and organic acid concentrations turn them into phytotoxic wastes. This work examined the evolution of polyphenolic compounds during the composting of an olive-mill waste-wheat straw mixture by using quantitative (Folin-Ciocalteu) and qualitative (High Pressure Liquid Chromatography, HPLC) analyses. The polyphenol content decreased strongly by 93% while the significant correlations obtained between polyphenol content and different humification indices and lignin losses suggested that polyphenols contribute to the synthesis of humic substances. In addition, the significant correlation found between germination index, polyphenols and humification indices must be related to the progressive substrate detoxification as humification process progressed, leading to a non-phytotoxic and partially humified end-product. Nine polyphenolic compounds were identified by HPLC, most of which had disappeared by the end of composting, when only traces of hydroxytyrosol, caffeic and syringic acids and oleuropein were detected. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19070426/Qualitative_and_quantitative_evolution_of_polyphenolic_compounds_during_composting_of_an_olive_mill_waste_wheat_straw_mixture_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)01623-3 DB - PRIME DP - Unbound Medicine ER -