Organic matter evolution and partial detoxification in two-phase olive mill waste colonized by white-rot fungi

Sampedro, Inmaculada; Marinari, Sara; D’Annibale, Alessandro; Grégo, S.; Ocampo, J. A.; García-Romera, Inmaculada

doi:10.1016/j.ibiod.2007.02.001

Cited by 54 publications

(48 citation statements)

References 31 publications

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“…2,4-Dichlorophenol has been biosorbed from aqueous solutions by non-living fungal pellets of Phanerochaete chrysosporium [34,35], and bacterial strains such as Achromobacter sp. and Escherichia coli [36].…”

Section: Introductionmentioning

confidence: 99%

Phenolic compounds biosorption onto Schizophyllum commune fungus: FTIR analysis, kinetics and adsorption isotherms modeling

Kumar

Kim

2011

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Phenolic compounds biosorption onto Schizophyllum commune fungus: FTIR analysis, kinetics and adsorption isotherms modeling

Kumar

Kim

2011

Chemical Engineering Journal

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“…The main characteristics of DOR determined by Sampedro et al (2007) were as follows: total organic carbon (TCO), 58.5%; total nitrogen (TN), 1.87%; total phosphorus, 0.21%; lignin, 24.7%; cellulose, 18%; hemicellulose, 11.4%; total phenols, 2.65%; total lipids, 0.2%; ashes, 9.2%. The most abundant elements, in g kg-I OOR were: K 30.5, Mg 3.8, Ca 13.6, Na 0.17, Fe 1.1, Cu 0.07, Zn 0.06, Mn 0.04.…”

Section: Methodsmentioning

confidence: 99%

The effects of the arbuscular mycorrhizal fungusGlomus deserticola on growth of tomato plants grown in the presence of olive mill residues modified by treatment with saprophytic fungi

et al. 2009

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Olive oil extraction generates large amounts of olive mill residues (DOR) which may be used as fertilizer. The influence of arbuscular mycorrhizal (AM) on the phytotoxicity of dry olive residue (DOR) transformed with saprophytic fungi was studied. Aqueous extraction of DOR gave an (ADOR) fraction and an exhausted (SDOR) fraction, both of which had less phytotoxicity for tomato than the original DOR. The saprophytic fungi Trametes versicolor and Pycnoporus cinnabarinus further decreased the phytotoxicity of ADOR and SDOR on tomato. The decrease of phenols concentration and the differences in the level of laccase activity caused by these fungi suggest did not account fully for the reduced phytoxicity but the fact that the higher hydrolytic enzyme activity of P. cinnabarinus, paralleled the decrease of phytotoxicity, indicates that these enzymes seem to be involved. The AM fungus Glomus deserticola increased or exacerbated the beneficial effect of SDUR incubated with saprophytic fungi, in terms of dry weight of tomato plants. The percentage of root length colonized by G. deserticola strongly decreased in presence ofDOR, but the level of mycorrhization was higher in presence of ADOR or SDOR. Our results suggest that the combination of aqueous extraction and incubation with saprophytic fungi will open the way for the use of olive oil extraction residues as organic amendment in agricultural soils.

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“…This dissimilar behavior is coherent with the different effect of ADOR bioremediated by the two fungi on root morphology and could be due to the diverse enzymatic systems utilized by C. rigida and P. chrysogenum-10 for ADOR degradation. Indeed, in C. rigida the oxidation of phenols by oxidative enzymes, such as ligninolityc enzymes, generates oxyradicals that can undergo to non-enzymatic coupling reactions with the formation of polymers that stabilize the reactivity of these molecules (Sampedro et al 2007b). On the other hand, filamentous fungi have different pathways of phenol conversion and produce secondary metabolites that could have pro-oxidative activity (Isebaert et al 2005;Iwasaki et al 2011).…”

Section: Changes In Redox Environment Caused By Ador Treatmentsmentioning

confidence: 99%

Bioremediation of dry olive-mill residue removes inhibition of growth induced by this waste in tomato plants

García‐Sánchez

Paradiso

García-Romera

et al. 2013

Int. J. Environ. Sci. Technol.

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The disposal of dry olive-mill residue, the waste product from olive oil production, is a serious environmental issue. Dry olive-mill residue, being rich in organic and inorganic nutrients, could be used as fertilizer; however, it contains phenolic compounds that can inhibit plant growth. In order to clarify whether bioremediation of this waste could be a valuable strategy for its reuse, the effect of aqueous extract of dry olive-mill residue, untreated or bioremediated by the saprobe fungi Coriolopsis rigida and Penicillium chrysogenum-10, has been analyzed in relation to some physiological parameters of tomato plants. The data show that aqueous dry olive-mill residue significantly reduces the biomass of roots and shoots. In particular, it causes a dramatic reduction in root length, area, and volume as well as in the number of root tips. At an early stage, aqueous dry olive-mill residue also reduces the content of chlorophyll a and b and the efficiency of PS II. The inhibition of growth seems to be due to the increase in phenolic compounds that induce oxidative stress. Interestingly, when plants are treated with aqueous dry olive-mill residue bioremediated by saprobe fungi a decrease in phenolic content and an alleviation of oxidative stress occur. In conclusion, the results show that bioremediation of aqueous dry olive-mill residue is a useful tool to remove most of the inhibiting effects of this waste on plant growth.

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Organic matter evolution and partial detoxification in two-phase olive mill waste colonized by white-rot fungi

Cited by 54 publications

References 31 publications

Phenolic compounds biosorption onto Schizophyllum commune fungus: FTIR analysis, kinetics and adsorption isotherms modeling

Phenolic compounds biosorption onto Schizophyllum commune fungus: FTIR analysis, kinetics and adsorption isotherms modeling

The effects of the arbuscular mycorrhizal fungusGlomus deserticola on growth of tomato plants grown in the presence of olive mill residues modified by treatment with saprophytic fungi

Bioremediation of dry olive-mill residue removes inhibition of growth induced by this waste in tomato plants

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