Bioactivity of Olive Oil Mill Wastewater Against Plant Pathogens and Post-Harvest Diseases

Vagelas, Ioannis; Kalorizou, H.; Papachatzis, A.; Botu, M.

doi:10.1080/13102818.2009.10817641

Cited by 25 publications

(20 citation statements)

References 13 publications

(8 reference statements)

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“…Vagelas et al also tested the antimicrobial activity of OMWW on fruits by inoculating Penicillium (P. italicum and P. digitatum) and Botrytis cineria respectively on oranges and red horn (sweet) pepper; fungi were previously isolated from the same matrices. 44 OMWW reduced the number of Penicillium species and B. cineria (P < 0.001) spores. We tested P. italicum (Is18) and P. expansum (Is19), both isolated from soil, and found a mean Δ of 2-4 days, thus suggesting a partial inhibition.…”

Section: Discussionmentioning

confidence: 92%

“…Another key element was the species/strain effect and our result partially confirmed literature findings. A key research on the antifungal effect of OMWW was the paper by Vagelas et al They studied the antifungal effect of OMWWs against some soil‐borne plant pathogens ( Fusarium oxysporum f.sp . lycopersici , Pythium spp., Sclerotinia sclerotiorum and Verticillium dahliae ) through in vitro tests and OMWW inhibited the growth of all the tested fungi.…”

Section: Discussionmentioning

confidence: 99%

“…This difference could be due to two different reasons: (1) the variability amongst OMWW; and (2) the different isolation source, because our strain was isolated form Olea europea and this different source could result in a natural strong adapation of fungus to phenols. Vagelas et al also tested the antimicrobial activity of OMWW on fruits by inoculating Penicillium ( P. italicum and P. digitatum ) and Botrytis cineria respectively on oranges and red horn (sweet) pepper; fungi were previously isolated from the same matrices . OMWW reduced the number of Penicillium species and B. cineria ( P < 0.001) spores.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Fungal bioremediation of olive mill wastewater: using a multi-step approach to model inhibition or stimulation

Bevilacqua

Cibelli

Raimondo

et al. 2016

J. Sci. Food Agric.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Fungal bioremediation of olive mill wastewater: using a multi-step approach to model inhibition or stimulation

Bevilacqua

Cibelli

Raimondo

et al. 2016

J. Sci. Food Agric.

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“…and suppress the phytopathogenic effects of Fusarium oxysporum f.sp. lycopersici on tomato plants [132]. OMW can also inhibit the growth of the seed-borne pathogens of tomato plants, Clavibacter michiganensis subsp.…”

Section: Features Of Biotechnological Importance In Olive Mill Wasmentioning

confidence: 99%

The Microbiology of Olive Mill Wastes

Ntougias

Bourtzis

Tsiamis

2013

BioMed Research International

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Olive mill wastes (OMWs) are high-strength organic effluents, which upon disposal can degrade soil and water quality, negatively affecting aquatic and terrestrial ecosystems. The main purpose of this review paper is to provide an up-to-date knowledge concerning the microbial communities identified over the past 20 years in olive mill wastes using both culture-dependent and independent approaches. A database survey of 16S rRNA gene sequences (585 records in total) obtained from olive mill waste environments revealed the dominance of members of Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Firmicutes, and Actinobacteria. Independent studies confirmed that OMW microbial communities' structure is cultivar dependant. On the other hand, the detection of fecal bacteria and other potential human pathogens in OMWs is of major concern and deserves further examination. Despite the fact that the degradation and detoxification of the olive mill wastes have been mostly investigated through the application of known bacterial and fungal species originated from other environmental sources, the biotechnological potential of indigenous microbiota should be further exploited in respect to olive mill waste bioremediation and inactivation of plant and human pathogens. The implementation of omic and metagenomic approaches will further elucidate disposal issues of olive mill wastes.

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“…The OMW itself is phytotoxic; however it possesses antimicrobial activity due to the phenolic compounds present in the waste [9, 10]. A number of studies have shown that these compounds are effective as antibacterial, antiviral, and antifungal compounds [11–14]. Research into finding new uses for by-products of olive oil production is of great interest not only to the economy but also to the environment, particularly in areas where olives are grown and OMW is wasted [1, 15].…”

Section: Introductionmentioning

confidence: 99%

Synergistic Antibacterial Effects of Polyphenolic Compounds from Olive Mill Wastewater

Tafesh

Najami

Jadoun

et al. 2011

Evidence-Based Complementary and Alternative Medicine

103

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Polyphenols or phenolic compounds are groups of secondary metabolites widely distributed in plants and found in olive mill wastewater (OMW). Phenolic compounds as well as OMW extracts were evaluated in vitro for their antimicrobial activity against Gram-positive (Streptococcus pyogenes and Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli and Klebsiella pneumoniae). Most of the tested phenols were not effective against the four bacterial strains when tested as single compounds at concentrations of up to 1000 μg mL−1. Hydroxytyrosol at 400 μg mL−1 caused complete growth inhibition of the four strains. Gallic acid was effective at 200, and 400 μg mL−1 against S. aureus, and S. pyogenes, respectively, but not against the gram negative bacteria. An OMW fraction called AntiSolvent was obtained after the addition of ethanol to the crude OMW. HPLC analysis of AntiSolvent fraction revealed that this fraction contains mainly hydroxytyrosol (10.3%), verbascoside (7.4%), and tyrosol (2.6%). The combinations of AntiSolvent/gallic acid were tested using the low minimal inhibitory concentrations which revealed that 50/100–100/100 μg mL−1 caused complete growth inhibition of the four strains. These results suggest that OMW specific fractions augmented with natural phenolic ingredients may be utilized as a source of bioactive compounds to control pathogenic bacteria.

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Bioactivity of Olive Oil Mill Wastewater Against Plant Pathogens and Post-Harvest Diseases

Cited by 25 publications

References 13 publications

Fungal bioremediation of olive mill wastewater: using a multi-step approach to model inhibition or stimulation

Fungal bioremediation of olive mill wastewater: using a multi-step approach to model inhibition or stimulation

The Microbiology of Olive Mill Wastes

Synergistic Antibacterial Effects of Polyphenolic Compounds from Olive Mill Wastewater

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