The evaluation of the potential ecotoxicity of pyroligneous acid obtained from fast pyrolysis

Lima, Gabriel Goetten de; Mendes, Camila; Marchi, Gustavo de; Vicari, Taynah; Cestari, Marta Margarete; Gomes, Monike Felipe; Ramsdorf, Wanessa Algarte; Magalhães, Washington Luiz Esteves; Hansel, F. A.; Leme, Daniela Morais

doi:10.1016/j.ecoenv.2019.05.058

Cited by 17 publications

(7 citation statements)

References 62 publications

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“…However, in a recent study, Goethen de Lima et al [69] found that wood vinegar may be toxic to Daphnia magna (microcrustacea), while no genotoxicity was detected for Allium cepae. Koc [26] reported that wood vinegar used at different doses to protect plants and/or crops in wheat agro-ecosystems did not have a negative effect on microbial factors determined in the soil.…”

Section: Spray Testmentioning

confidence: 95%

Composition, Ageing and Herbicidal Properties of Wood Vinegar Obtained through Fast Biomass Pyrolysis

et al. 2020

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Lignocellulosic biomass pyrolysis could be an economically feasible option for forest management as it reduces the need to burn litter and helps in fire prevention thus avoiding the release of carbon dioxide and other greenhouse gases into the atmosphere. This study characterises wood vinegar (WV) obtained via a continuous fast pyrolysis process in terms of its composition, ageing and herbicidal properties. The aqueous WV fraction had a moisture content of 84% in weight and contained more than 200 compounds. Acetic acid, hydroxyacetaldehyde and hydroxyacetone were the major components. No significant differences were found in WV composition according to the starting material (poplar, pine, pruning litter, forest waste). No residual aromatic polycyclic compounds that could be harmful to the environment were detected. In a series of climate-controlled glass chamber experiments, the WV proved to be as effective an inhibitor of seed germination and seedling growth as a contact herbicide acting against weeds, especially through aerial contact. Sprayed WV concentrations of 50, 75 and 100 vol. % were effective against all plant species tested. This product could therefore be of commercial interest and help make biomass pyrolysis economically viable, once environmental exposure limits and the safe application for agricultural and urban use of this product have been established.

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Section: Spray Testmentioning

confidence: 95%

Composition, Ageing and Herbicidal Properties of Wood Vinegar Obtained through Fast Biomass Pyrolysis

et al. 2020

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“…Thus, PA, which possesses low toxicity (Pimenta et al 2018) as assessed according to the maximum index of DNA-damaging polycyclic aromatic hydrocarbons (PAHs) and is composed of a class of compounds that is similar to that in herbal medicines, may provide a suitable alternative for use as an antiseptic or disinfectant in a wide variety of applications Lima et al 2019). The applicability and chemical properties of PAs in various research areas make it possible to study these compounds in animals, and, based on this, we examined the potential of PAs derived from Mimosa tenuiflora (Jurema preta) and Eucalyptus urograndis (Eucalipto) for use as postmilking (postdipping) antiseptics in dairy goats.…”

Section: Introductionmentioning

confidence: 99%

Pyroligneous acid from Mimosa tenuiflora and Eucalyptus urograndis as an antimicrobial in dairy goats

et al. 2021

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Aims: To evaluate the applicability of the Mimosa tenuiflora and Eucalyptus urograndis pyroligneous acids (PAs) as alternative antiseptics in dairy goats. Methods and Results: Cytotoxicity was evaluated in vitro using bacteria, as well as in vivo using goats, and the influence of PAs on the physicochemical parameters of fresh milk were examined. The cytotoxicity of PAs was evaluated in terms of morphology, cell viability and metabolic activity of goat tegumentary cells. The PA of M. tenuiflora had results similar to those of 2% iodine. For the in vitro tests, strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were used with the well technique, demonstrating inhibition halos greater than 9 mm. In the in vivo test, 15 animals were used per phase of the experiment, and the plate counting technique showed that there was antiseptic action of both extracts, with emphasis on the M. tenuiflora PA. Physicochemical analysis of the milk showed that neither PAs interfered with its physical-chemical parameters. Conclusions: The PA of M. tenuiflora presented potential as an alternative antiseptic in dairy goats. Significance and Impact of the Study: This study demonstrates the use of PA as an antimicrobial agent in animals.

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“…WV has also been used as a fertilizer in low concentrations. Some articles have found a somewhat negative effect on aquatic organisms, which, if confirmed, should lead to a series of regulations on its use in areas near streams or surface waters (de Lima et al., 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Herbicidal effects of wood vinegar on nitrophilous plant communities

Martínez

Baena

Martín

et al. 2020

Food and Energy Security

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The evaluation of the potential ecotoxicity of pyroligneous acid obtained from fast pyrolysis

Cited by 17 publications

References 62 publications

Composition, Ageing and Herbicidal Properties of Wood Vinegar Obtained through Fast Biomass Pyrolysis

Composition, Ageing and Herbicidal Properties of Wood Vinegar Obtained through Fast Biomass Pyrolysis

Pyroligneous acid from Mimosa tenuiflora and Eucalyptus urograndis as an antimicrobial in dairy goats

Herbicidal effects of wood vinegar on nitrophilous plant communities

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