The influence of phenols extracted from olive mill wastewater on the heterotrophic and mixotrophic growth of <i>Scenedesmus</i> sp.

Caprio, Fabrizio Di; Scarponi, Paolina; Altimari, Pietro; Iaquaniello, Gaetano; Pagnanelli, Francesca

doi:10.1002/jctb.5743

Cited by 29 publications

(17 citation statements)

References 40 publications

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“…Little data is available in the literature on OMW in uence on photosynthetic pigments synthesized by Scenedesmus sp. These results were in line with those of Di Caprio et al [32], who investigated the in uence of phenols extracted from OMW using a resine, on total chlorophyll and total carotenoids produced by Scenedesmus sp. In this last study, the mixotrophic and photoautrophic culture conditions allow better cell concentration and higher chlorophyll and carotenoid contents compared to the heterotrophic mode, which may mainly attributed to the penetration of light.…”

Section: Effects Of Omw and Omuf Stress On Photosynthetic Pigmentssupporting

confidence: 92%

Effect of Olive Mill Wastewaters on Scenedesmus Sp. Growth, Metabolism and Phenols Removal

Moussa¹,

Masmoudi

Feki

et al. 2020

Preprint

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Background The industry of olive oil produces large wastewater quantities. The elimination of these toxic by-products is an important environmental issue that requires a sufficient solution. In this study, Scenedesmus sp. was used for the simultaneous lipid and antioxidant molecules production and olive mill wastewater biodegradation.Results The two-stage olive mill wastewater cultivation did not significantly inhibit the production of microalgal biomass, compared to a single growth stage, when OMW and OMUF were supplied at the beginning of cultivation. OMUF, at 40%, enhanced the Ch a, b and carotenoids amounts (2.57, 7.4 and 1.69 mg/g dw, respectively), and protein and carbohydrate accumulation (350.96 and 315.62 ng/cell, respectively), after single phase culture. However, the highest OMUF and OMW concentrations increased total lipid content to 639. 13 and 679.86 ng/cell, respectively. About 58% of phenol removal was achieved and highest accumulation of polyphenols in algal cells with 40% OMUF condition under one stage strategy. The highest OMUF and OMW concentrations exhibited highest DPPH and ABTS scavenging ability after single and two-phase culture. Moreover, the cytotoxicity of the OMUF against HEK- 293 human embryonic kidney cells was evaluated by MTT assay. The MTT assay showed that the biomass of Scenedesmus sp. cultured on Tunisian filtered olive mill waste water did not shown any toxic effect.Conclusion Our results indicate that Scenedesmus sp. is a promising microalga for the biotreatment of OMW and the production of bioactive metabolites.

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Section: Effects Of Omw and Omuf Stress On Photosynthetic Pigmentssupporting

confidence: 92%

Effect of Olive Mill Wastewaters on Scenedesmus Sp. Growth, Metabolism and Phenols Removal

Moussa¹,

Masmoudi

Feki

et al. 2020

Preprint

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“…Temperature was controlled at 20 ± 1 °C. Every experimental condition was evenly tested in autotrophic, mixotrophic (1 gl -1 glucose) and heterotrophic (1 gl -1 glucose) controls for both strains, as reported in Di Caprio's study (Di Caprio et al, 2018). Glucose was added as an easily assimilable substrate at 1 gl -1 (by weight) in the control condition because this concentration can be used to assess whether a microalgae growth inhibition correlated to microalgae capacity to use glucose in their mixotrophic and heterotrophic metabolic condition (Pentose Phosphate Pathway and Embden-Meyerhof Pathway respectively) exists (Yeh et al, 2012).…”

Section: Anaerobic Digestate Characterizationmentioning

confidence: 99%

Evaluation of Chlorella vulgaris and Scenedesmus obliquus growth on pretreated organic solid waste digestate

et al. 2021

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In this research Scenedesmus obliquus and Chlorella vulgaris growth was tested on digestate sludge obtained from the anaerobic co-digestion treatment of the organic fraction of municipal solid waste (OFMSW) together with waste activated sludge (WAS). Digestate was diluted 1:10 and tested in three batch experimental conditions: with no pre-treatments (noPT), after centrifugation (AC) and after filtration (AUF), in order to evaluate microalgae limiting growth factors. The best growth was obtained by C. vulgaris on digestate AC compared to S. obliquus, reaching 479 ± 31 cell million ml -1 and 131 ± 12 cell million ml -1 respectively. Ammonia removal evaluated in C. vulgaris and S. obliquus cultures was 99.2% ± 0.3 and 98.146% ± 0.008 in AC condition, respectively. Considering that AUF showed similar microalgae growth values, the digestate pretreatment for microalgae growth, could be limited to centrifugation.

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“…galbana . Di Caprio et al (2018) drew a similar result that phenols concentration higher than 100 mg/L have an inhibition eff ect on Scenedesmus sp.…”

Section: Discussionmentioning

confidence: 83%

Removal of phenol by Isochrysis galbana in seawater under varying temperature and light intensity

Li¹,

Meng

Wang³

et al. 2019

J. Ocean. Limnol.

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Phenol is a common industrial chemical produced and transported worldwide largely. Therefore, accidental spillage of phenol in the ocean causes an increasing concern. Microalgae are promising to remove phenol from marine waters. However, temperature and light intensity are two main factors that markedly infl uence biodegradation in marine environments. In this study, a marine golden alga Isochrysis galbana is selected to research the removal of phenol under diff erent temperatures (10-30°C) and light intensities (0-240 μmol/(m 2 •s)). The results show that the most suitable temperature and light intensity for phenol removal are 20°C and 180 μmol/(m 2 •s), respectively, and 100 mg/L of phenol can be completely removed by microalga in 24 h at these conditions. I. galbana can also remove phenol under dark and low-temperature conditions. The removal of phenol by I. galbana at diverse temperatures and light intensities conform to fi rst-order kinetics, and the process under dark conditions conform to zero-order kinetics. Thus, I. galbana can be used in the in-situ bioremediation of polluted seawater by phenol.

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The influence of phenols extracted from olive mill wastewater on the heterotrophic and mixotrophic growth of Scenedesmus sp.

Cited by 29 publications

References 40 publications

Effect of Olive Mill Wastewaters on Scenedesmus Sp. Growth, Metabolism and Phenols Removal

Effect of Olive Mill Wastewaters on Scenedesmus Sp. Growth, Metabolism and Phenols Removal

Evaluation of Chlorella vulgaris and Scenedesmus obliquus growth on pretreated organic solid waste digestate

Removal of phenol by Isochrysis galbana in seawater under varying temperature and light intensity

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