Sustainable water treatment in aquaculture - photolysis and photodynamic therapy for the inactivation of<i>Vibrio</i>species

Malara, Danilo; Mielke, Christina; Oelgemöller, Michael; Senge, Ma­thias O.; Heimann, Kirsten

doi:10.1111/are.13128

Cited by 16 publications

(10 citation statements)

References 56 publications

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“…Another hopeful treatment are the peptides produced by Bacillus subtilis which were proved with antimicrobial activity against both species, and in addition, had a protective effect against V. parahaemolyticus when they were incorporated into the diet of shrimps (Cheng et al 2017). Water treatment by using photolysis therapy was effective in controlling V. parahamolyticus (Malara et al 2017).…”

Section: Vibrio Alginolyticus and Vibrio Parahaemolyticusmentioning

confidence: 99%

Bacteria-Affecting Cephalopods

Farto

Fichi

Gestal

et al. 2019

Handbook of Pathogens and Diseases in Cephalopods

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Bacterial pathogens contribute to obtain an unsuccessful production of cephalopods. An updated overview of the knowledge of these pathogens must be a valuable tool to improve their aquarium maintenance and aquaculture. The present work provides a description of the main bacterial pathogens associated with larval stages of cultured Octopus vulgaris, and juvenile and adults of several cephalopods. Vibrio species, reported with ability to cause vibriosis in aquaculture, are the main bacteria associated with skin lesions in adults. Different species of Pseudomonas and Aeromonas, among others, have also been detected. Furthermore, gram-positive bacteria such as Bacillus have been also described. Among them, V. alginolyticus, V. carchariae, V. parahaemolyticus, V. splendidus and V. lentus have also been isolated from sterile organs or fluids of animals and their potential as invaders proved. However, only V. alginolyticus or V. lentus has the ability to cause lesions, and, in addition, the last one is proved as the causative agent of death in octopuses. Other organs such as eyes of squids are also colonized by Vibrio species or Micrococcus sp., and recently Photobacterium swingsii and Lactococcus garvieae have been reported associated with a retrobulbar lesion in octopus. Rickettsial-like organisms (RLO) are also detected in the gills of the octopus, having a detrimental effect on the respiratory gaseous exchange of the animals. Cultures of octopus paralarvae show a genetically diverse community comparable to those reported previously from other marine hatcheries. Bacteria included in the Splendidus clade is the dominant group in all conditions, except in one of them, where V. alginolyticus, V.

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Section: Vibrio Alginolyticus and Vibrio Parahaemolyticusmentioning

confidence: 99%

Bacteria-Affecting Cephalopods

Farto

Fichi

Gestal

et al. 2019

Handbook of Pathogens and Diseases in Cephalopods

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“…The process has also been applied to wastewater and improved water quality in the aquaculture system. Malara et al (2017) use photolysis to inactivate vibrio species (pathogens) in aquaculture.…”

Section: Biohydrogenmentioning

confidence: 99%

Sustainable production of biofuels and bioderivatives from aquaculture and marine waste

et al. 2023

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The annual global fish production reached a record 178 million tonnes in 2020, which continues to increase. Today, 49% of the total fish is harvested from aquaculture, which is forecasted to reach 60% of the total fish produced by 2030. Considering that the wastes of fishing industries represent up to 75% of the whole organisms, the fish industry is generating a large amount of waste which is being neglected in most parts of the world. This negligence can be traced to the ridicule of the value of this resource as well as the many difficulties related to its valorisation. In addition, the massive expansion of the aquaculture industry is generating significant environmental consequences, including chemical and biological pollution, disease outbreaks that increase the fish mortality rate, unsustainable feeds, competition for coastal space, and an increase in the macroalgal blooms due to anthropogenic stressors, leading to a negative socio-economic and environmental impact. The establishment of integrated multi-trophic aquaculture (IMTA) has received increasing attention due to the environmental benefits of using waste products and transforming them into valuable products. There is a need to integrate and implement new technologies able to valorise the waste generated from the fish and aquaculture industry making the aquaculture sector and the fish industry more sustainable through the development of a circular economy scheme. This review wants to provide an overview of several approaches to valorise marine waste (e.g., dead fish, algae waste from marine and aquaculture, fish waste), by their transformation into biofuels (biomethane, biohydrogen, biodiesel, green diesel, bioethanol, or biomethanol) and recovering biomolecules such as proteins (collagen, fish hydrolysate protein), polysaccharides (chitosan, chitin, carrageenan, ulvan, alginate, fucoidan, and laminarin) and biosurfactants.

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“…2 It has also been found to help eradicate bacterial and viral infections 3−5 and promote wound healing, 6 and it has applicability for environmental purposes, such as water purification. 7 A series of sequential photochemical reactions can explain the molecular mechanism behind PDT activity. The first is the excitation of Ps from its ground singlet state (S 0 ) to one of the possible higher electronic states (S n ) associated with the greater energy.…”

Section: Introductionmentioning

confidence: 99%

Tuning the Photophysical Properties of Ru(II) Photosensitizers for PDT by Protonation and Metallation: A DFT Study

Spiegel

Adamo

2023

J. Phys. Chem. A

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Due to their activity, photosensitizers with the Ru(II)–polypyridyl complex structure represent an intriguing class of photodynamic therapy agents used to treat neoplasms. However, their solubility is poor, intensifying experimental research into improving this property. One recently proposed solution is to attach a polyamine macrocycle ring. In this paper, the density functional theory (DFT) and time-dependent DFT (TD-DFT) studies on such derivative were performed to assess the impact of the protonation-capable macrocycle and its ability to chelate transition state metals, as illustrated by the Cu(II) ion, on the expected photophysical activity. These properties were determined by examining ultraviolet–visible (UV–vis) spectra, intersystem conversion, and type I and II photoreactions of all species possibly present in a tumor cell. For comparison purposes the structure devoid of the macrocycle was also examined. The results show that the subsequent protonation of amine groups improves the reactivity, with [H2L]4+/[H3L]5+ being borderline, whereas complexation appears to weaken the desired photoactivity.

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Sustainable water treatment in aquaculture - photolysis and photodynamic therapy for the inactivation ofVibriospecies

Cited by 16 publications

References 56 publications

Bacteria-Affecting Cephalopods

Bacteria-Affecting Cephalopods

Sustainable production of biofuels and bioderivatives from aquaculture and marine waste

Tuning the Photophysical Properties of Ru(II) Photosensitizers for PDT by Protonation and Metallation: A DFT Study

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