Nutrient-efficient catfish-based aquaponics for producing lamb's lettuce at two light intensities.

Autor: Sebastião F; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal., Vaz DC; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal.; School of Health Sciences, Polytechnic of Leiria, Leiria, Portugal., Pires CL; Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal., Cruz PF; Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal., Moreno MJ; Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal., Brito RMM; Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal., Cotrim L; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal., Oliveira N; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal., Costa A; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal., Fonseca A; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal., Rodrigues M; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal., Ispolnov K; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal., Bernardino R; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; School of Tourism and Marine Technology, Polytechnic of Leiria, Peniche, Portugal., Vieira J; LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal.; ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal.; School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal.
Jazyk: angličtina
Zdroj: Journal of the science of food and agriculture [J Sci Food Agric] 2024 Aug 30; Vol. 104 (11), pp. 6541-6552. Date of Electronic Publication: 2024 Apr 05.
DOI: 10.1002/jsfa.13478
Abstrakt: Background: Aquaponic systems are sustainable processes of managing water and nutrients for food production. An innovate nutrient-efficient catfish-based (Clarias gariepinus) aquaponics system was implemented for producing two cultivars of two leafy vegetables largely consumed worldwide: lamb's lettuce (Valerianella locusta var. Favor and Valerianella locusta var. de Hollande) and arugula (Eruca vesicaria var. sativa and Eruca sativa). Different growing treatments (4 × 2 factorial design) were applied to plants of each cultivar, grown at two light intensities (120 and 400 μmol m -2  s -1 ). During growth, several morphological characteristics (root length, plant height, leaf number, foliage diameter and biggest leaf length) were measured. At harvest, plants were weighed and examined qualitatively in terms of greenness and health status. Additionally, leaf extracts were obtained and used to determine total phenolic contents, antioxidant capacities, and levels of cytotoxicity to Caco-2 intestinal model cells.
Results: After a 5-week growth period, both lamb's lettuce cultivars presented high levels of greenness and health status, at both light intensities, particularly the var. de Hollande that also showed higher average performance in terms of plant morphology. In turn, arugula cultivars showed lower levels of greenness and health status, especially the cultivar E. vesicaria var. sativa submitted to direct sunlight during growth. In addition, plant specimens submitted to higher levels of light intensity showed higher contents in antioxidants/polyphenols. Cultivars with a higher content in antioxidants/polyphenols led to higher Caco-2 cell viability.
Conclusion: For successful industrial implementation of the aquaponics technology, different and optimized acclimatizing conditions must be applied to different plant species and cultivars. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
(© 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.)
Databáze: MEDLINE
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