Controlled Environment Food Production for Urban Agriculture

Gómez, Celina; Currey, Christopher J.; Dickson, Ryan W.; Kim, Hye-Ji; Hernández, Ricardo; Sabeh, Nadia; Raudales, Rosa E.; Brumfield, Robin G.; Laury-Shaw, Angela; Wilke, Adam K.; López, Roberto G.; Burnett, Stephanie E.

doi:10.21273/hortsci14073-19

Cited by 86 publications

(100 citation statements)

References 140 publications

(163 reference statements)

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“…In a study to determine the source of contamination in hydroponic tomato greenhouses, work and personal shoes were identified as a vehicle for transmission of E. coli O157:H7 [65]. In this study, there is the possibility that the bacteria may have been introduced from the aquaponic system to the hydroponic systems from visitors to the greenhouse, during the feeding of fish, during sample collection, and/or by cross-contamination from other human activities [15,66]. Contrary to our results, very low levels of generic E. coli and undetectable pathogenic E. coli O157:H7 and Salmonella spp.…”

Section: Water Conditions For Aquaponic and Hydroponic Systemsmentioning

confidence: 99%

The Occurrence of Shiga Toxin-Producing E. coli in Aquaponic and Hydroponic Systems

2020

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Food safety concerns have been raised over vegetables and herbs grown in aquaponics and hydroponics due to the reuse of wastewater and spent nutrient solutions. This study was conducted to determine the occurrence of foodborne pathogens in greenhouse-based aquaponic and hydroponic systems. Fish feces, recirculating water, roots, and the edible portions of lettuce, basil, and tomato were collected at harvest, and microbiological analyses were conducted for the bacterial pathogens Shiga toxin-producing Escherichia coli (STEC), Listeria monocytogenes, and Salmonella spp. Enrichments and selective media were used for the isolation, and presumptive positive colonies were confirmed by PCR. STEC was found in fish feces, in the water of both systems, and on the surface of the roots of lettuce, basil, and tomato regardless of the system. However, contaminated water did not lead to the internalization of STEC into the roots, leaves, and/or fruit of the plants. Meanwhile, L. monocytogenes and Salmonella spp. were not present in any samples examined. Our results demonstrated that there are potential food safety hazards for fresh produce grown in aquaponic and hydroponic production systems.

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Section: Water Conditions For Aquaponic and Hydroponic Systemsmentioning

confidence: 99%

The Occurrence of Shiga Toxin-Producing E. coli in Aquaponic and Hydroponic Systems

2020

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“…This mutual relation is identified e.g. by Thomas (2019) who described the impacts of food regulation on the business operational cost side or Gómez et al (2019) who was pointing out changes in agri-food business and respective financial consequences.…”

Section: Introductionmentioning

confidence: 99%

Breaking food safety and quality standards in the EU: Financial aspects within poultry products manufacturers in Visegrad 4 countries

Komínková¹,

Vavřina²,

Polák³

2020

Journal of International Studies

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Under changing consumer preferences towards the need to increase qualitative side of food consumption,the level of meeting EU food safety and quality standards can be discussed as a specific factor of competitiveness for food manufacturers. The EU member countries use an information exchange instrument named Rapid Alert System for Food and Feed (RASSF) for sharing information with both public authorities and consumers. An increasing number of food safety and quality problems was observed in the year 2019 regarding the industry branch EU NACE 1012-poultry meat and poultry meat products in CEEC countries. This paper aims at the identification of common factors in the financial performance of businesses active in the industry mentioned above within Visegrad 4 member countries focusing on a specific distinctive period between 2009 and 2017. The authors employ factorial analysis of variance approach together with a post hoc Scheffé test for revealing similarities/dissimilarities within the selected key financial performance indicators for the sample of poultry meat and poultry meat products manufacturers. Namely, factors to be researched are country of business entities´ settlement, economic size and time proxy variable element of the

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“…The use of supplemental artificial lighting is thus necessary in northern regions, especially in winter when shorter photoperiods and lower light intensities severely impact productivity (18). Moreover, with the continuous growth of the world population, artificial lighting is increasingly needed to support the growing demand for local food production in the emerging indoor urban farming infrastructures (19). During the last two decades, the improvement in the efficiency of lightemitting diodes (LEDs) has been the main driver in the development of these plant factories (20,21).…”

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confidence: 99%

LED light gradient as a screening tool for light quality responses in model plant species

Lejeune

Fratamico

Bouché

et al. 2020

Preprint

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Current developments in light-emitting diodes (LEDs) technologies have opened new perspectives for sustainable and highly efficient indoor cultivation. The introduction of LEDs not only allows a reduction in the production costs on a quantitative level, it also offers opportunities to manipulate and optimise qualitative traits. Indeed, while plants respond strongest to red and blue lights for photosynthesis, the whole light spectrum has an effect on plant shape, development, and chemical composition. In order to evaluate LEDs as an alternative to traditional lighting sources, the species-specific plant responses to distinct wavelengths need to be evaluated under controlled conditions. Here, we tested the possibility to use light composition gradients in combination with semi-automated phenotyping to rapidly explore the phenotypic responses of different species to variations in the light spectrum provided by LED sources. Plants of seven different species (Arabidopsis thaliana, Ocimum basilicum, Solanum lycopersicum, Brachypodium distachyon, Oryza sativa, Euphorbia peplus, Setaria viridis) were grown under standard white fluorescent light for 30 days, then transferred to a Red:Blue gradient for another 30 days and finally returned to white light. In all species, differences in terms of dimension, shape, and color were rapidly observed across the gradient and the overall response was widely species-dependent. The experiment yielded large amounts of imaging-based phenotypic data and we suggest simple data analysis methods to aggregate the results and facilitate comparisons between species. Similar experimental setups will help achieve rapid environmental optimization, screen new crop species and genotypes, or develop new gene discovery strategies.

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Controlled Environment Food Production for Urban Agriculture

Cited by 86 publications

References 140 publications

The Occurrence of Shiga Toxin-Producing E. coli in Aquaponic and Hydroponic Systems

The Occurrence of Shiga Toxin-Producing E. coli in Aquaponic and Hydroponic Systems

Breaking food safety and quality standards in the EU: Financial aspects within poultry products manufacturers in Visegrad 4 countries

LED light gradient as a screening tool for light quality responses in model plant species

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