Search results for " Raphanus sativus L."

showing 3 items of 3 documents

Microbiological investigation of Raphanus sativus L. grown hydroponically in nutrient solutions contaminated with spoilage and pathogenic bacteria

2012

Abstract The survival of eight undesired (spoilage/pathogenic) food related bacteria (Citrobacter freundii PSS60, Enterobacter spp. PSS11, Escherichia coli PSS2, Klebsiella oxytoca PSS82, Serratia grimesii PSS72, Pseudomonas putida PSS21, Stenotrophomonas maltophilia PSS52 and Listeria monocytogenes ATCC 19114T) was investigated in mineral nutrient solution (MNS) during the crop cycle of radishes (Raphanus sativus L.) cultivated in hydroponics in a greenhouse. MNSs were microbiologically analyzed weekly by plate count. The evolution of the pure cultures was also evaluated in sterile MNS in test tubes. The inoculated trials contained an initial total mesophilic count (TMC) ranging between 6.…

Hygienic safety; Microbial transfer; Mineral nutrient solution; Raphanus sativus L.; Soilless cultivation; Undesired bacteriaFood spoilageSettore AGR/04 - Orticoltura E FloricolturaBacterial Physiological Phenomenamedicine.disease_causeMicrobiologySoilless cultivationRaphanusMicrobiologyHydroponicsmedicineMicrobial transferMicrobial ViabilityBacteriabiologyUndesired bacteriaPathogenic bacteriaKlebsiella oxytocaGeneral MedicineEnterobacterMineral nutrient solutionbiology.organism_classificationBacterial LoadPseudomonas putidaRandom Amplified Polymorphic DNA TechniqueCitrobacter freundiiRaphanus sativus L.Food MicrobiologyHygienic safetyTemperature gradient gel electrophoresisBacteriaSettore AGR/16 - Microbiologia AgrariaFood ScienceInternational Journal of Food Microbiology
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Ecotoxicity of halloysite nanotube–supported palladium nanoparticles in Raphanus sativus L

2015

Halloysite nanotubes (HNTs) are natural nanomaterials that are biocompatible and available in large amounts at low prices. They are emerging nanomaterials with appealing properties for applications like support for metal nanoparticles (NPs). The potential environmental impacts of NPs can be understood in terms of phytotoxicity. Current research has been focusing on HNT applications in cell or animal models, while their use in plants is limited so their ecotoxicological impact is poorly documented. To date there are no studies on the phytotoxic effects of functionalized halloysites (functionalized-HNTs). To develop a quantitative risk assessment model for predicting the potential impact of H…

NanotubesPalladium nanoparticles Halloysite nanotubes Seed germination Cytological analysis Raphanus sativus L.Halloysite nanotubesRaphanus sativus LHalloysite nanotubeMetal Nanoparticlesseed germinationGerminationSettore CHIM/06 - Chimica OrganicaPalladium nanoparticlePalladium nanoparticlesRisk AssessmentRaphanus Sativus L.RaphanusSettore BIO/01 - Botanica GeneraleCytological analysisCytological analysiSeedsAnimalsClayAluminum SilicatesPalladiumSettore CHIM/02 - Chimica Fisica
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Hygienic characteristics of radishes grown in soil contaminated with Stenotrophomonas maltophilia

2015

Background: Stenotrophomonas maltophilia is a plant growth-promoter. This bacterium is also implicated in human diseases. Thus, after the use of this bacterium in agriculture, the safety of the final products has to be verified. Due to the ubiquitous presence of S. maltophilia in soil, in this study a massive contamination was simulated to evaluate the growth and safety of Raphanus sativus L.. Results: Different inoculums and soil treatment conditions were tested. Soils were analysed weekly and the radishes at harvest for their microbial loads and presence/persistence of S. maltophilia LMG 6606. The concentration of the bacterium added in the different trials decreased during the first week…

Plant growthbiologyRaphanusfood and beveragesSettore AGR/04 - Orticoltura E FloricolturaContaminationbiology.organism_classificationBiochemistryPersistence (computer science)MicrobiologyStenotrophomonas maltophiliaHorticultureHygienic safety Microbial internalization Plant growth Raphanus sativus L. Stenotrophomonas maltophiliaSoil waterSoil treatmentAgronomy and Crop ScienceBacteriaFood ScienceBiotechnologySettore AGR/16 - Microbiologia AgrariaChemical and Biological Technologies in Agriculture
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