6 results on '"Geysiane Moreira Gerotti"'
Search Results
2. Classification of dairy properties according to the geometric mean of the somatic cell count and its antimicrobial resistance profile
- Author
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Mauricio Fanin, Isabela Carvalho dos Santos, Geysiane Moreira Gerotti, Camila de Cuffa Matusaiki, Daniela Dib Gonçalves, Benito Guimarães de Brito, Kelly Cristina Tagliari de Brito, Jessika Fernanda Boeira, and Luciana Kazue Otutumi
- Subjects
Milk quality ,Staphylococcus spp. ,Enterobacteria ,SCC ,SPC. ,Agriculture (General) ,S1-972 - Abstract
Milk and its derivatives are highly consumed foods worldwide, with recognized nutritional importance. The search for the production of products with superior quality is constant. For the present work, 26 milk-producing properties were selected, with a total of 506 milk samples collected during the period from October 2019 to May 2020 being evaluated. The objective of this study was to evaluate the quality of milk produced in dairy properties in the region west Paraná, classified as good or bad based on the results of the Somatic Cell Count (SCC) and through sampling (n = 10) to evaluate the resistance profile of enterobacteria and Staphylococcus spp. isolated from milk samples, in addition to the presence of the mecA gene in strains of Staphylococcus spp. resistant to oxacillin. There were significant differences between the good and bad properties for the levels of lactose, SCC (cell/mL), and Standard Plate Count (SPC) (CFU/mL). The strains of Staphylococcus spp. showed differences in the percentage of resistance in relation to the good and bad properties for antibiotics: tetracycline, ciprofloxacin, oxacillin, amikacin, clindamycin, gentamycin, and erythromycin. The mecA gene was not detected in any of the coagulase-negative Staphylococcus isolates that showed resistance to oxacillin. For enterobacteria, the isolated species differed in relation to the classification of properties, with predominance for Escherichia coli (40%) for properties classified as bad and Hafnia alvei (40%) for those classified as good. The percentage of antibiotic resistance compared to enterobacteria isolates was higher in properties classified as good. Monitoring through microbial culture and antibiogram is extremely important, favoring the correct choice for the treatment of animals with a reduced selection of resistant strains.
- Published
- 2022
- Full Text
- View/download PDF
3. Methyl jasmonate and copper activate volatiles and antioxidant mechanisms in 'Grecco a Palla' basil produced in vitro
- Author
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Felipe Górski, Geysiane Moreira Gerotti, José Eduardo Gonçalves, Zilda Cristiani Gazim, and Hélida Mara Magalhães
- Subjects
Plant Science ,Agronomy and Crop Science ,Biotechnology - Published
- 2023
- Full Text
- View/download PDF
4. Relationship between auxins and cytokinins in the growth and organogenesis of Ocimum basilicum L. ‘Grecco a Palla’
- Author
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Felipe Górski, Hélida Mara Magalhães, and Geysiane Moreira Gerotti
- Subjects
Family Lamiaceae ,chemistry.chemical_classification ,food.ingredient ,biology ,fungi ,Basilicum ,food and beverages ,Organogenesis ,Plant Science ,Horticulture ,Ocimum ,biology.organism_classification ,food ,chemistry ,Auxin ,Botany ,Agronomy and Crop Science - Abstract
The in vitro development of a plant is controlled by factors that promote a series of plant responses, which interfere with tissue organogenesis and morphology. For plants of the family Lamiaceae, these factors remain unknown or poorly understood, hindering in vitro cultivation of these plants. The basil cultivar ‘Grecco a palla’ has attractive chemical properties for medicinal, pharmaceutical, and cosmetic industries; however, its production is limited due to the lack of appropriate cultivation conditions. Two types of explants of this species (nodal segments and stem apexes) were grown in culture media with auxin and cytokinin, and their development was followed for 60 days. During in vitro cultivation, both explants were subjected to higher concentrations of plant growth regulators (PGRs) produced only calluses, without induction of shoots. Small amounts of regulators favored hyperhydricity as nodal segments or stem apexes in the absence of PGRs produced plants with disturbances, including brittle, light green, and thick leaves. In this case, there was an increase in the cell layers of palisade parenchyma, which had large cell spaces and larger cells. This tissue also advanced to spongy parenchyma and compressed it. The stomatal density was low; however, the stomata were larger with additions mainly in the guard cells and the stomatic opening. Therefore, stem apexes in the absence of PGRs produced more vigorous plants, whereas nodal segments with low amounts of cytokinins and auxins developed a well-branched and abundant root system.
- Published
- 2021
- Full Text
- View/download PDF
5. Controle de Salmonella spp. em frangos de corte – revisão de literatura / Control of Salmonella spp. in broilers - literature review
- Author
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Ana Maria Candido Ferreira, Geysiane Moreira Gerotti, Rafaela Galves Ferreira, Camila de Cuffa Matusaiki, Giovana Dantas Grossi, Izabela Camilotti Dorneles, Taniara Suelen Mezalira, and Luciana Kazue Otutumi
- Subjects
Prebiótico ,General Materials Science ,Probiótico ,Salmonelose ,ácidos orgânicos - Abstract
A Salmonelose é uma doença de grande impacto na saúde única, ou seja, saúde humana, animal e ambiental. Por ser uma zoonose, é necessário controlar a sua disseminação devido a sua associação aos casos de Doenças transmitidas por Alimentos (DTA’s). O Brasil é o maior exportador da carne de frango no mundo, sendo assim, a identificação da presença de carne contaminada com Salmonella spp. pode trazer grande prejuízos à agroindústria. Sendo assim, o objetivo deste trabalho foi realizar um levantamento de artigos publicados na base de dados da Scielo relacionados ao controle de Salmonella spp. em frangos de corte. Como estratégia de pesquisa dos dados, utilizou-se a seguinte frase no item palavras-chave: Controle de Salmonella em frangos de corte. No total, 14 artigos oriundos do Brasil foram encontrados. No entanto, apenas 12 artigos foram analisados, visto que dois artigos não abordavam tratamentos contra a Salmonela spp. Verificaram-se resultados positivos para o controle de Salmonella spp. com probióticos, ácidos orgânicos, flagelina recombinante, óleos essenciais e prebióticos, no entanto, variações nos resultados podem estar relacionados com o produto utilizado, tempo de tratamento e cepa bacteriana utilizada no desafio.
- Published
- 2022
6. Classificação de propriedades leiteiras de acordo com a média geométrica da contagem de células somáticas e seu perfil de resistência aos antimicrobianos
- Author
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Kelly Cristina Tagliari de Brito, Jessika Fernanda Boeira, Daniela Dib Gonçalves, Geysiane Moreira Gerotti, Camila de Cuffa Matusaiki, Mauricio Fanin, Isabela Carvalho dos Santos, Luciana Kazue Otutumi, and Benito Guimarães de Brito
- Subjects
Veterinary medicine ,Enterobacteria ,CPP ,SPC ,Qualidade do leite ,Staphylococcus spp ,biochemical phenomena, metabolism, and nutrition ,Biology ,SCC ,CCS ,Enterobactérias ,Antibiotic resistance ,Milk quality ,Geometric mean ,General Agricultural and Biological Sciences ,Somatic cell count - Abstract
Milk and its derivatives are highly consumed foods worldwide, with recognized nutritional importance. The search for the production of products with superior quality is constant. For the present work, 26 milk-producing properties were selected, with a total of 506 milk samples collected during the period from October 2019 to May 2020 being evaluated. The objective of this study was to evaluate the quality of milk produced in dairy properties in the region west Paraná, classified as good or bad based on the results of the Somatic Cell Count (SCC) and through sampling (n = 10) to evaluate the resistance profile of enterobacteria and Staphylococcus spp. isolated from milk samples, in addition to the presence of the mecA gene in strains of Staphylococcus spp. resistant to oxacillin. There were significant differences between the good and bad properties for the levels of lactose, SCC (cell/mL), and Standard Plate Count (SPC) (CFU/mL). The strains of Staphylococcus spp. showed differences in the percentage of resistance in relation to the good and bad properties for antibiotics: tetracycline, ciprofloxacin, oxacillin, amikacin, clindamycin, gentamycin, and erythromycin. The mecA gene was not detected in any of the coagulase-negative Staphylococcus isolates that showed resistance to oxacillin. For enterobacteria, the isolated species differed in relation to the classification of properties, with predominance for Escherichia coli (40%) for properties classified as bad and Hafnia alvei (40%) for those classified as good. The percentage of antibiotic resistance compared to enterobacteria isolates was higher in properties classified as good. Monitoring through microbial culture and antibiogram is extremely important, favoring the correct choice for the treatment of animals with a reduced selection of resistant strains. O leite e seus derivados são alimentos altamente consumidos em todo mundo, com importância nutricional reconhecida. A busca pela produção de produtos com qualidade superior é constante. Para o presente trabalho foram selecionadas 26 propriedades produtoras de leite, sendo avaliado um total de 506 amostras de leite colhidas durante o período de outubro de 2019 a maio de 2020. O objetivo deste estudo foi avaliar a qualidade do leite produzido em propriedades leiteiras da região oeste do Paraná, classificadas como boas ou ruins com base nos resultados da Contagem de Células Somáticas (CCS) e por meio de amostragem (n=10) avaliar o perfil de resistência das enterobactérias e Staphylococcus spp. isolados das amostras de leite, além da presença do gene mecA em cepas de Staphylococcus spp. resistentes à oxacilina. Houve diferenças significativas entre as propriedades boas e ruins para os teores de lactose, CCS (cél./mL) e Contagem Padrão em Placas (CPP) (UFC/mL). As cepas de Staphylococcus spp. apresentaram diferenças no percentual de resistência em relação às propriedades boas e ruins para os antibióticos: tetraciclina, ciprofloxacina, oxacilina, amicacina, clindamicina, gentamicina e eritromicina. Não foi detectada a presença do gene mecA em nenhum dos isolados de Staphylococcus coagulase negativa que apresentaram perfil de resistência à oxacilina. Para as enterobactérias as espécies isoladas diferiram em relação à classificação das propriedades, com predomínio para Escherichia coli (40%) para as propriedades classificadas como ruins e Hafnia alvei (40%) para as classificadas como boas. O percentual de resistência aos antibióticos frente aos isolados de enterobactérias foi maior nas propriedades classificadas como boas. É extremamente importante o monitoramento por meio de cultura microbiana e antibiograma, favorecendo a correta escolha para o tratamento dos animais com redução da seleção de cepas resistentes.
- Published
- 2022
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