Consulta: creatorFacets:"Portella,Augustus Caeser Franke"
Registros recuperados: 3
Data/hora: 09/06/2024 05:55:00

Modelling antagonic effect of lactic acid eacteria supernatants on some pathogenic bacteria
Provedor de dados: 52
Autores: Portella,Augustus Caeser Franke; Karp,Susan; Scheidt,Gessiel Newton; Woiciechwski,Adenise Lorenci; Parada,Jose Luis; Soccol,Carlos Ricardo.
This work presents a statistical model of survival analysis for three pathogenic bacterial strains (Escherichia coli, Listeria monocytogenes and Staphylococcus aureus), when treated with neutralized and non-neutralized filtered supernatants broth from cultures of Lactobacillus acidhophilus, Lactobacillus rhamnosus and Lactobacillus sake. Survival analysis is a method employed to determine the period of time from an initial stage up to the occurrence of a particular event of interest, as death or a particular culture growth failure. In order to evaluate the potential efficacy of the ahead mentioned lactic acid bacteria when used as bioprotective starters in foods, experimental data were statistically treated and expressed by simple representative curves....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Statistical model; Survival analysis; Bioprotection.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700004

Serological Identification of Virus in Watermelon Production Fields in the Tocantins State
Provedor de dados: 52
Autores: Aguiar,Raimundo Wagner de Souza; Rodrigues,Adelmo; Portella,Augustus Caeser Franke; Lopes,Magnolia de Mendonça; Lima,Mirtes Freitas; Resende,Renato de Oliveira; Nagata,Tatsuya.
Watermelon (Citrullus lanatus) cultivated in almost all tropical and subtropical regions of the world, has its largest output in China, and then, according to FAO data, Turkey, Iran and Brazil, being one of the main crops cultivated in State of Tocantins, Brazil. In this work was investigated the occurrence and distribution of the watermelon viruses, totaling 752 samples taken in a stratified experimental design in four representative regions of production: Gurupi (150), Lagoa da Confusao (232), Formoso do Araguaia (265) and Porto Nacional (105). The sampling and collecting the leaves of plants with the presence of symptoms were performed once a week during the entire cultivation cycle. As a result, were observed by Dot-ELISA method, different types of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Watermelon; Citrullus lanatus; Potyvirus; Cucumovirus; Tospovirus; Serological assay.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000200192

Utilization of the biorreactor of imersion by bubbles at the micropropagation of Ananas comosus L. Merril
Provedor de dados: 52
Autores: Scheidt,Gessiel Newton; Arakaki,Andréa Haruko; Chimilovski,Jacqueline Sugitani; Portella,Augustus Caeser Franke; Spier,Michele Rigon; Woiciechowski,Adenise Lorenci; Biasi,Luiz Antonio; Soccol,Carlos Ricardo.
The research for new techniques of in vitro cultivation is being object of many studies around the world, in order to optimize and decrease production costs of seedlings with agronomical interest. The main goal of this work was to compare different systems of in vitro cultivations using Ananas comosus L. Merril. So, the in vitro growth of the plantlets was promoted in two different bioreactors: Bioreactor of Immersion by Bubbles (B.I.B.®) and the Reactor of Temporary Immersion (R.I.T.A.®) with immersion cycle every 2 hours for 15 minutes and the traditional system in flasks with 200 mL. All cultivation systems used the MS liquid nutritive solution, supplemented with BAP (1 mgL-1), ANA (0.25 mgL-1), sucrose (30 gL-1) and Tween 20® (0.5 µL). The pH was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioreactors; Ananas comosus; Micro propagation.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700005