10 documents found, page 1 of 1
Probiotic powder: Optimization of the process parameters and influence of the d...
Bandiera , Nataly Simões; Bruzaroski, Samera Rafaela; Gomez, Raúl Jorge Hérnan Castro; Santana, Elsa Helena Walter de; Souza, Cínthia Hoch Batista deThis research paper aimed to optimize the process parameters and to select the most suitable drying method in order to obtain probiotic powder at reduced cost. The influence of the addition of growth promoters (glucose, sucrose, cheese whey, peptone, yeast extract or ammonium sulfate), incubation parameters (time and temperature) and drying method (freeze-drying or oven-drying) on the viability of the probiotic...
Influence of storage temperature on the population of microorganisms in raw she...
Bruzaroski, Samera Rafaela; Souza, Raquel Pinheiro de; Pasquim, Pamela da Silva; Fagnani, Rafael; Santana, Elsa Helena Walter deThe aim of the present study was to evaluate the physical-chemical profile of raw sheep milk and the influence of storage temperature on the population of microorganisms. Sheep milk samples were collected from the milk cans (500 mL/sample) and were evaluated the physical-chemical composition: fat, protein, lactose, ash content, total dry matter (TDM), cryoscopy index (°H), titratable acidity, and somatic cell c...
Lipolytic capacity of Pseudomonas spp. isolated from refrigerated raw milk
Almeida, Kelly Molim de; Bruzaroski, Samera Rafaela; Zanol, Daniel; Santos, Joice Sifuentes dos; Santana, Elsa Helena Walter deThe psychrotrophic bacteria growth in refrigerated milk is responsible for the production of heat resistant enzymes, including those which have lipolytic capacity. Lipases can cause rancidity and off-flavor in pasteurized and UHT milk, milk powder and cheese. Pseudomonas spp. is the major genera responsible by lipases synthesis, mainly Pseudomonas fluorescens. The lipolytic capacity of Pseudomonas spp. (1...
Effect of inulin and oligofructose on the physicochemical, microbiological and ...
Fornelli, Anderson Rodrigo; Bandiera, Nataly Simões; Costa, Marcela de Rezende; Souza, Cinthia Hoch Batista de; Santana, Elsa Helena Walter deMade available in DSpace on 2015-10-22T06:20:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2014. Added 1 bitstream(s) on 2015-10-22T09:46:19Z : No. of bitstreams: 1 WOS000352022600019.pdf: 369995 bytes, checksum: 97eb26794cb48b96769b625ab1de7af5 (MD5); The aim of this study was to verify the effect of inulin and oligofructose on the physicochemical, microbiological and sensory characteristics of symbioti...
Staphylococci: colonies morphological caracteristics, coagulase and EEA product...
Santana, Elsa Helena Walter de; Beloti, Vanerli; Oliveira, Tereza Cristina R. M. de; Moraes, Luciane B. de; Tamanini, Ronaldo; Silva, Wladimir P.The stories of food poisoning from staphylococci, mainly by S. aureus, are frequently associates to the ingestion of food with 100 ng of enterotoxin/g or mL. The production of enterotoxin using staphylococci is strongly associated with the production of coagulase. In this paper, milk samples of 51 milk properties in Londrina (RS) and 50 in Pelotas had been evaluated. All the 101 samples had presented counts of ...
Utilization of horse plasma in coagulase test for Staphylococci isolated from r...
Silva, Luiz Henrique Cabral da; Monteiro, Alexandre Amorim; Beloti, Vanerli; Barros, Márcia de Aguiar Ferreira; Nero, Luís AugustoStaphylococci are frequently related to food poisoning outbreaks that are caused by their enterotoxins. The enterotoxins production is highly correlated to coagulase production, which one is detected in identification of pathogenic strains. Usually the coagulase test is conducted using lyophilized rabbit plasma, or even fresh rabbit blood, separated by sedimentation. The lyophilized plasma has high costs and th...
Milk contamination in different points of the dairy process. ii) mesophilic, ps...
Santana, Elsa Helena Walter de; Beloti, Vanerli; Müller, Ernest Eckehardt; Ferreira, Márcia de Aguiar; Moraes, Luciane Bilia de; Pereira, Mykel StepanniPsychrotrophics microorganisms are able to multiply under refrigeration temperatures. They can produce heat-resistant extracellular enzymes that cause organoleptic and structural changes in milk and dairy products. With the objective of determining the frequency of microorganisms in the dairy process, four farms were evaluated in Londrina city – Brazil and different points were assessed. Mesophilic (48hs at 35o...
Milk contamination in different points of the process: I) Aerobic mesophilics a...
Santana, Elsa Helena Walter de; Beloti, Vanerli; Barros, Márcia de Aguiar Ferreira; Moraes, Luciane Bilia de; Gusmão, Viviane VieiraTo improve the microbiology quality of the milk produced in Brazil, steps like the refrigeration have been implanted in the dairy sector but, temperatures of 4oC are selective for psycrotrophics microorganisms. These microorganisms, irrespective of their optimum growth temperature, are able to multiply in refrigeration temperature and produce heat-resistant extra celular enzymes that can cause changes, especial...
Assessment of the efficiency of ColiSure™ for coliforms Escherichia coli enumer...
Beloti, Vanerli; Barros, Márcia de Aguiar Ferreira; Nero, Luís Augusto; Santana, Elsa Helena Walter de; Souza, Juliana Aparecida deIn the dairy industry the coliforms detection can he used as indicative of hygiene production of the raw milk and the contamination after-pasteurization. The traditional methods for the enumeration of the total and faecal coliforms are laborious and needs an incubation time of 96 hours. Rapid methods for detection of these microorganisms have been developed and among them the ColsSuroit is a rapid method that g...
Evaluation of the raw milk quality commercialized in Cornélio Procópio city, Pa...
Beloti, Vanerli; Barros, Márcia de Aguiar Ferreira; Souza, Juliana Aparecida de; Nero, Luís Augusto; Santana, Elsa Helena Walter de; Balaria, OscarThe clandestine commerce of raw milk represents a important question of public health. With the objective to eradicate this commerce, to warn the population about the risks and to find solutions for the producers a campaign was achieved in the Cornélio Procópio City in the north of Parana' State .The advertising campaign "Pasteurized milk is health" was developed to stop the raw milk commerce, show its risks an...