Desenvolvimento de bebida láctea potencialmente probiótica carbonatada: características físico-químicas, microbiológicas e sensoriais

The goal of this work was to develop a strawberry fl avored dairy beverages carbonated and fermented with potential probiotic bacteria. Four formulations of dairy beverages were elaborated: Control (BL); Fermented (BLF); Carbonated (BLC) and Carbonated Fermented (BLFC). In samples submitted for carbonation, a carbonator was used for the carbon dioxide (CO2 ) gas injection dissolved in drinking water and the cultivation consisting of lactic bacteria Lactobacillus acidophilusLA-5®, Bifi dobacterium BB-12® and Streptococcus thermophilus (Biorich, Chr. Hansen) was employed on the fermented samples. The samples were characterized by physical and chemical, microbiological and sensory parameters. The BLC sample showed the presence of yeasts and coliform counts, but the counts indicated that it was suitable for consumption in 28 days time. The BL presented average coliform counts above the limit established by the law after 21 days of refrigerated storage. The presence of lactic bacteria and CO2 and their effects on lower proteolysis indexes, lower pH values and higher acidity values were correlated with signifi cant inhibitory effect of contaminated microorganisms in the BLF and BLFC. The carbonation was not stimulatory for the growth of lactic crops, mainly in the genus Bifi dobacterium spp. and Streptococcus spp. The BLF drink presented greater sensory acceptance and purchase intention test results, however the carbonated beverage presented positive results, with mean values greater than 50% in the acceptance tests with potential inclusion as sensory differential in dairy beverages. Just BLFC drink was considered potentially probiotic, by presenting minimum counts of Lactobacillus spp. during storage. Further studies should be conducted with the technology of carbonation, since it has been proven the correlation of the presence of CO2 with inhibitory effect of contaminated microorganisms and lower physical and chemical changes of dairy beverages.

Avaliação do perfil químico de fenólicos, do potencial antioxidante e fotoprotetor da torta de semente de Coffea arabica L. (Rubiaceae)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Isolamento de leveduras em indústria de refrigerante e avaliação da susceptibilidade à ação antimicrobiana dos agentes sanificantes de uso industrial

Pós-graduação em Microbiologia - IBILCE

Determinação do teor alcoólico de vodcas: uma abordagem multidisciplinar no ensino da física, química e matemática

In this paper, it is proposed an experimental activity to be developed with high school students, addressing the concepts of density and surface tension from a multidisciplinary approach among Physics, Chemistry and Mathematics. In this proposal, students are challenged to determine the alcohol content of vodkas from intensive physical properties of liquids. Two calibration curves were obtained, one for density and another for surface tension as a function of ethanol concentration in water. The alcohol levels obtained from these properties were very close to the values given by manufacturers, due the similarity of these beverages with ethanol-water binary mixtures.

Potenciais corticais auditivos e modulação autonômica cardíaca em mulheres saudáveis

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise isotópica do gás carbônico de espumantes comercializados no Brasil

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Produção de bebida mista de extrato hidrossolúvel de soja e suco de uva submetida a diferentes doses de radiação gama

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Vinificação em tinto de uvas americanas: efeito das técnicas de pré-secagem das uvas e de chapéu submerso nos perfis químico e sensorial

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise isotópica do carbono em néctares de caju

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Isotope analysis method (δ¹³C) in clarified apple juice

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Método de análise isotópica (δ13C) e quantificação da percentagem de fonte C3 em sucos de uva comerciais

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise energética de cerveja eleborada com mel

The objective of this study was to characterize energetically beersmade withhoney. The tests of beer production weremade withninetreatments,threecombination of the originalextract concentrations (11, 13and 15 °Brix) and threepercentagesof honeyin the wort formulation(0, 20 and 40%).The experimentwas completely randomizedwith two replications, totaling eighteenplots.Themashingprocesswas performed byinfusion, with honey added in the boiling step. After clarified, the wort had its extract contents corrected with the addition of filtered water and was inoculated withlowfermentation yeast .The fermentation occurred at 10 ° C. The beer was manually bottled and stored in a freezer at 0 °C for 15 days, formaturation. The beers were chemically analyzed on proximate composition (moisture, protein, lipid, ash, and carbohydrate), alcohol content (% m / m) and then calculated the energy value. The results ofchemical analysis andenergetic valuesof the beerswere subjected to analysisof variance (F test) and the means werecompared byTukey testat 5% probability. The commonbeershad the lowestenergy value (31.05 to 31.95 kcal100g-1) in relation toextra(36.42 to 38.42 kcal100g-1) and strong(38.20 to 40.17 kcal100g-1) beers. Theincrease in the original extractin beerraises theircaloric values. The presenceof honeyin the formulationincreasedthe energetic valuesincommon andextrabeersand decreasedin strong.The levelsof alcohol andcarbohydratewere predominant in thebeer energetic values,beingpossible to observeadirect relation amongthese components ofbeer and theircaloric value.

Análise calorimétrica de cervejas produzidas utilizando cevada como adjunto de malte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação do processo de hidrólise enzimática para obtenção de açúcares a partir de gengibre (Zingiber officinale)

Ginger is a starchy tubers prized for their chemical components. In the production of any kinds of beverages has been added to the extract of ginger. However, in view of the high starch content, a possibility of further development of the agribusiness sector this would be the hydrolysis tuberous rhizomes disqualified for export in order to obtain hydrolysates that would be used in the preparation of fermented beverages. This work aimed to evaluate the production of sugar from rhizomes of ginger. Two α-amylase enzymes were tested in the stage of liquefaction (Liquozyme Supra (T1) and Termamyl 2X (T2)), as well as the effect of time of action of amyloglucosidase (AMG 300L). The hydrolysates were analyzed in liquid chromatography (HPLC) and was also carried out the mass balance of the processes. The results showed higher hydrolysis of starch in the treatment that used Liquozyme Supra in liquefaction. The action time of 18 hours of AMG 300L hydrolyzate which gave an 98% of its chemical components was glucose.

Alimentos tóxicos para cães e gatos

Pet animals are closer to their owners and for this reason erroneously share the same alimentation. Several substances can cause intoxication or poisoning in dogs and cats, being many of those also found in human food. Some foods that are edible for humans or even to other animal species can be risky for dogs and cats due to different metabolic pathways, and further damage can be caused depending on the amount or concentration consumed. Poisoning in animals occur intentionally or accidentally in the household of its owner, occurring acute onset of clinical signs. Thus, the objective of this review was to present the food products for humans that cannot be given to dogs and cats as well as clinical signs characteristic of a toxicosis, also demonstrating the therapy for the damage created by consumption of those substances. This review explores the mechanisms of action and clinical signs of toxicosis caused by chocolate, xylitol, macadamia nuts, onions, garlic, grapes and raisins, avocado, alcoholic beverages and milk.