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Pesquisa : G02.111.158 [Categoria DeCS]
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Id: biblio-1038536
Autor: Ribeiro, Paula Aver Bretanha; Normandin, Eve; Meyer, Philippe; Juneau, Martin; White, Michel; Nigam, Anil; Gayda, Mathieu.
Título: Beta-Blocker Type Effect on Substrate Oxidation during HIIE in Heart Failure Patients: Pilot Data / Efeito do Tipo Betabloqueador na Oxidação de Substratos durante HIIE em Pacientes com Insuficiência Cardíaca: Dados Piloto
Fonte: Arq. bras. cardiol;112(3):304-308, Mar. 2019. tab, graf.
Idioma: en.
Resumo: Abstract The effect of third and second-generation type of beta-blocker on substrate oxidation especially during high-intensity exercises are scarce. The objective of the study is to explore differences of beta-blocker regimens (vasodilating vs. non-vasodilating beta-blockers) for substrate oxidation during in high-intensity intermittent exercise (HIIE) in chronic heart failure and reduced ejection fraction (HFrEF). Eighteen CHF males (58.8 ± 9 years), 8 under use of β1 specific beta-blockers+alfa 1-blocker and 10 using β1 non-specific beta-blockers, were randomly assigned to 4 different HIIE, in a cross-over design. The 4 protocols were: 30 seconds (A and B) or 90 seconds (C and D) at 100% peak power output, with passive (A and C) or active recovery (50% of PPO; B and D). Energy expenditure (EE; kcal/min), quantitative carbohydrate (CHO) and lipid oxidation (g/min) and qualitative (%) contribution were calculated. Two-way ANOVA and Bonferroni post-hoc test were used (p-value ≤ 0.05) to compare CHO and lipid oxidation at rest and at 10min. Total exercise time or EE did not show differences for beta-blocker use. The type of beta-blocker use showed impact in CHO (%) and lipid (g/min and %) for rest and 10 min, but absolute contribution of CHO (g/min) was different just at 10min (Interaction p = 0.029). Higher CHO oxidation was found in vasodilating beta-blockers when comparing to non-vasodilating. According to our pilot data, there is an effect of beta-blocker type on substrate oxidation during HIIE, but no influence on EE or exercise total time in HFrEF patients.

Resumo Os dados sobre efeito do tipo de betabloqueador de terceira e segunda geração na oxidação do substrato, especialmente durante exercícios de alta intensidade, são escassos. O objetivo do estudo é explorar as diferenças de tratamentos com betabloqueadores (betabloqueadores vasodilatadores vs. não-vasodilatadores) na oxidação de substratos durante exercícios intermitentes de alta intensidade (HIIE) na insuficiência cardíaca crônica e fração de ejeção do ventrículo esquerdo reduzida (ICFEr). Dezoito pacientes do sexo masculino com ICC (58,8 ± 9 anos), 8 em uso de betabloqueadores β1 específicos + bloqueador α-1 e 10 utilizando betabloqueadores β1 não-específicos, foram aleatoriamente designados para 4 diferentes HIIE, em um desenho cruzado. Os 4 protocolos foram: 30 segundos (A e B) ou 90 segundos (C e D) a 100% da potência de pico de saída (PPO), com recuperação passiva (A e C) ou ativa (50% de PPO; B e D). O gasto energético (GE; kcal/min), a ingestão de carboidratos quantitativos (CHO) e oxidação lipídica (g/min) e qualitativa (%) foram calculados. Anova de dois fatores e teste post-hoc de Bonferroni foram usados (p-valor ≤ 0,05) para comparar a oxidação de CHO e lipídios em repouso e aos 10 minutos. O tempo total de exercício ou GE não mostraram diferenças de acordo com o uso de betabloqueadores. O tipo de betabloqueador mostrou impacto em CHO (%) e lípides (g/min e %) para repouso e aos 10 min, mas a contribuição absoluta de CHO (g/min) foi diferente apenas aos 10 minutos (Interação p = 0,029). Foram encontradas maiores oxidações de CHO com betabloqueadores vasodilatadores quando comparados com os não-vasodilatadores. De acordo com nossos dados piloto, há um efeito do tipo do betabloqueador na oxidação do substrato durante o HIIE, mas nenhuma influência no GE ou no tempo total de exercício nos pacientes com ICFEr.
Descritores: Exercício Físico/fisiologia
Agonistas Adrenérgicos beta/farmacologia
Metabolismo Energético/efeitos dos fármacos
Metabolismo dos Carboidratos/fisiologia
Treinamento Intervalado de Alta Intensidade/métodos
Insuficiência Cardíaca/fisiopatologia
-Função Ventricular Esquerda/fisiologia
Agonistas Adrenérgicos beta/metabolismo
Estudos Cross-Over
Metabolismo dos Lipídeos/fisiologia
Insuficiência Cardíaca/metabolismo
Limites: Humanos
Masculino
Pessoa de Meia-Idade
Idoso
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME


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Id: biblio-1116437
Autor: Cisternas C, Daniel; Jaime M, Francisca.
Título: Dolor y distensión abdominal: abordaje diagnóstico a distintas edades / Abdominal pain and distention: diagnostic approach at different ages
Fonte: Gastroenterol. latinoam;30(supl.1):S39-S43, 2019. tab.
Idioma: es.
Resumo: Fluctuating abdominal pain and bloating suggest gastrointestinal origin with multiple causes. In adults, patients fulfilling the Rome criteria for irritable bowel syndrome (IBS) have a low probability of neoplasms or intestinal inflammatory diseases. In these patients it is cost effective to request fecal calprotectin and celiac disease serology. Due to the high probability of nocebo effect, the diagnosis of sensitivity to non celiac and food allergies should require a blind rechallenge. It is recommended to evaluate other non ominous diagnostic options in a second stage if there is not good control of symptoms. In adults that do not fulfil the criteria of IBS or in adults older than 50 it is often necessary to request more studies, including endoscopic examinations. In children, abdominal pain and bloating occur frequently in the context of excessive consumption of sugar (including fructose, lactose and sorbitol). In infants it can occur in the context of congenital malformations, infant colics and food allergies. An active search for symptoms and signs of alarm is recommended. In their absence the performance of an endoscopic study is low. The use of celiac disease serology is also recommended, but the use of fecal calprotectin has the limitation that normal values are not present below age 4, so its use is not recommended under that age.

El dolor abdominal y la distensión abdominal fluctuantes sugieren origen gastrointestinal, con múltiples causas. En adultos, los pacientes que cumplen criterios de Roma para Síndrome de Intestino Irritable (SII) tienen una baja probabilidad de neoplasias o enfermedades inflamatorias intestinales (EII). En estos pacientes, es costoefectivo solicitar calprotectina fecal y serología de enfermedad celiaca. Por la alta probabilidad de efecto nocebo, el diagnóstico de sensibilidad al gluten no celiaca (SGNC) y alergias alimentarias debería requerir un rechallenge ciego. Es recomendable evaluar otras opciones diagnósticas no ominosas en una segunda etapa, si no hay buen control sintomático. En adultos que no cumplen criterios de SII o en adultos mayores de 50 años, suele requerirse más cantidad de estudios, incluyendo endoscópicos. En niños, el dolor abdominal y distensión ocurren frecuentemente en el contexto de consumo excesivo de azúcares (incluyendo fructosa, lactosa y sorbitol). En lactantes puede ocurrir también en el contexto de malformaciones congénitas, cólicos del lactante y alergia alimentaria. Se recomienda la búsqueda activa de signos y síntomas de alarma. En su ausencia el rendimiento del estudio endoscópico es bajo. También se recomienda el uso de serología de enfermedad celíaca, pero el uso de calprotectina fecal tiene la limitación de ausencia de valores de normalidad hasta los 4 años, por lo que su uso no se recomienda bajo esa edad.
Descritores: Dor Abdominal/diagnóstico
Dor Abdominal/etiologia
Dilatação Patológica/diagnóstico
Dilatação Patológica/etiologia
Abdome/patologia
-Doença Celíaca/complicações
Síndrome do Intestino Irritável/complicações
Metabolismo dos Carboidratos
Hipersensibilidade Alimentar
Síndromes de Malabsorção/complicações
Limites: Humanos
Criança
Adulto
Tipo de Publ: Revisão
Responsável: CL61.1 - Biblioteca Central Campus Sur


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Id: biblio-888779
Autor: Moura, B B; Almeida, P H; Balliana, A G; Cobos, J Y G; Erbano, M; do Prado, K A; Vudala, S M; Wosch, L; Pereira-Netto, A B.
Título: Effects of changes in micro-weather conditions on structural features, total protein and carbohydrate content in leaves of the Atlantic rain forest tree golden trumpet (Tabebuia chrysotricha) / Efeito de alterações nas condições micro-climáticas sobre características estruturais, e proteína e carboidratos histoquimicamente marcados, de folhas da árvore da floresta Atlântica ipê amarelo
Fonte: Braz. j. biol;77(3):535-541, July-Sept. 2017. graf.
Idioma: en.
Resumo: Abstract Golden trumpet, Tabebuia chrysotricha, is a native tree from the Brazilian Atlantic rain forest, with a broad latitudinal distribution. In this study, we investigated the potential effects of short-term changes in micro-weather conditions on structural features, and total protein and carbohydrate content of golden trumpet leaves, using structural and histochemical approaches. Leaves were harvested in four different micro-weather conditions: 1. Afternoon, after a hot, sunny day; 2. at dawn, after a previously hot, sunny day; 3. at noon, of a hot, sunny day; and 4. at noon, of a cold, cloudy day. Leaflets exposed to low light irradiance showed flattened chloroplasts, uniformly distributed within the cells, throughout the palisade parenchyma. Conversely, leaflets exposed to high light irradiance presented flattened and rounded chloroplasts, in the upper and lower palisade parenchyma cells, respectively. The strongest protein staining was found for leaves harvested at the coldest period, whereas the weakest protein staining was found for leaves harvested after a hot, sunny day. The largest and most numerous starch grains were found for leaves harvested in the afternoon, after a hot, sunny day. Conversely, the smallest and less numerous starch grains were found for leaves harvested at dawn. Analysis of the data reported herein suggests that the leaflet responses to transient changes in micro-weather conditions are likely to contribute to the golden trumpet successful establishment in the broad latitudinal distribution in which the species is found.

Resumo Ipê amarelo é uma árvore nativa da floresta Atlântica brasileira, encontrada em uma ampla distribuição latitudinal. Neste estudo, nós investigamos os efeitos potenciais de alterações de curto prazo nas condições micro-climáticas sobre características estruturais, proteína e carboidratos histoquimicamente marcados, de folhas de ipê amarelo, usando estratégias de análise estrutural e histoquímicas. As folhas foram marcadas em quatro condições microclimáticas distintas: 1. Tarde, após um dia quente e ensolarado; 2. Amanhecer, após um dia quente e ensolarado; 3. Ao meio-dia, de um dia quente e ensolarado; e 4. Ao meio-dia, de um dia frio e nublado. Folíolos expostos à baixa irradiância luminosa apresentaram cloroplastos achatados, uniformemente distribuídos no interior das células, por todo o parênquima paliçádico, enquanto que folíolos expostos à alta irradiância apresentaram cloroplastos achatados e arredondados, nas células superiores e inferiores do parênquima paliçádico, respectivamente. A marcação mais intensa para proteína foi observada para folhas coletadas no momento mais frio de coleta, enquanto que a marcação mais fraca foi observada para folhas coletadas após um dia quente e ensolarado. Os grãos de amido maiores e mais numerosos foram observados em folhas coletadas durante a tarde de dia quente e ensolarado, enquanto que os menores e menos numerosos grãos de amido foram observados em folhas coletadas ao amanhecer.
Descritores: Proteínas de Plantas/metabolismo
Tempo (Meteorologia)
Folhas de Planta/metabolismo
Tabebuia/anatomia & histologia
Tabebuia/metabolismo
Metabolismo dos Carboidratos
-Brasil
Cloroplastos/metabolismo
Floresta Úmida
Microclima
Responsável: BR1.1 - BIREME


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Id: biblio-984007
Autor: Resende, C F; Pacheco, V S; Dornellas, F F; Oliveira, A M S; Freitas, J C E; Peixoto, P H P.
Título: Responses of antioxidant enzymes, photosynthetic pigments and carbohydrates in micropropagated Pitcairnia encholirioides L.B. Sm. (Bromeliaceae) under ex vitro water deficit and after rehydration / Respostas de enzimas antioxidantes, pigmentos fotossintéticos e carboidratos em Pitcairnia encholirioides L.B. Sm. (Bromeliaceae) micropropagadas, sob déficit hídrico ex vitro e após reidratação
Fonte: Braz. j. biol;79(1):53-62, Jan.-Mar 2019. tab, graf.
Idioma: en.
Projeto: FAPEMIG.
Resumo: Abstract In this study, the activities of antioxidant enzymes, photosynthetic pigments, proline and carbohydrate contents in Pitcairnia encholirioides under ex vitro conditions of water deficit were evaluated. Results show that plants under progressive water stress, previously in vitro cultured in media supplemented with 30 g L-1 sucrose and GA3, accumulated more proline and increased peroxidase (POD) activity and the contents of photosynthetic pigments and carbohydrates. For plants previously in vitro cultured with 15 g L-1 sucrose and NAA, no differences were found for proline content and there were reductions in activities of peroxidase (POD), catalase (CAT) and poliphenoloxidase (PPO), and in contents of carbohydrates, with progress of ex vitro water deficit. After rehydration, plants showed physiological recovery, with enzymatic activities and contents of metabolites similar to those found in the controls not submitted to dehydration, regardless of the previous in vitro culture conditions. These results show that micropropagated P. encholirioides has high tolerance to dehydration once in ex vitro conditions, which can ensure the survival of plants from tissue culture when transferred to its natural environment, emphasizing the importance of such biotechnology for the propagation of endangered species.

Resumo Neste estudo, foram avaliadas as atividades de enzimas antioxidantes, pigmentos fotossintéticos, conteúdo de prolina e carboidratos em Pitcairnia encholirioides sob déficit hídrico em condições ex vitro. Os resultados mostraram que as plantas sob estresse hídrico progressivo, previamente cultivadas in vitro em meio de cultura suplementado com 30 g L-1 de sacarose e GA3 acumularam mais prolina e aumentaram a atividade da peroxidase (POD) e os teores de pigmentos fotossintéticos e carboidratos. Para plantas previamente cultivadas in vitro com 15 g L-1 de sacarose e ANA, não foram encontradas diferenças nos conteúdos de prolina e houve reduções nas atividades da peroxidase (POD), catalase (CAT) e polifenoloxidase (PPO), e no conteúdo de carboidratos, com o progresso do déficit hídrico ex vitro. Após a reidratação, as plantas apresentaram recuperação fisiológica, com atividades enzimáticas e conteúdo de metabólitos semelhantes aos encontrados nos controles não sujeitos à desidratação, independentemente das condições de cultivo in vitro. Estes resultados mostram que P. encholirioides micropropagada tem alta tolerância à desidratação uma vez em condições ex vitro, o que pode garantir a sobrevivência de plantas provenientes da cultura de tecidos quando transferidas para seu ambiente natural, enfatizando a importância desta biotecnologia para a propagação de espécies ameaçadas.
Descritores: Fotossíntese/fisiologia
Prolina/metabolismo
Água/metabolismo
Bromeliaceae/fisiologia
Secas
Antioxidantes/metabolismo
-Pigmentos Biológicos
Proteínas de Plantas/metabolismo
Bromeliaceae/enzimologia
Metabolismo dos Carboidratos
Longevidade
Responsável: BR1.1 - BIREME


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Id: lil-665005
Autor: Soutelo, María J; Saban, Melina; Fritz, María C; Perez, Susana; Lutfi, Ruben J; Gasali, Fernando.
Título: Prevalencia de disfunción glucémica post pancreatitis aguda. Estudio prospectivo / Glycemic dysfunction prevalence post acute pancreatitis. A prospective study
Fonte: Rev. gastroenterol. Perú;32(3):262-266, jul.-sept. 2012. tab.
Idioma: es.
Resumo: OBJETIVO: Estimar la prevalencia de la alteración del metabolismo de los hidratos de carbono en pacientes con pancreatitis aguda leve. MÉTODOS: Se incluyó 85 pacientes con diagnóstico de pancreatitis. Se utilizaron los criterios de Ranson y Balthazar para evaluar pronóstico. Los pacientes fueron interrogados y examinados. Se realizó laboratorio de rutina y prueba de tolerancia oral a la glucosa (PTOG). Se excluyeron pacientes con diagnóstico previo de diabetes mellitus, pancreatitis alcohólica, hipertrigliceridemia severa y pancreatitis recurrente/severas. RESULTADOS: Ingresaron 30 mujeres y 27 hombres. Post PTOG fueron clasificados en tres grupos. Grupo 1 (n: 19): PTOG normal, Grupo 2 (n: 33): GAA, IHC o ambas y Grupo 3 (n: 5): diagnóstico de diabetes mellitus. El grupo 3 presentó un promedio mayor de edad (p=0,02) y Tensión Arterial Diastólica (p=0,048). Se observó una diferencia significativa en los valores de glucemia basal (p= 0.0001) y a los 120 minutos post PTOG (p= 0.0001). El HOMA, se encontró elevado (p=0.031) en el grupo 2. CONCLUSIONES: Este trabajo muestra una relación entre pancreatitis agudas leves y disfunción del metabolismo de la glucosa, donde encontramos que los pacientes de mayor edad, TAD y aquellos con SM presentaron mayor prevalencia de 65.66% de Pre diabetes y diabetes.

OBJECTIVE: To estimate the prevalence of altered metabolism of carbohydrates in patients with mild acute pancreatitis. METHODS: We included 85 patients diagnosed with pancreatitis. We used to evaluate prognosis Balthazar and Ranson criteria. All patients were interviewed and examined. Was performed routine laboratory and Oral glucose tolerance test (OGTT). We excluded patients with previous diagnosis of diabetes mellitus, alcoholic pancreatitis, severe hypertriglyceridemia and recurrent/ severe pancreatitis. RESULTS: 30 women and 27 men. After performing the OGTT were classified into three groups. Group 1 (n: 19): normal OGTT; Group 2 (n: 33): GAA, IHC, or both, and Group 3 (n = 5): with diabetes mellitus. Patients in group 3 had a higher average age (p = 0.02), and higher diastolic blood pressure (DBP) (p = 0.048). We observe a significant difference in fasting glucose values (p = 0.0001) and 120 minutes post-OGTT in all groups (p = 0.0001). HOMA was found higher (p = 0.031) in group 2. CONCLUSIONS: This study showing a link between mild acute pancreatitis and dysfunction of glucose metabolism, which found older patients, DBP and those with metabolic syndrome, had a higher prevalence of 65.66% of Pre diabetes and diabetes.
Descritores: Diabetes Mellitus
Estudos Prospectivos
Glicemia
Metabolismo dos Carboidratos
Pancreatite
Limites: Humanos
Responsável: PE1.1 - Oficina Universitária de Biblioteca


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Id: lil-788951
Autor: Bhari, Ranjeeta; Kaur, Bhawanpreet; Singh, Ram S.
Título: Lectin activity in mycelial extracts of Fusarium species
Fonte: Braz. j. microbiol;47(3):775-780, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT Lectins are non-immunogenic carbohydrate-recognizing proteins that bind to glycoproteins, glycolipids, or polysaccharides with high affinity and exhibit remarkable ability to agglutinate erythrocytes and other cells. In the present study, ten Fusarium species previously not explored for lectins were screened for the presence of lectin activity. Mycelial extracts of F. fujikuroi, F. beomiformii, F. begoniae, F. nisikadoi, F. anthophilum, F. incarnatum, and F. tabacinum manifested agglutination of rabbit erythrocytes. Neuraminidase treatment of rabbit erythrocytes increased lectin titers of F. nisikadoi and F. tabacinum extracts, whereas the protease treatment resulted in a significant decline in agglutination by most of the lectins. Results of hapten inhibition studies demonstrated unique carbohydrate specificity of Fusarium lectins toward O-acetyl sialic acids. Activity of the majority of Fusarium lectins exhibited binding affinity to D-ribose, L-fucose, D-glucose, L-arabinose, D-mannitol, D-galactosamine hydrochloride, D-galacturonic acid, N-acetyl-d-galactosamine, N-acetyl-neuraminic acid, 2-deoxy-D-ribose, fetuin, asialofetuin, and bovine submaxillary mucin. Melibiose and N-glycolyl neuraminic acid did not inhibit the activity of any of the Fusarium lectins. Mycelial extracts of F. begoniae, F. nisikadoi, F. anthophilum, and F. incarnatum interacted with most of the carbohydrates tested. F. fujikuroi and F. anthophilum extracts displayed strong interaction with starch. The expression of lectin activity as a function of culture age was investigated. Most species displayed lectin activity on the 7th day of cultivation, and it varied with progressing of culture age.
Descritores: Micélio
Fusarium/metabolismo
Fusarium/química
Lectinas/metabolismo
-Testes de Hemaglutinação
Eritrócitos/efeitos dos fármacos
Metabolismo dos Carboidratos
Fusarium/crescimento & desenvolvimento
Hemaglutinação
Lectinas/farmacologia
Limites: Humanos
Animais
Responsável: BR1.1 - BIREME


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Teixeira, Maria Francisca Simas
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Id: lil-788950
Autor: Kirsch, Larissa de Souza; Macedo, Ana Júlia Porto de; Teixeira, Maria Francisca Simas.
Título: Production of mycelial biomass by the Amazonian edible mushroom Pleurotus albidus
Fonte: Braz. j. microbiol;47(3):658-664, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT Edible mushroom species are considered as an adequate source of food in a healthy diet due to high content of protein, fiber, vitamins, and a variety of minerals. The representatives of Pleurotus genus are characterized by distinct gastronomic, nutritional, and medicinal properties among the edible mushrooms commercialized worldwide. In the present study, the growth of mycelial biomass of Pleurotus albidus cultivated in submerged fermentation was evaluated. Saccharose, fructose, and maltose were the three main carbon sources for mycelial biomass formation with corresponding yields of 7.28 g L−1, 7.07 g L−1, and 6.99 g L−1. Inorganic nitrogen sources did not stimulate growth and the optimal yield was significantly higher with yeast extract (7.98 g L−1). The factorial design used to evaluate the influence of saccharose and yeast extract concentration, agitation speed, and initial pH indicated that all variables significantly influenced the production of biomass, especially the concentration of saccharose. The greater amount of saccharose resulted in the production of significantly more biomass. The highest mycelial biomass production (9.81 g L−1) was reached in the medium formulated with 30.0 g L−1 saccharose, 2.5 g L−1 yeast extract, pH 7.0, and a speed of agitation at 180 rpm. Furthermore, P. albidus manifested different aspects of morphology and physiology under the growth conditions employed. Media composition affected mycelial biomass production indicating that the diversification of carbon sources promoted its improvement and can be used as food or supplement.
Descritores: Biomassa
Pleurotus/fisiologia
Micélio
Fermentação
-Carbono/metabolismo
Pleurotus/ultraestrutura
Metabolismo dos Carboidratos
Nitrogênio/metabolismo
Responsável: BR1.1 - BIREME


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Ayub, Marco Antonio Zachia
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Id: biblio-828200
Autor: Coghetto, Chaline Caren; Vasconcelos, Carolina Bettker; Brinques, Graziela Brusch; Ayub, Marco Antônio Záchia.
Título: Lactobacillus plantarum BL011 cultivation in industrial isolated soybean protein acid residue
Fonte: Braz. j. microbiol;47(4):941-948, Oct.-Dec. 2016. tab, graf.
Idioma: en.
Resumo: Abstract In this study, physiological aspects of Lactobacillus plantarum BL011 growing in a new, all-animal free medium in bioreactors were evaluated aiming at the production of this important lactic acid bacterium. Cultivations were performed in submerged batch bioreactors using the Plackett-Burman methodology to evaluate the influence of temperature, aeration rate and stirring speed as well as the concentrations of liquid acid protein residue of soybean, soy peptone, corn steep liquor, and raw yeast extract. The results showed that all variables, except for corn steep liquor, significantly influenced biomass production. The best condition was applied to bioreactor cultures, which produced a maximal biomass of 17.87 g L-1, whereas lactic acid, the most important lactic acid bacteria metabolite, peaked at 37.59 g L-1, corresponding to a productivity of 1.46 g L-1 h-1. This is the first report on the use of liquid acid protein residue of soybean medium for L. plantarum growth. These results support the industrial use of this system as an alternative to produce probiotics without animal-derived ingredients to obtain high biomass concentrations in batch bioreactors.
Descritores: Proteínas de Soja
Meios de Cultura
Lactobacillus plantarum/crescimento & desenvolvimento
Lactobacillus plantarum/metabolismo
-Biomassa
Ácido Láctico/biossíntese
Proteínas de Soja/metabolismo
Proteínas de Soja/química
Reatores Biológicos
Meios de Cultura/química
Metabolismo dos Carboidratos
Fermentação
Hidrólise
Responsável: BR1.1 - BIREME


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Id: lil-788971
Autor: Ouf, Salama A; Moussa, Tarek A; Abd-Elmegeed, Alshimaa M; Eltahlawy, Samar R.
Título: Anti-fungal potential of ozone against some dermatophytes
Fonte: Braz. j. microbiol;47(3):697-702, July-Sept. 2016. tab.
Idioma: en.
Resumo: ABSTRACT Dermatophytes are classified in three genera, Epidermophyton, Microsporum and Trichophyton. They have the capacity to invade keratinized tissue to produce a cutaneous infection known as dermatophytoses. This investigation was performed to study the effect of gaseous ozone and ozonized oil on three specific properties of six different dermatophytes. These properties included sporulation, mycelia leakage of sugar and nutrients and the activity of their hydrolytic enzymes. Generally, ozonized oil was found to be more efficacious than gaseous ozone. Microsporum gypseum and Microsporum canis were the most susceptible, while Trichophyton interdigitale and T. mentagrophytes were relatively resistant. The study revealed a steady decline in spore production of M. gypseum and M. canis on application of ozonated oil. An increase in leakage of electrolytes and sugar was noticed after treatment with ozonized oil in the case of M. gypseum, M. canis, T. interdigitale, T. mentagrophytes and T. rubrum. The results also revealed loss in urease, amylase, alkaline phosphatase, lipase and keratinase enzyme producing capacity of the investigated fungi.
Descritores: Ozônio/farmacologia
Arthrodermataceae/efeitos dos fármacos
Antifúngicos/farmacologia
-Permeabilidade
Esporos Fúngicos/efeitos dos fármacos
Proteínas Fúngicas/metabolismo
Micélio
Arthrodermataceae/fisiologia
Eletrólitos/metabolismo
Ativação Enzimática
Metabolismo dos Carboidratos/efeitos dos fármacos
Limites: Humanos
Responsável: BR1.1 - BIREME


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Id: lil-788963
Autor: Blanco, Alina Sánchez; Durive, Osmar Palacios; Pérez, Sulema Batista; Montes, Zoraida Díaz; Guerra, Nelson Pérez.
Título: Simultaneous production of amylases and proteases by Bacillus subtilis in brewery wastes
Fonte: Braz. j. microbiol;47(3):665-674, July-Sept. 2016. tab, graf.
Idioma: en.
Resumo: ABSTRACT The simultaneous production of amylase (AA) and protease (PA) activity by Bacillus subtilis UO-01 in brewery wastes was studied by combining the response surface methodology with the kinetic study of the process. The optimum conditions (T = 36.0 °C and pH = 6.8) for high biomass production (0.92 g/L) were similar to the conditions (T = 36.8 °C and pH = 6.6) for high AA synthesis (9.26 EU/mL). However, the maximum PA level (9.77 EU/mL) was obtained at pH 7.1 and 37.8 °C. Under these conditions, a considerably high reduction (between 69.9 and 77.8%) of the initial chemical oxygen demand of the waste was achieved. In verification experiments under the optimized conditions for production of each enzyme, the AA and PA obtained after 15 h of incubation were, respectively, 9.35 and 9.87 EU/mL. By using the Luedeking and Piret model, both enzymes were classified as growth-associated metabolites. Protease production delay seemed to be related to the consumption of non-protein and protein nitrogen. These results indicate that the brewery waste could be successfully used for a high scale production of amylases and proteases at a low cost.
Descritores: Peptídeo Hidrolases/biossíntese
Bacillus subtilis/metabolismo
Fermentação
Amilases/biossíntese
Resíduos Industriais
-Temperatura
Cinética
Biotransformação
Metabolismo dos Carboidratos
Concentração de Íons de Hidrogênio
Responsável: BR1.1 - BIREME



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