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| Registros recuperados: 23 | |
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| Beldarraín, T.; Cepero, Y.; Bruselas, A.; Santos, R.; Ramos, M.; Moya, Y.; Núñez, M.; Vergara, N.. |
| Se evaluaron las propiedades tecnológicas de 5 cultivos iniciadores en carne de cerdo. Para ello, se prepararon concentrados de cada cultivo iniciador a 1 y a 2 %. Cada concentrado celular se inoculó a 800 g de carne de cerdo con aditivos. Se empleó un diseño experimental con 2 variables independientes: cultivo iniciador y concentración y se prepararon 11 variantes: var. 1, mezcla de Staphylococcus carnosus-Leuconostoc pentosus a 1 %; var. 2 mezcla de Staphylococcus carnosus-Pediococcus pentasaceus al 1 %, var. 3 mezcla de Staphylococcus carnosus-Lactobacillus plantarum a 1 %; var. 4 Lactobacillus casei a 1 %, var. 5 Lactobacillus acidophillus a 1 %; var. 6 mezcla de Staphylococcus carnosus- Leuconostoc pentosus al 2 %, mezcla de Staphylococcus... |
| Tipo: Journal Contribution |
Palavras-chave: Lactic acid; Cultured product starters. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/5024 |
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| Ávila,Carla Luiza da Silva; Valeriano,Alexandre Rocha; Pinto,José Cardoso; Figueiredo,Henrique César Pereira; Rezende,Adauton Vilela de; Schwan,Rosane Freitas. |
| The aim of this research was to evaluate the effect of microbial additives containing heterofermentative or homofermentative bacteria on the chemical and microbiological characteristics of sugar cane (Saccharum spp) silages. Sugar cane was inoculated with Lactobacillus plantarum, L. paracasei, L. brevis or L. buchneri previously isolated from sugar cane silages or commercial inoculants containing L. buchneri or L. plantarum. Silages were produced in laboratory silos (10 × 60 cm PVC tubes) and evaluated 90 days after ensiling. A randomized complete design was used with eight treatments (seven inoculants and control - without inoculant) and three replications. The inoculation with bacteria affected lactic acid bacteria, yeast populations, volatile fatty... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetic acid; Ethanol; Heterofermentative bacteria; Lactic acid; Lactobacillus; Yeasts. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000100004 |
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| Brustolin,Jean Carlos; Dal Pisol,Andreia; Steffens,Juliana; Toniazzo,Geciane; Valduga,Eunice; Di Luccio,Marco; Cansian,Rogério Luis. |
| The objective of this work was to evaluate the effect of different water pressures and concentrations of lactic acid on microbial counts (mesophilic bacteria, enterobacteria and Salmonella) on pig carcasses without contamination and contaminated carcasses, before and after the last shower and before being cooled. The tests were carried out using 4, 3 and 2 bar water pressure, and 2, 1 and 0% lactic acid concentration. In general, both the pressure in the shower and lactic acid had a positive effect by reducing the microbial count. The interaction between the pressure and lactic acid caused the largest reduction in carcasses surface count for mesophiles. With regard to enterobacteria on contaminated carcasses, the most important variable was the lactic acid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pig carcasses; Decontamination; Water pressure; Lactic acid; Bacteria. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000600954 |
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| Bolívar Ramírez,Norha Constanza; Rodrigues,Marysol Santos; Guimarães,Ariane Martins; Guertler,Cristhiane; Rosa,Juliana Ribeiro; Seiffert,Walter Quadros; Andreatta,Edemar Roberto; Vieira,Felipe do Nascimento. |
| ABSTRACT This study evaluated the performance, immunology, and survival of the Pacific white shrimp Litopenaeus vannamei to experimental challenge to Vibrio alginolyticus based on the use of the probiotic Lactobacillus plantarum and the combined use of probiotic and butyrate. Four different diets resulted from the addition of additives: butyrate, probiotic, butyrate + probiotic, and control (no additives). The attractiveness of the diets was assessed by the percentage of positive choices and rejections, using a dual-choice Y-maze format aquarium. The shrimps were fed during four weeks and performance parameters, intestinal microbiota, and immunological parameters were all evaluated. Subsequently, the shrimps were challenged with V. alginolyticus and after... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal production; Lactic acid; Organic acids. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000600471 |
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| Alrumman,Sulaiman A.. |
| Abstract The bioconversion of cellulosic wastes into high-value bio-products by saccharification and fermentation processes is an important step that can reduce the environmental pollution caused by agricultural wastes. In this study, enzymatic saccharification of treated and untreated date palm cellulosic wastes by the cellulases from Geobacillus stearothermophilus was optimized. The alkaline pre-treatment of the date palm wastes was found to be effective in increasing the saccharification percentage. The maximum rate of saccharification was found at a substrate concentration of 4% and enzyme concentration of 30 FPU/g of substrate. The optimum pH and temperature for the bioconversions were 5.0 and 50 °C, respectively, after 24 h of incubation, with a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Date palm wastes; Cellulases; Enzymes saccharification; Lactic acid. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000100110 |
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| Pedroso,André de Faria; Pedroso,Alexandre Mendonça; Barioni Júnior,Waldomiro; Souza,Gilberto Batista de. |
| The objective was to evaluate the effects of laboratory-silo type and method of silage extract production, respectively, on sugarcane silage fermentation and recovery of fermentation products. Sugarcane was mechanically harvested and ensiled in three different types of laboratory silos (five replicates): 9.7 × 30 cm PVC tubes with tight lids, equipped or unequipped with Bunsen valves, and 20 L plastic buckets with tight lids and Bunsen valves. Three methods were used to produce silage extracts for pH, ethanol, acetic and lactic acids determination: extraction of silage juice by a hydraulic press and production of water extracts using a stomacher or a blender. Total dry matter loss (231 g/kg DM) was not affected by silo type. No interactions between silo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetic acid; Ethanol; Laboratory silo; Lactic acid; Silage extract; Sugarcane silage. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400169 |
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| Bonfá, Caroline Salezzi; Guimarães, Cíntia Gonçalves; Evangelista, Antônio Ricardo; Santos, Alexandre Soares dos; Pantoja, Lílian de Araújo; Castro, Gustavo Henrique de Frias. |
| This study evaluated the pH and contents of dry matter (DM) and lactic acid (AL) of sugarcane silages added with different levels of inclusion of macaúba cake (TM) in different opening times (TA), in days. Laboratory silos used were opened at times 0; 3; 7; 12; 24; 36; 41 and 60 days after ensiling. The response surface methodology was used for statistical analysis. The DM content was influenced by both NI and TA. The inclusion of TM contributed to increase the DM content of sugarcane, as it absorbed moisture of the ensiled sugarcane. The pH values were influenced only by TA, which were lower than 3.8. The AL content was influenced by both NI and TA, that is, the inclusion of TM favored the increase of AL content over the 60 days evaluated. It can be... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactic acid; Opening times; Response surface.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/37571 |
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| Coghetto,Chaline Caren; Vasconcelos,Carolina Bettker; Brinques,Graziela Brusch; Ayub,Marco Antônio Záchia. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactobacillus plantarum BL011; Lactic acid; Liquid acid protein residue of soybean; Plackett-Burman design; Industrial production of biomass. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000400941 |
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| Pinho,Ricardo Martins Araujo; Santos,Edson Mauro; Carvalho,Gleidson Giordano Pinto de; Silva,Ana Paula Gomes da; Silva,Thiago Carvalho da; Campos,Fleming Sena; Macedo,Carlos Henrique Oliveira. |
| The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial fermentation dynamics, the treatments resulted from a 4 × 5 factorial combination consisting of 4 cutting heights and 5 fermentation periods, in a completely randomized design with three replications. The fermentation was evaluated at the end of 1, 3, 7, 15 and 30 days. The other characteristics of silages with 30 days were evaluated following a completely randomized design with four treatments, consisting of 4 cutting heights (30, 40, 50 and 60 cm), and five replications. Fermentation period and cutting height effects and interaction between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cenchrus ciliaris; Enterobacteria; Lactic acid; Microbiology; Semiarid. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001200003 |
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| Santos,E.M.; Pereira,O.G.; Garcia,R.; Ferreira,C.L.L.F.; Oliveira,J.S.; Silva,T.C.; Rosa,L.O.. |
| Microbial populations, pH, ammonium nitrogen/total nitrogen (N-NH3) ratio, concentrations of lactic acid, acetic acid and butyric acid and the chemical composition of Brachiaria decumbens cv. Basiliski silages at different regrowth ages (30, 40, 50, 60 and 70 days) were evaluated by using 2-kg capacity laboratory silos. It was used a 5 × 6 factorial scheme (5 regrowth ages × 6 fermentation periods) in a complete random design, with three replicates. The fermentation periods were 1, 3, 7, 14, 28 and 56 days. Lactic acid bacteria populations were recorded in fresh forage varying from 3.93 (30 days of regrowth) to 5.51 (70 days of regrowth) log colony-forming units (cfu)/g forage. Maximum populations of these microorganisms were recorded in the silages on the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetic acid; Butyric acid; Enterobacteria; Lactic acid; Lactic acid bacteria. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000400007 |
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| Araujo,RGAC; Polycarpo,GV; Barbieri,A; Silva,KM; Ventura,G; Polycarpo,VCC. |
| ABSTRACT The aim of this study was to evaluate diets supplemented with probiotic (Bacillus amyloliquefaciens) and organic acids (lactic, acetic and butyric acid) in attempt to replace the antibiotics and anticoccidial (avilamycin + sodium monensin) growth promoters on performance and economic viability of broilers challenged by Eimeria acervulina, E. maxima and E. tenella. A total of 900 male Cobb® chickens, with a mean weight of 39.90g, were distributed in a completely randomized design in a 2 × 2 + 1 factorial arrangement: supplementation or not of probiotic and organic acids and a treatment with inclusion of antibiotics, comprising five treatments with six replicates. For the studied performance variables, there was no effect of the isolated additives... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acetic acid; Avilamycin; Butyric acid; Lactic acid; Monensin sodium. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200304 |
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| Travassos,P.B.; Godoy,G.; De Souza,H.M.; Curi,R.; Bazotte,R.B.. |
| The aim of this study was to investigate the effect of lactatemia elevation and glycemia reduction on strenuous swimming performance in fasted rats. Three rats were placed in a swimming tank at the same time. The first rat was removed immediately (control group) and the remaining ones were submitted to a strenuous swimming session. After the second rat was exhausted (Exh group), the third one was immediately removed from the water (Exe group). According to the period of time required for exhaustion, the rats were divided into four groups: low performance (3–7 min), low-intermediary performance (8–12 min), high-intermediary performance (13–17 min), and high performance (18–22 min). All rats were removed from the swimming tanks and immediately killed by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lactic acid; Lactate/pyruvate ratio; Exercise tolerance; Exhaustion; Gluconeogenesis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000500618 |
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| Registros recuperados: 23 | |
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