Microbial Populations
Mostrando 1-12 de 537 artigos, teses e dissertações.
-
1. Influence of genetic regulatory effects modified by environmental immune activation on periapical disease
Abstract: The objective of this study was to compare the periradicular responses in endodontic infections among members of two populations: an urban Brazilian population and a non-mixed indigenous population. Samples were collected immediately and 7 days after the cleaning and shaping procedures (after reducing the intracanal microbial load) in an attempt to
Braz. oral res.. Publicado em: 02/12/2019
-
2. Impacto da queima de vegetação do Cerrado sobre fungos habitantes do solo
Resumo Existem poucos estudos relacionados ao impacto de queimadas sobre os fungos habitantes do solo presente no cerrado. Objetivou-se com este trabalho identificar a micoflora presente em amostras de solos, antes e após o processo de queimada em duas profundidades, observando a interferência deste processo na população de fungos habitantes do solo. As
Ciênc. Florest.. Publicado em: 30/09/2019
-
3. Dietary fiber and zinc additives on performance and intestinal health of Escherichia coli challenged piglets
ABSTRACT This study aimed to evaluate the effects of zinc oxide and a low level of encapsulated zinc oxide, with or without dietary fiber, on the performance and intestinal health of weaned piglets. A total of 112 piglets were used, divided into four treatment groups: basal diet with zinc oxide (ZnO); basal diet with zinc oxide and dietary fiber (ZnO+DF); ba
Sci. agric. (Piracicaba, Braz.). Publicado em: 02/09/2019
-
4. Yeasts isolated from tropical fruit ice creams: diversity, antifungal susceptibility and adherence to buccal epithelial cells
Resumo Os sorvetes à base de frutas são produtos amplamente consumidos em países tropicais e, devido à sua composição, podem ser uma boa fonte de crescimento microbiano, incluindo patógenos oportunistas. Os objetivos deste estudo foram caracterizar as populações de leveduras presentes nos sorvetes brasileiros à base de frutas e investigar sua susce
Braz. J. Food Technol.. Publicado em: 04/07/2019
-
5. In vitro study of postbiotics from Lactobacillus plantarum RG14 on rumen fermentation and microbial population
ABSTRACT An in vitro study was carried out to identify the effects of different inclusion levels of postbiotics from Lactobacillus plantarum RG14 on rumen fermentation profiles, gas production kinetics, and microbial population in rumen fluid collected from goats. Postbiotics were added at different levels (0, 0.3, 0.6, 0.9, and 1.2%) and incubated for 72 h
R. Bras. Zootec.. Publicado em: 08/11/2018
-
6. Dendritic cells and their relation to apical peridontitis
Abstract: The purpose of this manuscript was to re-discuss apical periodontitis, apical biofilm, and its possible relationship with dendritic cells (DC). DCs are potent regulators of the immune system and their function is divided into three categories that involve the presentation of antigens: the presentation of antigens and activation of T cells; a not we
Braz. oral res.. Publicado em: 18/10/2018
-
7. Effects of Ananas comosus leaf powder on broiler performance, haematology, biochemistry, and gut microbial population
ABSTRACT The objective of our study was to evaluate the effects of pineapple (Ananas comosus) leaf powder (PLP) on broiler performance. One hundred male broiler chicks (aged one day) were divided into five groups consisting of four pens as replicates, which were treated with basal diet (normal control); basal diet supplemented with 1, 2, and 3% PLP; or 50 mg
R. Bras. Zootec.. Publicado em: 16/07/2018
-
8. Comparison of Gut Microbial Diversity in Beijing Oil and Arbor Acres Chickens
ABSTRACT The Beijing oil (BJO) chicken is an autochthona Chinese breed which shows outstanding meat quality characteristics compared with fast-growing imported chickens such as Arbor Acres (AA) chickens. Gut microbial diversity has been shown to influence host factors such as energy and nutrient metabolism, immune response and fertility. Consequently, it is
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03
-
9. Ecology and biotechnological potential of bacterial community from three marine sponges of the coast of Rio de Janeiro, Brazil
ABSTRACT Marine sponges has been a large reservoir of microbial diversity, with the presence of many species specific populations as well as producing biologically active compounds, which has attracted great biotechnological interest. In order to verify the influence of the environment in the composition of the bacterial community present in marine sponges a
An. Acad. Bras. Ciênc.. Publicado em: 11/12/2017
-
10. Purification and characterization of a thermostable alkaline cellulase produced by Bacillus licheniformis 380 isolated from compost
ABSTRACT During composting processes, the degradation of organic waste is accomplished and driven by a succession of microbial populations exhibiting a broad range of functional competencies. A total of 183 bacteria, isolated from a composting process, were evaluated for cellulase activity at different temperatures (37, 50, 60, and 70°C) and pH values. Out
An. Acad. Bras. Ciênc.. Publicado em: 16/10/2017
-
11. The use of crude glycerin as an alternative to reduce fermentation losses and enhance the nutritional value of Piatã grass silage
ABSTRACT The objective of this study was to evaluate fermentation losses and the nutritional value of silage of Brachiaria brizantha cv BRS Piatã ensiled with different levels of crude glycerin. The experiment followed a 4 × 2 completely randomized factorial design with four doses of crude glycerin (0, 100, 200, and 300 g kg–1 of DM silage) and two cutti
R. Bras. Zootec.. Publicado em: 2017-08
-
12. Production of flavor compounds from olive mill waste by Rhizopus oryzae and Candida tropicalis
Abstract The purpose of this study was to investigate the production of flavor compounds from olive mill waste by microbial fermentation of Rhizopus oryzae and Candida tropicalis. Olive mill waste fermentations were performed in shake and bioreactor cultures. Production of flavor compounds from olive mill waste was followed by Gas Chromatography–Mass spect
Braz. J. Microbiol.. Publicado em: 2017-06