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Anais da Academia Brasileira de Ciências

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https://www.readbyqxmd.com/read/29091111/adding-palm-oil-to-the-diet-of-sheep-alters-fatty-acids-profile-on-yogurt-benefits-to-consumers
#1
Anderson E Bianchi, Aleksandro S DA Silva, Angelisa H Biazus, Neila S P S Richards, Luis G Pellegrini, Matheus D Baldissera, Vicente P Macedo, André L F DA Silveira
The aim of this study was to modify the fatty acid profile of yogurt from sheep milk by the inclusion of different concentrations of palm oil into their diet. Thus, thirty-six sheep during lactation were separated in four groups with nine animals each, as described below: the group T0 (0%); the group T2 (inclusion of 2% of palm oil); the group T4 (inclusion of 4% of palm oil) and the group T6 (inclusion of 6% of palm oil). After 60 days of the supplementation, milk samples were collected and yogurt was produced, which was evaluated regarding the concentration of saturated fatty acids (SFA), monounsaturated fatty acids (MFA), and polyunsaturated fatty acids (PFA)...
October 26, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29091110/evaluation-in-vivo-of-biocompatibility-of-differents-resin-modified-cements-for-bonding-orthodontic-bands
#2
Janaina A Mesquita, Rogério Lacerda-Santos, Gêisa A M Sampaio, Gustavo P Godoy, Cassiano F W Nonaka, Pollianna M Alves
The focus of this study was to test the hypothesis that there would be no difference between the biocompatibility of resin-modified glass ionomer cements. Sixty male Wistar rats were selected and divided into four groups: Control Group; Crosslink Group; RMO Group and Transbond Group. The materials were inserted into rat subcutaneous tissue. After time intervals of 7, 15 and 30 days morphological analyses were performed. The histological parameters assessed were: inflammatory infiltrate intensity; reaction of multinucleated giant cells; edema; necrosis; granulation reaction; young fibroblasts and collagenization...
October 26, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29091109/surface-thermal-and-hemocompatible-properties-of-novel-single-stage-electrospun-nanocomposites-comprising-polyurethane-blended-with-bio-oiltm
#3
Manikandan Ayyar, Mohan Prasath Mani, Saravana Kumar Jaganathan, Rajasekar Rathinasamy, Ahmad Zahran Khudzari, Navaneetha Pandiyaraj Krishnasamy
In this work, the physicochemical and blood compatibility properties of prepared PU/Bio oil nanocomposites were investigated. Scanning electron microscope (SEM) studies revealed the reduction of mean fiber diameter (709 ± 211 nm) compared to the pristine PU (969 nm ± 217 nm). Fourier transform infrared spectroscopy (FTIR) analysis exposed the characteristic peaks of pristine PU. Composite peak intensities were decreased insinuating the interaction of the bio oilTM with the PU. Contact angle analysis portrayed the hydrophobic nature of the fabricated patch compared to pristine PU...
October 26, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29091108/three-decades-of-reference-evapotranspiration-estimates-for-a-tropical-watershed-in-the-eastern-amazon
#4
Renato O DA Silva, Everaldo B DE Souza, Alexandra L Tavares, José A Mota, Douglas B S Ferreira, Pedro W M Souza-Filho, Edson J P DA Rocha
This study estimated the reference evapotranspiration rate (ETo) for the Itacaiúnas River Watershed (IRW), Eastern Amazonia, and measured the accuracy of eight empirical equations: Penman-Monteith (PM), Priestley-Taylor (PT), Hargreaves and Samani (HS), Camargo (CAM), Thornthwaite (TH), Hamon (HM), Kharrufa (KF) and Turc (TC) using monthly data from 1980 to 2013. In addition, it verifies the regional applicability to the IRW using a for the Marabá-PA station. The methods TC and PM (FAO56) presented the best results, which demonstrate that radiation and higher temperatures are the dominant drivers in the Evapotranspiration process, while relative humidity and wind speed have a much smaller impact...
October 26, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29091107/morphology-of-the-axial-skeleton-of-seven-bat-genera-chiroptera-phyllostomidae
#5
Pablo J Gaudioso, M Mónica Díaz, Rubén M Barquez
Here we present detailed descriptions and comparisons of the axial skeleton of seven species of bats belonging to five subfamilies of Phyllostomidae of different trophic guilds. The material examined consisted of 34 complete skeletons of seven species. For five of the studied species, previous descriptions have not been conducted, and for the vampires only limited information is available, so that descriptions for these species are here completed. The axial skeleton has characters that allow grouping of the species phylogenetically of the same subfamily and by feeding habits...
October 26, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29091106/antimicrobial-and-enzymatic-activity-of-anemophilous-fungi-of-a-public-university-in-brazil
#6
Laureana V Sobral, Kelly N Melo, Cleciana M Souza, Sílvio F Silva, Gilvania L R Silva, Andressa L F Silva, Katharine A A Wanderley, Idjane S Oliveira, Roberta Cruz
To the fungal microbiota the UFPE and biotechnological potential enzymatic and antimicrobial production. Air conditioned environments were sampled using a passive sedimentation technique, the air I ratio and the presence of aflatoxigenic strains evaluated for ANVISA. Icelles were to determine the enzymatic activity of lipase, amylase and protease metabolic liquids to determine antimicrobial activity. Diversity was observed in all CAV environments, CFU/m3 ranged from 14 to 290 and I/E ratio from 0.1 to 1.5. The of the fungal genera were: Aspergillus (50%), Penicillium (21%), Talaromyces (14%), Curvularia and Paecilomyces (7% each)...
October 26, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069140/a-new-acetylcholinesterase-inhibitor-from-green-glycosylation-of-trachyloban-19-oic-acid-by-mucor-plumbeus
#7
Gabriel F Dos Santos, Jacqueline A Takahashi
The in vitro metabolism of a widespread natural product, trachyloban-19-oic acid (1), by the fungal species Mucor plumbeus was studied in a sucrose-yeast liquid medium. Two products were isolated, and their structures were determined by spectroscopic means as 7β-hydroxytrachyloban-19-oic acid (5) and trachyloban-19-O-β-D-glucopyranosyl ester (6). To the best of our knowledge, compound 6 is herein reported by the first time in the literature. These compounds were assayed for acetylcholinesterase inhibition along with some related compounds...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069139/elemental-composition-of-vegetables-cultivated-over-coal-mining-waste
#8
Jairo J Zocche, Paula Rohr, Adriani P Damiani, Daniela D Leffa, Miriam C Martins, Caroline M Zocche, Karina O Teixeira, Gabriela D Borges, Maiellen M DE Jesus, Carla E I Dos Santos, Johnny F Dias, Vanessa M DE Andrade
We assessed elemental composition of the liver in mice subjected to one-time or chronic consumption of the juice of vegetables cultivated in a vegetable garden built over deposits of coal waste. Lactuca sativa L. (lettuce), Beta vulgaris L. (beet), Brassica oleracea L. var. italica (broccoli) and Brassica oleracea L. var. acephala (kale) were collected from the coal-mining area and from a certified organic farm (control). Elemental composition was analyzed by particle-induced X-ray emission (PIXE) method. Concentrations of Mg, S, and Ca of mice subjected to one-time consumption of broccoli and concentrations of these same elements plus Si of mice receiving kale were higher in the coal-mining area...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069138/moderate-pathogenic-effect-of-ligophorus-uruguayense-monogenoidea-ancyrocephalidae-in-juvenile-mullet-mugil-liza-actinopterygii-mugilidae-from-brazil
#9
Eduardo Pahor-Filho, Marta C Klosterhoff, Natalia C Marchiori, Joaber Pereira
Monogenoidea pathogenic activity can elicit various histological responses in fish. Species of Ligophorus are specific parasites of mullets, and its relationship with host fish may result in a moderate pathogenic action. In order to ascertain this relationship, estuarine mullets (Mugil liza) were collected in an estuary, reared in laboratory, for three weeks, and forwarded for histological and parasitological analyses. Ligophorus uruguayense (Monogenoidea) infestation in the gills of the mullets was identified...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069137/use-of-performance-indicators-to-assess-the-solid-waste-management-of-health-services
#10
Mayara C Assis, Vanielle A P Gomes, Wagner C Balista, Rodrigo R DE Freitas
Modern society faces serious challenges, among them, the complexity of environmental problems. Thus, there are several possible sources of environmental degradation, however, the waste produced by health services have an important peculiarity due to its toxic or pathogenic characteristics, since when managed improperly provide also health risk public. The involvement of solid waste from healthcare services environmental impact integrates matters a little more complex, because in addition to environmental health, they also interfere with the healthiness of environments that generate, with the consequences of nosocomial infections, occupational health and public...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069136/peculiar-anatomical-traits-high-durability-and-potential-ornamental-use-of-cyclanthaceae-as-fresh-foliage
#11
Maria Camila Medina, Saúl E Hoyos-Gómez, Diego Demarco, Dino Tuberquia
Wild plant species with potential for use as ornamental green foliage are often reported. Nevertheless, there are few studies evaluating morphological and anatomical aspects associated with this use. Preliminary trials suggest that the species of Sphaeradenia (Sander ex Mast.) Harling, a Cyclantaceae that occurs from Costa Rica to Peru, is suitable to be used as fresh foliage because of attractiveness of their leaves in vase and its durability without showing tissue damage, compared with other genera of this family...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069135/cryopreservation-of-banana-s-cv-grand-naine-in-vitro-rhizomes
#12
Luciana C N Londe, Wagner A Vendrame, Massy Sanaei, Alexandre B DE Oliveira
The preservation of banana genetic material is usually performed through seedlings. However, most banana cultivars do not produce seed and are propagated vegetatively. Therefore, cryopreservation is a feasible technique that allows the preservation of banana genotypes indefinitely. For the success of cryopreservation protocols, the selection of cryoprotectants and pre-freezing techniques are important factor. Therefore, the objective of this study was to verify the effects of different cryoprotectants with and without 1% phloroglucinol and pre-cooling periods on the development of a protocol for cryopreservation of in vitro rhizomes ofMusa accuminata(AAA) cv Grand Naine banana...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069134/paleoenvironmental-evolution-of-the-coastal-plain-of-southern-brazil-palynological-data-from-a-holocene-core-in-santa-catarina-state
#13
Lidia A Kuhn, Paulo A Souza, Rodrigo R Cancelli, Wagner G Silva, Renato B Macedo
This paper presents a paleoenvironmental reconstruction from palynological analyses of a sedimentary core of Holocene age, drilled at municipality of Garopaba (Santa Catarina), Southern Brazil. A total of 46 samples was collected for palynological analyses in the 450 cm-long core PCSC-3, as also three samples for radiocarbon dating and granulometric analyses. The palynological content includes 84 taxa related to pollen grains of angiosperms (38) and gimnosperm (3), spores of pteridophyta (16) and bryophyta (2), spores of fungi (8), algae (3), acritarchs (3), dinoflagellate cysts (2) and microforaminiferal linings (1)...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069133/parasitic-communities-of-hoplosternum-littorale-hancock-1828-as-indicators-of-environmental-impact
#14
Karina G A Dias, Carlos A Alves, Reinaldo J DA Silva, Vanessa D Abdallah, Rodney K DE Azevedo
The parasites are indicative of several biological aspects of their hosts, including their diet, migration, recruitment and phylogeny, but they can also be direct indicators of the environmental quality. Hoplosternum littorale is a fish that has a high commercial value in some South American countries. The fishes were collected from January to July 2012, in two locations of the Peixe River in the municipality of Anhembi, State of São Paulo, Brazil, which had different environmental and limnological characteristics (river mouth and Lagoa Cabeça de Boi)...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069132/the-conservation-of-native-priority-medicinal-plants-in-a-caatinga-area-in-cear%C3%A3-northeastern-brazil
#15
Maria O Santos, Bianca V DE Almeida, Daiany A Ribeiro, Delmacia G DE Macêdo, Márcia J F Macêdo, Julimery G F Macedo, Francisca F S DE Sousa, Liana G S DE Oliveira, Manuele E Saraiva, Thatiane M S Araújo, Marta M A Souza
Much of the Brazilian semiarid region faces a considerable process of degradation of natural resources, and ethnobotanical studies have collaborated with important information about the use and traditional knowledge, serving as a tool to design conservation strategies of native plant species. Thus, this study aimed to determine medicinal species meriting conservation priorities in a "Caatinga" area in the northeastern of Brazilian territory. The ethnobotanical data were collected through semi-structured interviews with key subjects selected through the "snowball" technique...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29069131/latin-american-scientific-contribution-to-ecology
#16
Juliana Wojciechowski, Fernanda Ceschin, Suelen C A S Pereto, Luiz G S Ribas, Luis A V Bezerra, Jaqueline Dittrich, Tadeu Siqueira, André A Padial
Latin America embodies countries of special interest for ecological studies, given that areas with great value for biodiversity are located within their territories. This highlights the importance of an evaluation of ecological research in the Latin America region. We assessed the scientific participation of Latin American researchers in ecological journals, patterns of international collaboration, and defined the main characteristics of the articles. Although Latin American publications have increased in fourteen years, they accounted up to 9% of publications in Ecology...
October 23, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29044330/purification-and-characterization-of-a-thermostable-alkaline-cellulase-produced-by-bacillus-licheniformis-380-isolated-from-compost
#17
Évilin G DE Marco, Karina Heck, Emerson T Martos, Sueli T VAN DER Sand
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 of the 22 isolates that showed activity, isolate 380 showed the highest cellulase activity. Its ability to produce cellulase was evaluated in culture medium supplemented with carboxymethyl cellulose, microcrystalline cellulose, wheat straw, and rice husk...
October 16, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29044329/beneficial-effects-of-bio-controlling-agent-bacillus-cereus-ib311-on-the-agricultural-crop-production-and-its-biomass-optimization-through-response-surface-methodology
#18
Goutam Banerjee, Srikanth Gorthi, Pritam Chattopadhyay
Disease in agricultural field is a big problem that causes a massive loss in production. In this present investigation, we have reported a soil-borne bacterium Bacillus cereus IB311 which is antagonistic to plant pathogens (Pseudomonas syringae and Agrobacterium tumefaciens), and could make a substantial contribution to the prevention of plant diseases. To prove the practical application, the strain was directly applied in agricultural field. The results demonstrated that B. cereus IB311 has increased the production (20% and 26% in term of average pod number per plant, average seed number per pod, and seed yield per experimental plot) in ground nut (Arachis hypogaea var...
October 16, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29044328/carbon-dioxide-methanol-conversion-cycle-based-on-cascade-enzymatic-reactions-supported-on-superparamagnetic-nanoparticles
#19
Caterina G C Marques, Leandro H Andrade, Henrique E Toma
The conversion of carbon dioxide into important industrial feedstock is a subject of growing interest in modern society. A possible way to achieve this goal is by carrying out the CO2/methanol cascade reaction, allowing the recycle of CO2 using either chemical catalysts or enzymes. Efficient and selective reactions can be performed by enzymes; however, due to their low stability, immobilization protocols are required to improve their performance. The cascade reaction to reduce carbon dioxide into methanol has been explored by the authors, using, sequentially, alcohol dehydrogenase (ADH), formaldehyde dehydrogenase (FalDH), and formate dehydrogenase (FDH), powered by NAD+/NADH and glutamate dehydrogenase (GDH) as the co-enzyme regenerating system...
October 16, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29044327/generation-of-a-triple-fluorescent-mouse-strain-allows-a-dynamic-and-spatial-visualization-of-different-liver-phagocytes-in-vivo
#20
Brenda N Nakagaki, Maria A Freitas-Lopes, Érika Carvalho, Raquel Carvalho-Gontijo, Hortência M Castro-Oliveira, Rafael M Rezende, Denise C Cara, Mônica M Santos, Rodrigo Pestana Lopes, Bruna A David, Gustavo B Menezes
Resident and circulating immune cells have been extensively studied due to their almost ubiquitous role in cell biology. Despite their classification under the "immune cell department", it is becoming increasingly clear that these cells are involved in many different non-immune related phenomena, including fetus development, vascular formation, memory, social behavior and many other phenotypes. There is a huge potential in combining high-throughput assays - including flow cytometry and gene analysis - with in vivo imaging...
October 16, 2017: Anais da Academia Brasileira de Ciências
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