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Registros recuperados: 3
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Cellulase and xylanase productions by isolated Amazon Bacillus strains using soybean industrial residue based solid-state cultivation BJM
Heck,Júlio X.; Hertz,Plinho F.; Ayub,Marco A.Z..
In Brazil, a large amount of a fibrous residue is generated as result of soybean (Glycine max) protein production. This material, which is rich in hemicellulose and cellulose, can be used in solid state cultivations for the production of valuable metabolites and enzymes. In this work, we studied the bioconversion of this residue by bacteria strains isolated from water and soil collected in the Amazon region. Five strains among 87 isolated bacteria selected for their ability to produce either celullases or xylanases were cultivated on the aforementioned residue. From strain BL62, identified as Bacillus subtilis, it was obtained a preparation showing the highest specific cellulase activity, 1.08 UI/mg protein within 24 hours of growth. Concerning xylanase,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Solid-State cultivation; Cellulase; Xylanase; Soybean residue; Amazon biodiversity.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300005
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Bird diversity in the Serra do Aracá region, northwestern Brazilian Amazon: preliminary check-list with considerations on biogeography and conservation Rev. Bras. Zool.
Borges,Sérgio Henrique; Whittaker,Andrew; Almeida,Ricardo Afonso Machado de.
We inventoried the birds from Serra do Aracá region, state of Amazonas. The region encompasses a high diversity of vegetation types, including white sand forests and campinas, terra firme and flooded forests, montane forests and tepuis. We recorded 416 bird taxa in 69 families through captures with mist nets, tape recording of bird voices, and collection of voucher specimens. A large proportion of them (61%) were recorded in a single vegetation type. Qualitative estimates suggest that approximately 580 bird species occur in the region. The avifauna of the Aracá region has a mixed biogeographic composition, with species typical of both margins of the Rio Negro occurring sympatrically. Additionally, species whose distributions are restricted to three areas...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon biodiversity; Amazonas; Rio Branco; Rio Negro; Tepuis; White sand campinas.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702014000400006
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Larvicidal effect of hydroethanolic extract from the leaves of Acmella oleracea L. R. K. Jansen in Aedes aegypti and Culex quinquefasciatus. Repositório Alice
ARAÚJO, I. F. de; ARAÚJO, P. H. F. de; FERREIRA, R. M. A.; SENA, I. D. S.; LIMA, A. L.; CARVALHO, J. C. T.; FERREIRA, I. M.; SOUTO, R. N. P..
Mosquitoes, such as Aedes aegypti and Culex quinquefasciatus, are important vectors of diseases, such as dengue fever, chikungunya fever, Zika virus, and filariasis, and these diseases are public health problems. The present study was carried out to evaluate the larvicidal activity of the hydroethanolic extract from leaves of Acmella oleracea leaves against 3rd instar larvae of the Ae. aegypti dengue vector and the Cx. quinquefasciatus filariasis vector. The hydroethanolic extract caused significant mortality in Ae. aegypti and Cx. quinquefasciatus. After 24 h of exposure to the extract, it was possible to establish the LC50 values for the extract: 11.41 ppm for Ae. aegypti and LC50 32.40 ppm for Cx. quinquefasciatus. The hydroethanolic extract from leaves...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Acmella oleracea; Jambu; Amazon biodiversity; Larvicidal activity; Biodiversidade; Espécie Nativa.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1092996
Registros recuperados: 3
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