|
|
|
|
|
| Nascimento,Rodrigo Pires do; Alves Junior,Nelson; Coelho,Rosalie Reed Rodrigues. |
| Brewer's spent grain and corn steep liquor or yeast extract were used as the sole organic forms for proteinase production by Streptomyces malaysiensis in submerged fermentation. The influence of the C and N concentrations, as well as the incubation periods, were assessed. Eight proteolytic bands were detected through gelatin-gel-electrophoresis in the various extracts obtained from the different media and after different incubation periods, with apparent molecular masses of 20, 35, 43, 50, 70, 100, 116 and 212 kDa. The results obtained suggest an opportunity for exploring this alternative strategy for proteinases production by actinomycetes, using BSG and CSL as economically feasible substrates. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Streptomyces malaysiensis; Brewer's spent grains; Corn steep liquor; Proteinases; Submerged fermentation. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400020 |
| |
|
|
| Silva,Lidiane Roberta Cruz da; Souza,Odacy Camilo de; Fernandes,Maria José dos Santos; Lima,Débora Maria Massa; Coelho,Rosalie Reed Rodrigues; Souza-Motta,Cristina Maria. |
| Litopenaeus vannamei, which is the most common shrimp species cultivated in the northeast of Brazil, is very susceptible to microbial diseases, and this consequently affects productivity. There are reports of bacteria, viruses and protozoa in these shrimp, but not fungi. This study aims to isolate and identify fungi present in shrimp Litopenaeus vannamei, and in their nursery waters, at two breeding farms in Brazil. The pathogenic potential of the isolates was assessed through the qualitative detection of proteases and aflatoxin B production. The 146 isolated fungi comprised 46 species. Aspergillus, Penicillium and Furarium were the three most relevant genera and Aspergillus flavus was the predominant species with a total of 33 isolates. Most of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shrimp; Fungi; Water; Protease; Aflatoxin B. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100007 |
| |
|
| |
|
|
|
