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analysis of the Presence of Clostridium perfringens in Feed and Raw Material Used in Poultry Production

Food and Nutrition Sciences 2014年第7期5卷 614-617页

作者： Eliana Neire Castiglioni Tessari ana Lúcia S. Paschoal Cardoso ana maria iba kanashiro Greice F. Zanatta Stoppa Renato Luis Luciano Antonio Guilherme Machado de Castro Instituto Biológico—Centro Avancado de Pesquisa Tecnológica do Agronegócio Avícola DescalvadoBrazil

Microbiological control of feeds used in industrial poultry production has been increasingly important due to the demands of the market for food safety, as well as the need to ensure better quality of the digestive system of the birds. Microbiological analysis carried out in raw material used in feed production, especially feather, meat, and organ meal, has shown contamination by Clostridium perfringens. In order to study the presence of Clostridium perfringens, a total of 354 samples of feed and raw material were analyzed from January 2011 to July 2013. Samples came from four companies located in the state of São Paulo, with a total of 166 samples of meat meal, 24 samples of feather meal, 43 samples of organ meal, and 121 samples of feed. The following results were obtained: 88 (53%), 15 (62.5%), 16 (37.21%), and 23 (19%) samples were positive for Clostridium perfringens in each group of samples, respectively, with counts ranging from 2.0 × 102 to 7.0 × 103 CFU/g.

关键词： Necrotic Enteritis Clostridium perfringens Feed

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In Vitro Propagation and Conservation of Zeyheria montana Mart:An Endangered Medicinal Plant

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American Journal of Plant Sciences 2013年第3期4卷 519-523页

作者： Bianca Waléria Bertoni Rita maria Moraes Laura Lemo Previdelli Paulo Sérgio Pereira Suzelei de Castro Franca ana maria Soares Pereira UNAERP—Unidade de Biotecnologia de Plantas Medicinais Ribeirao PretoBrasil National Center for Natural Products Research The University of MississippiOxfordUSA

Roots of Zeyheriamontana, a species native to the savanna (Cerrado) region of central Brazil, produce lapachol, a naphthoquinone with anticancer activity. Lapachol is also the precursor of β-lapachone, a novel drug candidate for preventive and adjuvant cancer therapies. The leaves of Z. montana are a renewable source of ursolic acid and oleanoic acid, compounds known for their anticancer, antioxidant and antimicrobial properties. The potential prophylactic use of β-lapachone, as well as the medicinal properties of ursolic acid, highlights the importance of this study on ***’s germplasm conservation. Multiple shoots were induced on Woody Plant media with supplemented 0.1 mg·L-1 of thidiazuron (TDZ). Rooting was promoted on half strength WP (Woody Plant media containing 1.0 mg·L-1 of Indolbutiric acid-iba). Plantlet acclimatization to ex-vitro condition was done at a 70% success rate using different substrates. It was possible to store ***’s elite germplasm using in vitro cultures of media containing 2% sucrose plus 4% sorbitol for six months without subcultures.

关键词： Cerrado Bignoniaceae Micropropagation Germplasm Storage Lapachol and Triterpenes

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