2006
DOI: 10.1590/s0044-59672006000300002
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Seleção de leveduras da Região Amazônica para produção de protease extracelular

Abstract: RESUMOO objetivo deste trabalho foi identificar 50 leveduras isoladas a partir de diferentes substratos da Região Amazônica e selecionar uma espécie de maior atividade proteolítica. Entre as 26 espécies identificadas predominaram Candida aquatica (12%) e Candida tropicalis (10%). A fermentação submersa foi realizada em Extrato de Malte suplementado com gelatina 1%, Candida intermedia foi a que expressou maior atividade proteolítica, halo = 25 mm e 273 U/mL, crescimento máximo a 30 ºC, viabilidade celular 6,2 x… Show more

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Cited by 10 publications
(9 citation statements)
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“…Strains were sub-cultured on Sabouraud dextrose agar plates, incubated at 30 • C for 72 h and a calibrated cellular suspension (A 600 = 0.1, corresponding to an average cell concentration of 10 6 cells/ml) was used to inoculate a 250 ml Erlenmeyer flask containing 50 ml of culture medium (1.5% (w/v) malt extract supplemented with 1.0% (w/v) gelatin), and grown for 72 h at 30 • C in an orbital incubator shaker with 140 rpm [21]. 120 l samples of cell-free supernatant (clarified by centrifugation at 12,000 × g and 4 • C for 5 min) were placed into cup-plates (8 mm Ø) containing 1.0% (w/v) gelatin and 1.5% (w/v) agar and carried out for the screening of collagenase.…”
Section: Screening Of Candida Strains As Collagenase Producersmentioning
confidence: 99%
“…Strains were sub-cultured on Sabouraud dextrose agar plates, incubated at 30 • C for 72 h and a calibrated cellular suspension (A 600 = 0.1, corresponding to an average cell concentration of 10 6 cells/ml) was used to inoculate a 250 ml Erlenmeyer flask containing 50 ml of culture medium (1.5% (w/v) malt extract supplemented with 1.0% (w/v) gelatin), and grown for 72 h at 30 • C in an orbital incubator shaker with 140 rpm [21]. 120 l samples of cell-free supernatant (clarified by centrifugation at 12,000 × g and 4 • C for 5 min) were placed into cup-plates (8 mm Ø) containing 1.0% (w/v) gelatin and 1.5% (w/v) agar and carried out for the screening of collagenase.…”
Section: Screening Of Candida Strains As Collagenase Producersmentioning
confidence: 99%
“…Após esse período, um padrão de coloração vermelho -fuccina do meio indicava resultado positivo (Da Silva, 1999;Neves, 2006).…”
Section: Ureasesunclassified
“…As culturas que apresentaram crescimento após o período de incubação foram consideradas como patogênicas (Silva et al, 1999;Neves et al, 2006).…”
Section: Crescimento a 37°cunclassified
“…Após esse período, um padrão de coloração vermelho -fuccina do meio indicava resultado positivo (Da Silva, 1999;Neves, 2006). Anni Kelle Serrão de Lima et al…”
Section: Ureasesunclassified