2016
DOI: 10.1590/1678-457x.15816
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Identifying yeast isolated from spoiled peach puree and assessment of its batch culture for invertase production

Abstract: The identification of yeasts isolated from spoiled Jubileu peach puree using the API 20C AUX method and a commercial yeast as witness were studied. Subsequently, the yeast's growth potential using two batch culture treatments were performed to evaluate number of colonies (N), reducing sugar concentration (RS), free-invertase (FI), and culture-invertase activity (CI). Stock cultures were maintained on potato dextrose agar (PDA) slants at 4 °C and pH 5 for later use for batch-culture (150 rpm) at 30°C for 24 h, … Show more

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Cited by 5 publications
(3 citation statements)
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“…To ensure the experiment's accuracy, selection of 3-5 generations of cells of well-grown is for the experiment. 5: Strictly complying with aseptic operation to avoid contamination (Ferreira et al, 2016).…”
Section: Discussionmentioning
confidence: 99%
“…To ensure the experiment's accuracy, selection of 3-5 generations of cells of well-grown is for the experiment. 5: Strictly complying with aseptic operation to avoid contamination (Ferreira et al, 2016).…”
Section: Discussionmentioning
confidence: 99%
“…O microrganismo usado neste experimento foi isolado a partir de resíduo de pêssego e identificado como C. guilliermondii pelo sistema API 20C AUX, com 95% de exatidão e perfil numérico 6776277 (FERREIRA et al, 2016). Os extratos enzimáticos foram obtidos usando o método de extração com bicarbonato de sódio segundo Ferreira et al (2018) e a purificação destes foi feita através de precipitação das proteínas com acetona seguido de diálise.…”
Section: Metodologiaunclassified
“…Outra levedura, a Candida utilis, também apresenta duas isoformas (GUIMARÃES et al, 2007). Em purê de pêssego e seus resíduos do processamento foram identificados e quantificados vários micro-organismos destacando-se a levedura S. cerevisiae (LOPEZ et al 2014) com potencial para produção de invertase (FERREIRA et al 2016). O objetivo desse trabalho foi estudar o efeito do pH, da temperatura e concentração de sacarose na atividade da invertase de C. guilliermondii (ICg) extraída de resíduo de pêssego e recuperada por precipitação com acetona bem como identificar as isoenzimas por eletroforese.…”
Section: Introductionunclassified