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| FONSECA,María Isabel; ZAPATA,Pedro Darío; VILLALBA,Laura Lidia; FARIÑA,Julia Inés. |
| This research aimed to evaluate the potential of several native white rot fungi (WRF) isolated from subtropical environments of Misiones (Argentina) to produce different ligninolytic enzymes. Coriolus versicolor f. antarcticus BAFC 266, Pycnoporus sanguineus BAFC 2126 and Phlebia brevispora BAFC 633 showed the highest phenoloxidase activity. Ganoderma applanatum strain E, P. sanguineus BAFC 2126 and P. brevispora BAFC 633 revealed marked laccase and peroxidase activity. C. versicolor f. antarcticus, G. applanatum (strain A) and Trametes villosa, gave high positive reactions with 2,6-dimethoxyphenol oxidation at the lowest tested pH. C. versicolor f. antarcticus, G. applanatum strains D and F, T. elegans BAFC 2127and T. villosa, showed the highest manganese... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oxidative enzymes; Screening; White-rot fungi. |
| Ano: 2015 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2015000100006 |
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| SANTOS,Mirelle Nayana de Sousa; LIMA,Paula Cristina Carvalho; ARAUJO,Fernanda Ferreira de; ARAÚJO,Nicolas Oliveira de; FINGER,Fernando Luiz. |
| Abstract One of the major problems affecting potatoes quality on stored is the susceptibility to enzymatic browning, which occurs mainly after wounds during the harvest, at postharvest handling and by aging, leading to the development of dark color compounds. Enzymatic browning is associated with the action of polyphenoloxidases (PPO) and peroxidases (POD), which use phenolic compounds and oxygen as substrates. The products of these enzymes cause undesirable changes of color and flavor of processed potato products. The present study aimed to evaluate some kinetic properties based to optimum pH and reaction temperature, and to determine changes on activity of potato tubers PPO and POD treated with sprouting suppressors compounds menthol and eugenol. For... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum tuberosum; Essential oils; Oxidative enzymes; Postharvest storage. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005024103 |
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| Bekheta,M.A.; Abdelhamid,M.T.; El-Morsi,A.A.. |
| Changes in the activities of oxidative enzymes (indole acetic acid oxidase, peroxidase and catalase), endogenous hormones (gibberellic acid (GA3), indole acetic acid (IAA), abscisic acid (ABA) and cytokinins (AsZeatin), photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids), total carbohydrates, total soluble sugars, amino acid proline and vegetative growth parameters were used as indicators to explain the physiological role of the growth retardant prohexadione-calcium on Vicia faba seedlings 40 days after sowing under salinity stress for 30 days. The obtained results show that soaking faba bean seeds prior to sowing at different concentrations of prohexadione-calcium (0, 10, 20 and 30 ppm) significantly increased the activities of indole... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Endogenous hormones; Faba bean; Growth retardant; Oxidative enzymes; Salinity. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582009000400015 |
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