Optimization of laccase production by Botryosphaeria sp. in the presence of veratryl alcohol by the response-surface method

Vasconcelos, Ana Flora Dalberto; Barbosa, Aneli M.; Dekker, Robert F. H.; Scarmínio, Ieda Spacino; Rezende, Maria Inês

doi:10.1016/s0032-9592(00)00149-7

Cited by 123 publications

(80 citation statements)

References 20 publications

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“…A solid understanding of the influence of culture conditions is required to maximize Lac production by selected fungi, as production has been demonstrated to be closely dependent on medium and cultivation conditions (D`Souza-Ticlo et al 2009;Kiiskinen et al 2004;Vasconcelos et al 2000).…”

Section: Influence Of Culture Conditions On Laccase Production Growtmentioning

confidence: 99%

Influence of Culture Conditions on Laccase Production, Growth, and Isoenzymes Patterns in Native White Rot Fungi from the Misiones Rainforest (Argentina)

et al. 2013

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aMany biotechnological processes pursuing sustainability aim for effective, inexpensive, and environmentally friendly alternatives to replace conventional practices. Laccase-containing lignocellulolytic systems from white rot fungi have been shown to be an efficient enzymatic tool for ecofriendly biological treatments. One objective of the biotechnological enzymes production process is to find optimum growing and secretion conditions for a selected fungus. In this work, different fungi isolated from the Misiones rainforest (Coriolus versicolor f. antarcticus BAFC-266, Ganoderma applanatum strain F, Phlebia brevispora BAFC-633, and Pycnoporus sanguineus BAFC-2126) were incubated at different temperatures (25, 29, 33 °C) and pH values (3.5, 4.5, 5.5) under static conditions for 7, 10, and 14 days to evaluate their growing ability and laccase (Lac) production. Results revealed specific favorable conditions for growth and protein secretion depending on the fungus under consideration, making it necessary to adjust these parameters for each particular case. The combined effect of these cultivation parameters showed a marked influence on the secreted Lac activity by P. brevispora BAFC 633, with the highest activity (~ 240 U/l) at 29 ºC and pH 4.5 at the 10 th day of cultivation. The presence of Lac isoenzymes also depended on the pH, temperature, and time of cultivation for the different tested fungi.

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Section: Influence Of Culture Conditions On Laccase Production Growtmentioning

confidence: 99%

Influence of Culture Conditions on Laccase Production, Growth, and Isoenzymes Patterns in Native White Rot Fungi from the Misiones Rainforest (Argentina)

et al. 2013

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“…Cuando son cercanos los valores de R (coeficiente de correlación múltiple) a 1; mejor será la correlación entre los valores experimentales y predichos (Wang y Lu, 2005;Vasconcelos et al, 2000).…”

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Stevia’s (Stevia rebaudiana B.) degree of acceptability on a chamomile (Matricaria chamomilla L.) drink infusion

et al. 2012

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Grado de aceptabilidad de ABSTRACTStevia's (Stevia rebaudiana B.) effect of infusion time and concentration (1-4 minutes and 1-3 g/300 mL respectively) degree of acceptability in a hot drink of chamomile (Matricaria chamomilla L.) was evaluated. The Response Surface Methodology with a Rotational Central Composite Design (DCCR) through 11 trials was used as the experimental design. Stevia leaves were dried in an oven at 40 °C for 24 hours. Subsequently they were subjected to hand grinding, packaged in various proportions in small filter bags and subjected again to infusion at different times in a chamomile drink. The evaluation of the degree of acceptability was carried out through a sensory panel of 40 panelists chosen at random. It was found that the degree of acceptability presented a statistically significant second-order mathematical model (p<0.05). The results showed that to obtain a Stevia's greater acceptability in a chamomile drink, the optimal ranges in terms of time of infusion and concentration are 120 -160 seconds and 1.8 -2.2 g/300 mL respectively.

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“…Several inducers have been applied to increase yields of laccase: copper, phenols, 2,5-xylidine and related compounds in T. versicolor (Collins & Dobson 1997, Tavares et al 2005, Kollmann et al 2005, Domínguez et al 2007, Ryan et al 2007), ethanol in P. cinnabarinus (Lomascolo et al 2003, Meza et al 2006, aromatic compounds including veratryl alcohol in Botryosphoraeria sp. (Vasconcelos et al 2000, Dekker & Barbosa 2001, copper and phenolic compounds in Panus tigrinus (Chernykh et al 2005), copper, cotton stalk extract, dimethyl sulphoxide, and the synthetic substrate ABTS [2,2'-azino-di-(3-ethylbenzothialozin-6-sulphonic acid)] in P. ostreatus (Ardon et al 1996, Hou et al 2004, Shah et al 2006, and copper and lignin-related compounds in Pleurotus pulmonarius . Complex substrates such as sugar cane bagasse and lignocellulosic material such as wood and peanut shells have also been shown to be effective in various fungi (D 'Souza et al 1999, Arora & Gill 2001, Linke et al 2005, Makela et al 2006.…”

Section: Production Of Native Laccases In Pure Culturementioning

confidence: 99%

Wood production, wood technology, and biotechnological impacts

Kües¹

2007

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Optimization of laccase production by Botryosphaeria sp. in the presence of veratryl alcohol by the response-surface method

Cited by 123 publications

References 20 publications

Influence of Culture Conditions on Laccase Production, Growth, and Isoenzymes Patterns in Native White Rot Fungi from the Misiones Rainforest (Argentina)

Influence of Culture Conditions on Laccase Production, Growth, and Isoenzymes Patterns in Native White Rot Fungi from the Misiones Rainforest (Argentina)

Stevia’s (Stevia rebaudiana B.) degree of acceptability on a chamomile (Matricaria chamomilla L.) drink infusion

Wood production, wood technology, and biotechnological impacts

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