Polyoxyethylene stimulates lignin peroxidase production inPhanerochœte chrysosporium

Katić, Miroslav; Frantar, J.; Grgić, Irena; Podgornik, Helena; Perdih, Andrej

doi:10.1007/bf02816381

Cited by 12 publications

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References 12 publications

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“…Our tests confirm previous conclusions (Katic˘ et al 1998) that PEG stimulates the appearance of high LiP activity (up to 60 times higher than in the control culture), especially if its molecular weight is above 1000 (Fig. 1).…”

Section: Discussionsupporting

confidence: 92%

“…PEG 900 did not show as good stimulatory properties as higher PEGs; LiP activity was lower and it appeared 2–3 days later. Diethylene glycol (DEG) was not a good stimulator, as was expected from previous results (Katic˘ et al . 1998).…”

Section: Resultssupporting

confidence: 50%

“…The optimal concentration of Tweens to induce the LiP activity was around 1 g l −1 (Jäger et al . 1985; Katic˘ et al 1998). The molecular weight of the PEG moiety contained in it is around 1000.…”

Section: Discussionmentioning

confidence: 99%

“…Oleic acid (Asther and Corrieu, 1987) and some phospholipids (Asther et al 1988; Capdevila et al 1990) have a similar effect. Tween 80 [poly(ethylene glycol)–20‐sorbitan monooleate] has been mostly used as the stimulator of LiP production (Linko 1992), although the addition of any Tween causes the appearance of markedly higher LiP activity (Katic˘ et al . 1998).…”

Section: Introductionmentioning

confidence: 99%

“…Besides Tween 80, also the poly(ethylene glycol)–sorbitan moiety of Tween 80, a poly(ethylene glycol) ester, none of the examined poly(ethylene glycol) alkyl ethers enhance LiP production in agitated culture of P. chrysosporium (Les˘tan et al 1993). The active moiety of these compounds is poly(ethylene glycol) (PEG); it is distributed between the biomass and the culture fluid, and its quantity declines approximately linearly during cultivation (Katic˘ et al 1998; Kos and Perdih 1999). In the culture filtrate, PEGs themselves reduce the activity of LiP enzymes and the decrease in the activity of LiP enzymes is greater with the higher molecular weight of PEG, compared at the same number of molecules (Gorjup et al 1999).…”

Section: Introductionmentioning

confidence: 99%

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Stimulation of ligninolytic enzyme production in Phanerochaete chrysosporium by polyoxyalkanes

Grgić

Perdih

2003

J Appl Microbiol

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I . G R G I C A N D A . P E R D I H . 2003.Aims: Poly(ethylene glycol) (PEG) and some substances similar to PEG in chemical structure were tested as stimulators of ligninolytic enzyme production in shaken culture of Phanerochaete chrysosporium. Methods and Results: The substances that caused high enzymatic activity were linear polymers [poly(ethylene glycol), poly(propylene glycol), poly(butylene glycol) and poly(vinyl alcohol)] and cyclic polymers (crown ether). They can have terminal groups other than -OH [PEG (di)methyl ether, PEG sulphate, PEG derivative with the amino group and xanthate]. The maximum lignin peroxidase activities were compared with the surface pressure caused by the stimulator. Addition of polymers composed of charged monomer units did not increase the enzymatic activity and the fungi did not grow at all on addition of polymers having a fixed positive charge. Conclusions: Lignin peroxidase activity was increased after the addition of polymers with uncharged monomer units. It was higher and its maximum was reached in a shorter time on addition of polymers with higher molecular weights. Significance and Impact of Study: Beside Tweens there are several polymers that stimulate ligninolytic enzyme production in shaken culture of P. chrysosporium. Their characteristics are: similarity to PEG in chemical structure, having uncharged monomer units and high molecular weight.

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Section: Discussionsupporting

confidence: 92%

Section: Resultssupporting

confidence: 50%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Stimulation of ligninolytic enzyme production in Phanerochaete chrysosporium by polyoxyalkanes

Grgić

Perdih

2003

J Appl Microbiol

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Polyoxirane distribution in aPhanerochœte chrysosporium culture

Kos

Perdih

1999

Folia Microbiol

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Decolorization of synthetic textile dyes by lignin peroxidase ofPhanerochaete chrysosporium

Verma

Madamwar

2002

Folia Microbiol

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Neem hull waste (containing a high amount of lignin and other phenolic compounds) was used for lignin peroxidase production by Phanerochaete chrysosporum under solid-state fermentation conditions. Maximum decolorization achieved by partially purified lignin peroxidase was 80% for Porocion Brilliant Blue HGR, 83 for Ranocid Fast Blue, 70 for Acid Red 119 and 61 for Navidol Fast Black MSRL. The effects of different concentrations of veratryl alcohol, hydrogen peroxide, enzyme and dye on the efficiency of decolorization have been investigated. Maximum decolorization efficiency was observed at 0.2 and 0.4 mmol/L hydrogen peroxide, 2.5 mmol/L veratryl alcohol and pH 5.0 after a 1-h reaction, using 50 ppm of dyes and 9.96 mkat/L of enzyme.

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Polyoxyethylene stimulates lignin peroxidase production inPhanerochœte chrysosporium

Cited by 12 publications

References 12 publications

Stimulation of ligninolytic enzyme production in Phanerochaete chrysosporium by polyoxyalkanes

Stimulation of ligninolytic enzyme production in Phanerochaete chrysosporium by polyoxyalkanes

Polyoxirane distribution in aPhanerochœte chrysosporium culture

Decolorization of synthetic textile dyes by lignin peroxidase ofPhanerochaete chrysosporium

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