PhanerochaeteV1, Main, Exploration, bibRecord, 000692

Extraction of manganese peroxidase produced by Lentinula edodes.

Identifieur interne : 000692 ( Main/Exploration ); précédent : 000691; suivant : 000693

Extraction of manganese peroxidase produced by Lentinula edodes.

Auteurs : E M Silva [Brésil] ; S F Martins ; A M F. Milagres

Source :

Bioresource technology [ 0960-8524 ] ; 2008.

RBID : pubmed:17583498

Descripteurs français

KwdFr :
- Biomasse (MeSH), Champignons shiitake (enzymologie), Masse moléculaire (MeSH), Peroxidases (biosynthèse), Peroxidases (composition chimique), Peroxidases (isolement et purification), Spécificité du substrat (MeSH).
MESH :
- biosynthèse : Peroxidases.
- composition chimique : Peroxidases.
- enzymologie : Champignons shiitake.
- isolement et purification : Peroxidases.
- Biomasse, Masse moléculaire, Spécificité du substrat.

English descriptors

KwdEn :
- Biomass (MeSH), Molecular Weight (MeSH), Peroxidases (biosynthesis), Peroxidases (chemistry), Peroxidases (isolation & purification), Shiitake Mushrooms (enzymology), Substrate Specificity (MeSH).
MESH :
- chemical , biosynthesis : Peroxidases.
- chemical , chemistry : Peroxidases.
- chemical , isolation & purification : Peroxidases.
- enzymology : Shiitake Mushrooms.
- Biomass, Molecular Weight, Substrate Specificity.

Abstract

Lentinula edodes, commonly called shiitake, is considered a choice edible mushroom with exotic taste and medicinal quality. L. edodes grows very well and produces a range of enzymes when cultivated on eucalyptus residues. Development of appropriate experimental procedures for recovery and determination of enzymes became a widely important cash crop. In this work, enzymes produced by L. edodes were extracted using different pH buffer and determined regarding peroxidases and proteases. Lignin peroxidase (LiP) was not detected in the extracts based on veratryl alcohol or azure B oxidation. Proteases were very low while Mn-peroxidases (MnP) predominated. The optimal pH for MnP recovery was 5.0, under agitation at 25 degrees C. The oxidation of phenol red decreased after dark-colored small compounds or ions were eliminated by dialysis. The extract of L. edodes contained components of high molecular weight, such as proteases or high polyphenol, that could be involved in the LiP inactivation. L. edodes sample previously submitted to dialysis was also joined to LiP of Phanerochaete chrysosporium and a total inhibition of LiP was observed.

DOI: 10.1016/j.biortech.2007.04.064
PubMed: 17583498

Affiliations:

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Le document en format XML

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<term>Peroxidases (isolation & purification)</term>
<term>Shiitake Mushrooms (enzymology)</term>
<term>Substrate Specificity (MeSH)</term>
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<term>Peroxidases (biosynthèse)</term>
<term>Peroxidases (composition chimique)</term>
<term>Peroxidases (isolement et purification)</term>
<term>Spécificité du substrat (MeSH)</term>
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<front><div type="abstract" xml:lang="en">Lentinula edodes, commonly called shiitake, is considered a choice edible mushroom with exotic taste and medicinal quality. L. edodes grows very well and produces a range of enzymes when cultivated on eucalyptus residues. Development of appropriate experimental procedures for recovery and determination of enzymes became a widely important cash crop. In this work, enzymes produced by L. edodes were extracted using different pH buffer and determined regarding peroxidases and proteases. Lignin peroxidase (LiP) was not detected in the extracts based on veratryl alcohol or azure B oxidation. Proteases were very low while Mn-peroxidases (MnP) predominated. The optimal pH for MnP recovery was 5.0, under agitation at 25 degrees C. The oxidation of phenol red decreased after dark-colored small compounds or ions were eliminated by dialysis. The extract of L. edodes contained components of high molecular weight, such as proteases or high polyphenol, that could be involved in the LiP inactivation. L. edodes sample previously submitted to dialysis was also joined to LiP of Phanerochaete chrysosporium and a total inhibition of LiP was observed.</div>
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<Abstract><AbstractText>Lentinula edodes, commonly called shiitake, is considered a choice edible mushroom with exotic taste and medicinal quality. L. edodes grows very well and produces a range of enzymes when cultivated on eucalyptus residues. Development of appropriate experimental procedures for recovery and determination of enzymes became a widely important cash crop. In this work, enzymes produced by L. edodes were extracted using different pH buffer and determined regarding peroxidases and proteases. Lignin peroxidase (LiP) was not detected in the extracts based on veratryl alcohol or azure B oxidation. Proteases were very low while Mn-peroxidases (MnP) predominated. The optimal pH for MnP recovery was 5.0, under agitation at 25 degrees C. The oxidation of phenol red decreased after dark-colored small compounds or ions were eliminated by dialysis. The extract of L. edodes contained components of high molecular weight, such as proteases or high polyphenol, that could be involved in the LiP inactivation. L. edodes sample previously submitted to dialysis was also joined to LiP of Phanerochaete chrysosporium and a total inhibition of LiP was observed.</AbstractText>
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Extraction of manganese peroxidase produced by Lentinula edodes.

Extraction of manganese peroxidase produced by Lentinula edodes.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki