PMID- 21210103 OWN - NLM STAT- MEDLINE DCOM- 20110620 LR - 20131121 IS - 1432-0614 (Electronic) IS - 0175-7598 (Linking) VI - 90 IP - 1 DP - 2011 Apr TI - Pycnoporus laccase-mediated bioconversion of rutin to oligomers suitable for biotechnology applications. PG - 97-105 LID - 10.1007/s00253-010-3075-4 [doi] AB - The Pycnoporus fungi are white-rot basidiomycetes listed as food- and cosmetic-grade microorganisms. Three high redox potential laccases from Pycnoporus coccineus and Pycnoporus sanguineus were tested and compared, with the commercial Suberase(R) as reference, for their ability to synthesise natural active oligomers from rutin (quercetin-3-rutinoside, one of the best-known naturally occurring flavonoid glycosides). The aim of this work was to develop a process with technical parameters (solvent, temperature, reaction time and raw materials) that were easy to scale up for industrial production and compatible with cosmetic and pharmaceutical formulation guidelines. The aqueous mixture of glycerol/ethanol/buffer described in this study met this requirement and allowed the solubilisation of rutin and its oxidative bioconversion into oligomers. The four flavonoid oligomer mixtures synthesised using laccases as catalysts were analysed by high performance liquid chromatography-diode array detection-negative electrospray ionisation-multistage mass spectrometry. Their chromatographic elution profiles were compared and 16 compounds were characterised and identified as dimers and trimers of rutin. The oligorutins were different in Suberase(R) and Pycnoporus laccase reaction mixtures. They were evaluated for their antioxidant, anti-inflammatory and anti-ageing activities on specific enzymatic targets such as cyclooxygenase (COX-2) and human matrix metalloproteinase 3 (MMP-3). Expressed in terms of IC(50), the flavonoid oligomers displayed a 2.5- to 3-fold higher superoxide scavenging activity than monomeric rutin. Pycnoporus laccase and Suberase(R) oligorutins led to an inhibition of COX-2 of about 35% and 70%, respectively, while monomeric rutin showed a near-negligible inhibition effect, less than about 10%. The best results on MMP-3 activity were obtained with rutin oligomers from P. sanguineus IMB W006-2 laccase and Suberase(R) with about 70-75% inhibition. FAU - Uzan, Eva AU - Uzan E AD - UMR 1163 INRA de Biotechnologie des Champignons Filamenteux, ESIL, Case 925, 163 Avenue de Luminy, 13288, Marseille Cedex 09, France. FAU - Portet, Benedicte AU - Portet B FAU - Lubrano, Christian AU - Lubrano C FAU - Milesi, Sandrine AU - Milesi S FAU - Favel, Anne AU - Favel A FAU - Lesage-Meessen, Laurence AU - Lesage-Meessen L FAU - Lomascolo, Anne AU - Lomascolo A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110106 PL - Germany TA - Appl Microbiol Biotechnol JT - Applied microbiology and biotechnology JID - 8406612 RN - 0 (Antioxidants) RN - 0 (Enzyme Inhibitors) RN - 0 (Fungal Proteins) RN - 0 (Matrix Metalloproteinase Inhibitors) RN - 5G06TVY3R7 (Rutin) RN - EC 1.10.3.2 (Laccase) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - EC 1.14.99.1 (PTGS2 protein, human) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM MH - Antioxidants/chemistry/metabolism/pharmacology MH - Biotechnology MH - Biotransformation MH - Cyclooxygenase 2/metabolism MH - Enzyme Inhibitors/chemistry/metabolism/pharmacology MH - Fungal Proteins/*metabolism MH - Humans MH - Laccase/*metabolism MH - Matrix Metalloproteinase 3/metabolism MH - Matrix Metalloproteinase Inhibitors MH - Molecular Structure MH - Pycnoporus/chemistry/enzymology/*metabolism MH - Rutin/chemistry/*metabolism/pharmacology EDAT- 2011/01/07 06:00 MHDA- 2011/06/21 06:00 CRDT- 2011/01/07 06:00 PHST- 2010/10/12 00:00 [received] PHST- 2010/12/10 00:00 [accepted] PHST- 2010/12/02 00:00 [revised] PHST- 2011/01/07 06:00 [entrez] PHST- 2011/01/07 06:00 [pubmed] PHST- 2011/06/21 06:00 [medline] AID - 10.1007/s00253-010-3075-4 [doi] PST - ppublish SO - Appl Microbiol Biotechnol. 2011 Apr;90(1):97-105. doi: 10.1007/s00253-010-3075-4. Epub 2011 Jan 6.