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Influence of supercritical carbon dioxide on the activity and conformational changes of α-amylase, lipase, and peroxidase in the solid state using white wheat flour as an example
Milena Ivanović, Željko Knez, Maja Leitgeb, 2023, original scientific article

Keywords: enzyme inactivation, supercritical carbon dioxide, a-amilaze, lipase, antioxidants, horseradish peroxidase, structural changes, CD spectroscopy
Published in DKUM: 22.04.2024; Views: 183; Downloads: 8
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Bacillus megaterium (AUM72) - mediated induction of defense related enzymes to enhance the resistance of turmeric (Curcuma longa L.) to Pythium aphanidermatum causing rhizome rot
U. Boominathan, Palanivel Karpagavinayaga Sivakumaar, 2013, original scientific article

Keywords: Bacillus megaterium, Phythium aphanidermatum, induced resistance, peroxidase
Published in DKUM: 30.12.2015; Views: 1573; Downloads: 27
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Decolorization of textile dyes by whole cultures of Ischnoderma Resinosum and by purified laccase and Mn-peroxidase
Vanja Kokol, Aleš Doliška, Ivana Eichlerová, Petr Baldrian, František Nerud, 2007, original scientific article

Abstract: Ischnoderma resinosum produced extracellular ligninolytic enzymes laccase and MnP. The activity of laccase achieved the maximum on day 10 (29.4 U L-1), the MnP on day 14 (34.5 U L-1). Laccase and Mn-peroxidase were purified from the culture liquid using gel permeation and ion-exchange chromatographies. Purified Mn-peroxidase performed decolorization of all textile dyes tested (Reactive Black 5, Reactive Blue 19, Reactive Red 22 and Reactive Yellow 15). Laccase was inactive with Reactive Black 5 and Reactive Red 22, while all dyes were decolorized after addition of the redox mediators violuric acid (VA) and hydroxybenzotriazole (HBT). The culture liquid from I. resinosum cultures was also able to decolorize all dyes as well as the synthetic dyebaths in the presence of VA and HBT. The highest decolorization rates were detected in acidic pH (3-4).
Keywords: Ischnoderma resinosum, Basidiomycetes, Laccase, Mn-peroxidase, Textile dyes, ligninolytic enzymes
Published in DKUM: 01.06.2012; Views: 1971; Downloads: 89
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