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Isolation and application of phenolic compounds as antifungal agents with particular reference to alk(en)ylresorcinols from rye bran

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Isolation and application of phenolic compounds as antifungal agents with particular reference to alk(en)ylresorcinols from rye bran (Volume 4)

Hannes Patzke (Author)

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ISBN-13 (Hard Copy) 9783736998407
ISBN-13 (eBook) 9783736988408
Language English
Page Number 118
Edition 1.
Book Series Schriftenreihe der Professur für Molekulare Lebensmitteltechnologie
Volume 4
Publication Place Göttingen
Place of Dissertation Bonn
Publication Date 2018-08-28
General Categorization Dissertation
Departments Food chemistry
Keywords Alkylresorcine, Ferulasäure, Phenole, natürlicher Pflanzenschutz, Roggenkleie, antifungale Aktivität rye, wheat, Secale cereale, alkylresorcinols, alk(en)ylresorcinols, antifungal activity, phenolic compounds, bran, crystallization, fractionation, isolation, Fusarium spp., natural plant protection, grapes
Description

Secondary plant metabolites are part of the plant´s defense system against biotic and abiotic stresses, such as fungal attack. They are often found in large quantities in the outer layers of plant tissues. These metabolites may serve as natural alternatives to synthetic pesticides and may be recovered from by-products of food processing. The work described in this thesis deals with alkylresorcinols from bran, in particular with a novel process for their fractionation based on deep bed filtration at -80 °C and the determination of their antifungal activity against different Fusarium species. In addition, several phenolic compounds were investigated for their efficiency in a fungicide formulation. Ferulic acid proved to be highly efficient against the phytopathogenic fungus Botrytis cinerea. The fungicide formulation depressed spore germination and mycelial growth, inhibited the growth of fungicide-resistant Botrytis cinerea isolates, and effectively reduced the infection of contaminated table grapes.