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Keywords = pinnatifidanoside D

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13 pages, 2003 KiB  
Article
Phytochemicals of Apple Pomace as Prospect Bio-Fungicide Agents against Mycotoxigenic Fungal Species—In Vitro Experiments
by Marta Oleszek, Łukasz Pecio, Solomiia Kozachok, Żaneta Lachowska-Filipiuk, Karolina Oszust and Magdalena Frąc
Toxins 2019, 11(6), 361; https://doi.org/10.3390/toxins11060361 - 20 Jun 2019
Cited by 37 | Viewed by 4691
Abstract
The phytochemical constituents of apple waste were established as potential antifungal agents against four crops pathogens, specifically, Botrytis sp., Fusarium oxysporum, Petriella setifera, and Neosartorya fischeri. Crude, purified extracts and fractions of apple pomace were tested in vitro to evaluate their [...] Read more.
The phytochemical constituents of apple waste were established as potential antifungal agents against four crops pathogens, specifically, Botrytis sp., Fusarium oxysporum, Petriella setifera, and Neosartorya fischeri. Crude, purified extracts and fractions of apple pomace were tested in vitro to evaluate their antifungal and antioxidant properties. The phytochemical constituents of the tested materials were mainly represented by phloridzin and quercetin derivatives, as well as previously undescribed in apples, monoterpene–pinnatifidanoside D. Its structure was confirmed by 1D- and 2D-nuclear magnetic resonance (NMR) spectroscopic analyses. The fraction containing quercetin pentosides possessed the highest antioxidant activity, while the strongest antifungal activity was exerted by a fraction containing phloridzin. Sugar moieties differentiated the antifungal activity of quercetin glycosides. Quercetin hexosides possessed stronger antifungal activity than quercetin pentosides. Full article
(This article belongs to the Special Issue Novel Approaches to Minimising Mycotoxin Contamination)
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