Supercritical CO2 Plant Extracts Show Antifungal Activities against Crop-Borne Fungi

Fungal infections of cultivated food crops result in extensive losses of crops at the global level, while resistance to antifungal agents continues to grow. Supercritical fluid extraction using CO2 (SFE-CO2) has gained attention as an environmentally well-accepted extraction method, as CO2 is a non-...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2022-02, Vol.27 (3), p.1132
Main Authors: Schoss, Katja, Kočevar Glavač, Nina, Dolenc Koce, Jasna, Anžlovar, Sabina
Format: Article
Language:English
Subjects:
antifungal activity
Antifungal agents
Botrytis cinerea
Buckwheat
Carbon dioxide
Chamomilla recutita
Crops
Flowers & plants
Fungi
Fungicides
Fusarium oxysporum
growth inhibition
Harvest
Oils & fats
Pesticides
plant extract
Plant extracts
supercritical CO2 extraction
Supercritical fluids
Supercritical gas extraction
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Summary:Fungal infections of cultivated food crops result in extensive losses of crops at the global level, while resistance to antifungal agents continues to grow. Supercritical fluid extraction using CO2 (SFE-CO2) has gained attention as an environmentally well-accepted extraction method, as CO2 is a non-toxic, inert and available solvent, and the extracts obtained are, chemically, of greater or different complexities compared to those of conventional extracts. The SFE-CO2 extracts of Achillea millefolium, Calendula officinalis, Chamomilla recutita, Helichrysum arenarium, Humulus lupulus, Taraxacum officinale, Juniperus communis, Hypericum perforatum, Nepeta cataria, Crataegus sp. and Sambucus nigra were studied in terms of their compositions and antifungal activities against the wheat- and buckwheat-borne fungi Alternaria alternata, Epicoccum nigrum, Botrytis cinerea, Fusarium oxysporum and Fusarium poae. The C. recutita and H. arenarium extracts were the most efficacious, and these inhibited the growth of most of the fungi by 80% to 100%. Among the fungal species, B. cinerea was the most susceptible to the treatments with the SFE-CO2 extracts, while Fusarium spp. were the least. This study shows that some of these SFE-CO2 extracts have promising potential for use as antifungal agents for selected crop-borne fungi.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27031132