Chemical Composition and Biological Activities of Essential Oils from Peels of Three Citrus Species
In: Molecules, Jg. 25 (2020-04-01), Heft 1890
Online
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Zugriff:
Background: Fruit peels are generally underutilized byproducts of the food industry, although they are valuable sources of bioactive compounds. The aim of this study is to evaluate a new application for three Citrus peel EOs as bio-herbicides. Methods: After a micro-morphological evaluation of Citrus peels by SEM analysis, the phytochemical composition of the EOs of Citrus ×
bergamia Risso &
Poit., Citrus ×
myrtifolia Raf., and Citrus limon (L.) Osbeck was characterized by GC/FID and GC/MS analyses. The in vitro phytotoxicity against germination and initial radical elongation of several crop and weed species was evaluated. Furthermore, the eco-compatibility of these EOs has been assessed by the brine shrimp (Artemia salina) lethality assay. Results: SEM analysis highlighted the morphometric differences of the schizolysigenous pockets among the peels of the three Citrus species. Oxygenated monoterpenes are the main constituents in C. ×
bergamia (51.09%), whereas monoterpene hydrocarbons represent the most abundant compounds in C. ×
myrtifolia (82.15%) and C. limon (80.33%) EOs. They showed marked and selective phytotoxic activity in vitro, often at very low concentration (0.1 &mu
g/mL) against all plant species investigated, without showing any toxicity on Artemia salina, opening the perspective of their use as safe bio-herbicides.
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Chemical Composition and Biological Activities of Essential Oils from Peels of Three Citrus Species
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Autor/in / Beteiligte Person: | Caputo, Lucia ; Smeriglio, Antonella ; Trombetta, Domenico ; Cornara, Laura ; Bazzicalupo, Miriam ; Clara De Francesco ; Vincenzo De Feo |
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Zeitschrift: | Molecules, Jg. 25 (2020-04-01), Heft 1890 |
Veröffentlichung: | MDPI AG, 2020 |
Medientyp: | unknown |
ISSN: | 1420-3049 (print) |
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