Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species
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 <i>Citrus</i> peel EOs as bio-herbicides. Methods: After a micro-morphological...
Main Authors: | , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-04-01
|
Series: | Molecules |
Subjects: | |
Online Access: | https://www.mdpi.com/1420-3049/25/8/1890 |
id |
doaj-ad4b336f9e5b40b28a7473962dfda126 |
---|---|
record_format |
Article |
spelling |
doaj-ad4b336f9e5b40b28a7473962dfda1262020-11-25T02:22:44ZengMDPI AGMolecules1420-30492020-04-01251890189010.3390/molecules25081890Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> SpeciesLucia Caputo0Laura Cornara1Miriam Bazzicalupo2Clara De Francesco3Vincenzo De Feo4Domenico Trombetta5Antonella Smeriglio6Department of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Salerno, ItalyDepartment for the Earth, Environment and Life Sciences, University of Genova, Corso Europa 26, 16132 Genova, ItalyDepartment for the Earth, Environment and Life Sciences, University of Genova, Corso Europa 26, 16132 Genova, ItalyDepartment of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, 98168 Messina, ItalyDepartment of Pharmacy, University of Salerno, via Giovanni Paolo II 132, 84084 Fisciano, Salerno, ItalyDepartment of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, 98168 Messina, ItalyDepartment of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, 98168 Messina, ItalyBackground: 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 <i>Citrus</i> peel EOs as bio-herbicides. Methods: After a micro-morphological evaluation of <i>Citrus</i> peels by SEM analysis, the phytochemical composition of the EOs of <i>Citrus × bergamia</i> Risso & Poit., <i>Citrus × myrtifolia</i> Raf., and <i>Citrus limon</i> (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 (<i>Artemia salina</i>) lethality assay. Results: SEM analysis highlighted the morphometric differences of the schizolysigenous pockets among the peels of the three <i>Citrus</i> species. Oxygenated monoterpenes are the main constituents in <i>C. × bergamia</i> (51.09%), whereas monoterpene hydrocarbons represent the most abundant compounds in <i>C. × myrtifolia</i> (82.15%) and <i>C. limon</i> (80.33%) EOs. They showed marked and selective phytotoxic activity in vitro, often at very low concentration (0.1 μg/mL) against all plant species investigated, without showing any toxicity on <i>Artemia salina</i>, opening the perspective of their use as safe bio-herbicides.https://www.mdpi.com/1420-3049/25/8/1890<i>Citrus limon</i><i>Citrus × bergamia</i><i>Citrus × myrtifolia</i>essential oilphytotoxicityeco-compatibility |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lucia Caputo Laura Cornara Miriam Bazzicalupo Clara De Francesco Vincenzo De Feo Domenico Trombetta Antonella Smeriglio |
spellingShingle |
Lucia Caputo Laura Cornara Miriam Bazzicalupo Clara De Francesco Vincenzo De Feo Domenico Trombetta Antonella Smeriglio Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species Molecules <i>Citrus limon</i> <i>Citrus × bergamia</i> <i>Citrus × myrtifolia</i> essential oil phytotoxicity eco-compatibility |
author_facet |
Lucia Caputo Laura Cornara Miriam Bazzicalupo Clara De Francesco Vincenzo De Feo Domenico Trombetta Antonella Smeriglio |
author_sort |
Lucia Caputo |
title |
Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species |
title_short |
Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species |
title_full |
Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species |
title_fullStr |
Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species |
title_full_unstemmed |
Chemical Composition and Biological Activities of Essential Oils from Peels of Three <i>Citrus</i> Species |
title_sort |
chemical composition and biological activities of essential oils from peels of three <i>citrus</i> species |
publisher |
MDPI AG |
series |
Molecules |
issn |
1420-3049 |
publishDate |
2020-04-01 |
description |
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 <i>Citrus</i> peel EOs as bio-herbicides. Methods: After a micro-morphological evaluation of <i>Citrus</i> peels by SEM analysis, the phytochemical composition of the EOs of <i>Citrus × bergamia</i> Risso & Poit., <i>Citrus × myrtifolia</i> Raf., and <i>Citrus limon</i> (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 (<i>Artemia salina</i>) lethality assay. Results: SEM analysis highlighted the morphometric differences of the schizolysigenous pockets among the peels of the three <i>Citrus</i> species. Oxygenated monoterpenes are the main constituents in <i>C. × bergamia</i> (51.09%), whereas monoterpene hydrocarbons represent the most abundant compounds in <i>C. × myrtifolia</i> (82.15%) and <i>C. limon</i> (80.33%) EOs. They showed marked and selective phytotoxic activity in vitro, often at very low concentration (0.1 μg/mL) against all plant species investigated, without showing any toxicity on <i>Artemia salina</i>, opening the perspective of their use as safe bio-herbicides. |
topic |
<i>Citrus limon</i> <i>Citrus × bergamia</i> <i>Citrus × myrtifolia</i> essential oil phytotoxicity eco-compatibility |
url |
https://www.mdpi.com/1420-3049/25/8/1890 |
work_keys_str_mv |
AT luciacaputo chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies AT lauracornara chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies AT miriambazzicalupo chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies AT claradefrancesco chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies AT vincenzodefeo chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies AT domenicotrombetta chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies AT antonellasmeriglio chemicalcompositionandbiologicalactivitiesofessentialoilsfrompeelsofthreeicitrusispecies |
_version_ |
1724862034783240192 |