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Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide

A natural herbicide nanoemulsion was fabricated from citronella (Cymbopogon nardus L.) essential oil (CEO) and a nonionic surfactant Tween 60 mixed with Span 60 at hydrophilic-lipophilic balance 14 using a microfluidization method. The main constituents of CEO were citronellol (35.244%), geraniol (2...

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Autores principales: Somala, Naphat, Laosinwattana, Chamroon, Chotsaeng, Nawasit, Teerarak, Montinee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10682385/
https://www.ncbi.nlm.nih.gov/pubmed/38012328
http://dx.doi.org/10.1038/s41598-023-48328-6
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author Somala, Naphat
Laosinwattana, Chamroon
Chotsaeng, Nawasit
Teerarak, Montinee
author_facet Somala, Naphat
Laosinwattana, Chamroon
Chotsaeng, Nawasit
Teerarak, Montinee
author_sort Somala, Naphat
collection PubMed
description A natural herbicide nanoemulsion was fabricated from citronella (Cymbopogon nardus L.) essential oil (CEO) and a nonionic surfactant Tween 60 mixed with Span 60 at hydrophilic-lipophilic balance 14 using a microfluidization method. The main constituents of CEO were citronellol (35.244%), geraniol (21.906%), and citronellal (13.632%). CEO nanoemulsion droplet size and polydispersity index (PI) were evaluated by dynamic light scattering (DLS). The smallest droplet size (33.2 nm, PI 0.135) was obtained from a microfluidizer at 20,000 psi, 7 cycles. Nanoemulsion droplet in transmission electron microscopy correlated with DLS confirmed CEO to successfully produce nanoemulsion. The herbicidal activity of the nanoemulsion as a foliar spray was evaluated against Echinochloa cruss-galli and Amaranthus tricolor as representative narrow- and broadleaf weed plants, both of which presented visual toxicity symptoms. The modes of action of the nanoemulsion were then determined in terms of membrane integrity (relative electrolyte leakage; REL), malondialdehyde (MDA), and photosynthetic pigment contents. The results showed increase in REL and MDA which indicated the destruction of the treated plants; additionally, chlorophylls and carotenoid contents were decreased. Consequently, CEO nanoemulsion may have the possibility to act as a natural herbicide resource, and natural herbicides from citronella nanoemulsions could be good alternatives for use in sustainable agriculture.
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spelling pubmed-106823852023-11-30 Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide Somala, Naphat Laosinwattana, Chamroon Chotsaeng, Nawasit Teerarak, Montinee Sci Rep Article A natural herbicide nanoemulsion was fabricated from citronella (Cymbopogon nardus L.) essential oil (CEO) and a nonionic surfactant Tween 60 mixed with Span 60 at hydrophilic-lipophilic balance 14 using a microfluidization method. The main constituents of CEO were citronellol (35.244%), geraniol (21.906%), and citronellal (13.632%). CEO nanoemulsion droplet size and polydispersity index (PI) were evaluated by dynamic light scattering (DLS). The smallest droplet size (33.2 nm, PI 0.135) was obtained from a microfluidizer at 20,000 psi, 7 cycles. Nanoemulsion droplet in transmission electron microscopy correlated with DLS confirmed CEO to successfully produce nanoemulsion. The herbicidal activity of the nanoemulsion as a foliar spray was evaluated against Echinochloa cruss-galli and Amaranthus tricolor as representative narrow- and broadleaf weed plants, both of which presented visual toxicity symptoms. The modes of action of the nanoemulsion were then determined in terms of membrane integrity (relative electrolyte leakage; REL), malondialdehyde (MDA), and photosynthetic pigment contents. The results showed increase in REL and MDA which indicated the destruction of the treated plants; additionally, chlorophylls and carotenoid contents were decreased. Consequently, CEO nanoemulsion may have the possibility to act as a natural herbicide resource, and natural herbicides from citronella nanoemulsions could be good alternatives for use in sustainable agriculture. Nature Publishing Group UK 2023-11-27 /pmc/articles/PMC10682385/ /pubmed/38012328 http://dx.doi.org/10.1038/s41598-023-48328-6 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Somala, Naphat
Laosinwattana, Chamroon
Chotsaeng, Nawasit
Teerarak, Montinee
Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
title Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
title_full Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
title_fullStr Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
title_full_unstemmed Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
title_short Citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
title_sort citronella essential oil-based nanoemulsion as a post-emergence natural herbicide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10682385/
https://www.ncbi.nlm.nih.gov/pubmed/38012328
http://dx.doi.org/10.1038/s41598-023-48328-6
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