Antimicrobial and antioxidant bioautography activity of bark essential oil from <i>Ocotea quixos</i> (Lam.) kosterm.

Noriega, Paco; Mosquera, Tatiana; Paredes, Erika Alejandra Paredes; Parra, Michelle; Zappia, Morgana; Herrera, Mónica Tatiana; Villegas, Abigail; Osorio, Edison

doi:10.1556/1006.2018.31.2.11

Cited by 14 publications

(14 citation statements)

References 27 publications

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“…Methyl cinnamate showed a broadly antifungal activity (Lima et al 2018; Prakash et al 2015), inhibited bacterial growth (Malheiro et al 2019), had a larvicidal effect (Fujiwara et al 2017), and, furthermore, exibited some potential to inhibit plant growth (Fujiwara et al 2017; Khanh et al 2008). Essential oils from plants containing a large percentage of methyl cinnamte also showed high bioactivity (Mar et al 2018; Noriega et al 2018). In addition, methyl cinnamate is considered as an alternative to synthetic chemicals because it is safer (Fujiwara et al 2017; Prakash et al 2015).…”

Section: Resultsmentioning

confidence: 99%

Herbicidal properties of the commercial formulation of methyl cinnamate, a natural compound in the invasive silver wattle (Acacia dealbata)

et al. 2019

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Plants that release molecules affecting other plants are a source of potential bioherbicides. Silver wattle (Acacia dealbata Link), considered invasive worldwide, was found to be phytotoxic to various other plant species. Combining the search for alternative bioherbicides while reducing the spread of this invader by preventing seed formation is a good potential strategy to solve both agricultural and environmental problems. This study aimed to identify nonvolatile compounds from A. dealbata flowers and explore their phytotoxicity on the germination process and seedling and plant growth of lettuce (Lactuca sativa L.), wheat (Triticum aestivum L.), and rigid ryegrass (Lolium rigidum Gaudin). We identified methyl cinnamate and methyl anisate as potential phytotoxins in the extracts, but we used pure commercial molecules to conduct bioassays. Methyl cinnamate showed higher phytotoxicity than methyl anisate and was selected for further bioassays. Methyl cinnamate reduced guaiacol peroxidase activity by 57% and 85% in L. rigidum and lettuce, respectively, and α-amylase by 6% in L. rigidum. This compound also inhibited early stem and radicle growth of dicotyledonous lettuce (60% and 89%, respectively) and monocotyledonous L. rigidum (76% and 87%, respectively), both species having small seeds. However, wheat with a larger seed size was not affected by the phytotoxin. The results obtained indicate a potential bioherbicidal effect for methyl cinnamate, and its application might be useful in wheat crops infested by L. rigidum. We suggest that collecting A. dealbata flowers would prevent Acacia seed formation and thus play a role in invasive pest management, as well as serving as a source of potential herbicides to other species.

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Section: Resultsmentioning

confidence: 99%

Herbicidal properties of the commercial formulation of methyl cinnamate, a natural compound in the invasive silver wattle (Acacia dealbata)

et al. 2019

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“…The combination of evaluations of mass spectra and retention indices provide information that may be verified in specific databases for this type of compounds Mass Spectrometry and Its Importance for the Analysis and Discovery of Active Molecules… DOI: http://dx.doi.org/10.5772/intechopen.97733 [19]. Further studies of GC/MS in molecules separated in TLC, may reveal specific biological properties such as antibacterial or antioxidant [20].…”

Section: Essential Oilsmentioning

confidence: 99%

Mass Spectrometry and Its Importance for the Analysis and Discovery of Active Molecules in Natural Products

Noriega¹,

Gortaire²,

Osorio³

2022

Natural Drugs From Plants

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Mass spectrometry is one of the best techniques for analyzing the structure of a molecule. It usually provides information about the molecular weight of a substance, and it can present atomic mass units and up to ten thousandths of atomic mass units depending on the accuracy of the mass analyzer. In addition, it provides information on the positive ions formed in the ionization process, which is linked to the chemical structure of the molecule and the nature of the bonds. This technique is widely used for analyzing compounds from natural products. The development of the technique combined with the use of software and databases has been remarkable in recent years, improving the ionization processes and the ion analysis. Since natural products generally constitute a mixture of a complex quantity of components, mechanisms have been developed for coupling to chromatographic techniques of various kinds. This review aims to show how mass spectrometry has contributed to the qualitative quality control in natural products, as well as in the finding of new metabolites of industrial interest.

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“…The present work used the essential oil of Ocotea for formulating emulsifiable concentrates. Noriega et al (2018) determined that the essential oil of Ocotea with 30.69% cinnamaldehyde has high antimicrobial and antifungal activity. On the other hand, JARDIM et al, (2017) determined that emulsions of the essential oil of Cinnamomum cassia with 83.3% cinnamaldehyde show nematicidal activity without phytotoxicity in soybean plants.…”

Section: Qualitativementioning

confidence: 99%

“…In contrast, Noriega and Dacarro (2008) identified that 12.5 µl.ml -1 of Ocotea essential oil inhibits the growth of Candida albicans and Escherichia coli, whereas a lower concentration of 6.25 µl.ml -1 inhibits the growth of Staphylococcus species (S. epidermidis, S. aureus, S. pyogenes, and S. mutans). However, Noriega et al (2018) identified that essential oil from Ocotea quixos has 30.69% of cinnamaldehyde with high antimicrobial and antifungal activity, along with antioxidant activity. Cinnamaldehyde consists of a benzene ring, an ethane group, and an aldehyde group and presents broad-spectrum antimicrobial activity against bacteria, yeasts, and molds (OTONI et al, 2014;SHEN et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

OIL-IN-WATER (O/W) EMULSIONABLE CONCENTRATE OF ISHPINK (Ocotea quixos) WITH THERMODYNAMIC STABILITY

et al. 2019

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Ecuador has a vast number of native species with fungicidal, herbicidal, and insecticidal properties, of which several have been studied; however, few plant species have been applied for the development of commercial products. Ocotea quixos is an indigenous plant of the Ecuadorian Amazon that has fungicidal properties. In this work, we focus on developing an emulsifiable concentrate that is physically stable for use in the agricultural industry. The study aimed to determine the appropriate formulation to prepare an emulsifiable concentrate with thermodynamic stability. For the formulation, we used Ocotea quixos essential oil with cinnamaldehyde as an active ingredient, with solvesso 100 as the solvent, two non-ionic emulsifiers (Span-20 and Tween-20), and calcium phenyl sulfonate as an anionic emulsifier to obtain a stable product. The results showed that the OC5C emulsifiable concentrate has the best stability characteristics with the hydrophilic-lipophilic balance (HLB) within the range of 14 to 16 at room temperature as well as at high and low temperature with a drop size between 3 and 4 µm.

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Antimicrobial and antioxidant bioautography activity of bark essential oil from Ocotea quixos (Lam.) kosterm.

Cited by 14 publications

References 27 publications

Herbicidal properties of the commercial formulation of methyl cinnamate, a natural compound in the invasive silver wattle (Acacia dealbata)

Herbicidal properties of the commercial formulation of methyl cinnamate, a natural compound in the invasive silver wattle (Acacia dealbata)

Mass Spectrometry and Its Importance for the Analysis and Discovery of Active Molecules in Natural Products

OIL-IN-WATER (O/W) EMULSIONABLE CONCENTRATE OF ISHPINK (Ocotea quixos) WITH THERMODYNAMIC STABILITY

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