Essential oils-oriented chiral esters as potential pesticides: Asymmetric syntheses, characterization and bio-evaluation

Li, Huangyong; Chen, Changshui; Cao, Xiufang

doi:10.1016/j.indcrop.2015.07.027

Cited by 14 publications

(6 citation statements)

References 30 publications

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“…The tests show that the level of liquid smoke increases as the concentration of the liquid smoke solution increases. The results meet the Japanese specification liquid smoke quality standards because the pH value range of 1.50-3.70 is met in this study (Li et al, 2015). The acid content of grade 3 liquid smoke varies depending on the test solution type.…”

Section: Figure 3 Cylas Formicarius Mortality Testsupporting

confidence: 78%

Liquid Smoke of Red Fruit (Pandanus Conoideus. L.) Waste with Pyrolysis Method For Controlling Sweet Potatoes (Ipomea Batatas. L.) Pest

DEWI¹,

TUHUTERU

ALADIN³

et al. 2022

IJESSS

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Pandanus conoidus, or red fruit, is a nutrient-dense native Papuan plant, whereas Ipomea batatas are the main food for the Wamena people. Biomass from red fruit seed waste can be used as liquid smoke to control Ipomea batatas . At a temperature of between 300 - 450 °C, liquid smoke is produced through a pyrolysis process. Pyrolysis produces phenolic chemicals and aldehydes that have antioxidant and antimicrobial properties (anti-bacterial and anti-fungal). The assessment of pH, acidity, and phenol concentration characterizes the quality of liquid smoke. The potential of red fruit seed waste as a liquid smoke product for biopesticides in Ipomea batatas is explored in this study. Additionally, study development aims to determine the optimal method for pyrolyzing red fruit seed waste, its characteristics, chemical content, and the way to use liquid smoke as a biopesticide in Ipomea batatas . The results showed that the liquid smoke of grade 3 red fruit seed waste contains 7 components that can be detected using a mass spectrometer. The higher the concentration of liquid smoke produced by grade 3 red fruit seeds, the higher the possibility of Cylas formicarius mortality. Cylas formicarius had the highest mortality rate (90%) when tested at a 7% test solution concentration.

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Section: Figure 3 Cylas Formicarius Mortality Testsupporting

confidence: 78%

Liquid Smoke of Red Fruit (Pandanus Conoideus. L.) Waste with Pyrolysis Method For Controlling Sweet Potatoes (Ipomea Batatas. L.) Pest

DEWI¹,

TUHUTERU

ALADIN³

et al. 2022

IJESSS

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“…Therefore, if the rational derivatization of essential oil molecules can be based on retaining their activity, the application of plant essential oils will undoubtedly be a significant development. Recently, during the course of our research for functional molecules based on natural essential oils [19,20], a series of essential oil-oriented derivatives have been synthesized and approved to exhibit insecticidal or fungicidal activities, which suggest that these natural essential oils might contribute to the biological functions.…”

Section: Introductionmentioning

confidence: 99%

Natural phenolic derivatives based on piperine scaffold as potential antifungal agents

Wang

Xiong

et al. 2020

BMC Chemistry

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Piperine is a natural alkaloid with a wide range of biological functions. Natural phenolic compounds existed in many essential oils (EOs) are plant-derived aroma compounds with broad range of biological activities, however, their actions are slow, and they are typically unstable to light or heat, difficult to extract and so on. In order to find highpotential fungicides derived from piperine, a series of piperine-directed essential oil derivatives were designed and synthesized. The structures of all molecules were confirmed by satisfied spectral data, including 1 H NMR, 13 C NMR and ESIMS. The target compounds were screened for their potential fungicidal activities against six species of plant pathogen fungi, including Rhizoctonia solani, Fusarium graminearum, Phomopsis adianticola, Alternaria tenuis Nees, Phytophthora capsici and Gloeosporium theae-sinensis. Some of target compounds exhibited moderate and broad-spectrum activity against tested fungi compared to the parental piperine. Further studies have shown that some different concentrations of compounds have significant inhibitory activity against Alternaria tenuis Nees and Phytophthora capsici compared to commercial carbendazim, and compound 2b exhibited particularly significant broad-spectrum fungicidal activity.

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“…A few effective chemical compounds used to control/reduce cacao black pod disease are metalaxyl-and copper-based fungicides [11], [15]. Additionally, chemical components containing essential oils, especially terpene, phenol and alcohol, are being considered for use as biopesticides because they have various biological activities [16], [17], such as insecticidal [18]- [20], antifeedant [21], repellent [22], [23], lure [24], insect growth inhibition [25], and antimicrobial [26], [27]. However, essential oils are mostly volatile, easily decompose, and are unstable when exposed to light and heat [28], [29].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Effectiveness of Liquid Smoke Produced From Palm Kernel Shells in Inhibiting Black Pod Disease in Cacao Fruit in Vitro

Faisa

Chamzurni

Daimon

2018

GEOMATE

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The effectiveness of liquid smoke made from palm kernel shells in inhibiting black pod disease (Phytopthora palmivora) in cacao fruit was studied. Palm kernel shells underwent pyrolysis in a slow-pyrolysis reactor at 280°C-400°C. The resulting liquid smoke was then distilled at a temperature of 200°C. The observed parameters were incubation period and spotting diameter. The experimental design was completely randomized, with a 4 × 6 factorial pattern having four repetitions and consisting of two factors. Both temperature and concentration significantly affected the incubation period of the fungi causing black pod disease. Additionally, the liquid smoke concentration had a strong influence on the spotting diameter. Phenolic compounds and acetic acid contained in the liquid smoke serve as antimicrobials and are bacteriostatic. Although the maximum phenol level was found at 280°C, the longest incubation period occurred in liquid smoke produced at a pyrolysis temperature of 360°C. Thus, 360°C was the optimum temperature for producing liquid smoke to inhibit black pod disease caused by P. palmivora in cacao.

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Essential oils-oriented chiral esters as potential pesticides: Asymmetric syntheses, characterization and bio-evaluation

Cited by 14 publications

References 30 publications

Liquid Smoke of Red Fruit (Pandanus Conoideus. L.) Waste with Pyrolysis Method For Controlling Sweet Potatoes (Ipomea Batatas. L.) Pest

Liquid Smoke of Red Fruit (Pandanus Conoideus. L.) Waste with Pyrolysis Method For Controlling Sweet Potatoes (Ipomea Batatas. L.) Pest

Natural phenolic derivatives based on piperine scaffold as potential antifungal agents

A Study on the Effectiveness of Liquid Smoke Produced From Palm Kernel Shells in Inhibiting Black Pod Disease in Cacao Fruit in Vitro

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