Evaluation of antibacterial and antioxidant effects of cinnamon and clove essential oils from Madagascar

Amrani, Soukaina El; Lalami, Abdelhakim El Ouali; zoubi, Yassine Ez; Moukhafi, K.; Bouslamti, Rabia; Lairini, Sanae

doi:10.1016/j.matpr.2019.04.038

Cited by 30 publications

(13 citation statements)

References 44 publications

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“…e experimental results of essential oil yield obtained via the response-surface methodology (RSM) are presented in Table 2. e obtained yields were considered as very important compared to the previous works [26][27][28] and in the same order with those obtained by [29]. e identified model using the method of least squares is presented as in equation 5:…”

Section: Optimization Of Essential Oil Yieldmentioning

confidence: 99%

Optimization of Cinnamon (Cinnamomum zeylanicum Blume) Essential Oil Extraction: Evaluation of Antioxidant and Antiproliferative Effects

Kallel

Hadrich

Gargouri

et al. 2019

Evidence-Based Complementary and Alternative Medicine

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Having high cytotoxicity cell line effect, Cinnamomum zeylanicum Blume essential oil offers a novel approach to the chemotherapy treatment. In order to enhance its quantity/purity, the experimental conditions to produce essential oil should be more exploited. Steam distillation was used to isolate essential oil, and its conditions’ optimization was carried out with the surface-response methodology. The maximum amount (2.6 g/100 g d.b.) was obtained under minimum condensation water flow (0.8 mL/min), a sample size of 6.5 cm, a saline solution concentration of 262.5 g/L, and five washings. The produced essential oil contains >77% of polyphenols. In vitro cytotoxicity was examined using an MTT assay against HeLa and Raji cell lines. The essential oil’s capability to inhibit the proliferation of HeLa and Raji cell lines was studied under some conditions presenting IC50 values of 0.13 and 0.57 μg/mL, respectively. The essential oil was evaluated for its potential as an antioxidant by using in vitro models, such as phosphomolybdenum, DPPH, and H2O2 methods, in comparison with the synthetic antioxidant BHT (butylated hydroxytoluene) and ascorbic acid (vitamin C) as positive controls. The ammonium phosphomolybdate potency in the present study is of the order of 108.75 ± 32.63 mg of essential oil/equivalent to 1 mg of vitamin C in terms of antioxidant power, and the antioxidant activity of DPPH-H2O2 was 21.3% and 55.2%, respectively. The Cinnamomum zeylanicum Blume essential oil (CEO) covers important antioxidant and antiproliferative effects. This can be attributed to the presence of few minor and major phenolic compounds.

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Section: Optimization Of Essential Oil Yieldmentioning

confidence: 99%

Optimization of Cinnamon (Cinnamomum zeylanicum Blume) Essential Oil Extraction: Evaluation of Antioxidant and Antiproliferative Effects

Kallel

Hadrich

Gargouri

et al. 2019

Evidence-Based Complementary and Alternative Medicine

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show abstract

“…It can ablate intracellular organelles of R. solani , similar to the mode of action of thymol on fungal cells. The site of action of eugenol on mycelial cells is the cell membrane [ 35 , 36 ], yet the ultrastructural damage of the mycelia of rice sheath blight mainly involves intracellular organelles.…”

Section: Discussionmentioning

confidence: 99%

Growth Restriction of Rhizoctonia solani via Breakage of Intracellular Organelles Using Crude Extracts of Gallnut and Clove

Jian

Yang

et al. 2021

Molecules

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Plant diseases reduce crop yield and quality, hampering the development of agriculture. Fungicides, which restrict chemical synthesis in fungi, are the strongest controls for plant diseases. However, the harmful effects on the environment due to continued and uncontrolled utilization of fungicides have become a major challenge in recent years. Plant-sourced fungicides are a class of plant antibacterial substances or compounds that induce plant defenses. They can kill or inhibit the growth of target pathogens efficiently with no or low toxicity, they degrade readily, and do not prompt development of resistance, which has led to their widespread use. In this study, the growth inhibition effect of 24 plant-sourced ethanol extracts on rice sprigs was studied. Ethanol extract of gallnuts and cloves inhibited the growth of bacteria by up to 100%. Indoor toxicity measurement results showed that the gallnut and glove constituents inhibition reached 39.23 μg/mL and 18.82 μg/mL, respectively. Extract treated rice sprigs were dry and wrinkled. Gallnut caused intracellular swelling and breakage of mitochondria, disintegration of nuclei, aggregation of protoplasts, and complete degradation of organelles in hyphae and aggregation of cellular contents. Protection of Rhizoctonia solani viability reached 46.8% for gallnut and 37.88% for clove in water emulsions of 1000 μg/mL gallnut and clove in the presence of 0.1% Tween 80. The protection by gallnut was significantly stronger than that of clove. The data could inform the choice of plant-sourced fungicides for the comprehensive treatment of rice sprig disease. The studied extract effectively protected rice sprigs and could be a suitable alternative to commercially available chemical fungicides. Further optimized field trials are needed to effectively sterilize rice paddies.

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“…It can ablate intracellular organelles of R. solani, similar to the mode of action of thymol on fungal cells. The site of action of eugenol on mycelial cells is the cell membrane [32,33], yet the ultrastructural damage of the mycelia of rice sheath blight mainly involves intracellular organelles.…”

Section: Discussionmentioning

confidence: 99%

“…It adopts an allyl chain structure to replace o-methoxyphenol. It is chemically unstable, thus improved stability will be necessary for its optimal use in control of plant diseases [32][33][34]. Gallnut extract displayed a good protective effect against rice sheath blight in vivo.…”

Section: Discussionmentioning

confidence: 99%

Growth Restriction of Rhizoctonia Solani via Breakage of Intracellular Organelles by Crude Extract of Gallnut and Clove

Wang¹,

Hu²,

Yang³

et al. 2021

Preprint

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Plant diseases reduce crop yield and quality, hampering the development of agriculture. Fungicides, which restrict chemical synthesis, are the strongest controls for plant diseases. However, the harmful effects on the environment due to continued and uncontrolled utilization of fungicides has become a major challenge in recent years. Plant-sourced fungicides are a class of plant antibacterial substances or compounds that induce plant defenses. They can kill or inhibit the growth of target pathogens efficiently with no or low toxicity, degrade readily, do not prompt development of resistance, which has led to their widespread use. In this study, the growth inhibition effect of 24 plant-sourced ethanol extracts on rice sprigs was studied. Ethanol extract of gallnuts and cloves inhibited the growth of rice sprites by up to 100%. Indoor toxicity measurement results showed that the gallnut and glove constituents inhibition reached 39.23 μg/mL and 18.82 μg/mL, respectively. Extract treated rice sprigs were dry and wrinkled. Gallnut caused intracellular swelling and breakage of mitochondria , disintegration of nuclei, aggregation of protoplasts, and complete degradation of organelles in hyphae and aggregation of cellular contents. Protection of Rhizoctonia solani viability reached 46.8% for gallnut and 37.88% for clove in water emulsions of 1,000 μg/mL gallnut and clove in the presence of 0.1% Tween 80. The protection by gallnut was significantly stronger than that of clove. The data could inform the choice of plant-sourced fungicides for the comprehensive treatment of rice sprig disease. The studied extract effectively protected rice sprigs and could be a suitable alternative to commercially available chemical fungicides. Further optimized field trials are needed to effectively sterilize rice paddies.

show abstract

Evaluation of antibacterial and antioxidant effects of cinnamon and clove essential oils from Madagascar

Cited by 30 publications

References 44 publications

Optimization of Cinnamon (Cinnamomum zeylanicum Blume) Essential Oil Extraction: Evaluation of Antioxidant and Antiproliferative Effects

Optimization of Cinnamon (Cinnamomum zeylanicum Blume) Essential Oil Extraction: Evaluation of Antioxidant and Antiproliferative Effects

Growth Restriction of Rhizoctonia solani via Breakage of Intracellular Organelles Using Crude Extracts of Gallnut and Clove

Growth Restriction of Rhizoctonia Solani via Breakage of Intracellular Organelles by Crude Extract of Gallnut and Clove

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