Navel Orange Peel Essential Oil To Control Food Spoilage Molds in Potato Slices

2018 ◽  
Vol 81 (9) ◽  
pp. 1496-1502
Author(s):  
YONGQING SHI ◽  
SA HUANG ◽  
YIYAN HE ◽  
JINJING WU ◽  
YUPEI YANG
Keyword(s):  
Essential Oil ◽  
Rhizopus Oryzae ◽  
Microbiological Quality ◽  
Orange Peel ◽  
Fungal Species ◽  
Gas Chromatography Mass Spectrometry ◽  
Navel Orange ◽  
Potato Slices

ABSTRACT The aim of this study was to investigate the efficacy of navel orange, Citrus sinensis (L.) Osbeck, peel essential oil (NOPEO) for inhibiting spoilage fungi in potato slices. Sixteen different components accounting for 99.79% of the headspace components of NOPEO were identified by gas chromatography–mass spectrometry. d-Limonene was the major component of NOPEO. Antifungal activity of NOPEO was tested in vitro and in vivo against four foodborne fungi. A MIC of NOPEO against the four fungal species was 9.40 μL/mLair. NOPEO provided about 74, 74, 73, and 69% protection against Aspergillus niger, Mucor wutungkiao, Penicillium funiculosum, and Rhizopus oryzae at 2.00 μL/mLair concentration, respectively. NOPEO has been demonstrated to significantly improve the microbiological quality of potato slices.

scholarly journals Phytotoxicity of Essential Oils on Selected Weeds: Potential Hazard on Food Crops

Plants ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 79 ◽  
Author(s):  
María Ibáñez ◽  
María Blázquez
Keyword(s):  
Seed Germination ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Food Crops ◽  
Potential Hazard ◽  
Spectrometry Analysis

The chemical composition of winter savory, peppermint, and anise essential oils, and in vitro and in vivo phytotoxic activity against weeds (Portulaca oleracea, Lolium multiflorum, and Echinochloa crus-galli) and food crops (maize, rice, and tomato), have been studied. Sixty-four compounds accounting for between 97.67–99.66% of the total essential oils were identified by Gas Chromatography-Mass Spectrometry analysis. Winter savory with carvacrol (43.34%) and thymol (23.20%) as the main compounds produced a total inhibitory effect against the seed germination of tested weed. Menthol (48.23%), menthone (23.33%), and iso-menthone (16.33%) from peppermint only showed total seed germination inhibition on L. multiflorum, whereas no significant effects were observed with trans-anethole (99.46%) from anise at all concentrations (0.125–1 µL/mL). Low doses of peppermint essential oil could be used as a sustainable alternative to synthetic agrochemicals to control L. multiflorum. The results corroborate that in vivo assays with a commercial emulsifiable concentrate need higher doses of the essential oils to reproduce previous in vitro trials. The higher in vivo phytotoxicity of winter savory essential oil constitutes an eco-friendly and less pernicious alternative to weed control. It is possible to achieve a greater in vivo phytotoxicity if less active essential oil like peppermint is included with other active excipients.

scholarly journals In vitro fungitoxic potential of Lippia gracilis (Schauer) essential oil against phytopathogens

2020 ◽  
pp. 667-674
Author(s):  
Kevison Romulo da Silva França ◽  
Flavia Mota de Figueredo Alves ◽  
Tiago Silva Lima ◽  
Alda Leaby dos Santos Xavier ◽  
Plínio Tércio Medeiros de Azevedo ◽  
...  
Keyword(s):  
Essential Oil ◽  
Mycelial Growth ◽  
Fungal Growth ◽  
Fungal Species ◽  
Phytopathogenic Fungi ◽  
Negative Control ◽  
Growth Speed ◽  
Randomized Design

This study evaluates the in vitro effects of Lippia gracilis essential oil on the mycelial growth of phytopathogenic fungi. Experiments were carried out using a completely randomized design to assess the effects of eight treatments. Five replicates were evaluated for each experimental group. The essential oil was incorporated into the potato dextrose culture medium and poured into Petri dishes. Treatments were comprised of different concentrations of the oil (0.0125, 0.025, 0.05, 0.1, and 0.2%), a negative control (0.0%), and two positive controls (commercial fungicides). The plates were inoculated with fungi including Colletotrichum gloeosporioides, C. musae, C. fructicola, C. asianum, Alternaria alternata, A. brassicicola, Fusarium solani, F. oxysporum f. sp. cubense, and Lasiodiplodia theobromae and were incubated for seven days at 27 ± 2°C. The following variables were measured to verify the differences observed among treatments: percentage of mycelial growth inhibition and index of mycelial growth speed. All concentrations of L. gracilis oil inhibited the mycelial growth of the fungal species evaluated. The complete inhibition was observed between concentrations of 0.0125 and 0.1%. Treatment with oil inhibited fungal growth with similar, or even greater, efficiency than commercial fungicides.. We recommend the development of in vivo tests to verify whether L. gracilis essential oil can protect against fungal disease in live plants.

scholarly journals Cognitive Facilitation and Antioxidant Effects of an Essential Oil Mix on Scopolamine-Induced Amnesia in Rats: Molecular Modeling of In Vitro and In Vivo Approaches

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1519 ◽  
Author(s):  
Razvan Stefan Boiangiu ◽  
Ion Brinza ◽  
Monica Hancianu ◽  
Ilkay Erdogan Orhan ◽  
Gokcen Eren ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Essential Oil ◽  
Rat Model ◽  
Active Site ◽  
Gas Chromatography Mass Spectrometry ◽  
Active Site Residues ◽  
Reference Drug ◽  
Brain Oxidative Stress

The present study investigated the capability of an essential oil mix (MO: 1% and 3%) in ameliorating amnesia and brain oxidative stress in a rat model of scopolamine (Sco) and tried to explore the underlying mechanism. The MO was administered by inhalation to rats once daily for 21 days, while Sco (0.7 mg/kg) treatment was delivered 30 min before behavioral tests. Donepezil (DP: 5 mg/kg) was used as a positive reference drug. The cognitive-enhancing effects of the MO in the Sco rat model were assessed in the Y-maze, radial arm maze (RAM), and novel object recognition (NOR) tests. As identified by gas chromatography–mass spectrometry (GC–MS), the chemical composition of the MO is comprised by limonene (91.11%), followed by γ-terpinene (2.02%), β-myrcene (1.92%), β-pinene (1.76%), α-pinene (1.01%), sabinene (0.67%), linalool (0.55%), cymene (0.53%), and valencene (0.43%). Molecular interactions of limonene as the major compound in MO with the active site of butyrylcholinesterase (BChE) was explored via molecular docking experiments, and Van der Waals (vdW) contacts were observed between limonene and the active site residues SER198, HIS438, LEU286, VAL288, and PHE329. The brain oxidative status and acetylcholinesterase (AChE) and BChE inhibitory activities were also determined. MO reversed Sco-induced memory deficits and brain oxidative stress, along with cholinesterase inhibitory effects, which is an important mechanism in the anti-amnesia effect. Our present findings suggest that MO ameliorated memory impairment induced by Sco via restoration of the cholinergic system activity and brain antioxidant status.

scholarly journals In Vitro Activity of Foeniculum vulgare and Its Main Essential Oil Component Trans-Anethole on Trichomonas vaginalis

2019 ◽  
Author(s):  
Faezeh KARAMI ◽  
Dara DASTAN ◽  
Mohammad FALLAH ◽  
Mohammad MATINI
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Trichomonas Vaginalis ◽  
Vitro Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Major Constituent ◽  
In Vitro Activity ◽  
Foeniculum Vulgare

Background: Trichomoniasis is one of the most common nonviral sexually transmitted infections worldwide which drug-resistant cases of the infection are rising. The aim of the study was to assessment the in vitro activity of Foeniculum vulgare and its main essential oil component on Trichomonas vaginalis. Also phytochemical investigation of F. vulgare essential oil was performed. Methods: Five T. vaginalis isolates subjected to susceptibility testing against essential oil and extracts of F. vulgare and anethole using microtiter plate method. The minimum lethal concentration (MLC) of the natural products was assessed in comparison with metronidazole. Gas chromatography-mass spectrometry and gas chromatography-flame ionization detector was applied for chemical investigation of the essential oil. Results: After 48 hours incubation, the most potent antitrichomonal agents were the methanolic and hexanic extract with MLC of 360 µg/ml and followed by the essential oil and anethole (1600 µg/ml). The isolates were sensitive to metronidazole with a mean MLC of 13.7 µg/ml. E-Anethole (88.41 %) was the major constituent of F. vulgare essential oil. Conclusion: The results suggested in vitro antiprotozoal properties of F. vulgare and anethole against T. vaginalis. Therefore further studies are needed to evaluate their in vivo effects and toxicity.

scholarly journals Antifungal Effects of Savory Essential Oil, Gum Arabic, and Hot Water in Mexican Lime Fruits

HortScience ◽  
2018 ◽  
Vol 53 (4) ◽  
pp. 524-530 ◽  
Author(s):  
Sara Atrash ◽  
Asghar Ramezanian ◽  
Majid Rahemi ◽  
Reza Mostofizadeh Ghalamfarsa ◽  
Elhadi Yahia
Keyword(s):  
Essential Oil ◽  
Gum Arabic ◽  
Hot Water ◽  
Gas Chromatography Mass Spectrometry ◽  
Second Phase ◽  
Fruit Peel ◽  
Mexican Lime ◽  
Physicochemical Changes

Penicillium digitatum is one of the most important causes of postharvest decay of Mexican lime fruit. The first stage of this study dealt with examining the effect of savory (Satureja hortensis) essential oil on P. digitatum mycelial growth in vitro. Savory essential oil (SEO) applied at concentrations of 0, 200, 400, 600, 800, 1000, and 1200 μL·L−1 to potato dextrose agar (PDA) medium. The results revealed that the application of SEO at concentrations of 1000 and 1200 μL·L−1 completely prevented the growth of P. digitatum. Gas chromatography–mass spectrometry results indicated that the dominant components of SEO were carvacrol (55.67%) and γ-terpinene (31.98%). In the second phase of the experiment, in vivo assays were conducted to evaluate the efficiency of SEO (800 and 1000 μL·L−1), hot water (40 and 50 °C), and gum arabic coating (2.5% and 5%) in restricting the fungi activity on Mexican lime fruit. The Mexican lime fruit were immersed in the aqueous solutions of SEO and gum arabic or in the hot water for 5 minutes, and then stored at 8 °C for 30 days. Savory essential oil at the concentration of 800 μL·L−1 proved to be the most effective treatment in conserving bioactive compounds of the fruits such as total phenols. This treatment also optimally maintained antioxidant activity and suppressed the activity of polyphenol oxidase (PPO) in the fruit peel. Moreover, hot water at 40 °C caused the least physicochemical changes and the highest appearance quality during storage.

Synergism of citral from Cymbopogon citratus essential oil and undecan-2-one against Meloidogyne incognita

Nematology ◽  
2020 ◽  
Vol 22 (10) ◽  
pp. 1101-1110
Author(s):  
Aline F. Barros ◽  
Vicente P. Campos ◽  
Letícia L. de Paula ◽  
Denilson F. de Oliveira ◽  
Geraldo H. Silva
Keyword(s):  
Essential Oil ◽  
Meloidogyne Incognita ◽  
Tween 80 ◽  
Nematicidal Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Cymbopogon Citratus ◽  
Oil Concentration ◽  
Main Components

Summary The nematicidal activity of the essential oil of Cymbopogon citratus and its main components were studied. During in vitro assays with Meloidogyne incognita second-stage juveniles (J2), the oil showed an LC50 of 166 μg ml−1. In vivo assays that exposed J2 to the LC50 oil concentration significantly reduced galls and eggs on tomato roots. According to gas chromatography-mass spectrometry analyses, the main components of the essential oil were geranial (42.7%) and neral (33.0%). The combination of these two isomers, known as citral, had an enhanced nematicidal activity at low concentrations as shown by in vitro tests through a synergistic interaction with undecan-2-one. In assays with tomato plants inoculated with M. incognita J2, the combination of citral (600 μg ml−1) and undecan-2-one (300 μg ml−1) showed a high reduction in the number of galls (63.4%) and eggs (56.3%) in relation to Tween 80® control. The citral/undecan-2-one combination showed a synergistic nematicidal activity against M. incognita during in vitro and in vivo assays.

The in vivo and in vitro angiogenic evaluation of the essential oil of Echinophora tournefortii

Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
B Demirci ◽  
T Kiyan ◽  
A Koparal ◽  
M Kaya ◽  
F Demirci ◽  
...  
Keyword(s):  
Essential Oil

scholarly journals Amelioration of lipid peroxidation in vivo and in vitro by Satureja khozestanica essential oil in alloxan-induced diabetic rats

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Hassan Ahmadvand ◽  
Majid Tavafi ◽  
Ali Khosrowbeygi ◽  
Gholamreza Shahsavari ◽  
Maryam Hormozi ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Essential Oil ◽  
Diabetic Rats

scholarly journals Therapeutic Potentials of Syzygium fruticosum Fruit (Seed) Reflected into an Array of Pharmacological Assays and Prospective Receptors-Mediated Pathways

Life ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 155
Author(s):  
Jannatul Nasma Rupa Moni ◽  
Md. Adnan ◽  
Abu Montakim Tareq ◽  
Md. Imtiazul Kabir ◽  
A.S.M. Ali Reza ◽  
...  
Keyword(s):  
Bioactive Compounds ◽  
Integrated Approach ◽  
Gas Chromatography Mass Spectrometry ◽  
Clot Lysis ◽  
Lipinski’S Rule ◽  
Lysis Activity ◽  
In Silico Studies ◽  
Immobility Time

Syzygium fruticosum (SF), a valuable Bangladeshi fruit, is considered an alternative therapeutic agent. Mainly, seeds are used as nutritional phytotherapy to ease physical and mental status by preventing chronic diseases. Here, we scrutinized the S. fruticosum seed’s fundamental importance in traditional medicine by following an integrated approach combining in vivo, in vitro, and in silico studies. The SF was fractionated with different solvents, and the ethyl acetate fraction of SF (EaF-SF) was further studied. Mice treated with EaF-SF (200 and 400 mg/kg) manifested anxiolysis evidenced by higher exploration in elevated plus maze and hole board tests. Similarly, a dose-dependent drop of immobility time in a forced swimming test ensured significant anti-depressant activity. Moreover, higher dose treatment exposed reduced exploratory behaviour resembling decreased movement and prolonged sleeping latency with a quick onset of sleep during the open field and thiopental-induced sleeping tests, respectively. In parallel, EaF-SF significantly (p < 0.001) and dose-dependently suppressed acetic acid and formalin-induced pain in mice. Also, a noteworthy anti-inflammatory activity and a substantial (p < 0.01) clot lysis activity (thrombolytic) was observed. Gas chromatography-mass spectrometry (GC–MS) analysis resulted in 49 bioactive compounds. Among them, 12 bioactive compounds with Lipinski’s rule and safety confirmation showed strong binding affinity (molecular docking) against the receptors of each model used. To conclude, the S. fruticosum seed is a prospective source of health-promoting effects that can be an excellent candidate for preventing degenerative diseases.

Neurotrophic Properties of Silexan, an Essential Oil from the Flowers of Lavender-Preclinical Evidence for Antidepressant-Like Properties

2020 ◽  
Vol 54 (01) ◽  
pp. 37-46
Author(s):  
Kristina Friedland ◽  
Giacomo Silani ◽  
Anita Schuwald ◽  
Carola Stockburger ◽  
Egon Koch ◽  
...  
Keyword(s):  
Essential Oil ◽  
Hippocampal Neurons ◽  
Day Treatment ◽  
Neuronal Cell ◽  
Antidepressant Activity ◽  
In Vivo Models ◽  
Antidepressant Effects ◽  
Primary Hippocampal Neurons

Abstract Background Silexan, a special essential oil from flowering tops of lavandula angustifolia, is used to treat subsyndromal anxiety disorders. In a recent clinical trial, Silexan also showed antidepressant effects in patients suffering from mixed anxiety-depression (ICD-10 F41.2). Since preclinical data explaining antidepressant properties of Silexan are missing, we decided to investigate if Silexan also shows antidepressant-like effects in vitro as well as in vivo models. Methods We used the forced swimming test (FST) in rats as a simple behavioral test indicative of antidepressant activity in vivo. As environmental events and other risk factors contribute to depression through converging molecular and cellular mechanisms that disrupt neuronal function and morphology—resulting in dysfunction of the circuitry that is essential for mood regulation and cognitive function—we investigated the neurotrophic properties of Silexan in neuronal cell lines and primary hippocampal neurons. Results The antidepressant activity of Silexan (30 mg/kg BW) in the FST was comparable to the tricyclic antidepressant imipramine (20 mg/kg BW) after 9-day treatment. Silexan triggered neurite outgrowth and synaptogenesis in 2 different neuronal cell models and led to a significant increase in synaptogenesis in primary hippocampal neurons. Silexan led to a significant phosphorylation of protein kinase A and subsequent CREB phosphorylation. Conclusion Taken together, Silexan demonstrates antidepressant-like effects in cellular as well as animal models for antidepressant activity. Therefore, our data provides preclinical evidence for the clinical antidepressant effects of Silexan in patients with mixed depression and anxiety.

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