Efficacy of chemically characterized Ocimum gratissimum L. essential oil as an antioxidant and a safe plant based antimicrobial against fungal and aflatoxin B1 contamination of spices

Prakash, Bhanu; Shukla, Ravindra; Singh, Priyanka; Mishra, Prashant; Dubey, Nawal Kishore; Kharwar, Ravindra N.

doi:10.1016/j.foodres.2010.10.002

Cited by 136 publications

(83 citation statements)

References 27 publications

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“…On the other hand, Kpoviessi et al, 31 found that p-cymene was predominant in O. gratissimum, followed by thymol and γ-terpinene. The investigated chemotype differs from those reported previously, which were the eugenol type 12,27,34 , linalool type 39 , methyl cinnamate type 40 and ethyl cinnamate type 41 . Variations of the percentages of chemical constituents were observed according to daytime of collection, including major constituent as thymol (28.3-37.7 %), γ-terpinene (12.5-19.3 %) and p-cymene (12.1-18 %).…”

Section: Results and Discussion Ield And Chemical Composition Of Essecontrasting

confidence: 85%

Chemical Composition and Antimicrobial Activity of Essential Oils ofOcimum basilicum,Ocimum canumandOcimum gratissimumin Function of Harvesting Time

Mith

Yayi-Ladékan

Kpoviessi

et al. 2016

Journal of Essential Oil Bearing Plants

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Abstract:The chemical composition of essential oils obtained by hydrodistillation from aerial parts of Ocimum basilicum, Ocimum canum and Ocimum gratissimum from Benin as affected by harvesting time, were analyzed by GC-FID (Gas chromatography-Flame ionization detector) and GC-MS (Gas chromatographyMass spectrometry). Based on the composition analysis, major components were as follows: estragol (43.0 -44.7 %) and linalool (24.6 -29.8 %) in O. basilicum oils; carvacrol (12.0 -30.8 %) and p-cymene (19.5 -26.2 %) in O. canum oils; thymol (28.3-37.7 %) and γ-terpinene (12.5-19.3 %) in O. gratissimum oils. Disc diffusion and broth microdilution assays were used to evaluate the antibacterial activity of essential oils and their main components against two foodborne bacteria, Listeria monocytogenes and Salmonella enterica serotype Typhimurium. The tested oils and their components exhibited notable antimicrobial activities against L. monocytogenes and S. Typhimurium. The O. canum and O. gratissimum oils collected at 7h and 19h showed significant higher activities against L. monocytogenes and S. Typhimurium (MICs and MBCs 0.34 -2.5 μL/ mL) (p < 0.05), whereas O. basilicum showed lower activity (MICs and MBCs 2.0 -8.0 μL/mL) at any daytime of harvest, the weakest being at 19h (MIC and MBC 12.0 -32.0 μL/mL). The daytime of harvest can influence the composition of oils and their activities on bacteria.

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Section: Results and Discussion Ield And Chemical Composition Of Essecontrasting

confidence: 85%

Chemical Composition and Antimicrobial Activity of Essential Oils ofOcimum basilicum,Ocimum canumandOcimum gratissimumin Function of Harvesting Time

Mith

Yayi-Ladékan

Kpoviessi

et al. 2016

Journal of Essential Oil Bearing Plants

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“…Some were carried out to discover plant products inhibiting pathogenic fungi without environmental health damage. Prakash et al [11] recommended the use of Ocimum gratissimum EO in spices as a nontoxic antimicrobial and anti-aflatoxigenic agent.…”

Section: Discussionmentioning

confidence: 99%

Anti-dermatophyte efficacy and environmental safety of some essential oils commercial and in vitro extracted pure and combined against four keratinophilic pathogenic fungi

Ibrahim

El-Salam

2015

Environ Health Prev Med

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Aim Establish new biocontrol practices with low persistence in the environment against dermatophyte causing mycosis. Methods Antimycotic activity of twenty-six plant-derived commercial essential oils (EOs) was evaluated against four dermatophyte keratinophilic fungi (Microsporum canis, Epidermophyton floccosum, Trichophyton rubrum and Trichophyton mentagrophytes). Commercial EOs which showed the strongest mycelial growth inhibitions were selected and re-extracted in vitro from fresh plant samples. Minimal inhibition concentration (MIC) and antifungal index (AI) of pure and combined extracted oils and were evaluated. All samples were collected and examined during the year of 2014. Results The results revealed that commercial EOs of Prunus armeniaca, Prunus dulcis var. amara, Olea europaea and Mentha piperita were the most potent antidermatophyte. The mixture of the extracted four oils was the strongest fungicides followed by the alternative two-oil combined extractions then pure extracted oils. MIC was at 50, 25 and 12.5 lg/disc for pure oils, two-oil combinations and four-oil mixture, respectively. Achieved values of AI were found variable. Conclusion Using of natural products like plant-derived EOs instead of chemotherapy on pathogens can be regarded as an environmental safety mode of diseases control.

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“…It is found in the tropical and warm temperature areas. This plant is enriched with anti-oxidant compounds (Prakash et al, 2011). It has important pharmacological effects including the antibacterial (Nakamura et al, 1999), hypoglycemic activity (Aguiyi et al, 2000) and also improves the liver function.…”

Section: Ocimum Gratissimummentioning

confidence: 99%

Anti-fibrotic activity of medicinal plants

Akhtar

Ahmad

2017

Bangladesh J Pharmacol

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<p class="Abstract">The aim of this review is to report the medicinal plants which have anti- fibrotic effect characterized in different studies. They are summarized which include name of the plants, part used, liver fibrosis model, fraction of plant used and observations. The medicinal plants play an important role in treatment and prevention of liver fibrosis through different physiological mechanism. The effects of medicinal plant may delay the development of liver fibrosis and have potential to reverse or degrade the accumulation of extra cellular matrix. Four different databases are used and 18 plants are included which have the potential for reversal of liver fibrosis. There are also few more plants but they are not characterized well in literature.</p>

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Efficacy of chemically characterized Ocimum gratissimum L. essential oil as an antioxidant and a safe plant based antimicrobial against fungal and aflatoxin B1 contamination of spices

Cited by 136 publications

References 27 publications

Chemical Composition and Antimicrobial Activity of Essential Oils ofOcimum basilicum,Ocimum canumandOcimum gratissimumin Function of Harvesting Time

Chemical Composition and Antimicrobial Activity of Essential Oils ofOcimum basilicum,Ocimum canumandOcimum gratissimumin Function of Harvesting Time

Anti-dermatophyte efficacy and environmental safety of some essential oils commercial and in vitro extracted pure and combined against four keratinophilic pathogenic fungi

Anti-fibrotic activity of medicinal plants

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