Antibacterial activity of the essential oil and extracts of Satureja hortensis against plant pathogenic bacteria and their potential use as seed disinfectants

The antimicrobial activity of ginger extracts ( cold-water, hot-water, ethanolic and essential oil ) against some of pathogenic bacteria ( Escherichia coli , Salmonella sp , Klebsiella sp , Serratia marcescens, Vibrio cholerae , Staphylococcus aureus , Streptococcus sp) was investigated using Disc diffusion method , and the results were compared with the antimicrobial activity of 12 antibiotics on the same bacteria . The results showed that the ginger extracts were more effective on gram-positive bacteria than gram-negative . V. cholerae and S. marcescens,were the most resistant bacteria to the extracts used , while highest inhibition was noticed against Streptococcus sp (28 mm) . The ethanolic extract showed the broadest antibacterial activity ( 11 to 28 mm ) , in comparison with moderate activity of essential oil , it was observed that the cold-water extract was more effective on the bacteria than hot-water extract . Ginger ethanolic extract presented higher diameter of inhibition zone for Streptococcus sp than in Ciprofloxacin , Cefotaxime , Cefalotin , Cephalexin and Cephaloridine , also it was found a similarity between the higher inhibition zones of ethanolic extract of ginger and some antibiotics for S. aureus , E. coli , Salmonella sp and Klebsiella sp . V. cholerae and S. marcescens,also highly resistant to antibiotics . Phytochemical analysis of ethanolic extract of ginger revealed the present of glycosides, terpenoids, flavonids and phenolic compounds

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Antibacterial Activity of Essential Oils of Origanum bilgeri, Origanum onites, Satureja spicigera Leaves Against Agricultural Plant Pathogenic Bacteria

Journal of Essential Oil Bearing Plants ◽

10.1080/0972060x.2021.2000504 ◽

2021 ◽

Vol 24 (5) ◽

pp. 1159-1168

Author(s):

Tunay Karan ◽

Sabriye Belguzar ◽

Bedrettin Selvi

Keyword(s):

Antibacterial Activity ◽

Essential Oils ◽

Pathogenic Bacteria ◽

Agricultural Plant ◽

Plant Pathogenic Bacteria ◽

Origanum Onites

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Antibacterial Activity of Endostemon tereticaulis (Poir.) M. Ashby Essential Oil and Ethanolic Extract Against Resistant Pathogenic Bacteria

Natural Product Communications ◽

10.1177/1934578x20953252 ◽

2020 ◽

Vol 15 (9) ◽

pp. 1934578X2095325

Author(s):

Bala Namata Abba ◽

Abderrahmane Romane ◽

Amadou Tidjani Ilagouma

Keyword(s):

Escherichia Coli ◽

Staphylococcus Aureus ◽

Antibacterial Activity ◽

Essential Oil ◽

Traditional Medicine ◽

Pathogenic Bacteria ◽

Ethanolic Extract ◽

Mass Spectrometry Analysis ◽

Gas Chromatography Mass Spectrometry ◽

Minimal Bactericidal Concentration

Endostemon tereticaulis (poir.) M.Ashby is a species of the Lamiaceae family present in Niger. This plant is used in traditional medicine due to its various biological potentialities. The present study investigated the chemical composition of the essential oil and the antibacterial activity of the essential oil and ethanolic extract of Endostemon tereticaulis against resistant pathogenic bacteria. Gas chromatography-mass spectrometry analysis of the essential oil led to the identification of 43 compounds representing 99.55% of the total essential oil. The major components were caryophyllene oxide (15.17%) followed by α-humulene (13.96%), α-copaene (11.75%), ( E)-β-caryophyllene (8.44%), and δ-cadinene (6.78%). The antibacterial activity was tested against multiresistant Acinetobacter baumannii P1483, Salmonella spp. H1548, extended-spectrum β-lactamase- Escherichia coli Bu8566, Enterobacter cloacae Bu147, Proteus mirabilis Bu190 , Pseudomonas aeruginosa (ATCC 27853), Klebsiella pneumoniae (ATCC 700603), Escherichia coli (ATCC 25922), Enterococcus faecium H3434, methicillin-resistant Staphylococcus aureus P1123, and Staphylococcus aureus (ATCC 25923). The antibacterial assays revealed that the essential oil was more active than the ethanolic extract against the studied bacteria with minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) values ranging from 0.06 to 2 mg/mL. Also, the ethanolic extract was effective against the bacteria tested with MIC and MBC values ranging from 0.12 to 3 mg/mL. This study showed that Endostemon tereticaulis essential oil is rich in bioactive compounds. Ethanolic extract and essential oil exhibited potential antibacterial activity. These results provide a scientific basis for the use of this plant in traditional medicine. The current study described for the first time the antibacterial activity of Endostemon tereticaulis.

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Anti-bacterial Activity of Alginate Based Edible Coating Solution Added with Lemongrass Essential Oil Against Some Pathogenic Bacteria

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/934/1/012023 ◽

2021 ◽

Vol 934 (1) ◽

pp. 012023

Author(s):

H E Irianto ◽

D B Marpaung ◽

Ggiyatmi ◽

D Fransiska ◽

I Basriman

Keyword(s):

Antibacterial Activity ◽

Essential Oil ◽

Antibacterial Agent ◽

Pathogenic Bacteria ◽

Antibacterial Agents ◽

Food Products ◽

Edible Coating ◽

Edible Coatings ◽

Coating Solution ◽

Lemongrass Essential Oil

Abstract Edible coating is a thin layer that can be made of several materials, one of which is polysaccharides, such as alginates, carrageenan, agar, chitin, chitosan, pectin, starch, cellulose derivatives, and gums. The application of food products with edible coatings has been widely carried out and has been proven to improve quality and extend the shelf life of the product. Antibacterial agent can be added to improve the performance of edible coating. This study was aimed to explore the potential of lemongrass essential oil as an antibacterial agent in alginate based antibacterial edible coating solutions, especially against pathogenic bacteria. Edible coating is made of alginate powder, modified cassava flour (Mocaf), beeswax, glycerol and antibacterial agent. The additional levels of lemongrass essential oil into edible coating formula were 0.25, 1.50 and 0.75%. The antibacterial activity of the edible coating solution produced was tested against Escherichia coli, Staphylococcus aureus, Salmonella, and Pseudomonas aeruginosa by employing a disk diffusion testing method. Antibacterial agents used in previous studies to develop alginate-based antibacterial edible coatings and potential applications of the developed alginate-based edible coatings incorporated with lemongrass essential oil were identified by browsing through the internet. The results showed that various antibacterial agents have been explored to improve the performance of alginate based edible coatings. An antibacterial activity study exhibited that the highest antibacterial activity was found in the edible coating with the addition of 0.50% lemongrass essential oil, except for S. aureus at the addition level of 0.75%. This study suggests that the addition of lemongrass essential oil for the manufacture of alginate based edible coating solution is 0.50%. The potential uses of edible coatings made from alginate with the addition of lemongrass essential oil are to coat various animal and plant based food products.

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Gc-Ms Analysis and Antibacterial Activity of Mangosteen Leaf Extracts against Plant Pathogenic Bacteria

American Journal of Plant Sciences ◽

10.4236/ajps.2016.77096 ◽

2016 ◽

Vol 07 (07) ◽

pp. 1013-1020 ◽

Cited By ~ 4

Author(s):

Qamar Mohammed Naji Alsultan ◽

Kamaruzaman Sijam ◽

Tavga Sulaiman Rashid ◽

Khairulmazmi Bin Ahmad

Keyword(s):

Antibacterial Activity ◽

Pathogenic Bacteria ◽

Leaf Extracts ◽

Plant Pathogenic Bacteria ◽

Ms Analysis

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IN VITRO ANTIMICROBIAL ACTIVITY OF SOME ESSENTIAL OILS AGAINST BACTERIAL PATHOGENS CAUSING SKIN DISEASES IN VAPOR PHASE

International Journal of Applied Pharmaceutics ◽

10.22159/ijap.2019.v11s5.t0084 ◽

2019 ◽

pp. 113-115

Author(s):

PURIT PATTANAPANIT ◽

SUNISA MITHONGLANG ◽

SUNITA MITHONGLANG ◽

SURACHAI TECHAOEI

Keyword(s):

Antimicrobial Activity ◽

Antibacterial Activity ◽

Essential Oil ◽

Essential Oils ◽

Pathogenic Bacteria ◽

Antibacterial Properties ◽

Diffusion Method ◽

Syzygium Aromaticum ◽

Aromatic Plants ◽

Volatile Oils

Objective: The objective of this study was to evaluate the antimicrobial activity of volatile oils from aromatic plants against pathogenic bacteria.Methods: Thai aromatic plants such as Pogostemon cablin (Blanco) Benth (Patchouli oil), Cymbopogon nardus Rendle (Citronella grass oil), Pelargoniumroseum (Geranium oil), Syzygium aromaticum (L.) Merrill and Perry (clove oil), Cinnamomum spp.(cinnamon oil), and Cymbopogon citratus (DC.) Stapf.(lemongrass oil) were selected. Essential oils were obtained by water distillation and were stored at 4°C until use. Five human pathogenic bacteria wereobtained from Thai traditional Medicine College, Rajamangala University of Technology, Staphylococcus epidermidis, Escherichia coli, Staphylococcusaureus, methicillin-resistant S. aureus (MRSA), and Pseudomonas aeruginosa. The antibacterial activity of volatile oils was determined by disc-diffusionassay. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of each essential oil were determined.Results: Our study showed that 10% of essential oil from Cinnamomum spp. was the most potential against S. aureus, MRSA, and E. coli when assayedby disc-diffusion method with inhibition zones ranging from 37.66±0.57 to 45.33±1.15 mm and from 29.33±0.57 to 36.00±1.00 for lemongrass oilwith MIC and MBC of 1.25%.Conclusion: From this study, it can be concluded that some essential oils have potential antibacterial activity. The present investigation providessupport to the antibacterial properties of essential oils and will be applied to health-care product as aroma antibacterial products.

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