Effect of neem oil on some pathogenic bacteria

Jahan, Tuhin; Begum, Zinnat A.; Sultana, Sayeeda

doi:10.3329/bjp.v2i2.573

Cited by 16 publications

(16 citation statements)

References 1 publication

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“…The volatile oil from the stems and leaves of Chromolaena odorata inhibited the growth of Pseudomonas aeruginosa with an inhibition zone of 32.0±1.0 and 37.50±2.5 mm, respectively. This is in line with the finding of Jahan et al (2007), who confirmed that Azadirachta indica oil (neem oil) was highly sensitivity to isolate of Pseudomonas aeruginosa. The organism has also been found to be susceptible to cider oil, cinnamon oil, lemon oil and vetiver oil.…”

Section: Discussionsupporting

confidence: 80%

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Antimicrobial Assay for the Volatile Oils of Chromolaena odorata and its Inhibition against the Partially Purified and Characterized Extracellular Protease of Pseudomonas aeruginosa

Adeola¹,

Folorunso²,

Raimi³

et al. 2015

Asian J. of Biochemistry

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The recent development in the antimicrobial therapy to meet the challenges of resistant pathogenic bacteria has called for rapid growth in exploring natural products as alternative. The antimicrobial activity of the oils from the leaf and stem of Chromolaena odorata against nine enteric pathogenic bacteria was assessed and compared with commonly used antibiotics. Specifically, we examined the mode of inhibition of these oils on the extracellular protease of Pseudomonas aeruginosa. The inhibition zones of the oils range from 13.0±1.0-43.5±2.5 mm in Salmonella paratyphimurium and Shigella dysenteriae, respectively. Ceftriaxone has the highest inhibition of 26.0±2.0 mm against Salmonella paratyphimurium. There was a significant difference (p<0.05) between the average inhibition of the antibiotics, 5.0±0.82 mm and the volatile oils, 18.0±4.0 mm. Each of the microbes was sensitive to at least one of the oils. The extracellular protease of Pseudomonas aeruginosa had optimal activities at pH 7. protein) was achieved from the crude enzyme with DEAE anion exchange chromatography. The chromatographic peaks may be an evidence of multiple subunits of this enzyme. Therefore, the oil of Chromolaena odorata possessed antimicrobial activity and its ability to inhibit extracellular protease of Pseudomonas aeruginosa will be a possible source of nutraceuticals for clinical purpose.

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Section: Discussionsupporting

confidence: 80%

“…The in vitro activity of a range of essential oils against Pseudomonas aeruginosa has been examined with some medicinal plants (Zuridah et al, 2008;Jahan et al, 2007). There were promising results of antibacterial activities of both aqueous and organic solvents extraction of these medicinal plants (Sukanya et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial Assay for the Volatile Oils of Chromolaena odorata and its Inhibition against the Partially Purified and Characterized Extracellular Protease of Pseudomonas aeruginosa

Adeola¹,

Folorunso²,

Raimi³

et al. 2015

Asian J. of Biochemistry

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“…This dose was found more effective than other two doses (60 and 80 ppm), after five days of incubation. These results are in accordance with the results of Jahan et al (2007). Biosal and Vampire showed excellent work in inhibiting the pathogen growth.…”

Section: Management Of Diseasesupporting

confidence: 82%

“…These inhibition zone recorded from these three extract were found to be 1.583 cm (Table 3) by neem extract, 1.500 cm (Table 4) by garlic extract and onion extract 1.504 cm (Table 5) after five days of incubation. These results are in accordance with the results of Jahan et al (2007), they used the neem oil against some pathogenic bacteria and observed growth inhibition of the bacteria. Bdliya and Dahiru (2006) also reported that neem aqueous extracts reduced significantly the incidence and severity of tuber soft rot, and could therefore be used to reduce losses due to this disease in storage, while ironweed and Siamese cassia aqueous leaf extracts gave moderate control of the disease.…”

Section: Management Of Diseasesupporting

confidence: 81%

Incidence of potato blackleg caused by Pectobacterium atrosepticum in district Chiniot and its management through bio-products

Rashid¹,

Muhammad²,

Muhammad³

et al. 2012

Afr. J. Agric. Res.

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Potato is an important commercial crop of the world. It was reported to be affected by many biotic and abiotic factors. Among biotic factors is a blackleg, a bacterial disease of potato caused by Pectobacterium atrosepticum and is responsible for both quantitative and qualitative losses in the field and in the storage. This disease has been found to be more frequent in the districts of Chiniot. Therefore, a survey was conducted in field's conditions of district Chiniot of Pakistan, as well as cold storages to assess the disease severity in the potato field. For isolation, samples were collected and identification, purification and mass culturing of the isolated of pathogen was also performed. The efficacy of different chemicals, plant extracts and bio-products were studied against isolated pathogen. During the screening trial of fifteen varieties, Cardinal was found immune while Faisalabad white was found to be highly susceptible. Other varieties like Accent, Harmony, Faisalabad Red and Lady Rosette were found resistant, while Desiree, SH70, Everest, Hermes, Orla and Paramount were found moderately resistant. Varietals response against this bacterium was evaluated under natural conditions in the field on weekly basis. Evaluation of different bio-products and plant extracts was carried out under laboratory conditions. Under the laboratory conditions, bio-products produced maximum inhibition zone. Plant extracts namely neem (Azadirachta indica), garlic (Allium sativum), datura (Datura alba) and onion (Allium sepa) also produced a little inhibition zone against the growth of Erwinia.

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“…Similar observations were also made by other investigators (Chaturvedi et al, 2011;Irshad et al, 2011). Jahan et al, (2007) in her study found growth inhibitory effect of neem oil on Salmonella typhi, S. aureus and E coli. Mamman et al, (2013) in their study showed that crude methanolic and aqueous extract of neem leaves was inhibitory to S. aureus, Salmonella spp and E. coli.…”

Section: Discussionmentioning

confidence: 99%

Growth inhibitory effect of ethanolic neem leaves extract on <i>Klebsiella, Salmonella</i> and <i>Staphylococcus aureus</i>

Banna

Parveen

Iqbal

2014

Bangladesh J Pharmacol

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Effect of neem oil on some pathogenic bacteria

Cited by 16 publications

References 1 publication

Antimicrobial Assay for the Volatile Oils of Chromolaena odorata and its Inhibition against the Partially Purified and Characterized Extracellular Protease of Pseudomonas aeruginosa

Antimicrobial Assay for the Volatile Oils of Chromolaena odorata and its Inhibition against the Partially Purified and Characterized Extracellular Protease of Pseudomonas aeruginosa

Incidence of potato blackleg caused by Pectobacterium atrosepticum in district Chiniot and its management through bio-products

Growth inhibitory effect of ethanolic neem leaves extract on <i>Klebsiella, Salmonella</i> and <i>Staphylococcus aureus</i>

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