Arumugam meyyappan | Jadavpur University (original) (raw)

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Papers by Arumugam meyyappan

Research paper thumbnail of Isolation of an unusual metabolite 2-allyloxyphenol from a marine actinobacterium, its biological activities and applications

Applied microbiology …, Jan 1, 2010

Research paper thumbnail of Antibacterial Activity and Anticorrosive Efficiency of Aqueous Methanolic Extract of< em> Artemisia pallens</em>(Asteraceae) and Its Major Constituent

… of Complementary and …, Jan 1, 2009

An aqueous-methanolic [methanol:water (1:1)] extract of the whole plant of Artemisia pallens (Fam... more An aqueous-methanolic [methanol:water (1:1)] extract of the whole plant of Artemisia pallens (Family: Asteraceae) has shown good antibacterial activity against Pseudomonas aeruginosa and Shigella flexneri at the concentration of 100 mg/mL. The activity-guided fractionation ...

Research paper thumbnail of Streptomyces sundarbansensis sp. nov., a novel actinomycete that produces 2-allyloxyphenol

… of Systematic and …, Jan 1, 2010

Page 1. Streptomyces sundarbansensis 1 Streptomyces sundarbansensis sp. nov., a novel actinomycet... more Page 1. Streptomyces sundarbansensis 1 Streptomyces sundarbansensis sp. nov., a novel actinomycete that 1 produces 2-allyloxyphenol 2 3 Meyyappan Arumugam, Anindita Mitra, Arnab Pramanik, Malay Saha, Ratan Gachhui § 4 and Joydeep Mukherjee* 5 6 ...

Research paper thumbnail of Antioxidant and antibacterial activities of bark extracts from Commiphora berryi and Commiphora caudata.

Natural product …, Jan 1, 2011

This study investigates the in vitro antioxidant and antimicrobial activities of eight extracts o... more This study investigates the in vitro antioxidant and antimicrobial activities of eight extracts obtained from the dried barks of Commiphora berryi and Commiphora caudata (Burseraceae). The radical scavenging activity was assessed by 1,1-diphenyl-2-picryl hydrazyl (DPPH) and nitric oxide assays. The methanolic extracts of C. berryi and C. caudata showed significant DPPH radical scavenging activity, with IC₅₀ values of 26.92 and 21.16 µg mL⁻¹, respectively, and low radical scavenging activity against the nitric oxide assay. The antimicrobial activity of the plants was tested against the Gram-positive and Gram-negative bacteria. The ethyl acetate, chloroform and petroleum ether extracts of C. berryi showed good antibacterial activity against Pseudomonas aeruginosa, with a minimum inhibitory concentration (MIC) of 0.26 mg mL⁻¹, whereas the ethyl acetate and methanol extracts of C. caudata showed moderate antimicrobial activity with an MIC of more than 2.0 mg mL⁻¹ against P. aeruginosa compared to the petroleum ether and chloroform extracts, which showed an MIC of 1.1 mg mL⁻¹. The methanolic extracts of C. berryi and C. caudata also showed moderate cytotoxic activity against a human mammary carcinoma cell line (MCF-7), with values IC₅₀ of 82.6 and 88.4 µg mL⁻¹, respectively.

Research paper thumbnail of Isolation of an unusual metabolite 2-allyloxyphenol from a marine actinobacterium, its biological activities and applications

Applied microbiology …, Jan 1, 2010

Research paper thumbnail of Antibacterial Activity and Anticorrosive Efficiency of Aqueous Methanolic Extract of< em> Artemisia pallens</em>(Asteraceae) and Its Major Constituent

… of Complementary and …, Jan 1, 2009

An aqueous-methanolic [methanol:water (1:1)] extract of the whole plant of Artemisia pallens (Fam... more An aqueous-methanolic [methanol:water (1:1)] extract of the whole plant of Artemisia pallens (Family: Asteraceae) has shown good antibacterial activity against Pseudomonas aeruginosa and Shigella flexneri at the concentration of 100 mg/mL. The activity-guided fractionation ...

Research paper thumbnail of Streptomyces sundarbansensis sp. nov., a novel actinomycete that produces 2-allyloxyphenol

… of Systematic and …, Jan 1, 2010

Page 1. Streptomyces sundarbansensis 1 Streptomyces sundarbansensis sp. nov., a novel actinomycet... more Page 1. Streptomyces sundarbansensis 1 Streptomyces sundarbansensis sp. nov., a novel actinomycete that 1 produces 2-allyloxyphenol 2 3 Meyyappan Arumugam, Anindita Mitra, Arnab Pramanik, Malay Saha, Ratan Gachhui § 4 and Joydeep Mukherjee* 5 6 ...

Research paper thumbnail of Antioxidant and antibacterial activities of bark extracts from Commiphora berryi and Commiphora caudata.

Natural product …, Jan 1, 2011

This study investigates the in vitro antioxidant and antimicrobial activities of eight extracts o... more This study investigates the in vitro antioxidant and antimicrobial activities of eight extracts obtained from the dried barks of Commiphora berryi and Commiphora caudata (Burseraceae). The radical scavenging activity was assessed by 1,1-diphenyl-2-picryl hydrazyl (DPPH) and nitric oxide assays. The methanolic extracts of C. berryi and C. caudata showed significant DPPH radical scavenging activity, with IC₅₀ values of 26.92 and 21.16 µg mL⁻¹, respectively, and low radical scavenging activity against the nitric oxide assay. The antimicrobial activity of the plants was tested against the Gram-positive and Gram-negative bacteria. The ethyl acetate, chloroform and petroleum ether extracts of C. berryi showed good antibacterial activity against Pseudomonas aeruginosa, with a minimum inhibitory concentration (MIC) of 0.26 mg mL⁻¹, whereas the ethyl acetate and methanol extracts of C. caudata showed moderate antimicrobial activity with an MIC of more than 2.0 mg mL⁻¹ against P. aeruginosa compared to the petroleum ether and chloroform extracts, which showed an MIC of 1.1 mg mL⁻¹. The methanolic extracts of C. berryi and C. caudata also showed moderate cytotoxic activity against a human mammary carcinoma cell line (MCF-7), with values IC₅₀ of 82.6 and 88.4 µg mL⁻¹, respectively.

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