Chemical composition, antibacterial and antifungal activities of the essential oil of Haplophyllum tuberculatum from Oman

Al-Burtamani, Suad Khamis S.; Fatope, Majekodunmi O.; Marwah, Ruchi G.; Onifade, A. K.; Al-Saidi, Salim

doi:10.1016/j.jep.2004.08.039

Cited by 208 publications

(128 citation statements)

References 15 publications

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“…Antimicrobial assay was performed by using of the well diffusion method [9]. Chloramphenicol and amphotericin B were used as antibacterial and antifungal controls, respectively.…”

Section: Biological Assaymentioning

confidence: 99%

Nigerasperones A~C, New Monomeric and Dimeric Naphtho-γ-pyrones from a Marine Alga-derived Endophytic Fungus Aspergillus niger EN-13

Zhang

Wang

2007

J Antibiot

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Three new naphtho-g-pyrones, 5-hydroxy-6,8-dimethoxy-2-hydroxymethyl-4H-naphtho [2,3-b]pyran-4-one (1, nigerasperone A), 3,3Ј-dihydro-2,2Ј,5,5Ј-tetrahydroxy-8,8Ј,10,10Ј-tetramethoxy-2,2Ј-dimethyl-(6Ј,9-bi-4H-naphtho[1,2-b]pyran)-4,4Ј-dione (2, nigerasperone B), and 3Ј-hydro-2Ј,5,5Ј,8-tetrahydroxy-6,6Ј,8Ј-trimethoxy-2,2Ј-dimethyl-(7,10Ј-bi-4H-naphtho[2,3-b]pyran)-4,4Ј-dione (3, nigerasperone C), together with nine related known compounds were characterized from Aspergillus niger EN-13, an endophytic fungus isolated from the marine brown alga Colpomenia sinuosa. Their structures were elucidated by detailed analysis of spectroscopic data and by comparison with literature reports. In the cytotoxic assay, these compounds did not show remarkable inhibitory effects against A549 and SMMC-7721 tumor cell lines. However, 3 and several known compounds showed weak antifungal activity against Candida albicans and moderate activity on DPPH scavenging.

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“…Antimicrobial assay was performed by using of the well diffusion method [9]. Chloramphenicol and amphotericin B were used as antibacterial and antifungal controls, respectively.…”

Section: Biological Assaymentioning

confidence: 99%

Nigerasperones A~C, New Monomeric and Dimeric Naphtho-γ-pyrones from a Marine Alga-derived Endophytic Fungus Aspergillus niger EN-13

Zhang

Wang

2007

J Antibiot

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“…Antibacterial assay against E. coli and S. aureus was carried out using the well diffusion method [24]. Chloromycetin was used as a positive control.…”

Section: Amino Acid Analysismentioning

confidence: 99%

New prenylated indole alkaloids from fungus Penicillium sp. derived of mangrove soil sample

Yang¹,

Dong²,

Lin³

et al. 2014

Tetrahedron

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“…In a similar way, distinct domains of chemically heterogeneous surfaces, e.g., those with higher hydrophobicity, are thought to interfere with the motion of the contact angle by hindering the advancement or contraction of the water front and, thus, increasing or decreasing the observed CA. Several models propose a relationship between the measured CAs of a given non-ideal surface and its flat, homogenous component in plants using many quantitative analysis methods [29,30], it had not been studied extensively as the main topic compound [31]. However, recent investigations of γ-Terpinene revealed that the optical properties of the fabricated plasma-polymerized γ-Terpinene (pp-GT) thin films are promising, with transparency to the optical wavelengths and refractive index of 1.57-1.58 (at 500 nm) [26].…”

Section: Introductionmentioning

confidence: 99%

Wetting, Solubility and Chemical Characteristics of Plasma-Polymerized 1-Isopropyl-4-Methyl-1,4-Cyclohexadiene Thin Films

et al. 2014

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Investigations on the wetting, solubility and chemical composition of plasma polymer thin films provide an insight into the feasibility of implementing these polymeric materials in organic electronics, particularly where wet solution processing is involved. In this study, thin films were prepared from 1-isopropyl-4-methyl-1,4-cyclohexadiene (γ-Terpinene) using radio frequency (RF) plasma polymerization. FTIR showed the polymers to be structurally dissimilar to the original monomer and highly cross-linked, where the loss of original functional groups and the degree of cross-linking increased with deposition power. The polymer surfaces were hydrocarbon-rich, with oxygen present in the form of O-H and C=O functional groups. The oxygen content decreased with deposition power, with films becoming more hydrophobic and, thus, less wettable. The advancing and receding contact angles were investigated, and the water advancing contact angle was found to increase from 63.14° to 73.53° for thin films prepared with an RF power of 10 W to 75 W. The wetting envelopes for the surfaces were constructed to enable the prediction of the surfaces' wettability for other solvents. The effect of roughness on the wetting behaviour of the films was insignificant. The polymers were determined to resist solubilization in solvents commonly used in the deposition of organic semiconducting layers, including chloroform and chlorobenzene, with higher stability observed in films fabricated at higher RF power. OPEN ACCESSCoatings 2014, 4 528

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Chemical composition, antibacterial and antifungal activities of the essential oil of Haplophyllum tuberculatum from Oman

Cited by 208 publications

References 15 publications

Nigerasperones A~C, New Monomeric and Dimeric Naphtho-γ-pyrones from a Marine Alga-derived Endophytic Fungus Aspergillus niger EN-13

Nigerasperones A~C, New Monomeric and Dimeric Naphtho-γ-pyrones from a Marine Alga-derived Endophytic Fungus Aspergillus niger EN-13

New prenylated indole alkaloids from fungus Penicillium sp. derived of mangrove soil sample

Wetting, Solubility and Chemical Characteristics of Plasma-Polymerized 1-Isopropyl-4-Methyl-1,4-Cyclohexadiene Thin Films

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