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Edilberto R. Silveira - One of the best experts on this subject based on the ideXlab platform.
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Antibacterial activity of essential oils from Psidium and Pilocarpus species of plants
Phytotherapy Research, 1997Co-Authors: Flávia A. Santos, Vietla Satyanarayana Rao, Geanne M. A. Cunha, G.s.b. Viana, A. N. Manoel, Edilberto R. SilveiraAbstract:The antibacterial activity of six essential oils obtained from the leaves of Pilocarpus and Psidium species of plants have been studied. The leaf oils of Psidium guyanensis, Psidium pohlianum and Pilocarpus spicatus showed the most potent antibacterial activity (MIC 52.5–75.0 μg/mL) against Gram-negative Pseudomonas aeruginosa. Against Gram-positive Staphylococcus aereus, P. guyanensis demonstrated marked activity (MIC 75.0±15.0 μg/mL) followed by P. spicatus and Pilocarpus pauciflorus (MIC 100.0±28.9 μg/mL). The efficacy of some tested oils against P. aeruginosa, the most resistant organism may have significant clinical implication. © 1997 John Wiley & Sons, Ltd.
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Studies on the Neuropharmacological Effects of Psidium guyanensis and Psidium pohlianum Essential Oils
Phytotherapy Research, 1996Co-Authors: Flávia A. Santos, Vietla Satyanarayana Rao, Edilberto R. SilveiraAbstract:The essential oils extracted from the leaves of Psidium guyanensis Pers. and Psidium pohlianum Berg, were evaluated for their neuropharmacological effects. Both the oils (400 mg/kg, p.o.) in mice displayed potentiation of pentobarbital sleeping time and an increase of immobility time in the behavioural forced swimming test. Also at a similar dose, they reduced the mortality associated with amphetamine toxicity and pentylenetetrazol-induced convulsions. The Psidium essential oils demonstrated no influence on small intestinal secretion but caused significant inhibition of intestinal transit. No overt toxicity was observed in mice that received essential oils orally up to 4 g/kg. The results suggest a probable depressant action of the essential oils of Psidium on central and peripheral nervous systems.
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Volatile Constituents of Psidium pohlianum Berg, and Psidium guyanensis Pers.
Journal of Essential Oil Research, 1994Co-Authors: Manoel Andrade Neto, Edilberto R. Silveira, J. W. Alencar, Adriano N. Cunha, Terezinha G. BatistaAbstract:ABSTRACT The chemical composition of two wild Psidium species (Psidium pohlianum Berg, and P. guyanensis Pers.) collected in the National Park of Araripe, Crato-CE, Northeast of Brazil, are described and compared. Besides 1,8-cineole as the major constituent (40.5–60.3%), α-pinene, β-eudesmol and γ-eudesmol were found to be common compounds in both species. β-Pinene, elemol and spathulenol were found only in P. guyanensis, whereas p-cymene and α-terpinyl acetate were identified only in P. pohlianum.
T. K. Lim - One of the best experts on this subject based on the ideXlab platform.
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Psidium cattleianum ‘Yellow Strawberry Guava’
Edible Medicinal And Non Medicinal Plants, 2011Co-Authors: T. K. LimAbstract:Psidium cattleianum Afzel. ex Sabine ‘Yellow Strawberry Guava’. See Psidium cattleianum. Lemon Guava, Yellow Strawberry Guava, Yellow Cattley Guava Brazil: Araca, Araca-De-Coroa, Aracazeiro (Portuguese);
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Psidium cattleianum ‘Red Strawberry Guava’
Edible Medicinal And Non Medicinal Plants, 2011Co-Authors: T. K. LimAbstract:Episyzygium oahuense Suess. & A. Ludw., Eugenia ferruginea Sieber ex C.Presl, Eugenia oxygona Koidz., Eugenia pseudovenosa H.Perrier, Eugenia urceolata Cordem., Guajava cattleiana (Afzel. ex Sabine) Kuntze, Guajava obovata (Mart. ex DC.) Kuntze, Psidium cattleianum f. lucidum O.Deg., Psidium cattleianum var. littorale (Raddi) Fosberg, Psidium cattleianum var. littorale (Raddi) Mattos, nom. illeg., Psidium cattleianum var. purpureum Mattos, Psidium cattleianum var. pyriformis Mattos, Psidium coriaceum var. grandifolium O.Berg, Psidium coriaceum var. longipes O.Berg, Psidium coriaceum var. obovatum O.Berg, Psidium ferrugineum C.Presl, Psidium indicum Bojer nom. inval., Psidium littorale Raddi, Psidium littorale var. longipes (O.Berg) Fosberg, Psidium obovatum Mart. ex DC., Psidium variabile O.Berg.
Pablo Luis B. Figueiredo - One of the best experts on this subject based on the ideXlab platform.
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Monoterpenes and Sesquiterpenes of Essential Oils from Psidium Species and Their Biological Properties
Molecules, 2021Co-Authors: Renan Campos E Silva, Jamile S. Da Costa, Raphael O. De Figueiredo, William N. Setzer, Joyce Kelly R. Da Silva, José Guilherme S. Maia, Pablo Luis B. FigueiredoAbstract:Psidium (Myrtaceae) comprises approximately 266 species, distributed in tropical and subtropical regions of the world. Psidium taxa have great ecological, economic, and medicinal relevance due to their essential oils’ chemical diversity and biological potential. This review reports 18 Psidium species growing around the world and the chemical and biological properties of their essential oils. Chemically, 110 oil records are reported with significant variability of volatile constituents, according to their seasonality and collection sites. Monoterpenes and sesquiterpenes with acyclic (C10 and C15), p-menthane, pinane, bisabolane, germacrane, caryophyllane, cadinane, and aromadendrane skeleton-types, were the primary constituents. The essential oils showed various biological activities, including antioxidant, antifungal, antibacterial, phytotoxic, larvicidal, anti-inflammatory, and cytotoxic properties. This review contributes to the Psidium species rational and economic exploration as natural sources to produce new drugs.
Flávia A. Santos - One of the best experts on this subject based on the ideXlab platform.
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Antibacterial activity of essential oils from Psidium and Pilocarpus species of plants
Phytotherapy Research, 1997Co-Authors: Flávia A. Santos, Vietla Satyanarayana Rao, Geanne M. A. Cunha, G.s.b. Viana, A. N. Manoel, Edilberto R. SilveiraAbstract:The antibacterial activity of six essential oils obtained from the leaves of Pilocarpus and Psidium species of plants have been studied. The leaf oils of Psidium guyanensis, Psidium pohlianum and Pilocarpus spicatus showed the most potent antibacterial activity (MIC 52.5–75.0 μg/mL) against Gram-negative Pseudomonas aeruginosa. Against Gram-positive Staphylococcus aereus, P. guyanensis demonstrated marked activity (MIC 75.0±15.0 μg/mL) followed by P. spicatus and Pilocarpus pauciflorus (MIC 100.0±28.9 μg/mL). The efficacy of some tested oils against P. aeruginosa, the most resistant organism may have significant clinical implication. © 1997 John Wiley & Sons, Ltd.
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Studies on the Neuropharmacological Effects of Psidium guyanensis and Psidium pohlianum Essential Oils
Phytotherapy Research, 1996Co-Authors: Flávia A. Santos, Vietla Satyanarayana Rao, Edilberto R. SilveiraAbstract:The essential oils extracted from the leaves of Psidium guyanensis Pers. and Psidium pohlianum Berg, were evaluated for their neuropharmacological effects. Both the oils (400 mg/kg, p.o.) in mice displayed potentiation of pentobarbital sleeping time and an increase of immobility time in the behavioural forced swimming test. Also at a similar dose, they reduced the mortality associated with amphetamine toxicity and pentylenetetrazol-induced convulsions. The Psidium essential oils demonstrated no influence on small intestinal secretion but caused significant inhibition of intestinal transit. No overt toxicity was observed in mice that received essential oils orally up to 4 g/kg. The results suggest a probable depressant action of the essential oils of Psidium on central and peripheral nervous systems.
Renan Campos E Silva - One of the best experts on this subject based on the ideXlab platform.
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Monoterpenes and Sesquiterpenes of Essential Oils from Psidium Species and Their Biological Properties
Molecules, 2021Co-Authors: Renan Campos E Silva, Jamile S. Da Costa, Raphael O. De Figueiredo, William N. Setzer, Joyce Kelly R. Da Silva, José Guilherme S. Maia, Pablo Luis B. FigueiredoAbstract:Psidium (Myrtaceae) comprises approximately 266 species, distributed in tropical and subtropical regions of the world. Psidium taxa have great ecological, economic, and medicinal relevance due to their essential oils’ chemical diversity and biological potential. This review reports 18 Psidium species growing around the world and the chemical and biological properties of their essential oils. Chemically, 110 oil records are reported with significant variability of volatile constituents, according to their seasonality and collection sites. Monoterpenes and sesquiterpenes with acyclic (C10 and C15), p-menthane, pinane, bisabolane, germacrane, caryophyllane, cadinane, and aromadendrane skeleton-types, were the primary constituents. The essential oils showed various biological activities, including antioxidant, antifungal, antibacterial, phytotoxic, larvicidal, anti-inflammatory, and cytotoxic properties. This review contributes to the Psidium species rational and economic exploration as natural sources to produce new drugs.
