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- W2894930295 abstract "Bamboos are described as one of the most important renewables, easily obtained, and valuable of all forest resources. Brazil is the country with the greatest diversity of bamboo species in the New World [1]. One of the most important bamboo groups growing in South America belongs to the Guadua genus, from which two species, G. angustifolia Kunth. and G. chacoensis (Rojas Acosta) Londono & P.M. Peterson, are morphologically closely related. Due to the taxonomic difficulties presented by the Guadua complex, the main objective of this work was to evaluate the potential of their volatile oils for distinguishing the closely related species and to evaluate new potential applications for these plants. Leaves of the taxa were collected at an Experimental Unit from the Agronomical Institute from Campinas (IAC) located in Tatui-SP. The essential oils were obtained by hydrodistillation for 4 h, and component identification was performed by GC/MS [2]. The yields were found to be 0.027% and 0.00079% (w/w), for G. angustifolia and G. chacoensis , respectively . Terpenes and terpene-related compounds accounted for most of the compositions of the two samples. The major compounds of G. angustifolia oil were hexahydrofarnesyl acetone (23.1%) and ( Z )-phytol (21.3%), while G. chacoensis oil was characterized by ( E )-β-ionone (8.8%), hexadecanoic acid (6.8%), hexadecenoic acid (6.5%), ( Z )-phytol (5.3%) and ( E )-α-ionone (5.0%). The antimicrobial activity was assayed by a microdilution method in microplates [2] against Aspergillus brasiliensis , Candida albicans , Escherichia coli , Pseudomonas aeruginosa and Staphylococcus aureus ; none of the oils exerted any considerable activity (MIC > 250 µg/mL), as only extracts with MIC < 100 µg/mL can be considered as candidates for developing new antimicrobial agents [3]." @default.
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- W2894930295 date "2018-10-04" @default.
- W2894930295 modified "2023-09-27" @default.
- W2894930295 title "Chemical composition and antimicrobial properties of the essential oils of two Guadua Kunth species (Poaceae-Bambusoideae)" @default.
- W2894930295 hasPublicationYear "2018" @default.
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