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Influencia del medio de cultivo en la Propagación In Vitro de Espécies de Peperomia de las Regiones de Lambayeque y Cajamarca
(Universidad Nacional de TrujilloPE, 2021)
Las técnicas desarrolladas por la biotecnología vegetal, entre las que figuran el cultivo de
tejidos vegetales in vitro, constituye una herramienta fundamental que ha servido para
resolver múltiples problemas en la ...
Resolution and Absolute Configuration Assignment of a Natural Racemic Chromane from Peperomia obtusifolia (Piperaceae)
(WILEY-LISS, 2009)
The resolution of the natural racemic chromane 3,4-dihydro-5-hydroxy-2,7-dimethyl-8-(3 ``-methyl-2 ``-butenyl)-2-(4`-methyl-1`,3`-pentadienyl)-2H-1-benzopyran-6-carboxylic acid (1) isolated from the leaves of Peperomia ...
Dicroísmo circular vibracional e eletrônico na determinação da configuração absoluta de benzopiranos de Peperomia obtusifolia e Piper gaudichaudianum (Piperaceae): implicações biológicas e biossintéticas
(Universidade Estadual Paulista (Unesp), 2012-02-15)
Estudos fitoquímicos visando o isolamento de benzopiranos quirais foram realizados em Peperomia obtusifolia e Piper gaudichaudianum (Piperaceae). Da espécie P. obtusifolia foram isolados dois cromanos racêmicos, a peperobtusina ...
Absolute configuration reassignment of two chromanes from Peperomia obtusifolia (Piperaceae) using VCD and DFT calculations
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
Previous analysis of the ECD spectra of two prenylated benzopyrans isolated from Peperomia obtusifolia, by means of the helicity rule for the chromane chromophore, resulted in the incorrect assignment of their absolute ...
Further monoterpene chromane esters from Peperomia obtusifolia: VCD determination of the absolute configuration of a new diastereomeric mixture
(PERGAMON-ELSEVIER SCIENCE LTDOXFORD, 2012)
A reinvestigation of the monoterpene chromane ester enriched fraction from Peperomia obtusifolia using chiral chromatography led to the identification of a minor peak, which was elucidated by NMR and HRMS as fenchyl-3,4- ...
Composition and antifungal activity against Candida albicans, Candida parapsilosis, Candida krusei and Cryptococcus neoformans of essential oils from leaves of Piper and Peperomia species
(ACADEMIC JOURNALS, 2010)
This study was addressed to investigate the composition and antifungal activity of essential oils from leaves of Piperaceae species (Piper aduncum, Piper amalago, Piper cernuum, Piper diospyrifolium, Piper crassinervium, ...