Bioactive Metabolites from the Bark ofFagara macrophylla

Anti-toxoplasma gondii activity of constituents from Balsamocitrus camerunensis L (Rutaceae)

“…The yellowbrown extract obtained was subjected to repeated column chromatography on silica gel, eluting with hexane followed by ethyl acetate in hexane with increasing polarity as mobile phase to obtain compounds 1-5 ( Figure 1). These compounds were in agreement with data reported previously, identifying them as marmin 1 (HEN1), imperatorin 2 (HEN2) (Muller et al, 2004), xanthoxyletin 3 (HEN3), 6,7-Dimethoxycoumarin 4 (HEN4) (Perel'son et al, 1970) and 1-hydroxy-3-methoxy-acridone 5 (HEN5) (Spatafora and Tringaliw, 1997).…”

Examination of the Modified Villavecchia Test for Detecting Sesame Oil

“…However, the oil containing 5 % extra virgin olive oil still did not produce a positive response of the Villavecchia test because these lignans in the samples were lacking a reactive structure able to react with the keto group in the furfural reactant. In sesame lignans, sesamin exists in many plants, such as the bark of Fagara plants and tea seeds [18,19], but sesamolin is present only in sesame seeds. Therefore, with sesamolin and sesamol detection, the Villavecchia test could have good specificity for sesame oil.…”

Evaluation of Alkaloids Isolated from Ruta graveolens as Photosynthesis Inhibitors

“…All alkaloids, 1 – 8 , were added to the system for a new period of stirring (12 h). The discs were dark-adapted for 30 min and chlorophyll a fluorescence was measured at room temperature through a Hansatech Fluorescence Handy PEA (Plant Efficiency Analyzer, King’s Lynn, UK) [ 16 , 25 ].…”