Evaluation of Antioxidant Activity and Biotransformation of Fruit: The Effect of In Vitro and Ex Vivo Gut Microbiota Metabolism.

biological effects are attributed to several bioactive metabolites. However, these actions could be altered in vivo by biotransformation reactions mainly via gut microbiota. This study assessed gut microbiota effect on the biotransformation of metabolites both in vitro and ex vivo.

Profile of bioactive compounds in Nymphaea alba L. leaves growing in Egypt: hepatoprotective, antioxidant and anti-inflammatory activity.

Background: Nymphaea alba L. represents an interesting field of study. Flowers have antioxidant and hepatoprotective effects, rhizomes constituents showed cytotoxic activity against liver cell carcinoma, while several Nymphaea species have been reported for their hepatoprotective effects.

Acylated flavonol diglucosides from Ammania auriculata.

Chemical investigation of the extract of the whole Ammania auriculata plant resulted in the identification of 13 polyphenols, including the hitherto unknown flavonoids, kaempferol 3-O-β-(6″-galloylglucopyranoside)-7-O-β-glucopyranoside, and its quercetin analogue. The structures of all isolates were elucidated by conventional methods, spectroscopic analysis, including 1D and 2D NMR, and by HRESI-MS as well.

Comparative study of volatile oil content and antimicrobial activity of pecan cultivars growing in Egypt.

The volatile oils obtained from the leaves of four pecan cultivars growing in Egypt were evaluated for their chemical composition and antimicrobial activity. The selected cultivars (cv.) were Carya illinoinensis (Wangneh.

Seasonal variation in the essential oil composition of Origanum majorana L. cultivated in Egypt.

The hydrodistilled essential oil content of Origanum majorana L. (Lamiaceae) ranged from 2.5-3% with the maximal value (3%) in spring.