Results 381 to 390 of about 479,337 (405)

The flavonoids of Allium ursinum

Phytochemistry, 1996
From wild garlic Allium ursinum three new flavonoid glycosides were identified as kaempferol 3-O-beta-neohesperidoside-7-O-[2-O-(trans-p-coumaroyl)]-beta -D- glucopyranoside, kaempferol 3-O-beta-neohesperidoside-7-O-[2-O-(trans-feruloyl)]-beta-D- glucopyranoside, kaempferol 3-O-beta-neohesperidoside-7-O-[2-O-(trans-p-coumaroyl)-3-O-b eta-D ...
CAROTENUTO A, DE FEO V, FATTORUSSO E, LANZOTTI V, MAGNO S, CICALA, CARLA   +5 more
openaire   +4 more sources

STRUKTUR, BIOAKTIVITAS DAN ANTIOKSIDAN FLAVONOID

, 2018
Di antara produk-produk alami, flavonoid  adalah yang sangat menarik untuk dipelajari dan merupakan salah satu senyawa yang menjanjikan  untuk mengobati kanker, antioksidan, bakteri patogen, radang, disfungsi kardio-vaskular, dan lain-lain. Kemampuan dan
Bustanul Arifin, Sanusi Ibrahim
semanticscholar   +1 more source

A review on the dietary flavonoid kaempferol.

Mini-Reviews in Medical Chemistry, 2011
Epidemiological studies have revealed that a diet rich in plant-derived foods has a protective effect on human health. Identifying bioactive dietary constituents is an active area of scientific investigation that may lead to new drug discovery ...
J. Calderón-Montaño, E. Burgos-Morón, C. Pérez-Guerrero, M. López-Lázaro   +3 more
semanticscholar   +1 more source

The flavonoids of Allium neapolitanum

Phytochemistry, 1997
An investigation of the extracts from Allium neapolitanum has led to the isolation of 13 flavonoid glycosides, based on kaempferol, quercetin and isorhamnetin. Four of them are new compounds and have been identified as: kaempferol 3-O-[[2-O-alpha-L-rhamnopyranosyl-4-O-beta-D-glucopyranosyl]-beta-D- glucopyranoside]], isorhamnetin 3-O-[[2-O-alpha-L ...
CAROTENUTO, ALFONSO, FATTORUSSO E, LANZOTTI V, MAGNO S, DE FEO V, CICALA, CARLA   +5 more
openaire   +4 more sources

Antioxidant activity, phenol and flavonoid contents of some selected Iranian medicinal plants

, 2006
In present study, we carried out a systematic record of the relative antioxidant activity in selected Iranian medicinal plant species' extracts. The total phenol varied from 24.1 ± 1 to 289.5 ± 5 mg g -1 in the extracts.
F. Pourmorad, S. Hosseinimehr, N. Shahabimajd   +2 more
semanticscholar   +1 more source

Flavonoide, XXXII. Oxidative Umwandlungen schwefelhaltiger Flavonoide

Justus Liebigs Annalen der Chemie, 1977
AbstractDurch Oxidation des Flaventhions (2a) und des 1‐Thioflaventhions (2b) mit äquimolekularer Menge Monoperoxyphthalsäure werden die entsprechenden Flaventhionoxide 3a und 3b gewonnen. Aus diesen entstehen durch weitere Oxidation Flavon (1a) bzw. 1‐Thioflavon (1b). Die Verbindungen 1a und 1b erhält man auch durch Reaktion von 2a bzw.
János Bálint, Rezső Bognár, Miklos Rakosi   +2 more
openaire   +2 more sources

Properties and applications of flavonoid metal complexes

, 2015
Flavonoids are widely occurring polyphenol compounds of plant origin with multiple biological and chemical activities. Due to the presence of carbonyl and hydroxyl groups they can coordinate metal ions and form complexes.
Maria M Kasprzak, A. Erxleben, J. Ochocki   +2 more
semanticscholar   +1 more source

Antioxidative Properties of Flavonoids

Current Organic Chemistry, 2011
Evidence accumulates that a family of plant compounds, known as flavonoids, can prevent or slow down the progression of cardiovascular diseases, cancer, inflammatory and neurodegenerative diseases. Flavonoids are considered beneficial, this is often attributed to their powerful antioxidant properties.
Bowedes, T.C.F., Luttikhold, J., van Stijn, M.F.M., Visser, M., van Norren, K., Vermeulen, M.A.R., Leeuwen, P.A.M.   +6 more
openaire   +3 more sources

Flavonoids

1988
Publisher Summary Tissue cultures have become increasingly important as they provide information on flavonoid biosynthesis and regulation of the corresponding pathways. The chapter discusses these two aspects. The large number of flavonoids is conveniently divided into 12 classes.
W. Hinderer, H.U. Seitz
openaire   +2 more sources

Flavonoid antioxidants: chemistry, metabolism and structure-activity relationships.

Journal of Nutritional Biochemistry, 2002
Kelly E Heim, A. R. Tagliaferro, D. Bobilya   +2 more
semanticscholar   +1 more source