The phytochemical study of flowering shoots of Caragana bungei Ledeb., Fabaceae, collected in Tuva Republic (Russian Federation) resulted in the isolation of sixteen compounds identified as β-sitosterol, β-sitosterol-3-Oglucoside, umbelliferone, kaempferol, quercetin, isorhamnetin-3-O-glucoside, isoquercitrin, rutin, narcissin, nicotiflorin, caffeic acid, 3-O-caffeoylquinic acid, 5-O-caffeoylqu...

Density Functional Theory (DFT) calculations have been carried out using a Polarizable Continuum Model (PCM) in an attempt to investigate the electro-molecular properties of branched-chain glucoside (C14C10-D-glucoside) isomers. The results showed that αconfiguration of pyranoside form is thermodynamically the most stable, while the solution should contain much more β...

Pueraria lobata is a rich source of isoflavonoids. The detection and identification of isoflavonoid components from Pueraria radix (RP), callus and cell cultures, is very important for the safest and most effective use of kudzu as a medicinal plant, and for the studies on quantitative analysis and secondary metabolism of isoflavonoids in vitro cultures. Liquid chromatography is coupled with neg...

Nine varieties of pigmented rice (Oryza sativa L.) seeds that were black, red, or white were used to perform metabolite profiling by using ultra-performance liquid chromatography-quadrupole-time-of-flight mass spectrometry (UPLC-Q-TOF-MS) and gas chromatography (GC) TOF-MS, to measure antioxidant activities. Clear grouping patterns determined by the color of the rice seeds were identified in pr...

An unknown fluorescent metabolite has been isolated from heads of eye-color mutants of Drosophila melanogaster. Only a few mutations cause it to accumulate, uiz. cardinal (cd), dark red brown (drb), Henna-recessive (Hn’), purple (pr), Punch2 (Pu’), Punch-Grape (Puff’), and scarlet (st). After purification by ion-exchange chromatography, the spectroscopic, chemical, and enzymatic analyses reveal...

Ixeris dentata (Thunb. ex Thunb.) Nakai (family Asteraceae) a plant widely distributed in Viet Nam, is perennial herb that grows to height of 0.5 m. It has been used as medicinal medicine since ancient times for the treatment calculi, dyspepsia, indigestion, pneumonia, hepatitis, contusion, and tumors Northeast Asia. The biological activities this have shown be neuroprotective, anti-mutagenic, ...

The detailed investigation of a methanolic extract of aerial parts of Achillea nobilis resulted in the isolation of 10 flavonoids. A new C-glycosylflavone, luteolin-6-C-apiofuranosyl-(1'''-->2'')-glucoside, was isolated besides orientin, isoorientin, vitexin, isoschaftoside, luteolin-7-O-beta-glucuronide, luteolin-4'-O-beta-glucoside and quercetin-3-O-methyl ether and two rare flavonolglycoside...

Gy. Gyürky,1 F. Confortola,2 H. Costantini,2 A. Formicola,3 D. Bemmerer,4,5 R. Bonetti,6 C. Broggini,4 P. Corvisiero,2 Z. Elekes,1 Zs. Fülöp,1 G. Gervino,7 A. Guglielmetti,6 C. Gustavino,3 G. Imbriani,8 M. Junker,3 M. Laubenstein,3 A. Lemut,2 B. Limata,8 V. Lozza,4 M. Marta,6 R. Menegazzo,4 P. Prati,2 V. Roca,8 C. Rolfs,9 C. Rossi Alvarez,4 E. Somorjai,1 O. Straniero,10 F. Strieder,9 F. Terrasi...

Since a few decades the dengue virus became a major public health concern and no treatment is available yet. In order to propose potential antidengue compounds for chemotherapy we focused on DENV RNA polymerase (DENV-NS5 RdRp) which is specific and essential for the virus replication. Carpolepis laurifolia belongs to the Myrtaceae and is used as febrifuge in traditional kanak medicine. Leaf ext...