Biochemical study on the meat and oil of Mongolian fishes

DOI: http://dx.doi.org/10.5564/mjc.v13i0.152 Mongolian Journal of Chemistry Vol.13 2012: 12-1

Phytochemical analysis of Cynara scolymus L. cultivated in Mongolia

Cynara scolymus L. (Artichoke) is a traditionally consumed vegetable in many countries. In Mongolia, this plant has been successfully cultivated during the last years. The present study is an attempt to investigate the phytochemical composition of C.scolymus L. The result reveals the presence of bioactive constituents comprising flavonoids, total phenolic compounds, saponins and total proteins, carbohydrates, lipids and vitamin C in plant parts. The presence of these phytochemicals can be correlated with the medicinal potential of this plant.DOI: http://doi.dx.org/10.5564/mjc.v15i0.320Mongolian Journal of Chemistry 15 (41), 2014, p40-4

Bioactive phenolic acids from Scorzonera radiata Fisch.

Chromatographic separation of the crude extract obtained from the aerial parts of the Mongolian medicinal plant Scorzonera radiata yielded five new dihydrostilbenes [4], two new flavonoids, one new quinic acid derivative, as well as twenty known compounds including eight quinic acid derivatives, four flavonoids, two coumarins, five simple benzoic acids, and one monoterpene glycoside. We present here results on isolation and structural identification some active phenolic compounds from the Scorzonera radiata - eight quinic acid derivatives (quinic acid, 4,5-dicaffeoylquinic acid, 4,5-dicaffeoyl-epi-quinic acid, 3,5-dicaffeoylquinic acid, 3,5-dicaffeoyl-epi-quinic acid, chlorogenic acid, 5-p-coumaroylquinic acid (trans), 5-p-coumaroylquinic acid (cis)). Quinic acid derivatives exhibited antioxidative activity.DOI: http://dx.doi.org/10.5564/mjc.v12i0.177 Mongolian Journal of Chemistry Vol.12 2011: 78-8

Dihydrostilbene derivatives from the Mongolian medicinal plant Scorzonera radiata

Chromatographic separation of a crude extract obtained from aerial parts of the Mongolian medicinal plant Scorzonera radiata yielded five new dihydrostilbenes, scorzodihydrostilbenes A−E (1−5). The structures were unambiguously elucidated on the basis of one- and two-dimensional NMR (1H, 13C, COSY, HMBC, HMQC, and ROESY) and mass spectrometric data. Compounds 1−5 exhibited antioxidative activity when analyzed in the DPPH (2,2-diphenyl-1-picrylhydrazyl) assay. For 1 and 5 the antioxidant activities were stronger than that of the well-known naturally occurring stilbene antioxidant resveratrol