Results 161 to 170 of about 4,257 (227)

Determination of phototoxic furanocoumarins in natural cosmetics using SPE with LC-MS

Analytica Chimica Acta, 2020
Furanocoumarins are a class of naturally occurring phototoxic substances widely spread throughout the Umbelliferae and Rutacea families of plants. Plant extract of these families (e.g.
Marco Kreidl, Matthias Rainer, GÜNTHER K Bonn   +2 more
exaly   +2 more sources

Linear Furanocoumarins

Handbook of Plant and Fungal Toxicants, 2020
M. Diawara, J. Trumble
semanticscholar   +2 more sources

Comparative studies of immobilized polysaccharide derivatives chiral stationary phases for enantioseparation of furanocoumarins and dihydroflavones and discussion on chiral recognition mechanism.

Journal of Separation Science, 2023
Enantiomeric separation of furanocoumarins and dihydroflavones compounds were systematically studied in the normal-phase mode using four different polysaccharide-type chiral stationary phases, namely, Chiralpak IA, Chiralpak IC, Chiralpak IG, and ...
Lu Tang, Yanyan Chen, Mengru Wu, Ting Tang, Yaqi Yao   +4 more
semanticscholar   +1 more source

Furanocoumarins from Dorstenia gigas

Phytochemistry, 2001
A series of linear and angular prenylated furanocoumarins and a benzofuran derivative were isolated from leaves and twigs of Dorstenia gigas (Moraceae), a plant occurring endemically on Socotra Island (Yemen). The structures were elucidated by spectroscopic methods (NMR, MS, UV) and chemical derivatization.
Katrin Franke, Andrea Porzel, Jürgen Schmidt   +2 more
exaly   +3 more sources

Evaluation of photocytotoxicity liposomal form of furanocoumarins Sosnowsky's hogweed.

Chemico-Biological Interactions, 2022
Sosnovsky's hogweed, Heracleum sosnowskyi has a high photosensitizing ability. Although Sosnovsky's hogweed is known as a poisonous plant, its chemical composition and phototoxicity are poorly studied.
O. A. Kulikov, V. P. Ageev, E. P. Brodovskaya, V. Shlyapkina, P. Petrov, M. Zharkov, D. E. Yakobson, I. Maev, G. Sukhorukov, N. Pyataev   +9 more
semanticscholar   +1 more source

An accurate and reliable analytical strategy for simultaneous determination of target furanocoumarins and flavonoids in cosmetic and pharmaceutical samples by ultra-high performance supercritical fluid chromatography.

Journal of Pharmaceutical and Biomedical Analysis, 2022
Furanocoumarins and flavonoids have various important biological activities and wide application. In the present study, a rapid and reliable supercritical fluid chromatography method was proposed for the separation of 10 target components including 8 ...
Z. Li, Xin Kang Li, Zhuo Ling Yang, Dian Qiu, Na Feng, Xiang Zhang, B. Li   +6 more
semanticscholar   +1 more source

Furanocoumarins with affinity to brain benzodiazepine receptors in vitro

Phytochemistry, 1997
Eight furanocoumarins were isolated from a methanol extract of dried roots of Angelica dahurica. One of these, phellopterin, strongly (IC50 = 0.36 microM) inhibits the binding of [3H]diazepam to central nervous system benzodiazepine receptors in vitro ...
M Nielsen, R Shan, Jinglu Ai
exaly   +2 more sources

Preparative isolation of antioxidative furanocoumarins from Dracocephalum heterophyllum and their potential action target.

Journal of Separation Science, 2022
Traditional Tibetan medicine has extensively documented the health benefits of Dracocephalum heterophyllum. However, there are few reports on the chemical composition of furanocoumarins, probably because of their complicated isolation and purification ...
Yue Lv, Chengzhao Li, Ze Wang, Qilan Wang, Gang Li, J. Dang   +5 more
semanticscholar   +1 more source

Biosynthesis of linear furanocoumarins

Canadian Journal of Biochemistry, 1970
Labelling experiments with 14C and 3H have shown that linear furanocoumarins of Ammi majus, Angelica archangelica, Heracleum lanatum (Umbelliferae), and Ruta graveolens (Rutaceae) are formed from umbelliferone via the dihydrofuranocoumarin, marmesin.
Brown, Stewart A., El-Dakhakhny, M., Steck, Warren   +2 more
openaire   +3 more sources

Furanocoumarins from Dorstenia foetida

Phytochemistry, 2011
The linear furanocoumarins 5-(2,3-epoxy-3-methyl-butoxy)-chalepensin, 5-methoxy-3-(3-methyl-2,3-dihydroxybutyl)-psoralen-diacetate (7), 5-methoxy-3-[3-(β-D-glucopyranosyloxy)-2-acetyloxy-3-methyl-butyl]-psoralen and 5-(3-methyl-2,3-dihydroxybutyloxy)-3-[3-(β-D-glucopyranosyloxy)-2-hydroxy-3-methyl-butyl]-psoralen, and the coumarin derivative 7-hydroxy ...
Ramona Heinke, Katrin Franke, Andrea Porzel   +2 more
exaly   +3 more sources