Results 131 to 140 of about 1,275 (196)

Distribution of phytoecdysteroids in the Caryophyllaceae

Phytochemistry, 2003
Certain genera within the Caryophyllaceae (especially Silene and Lychnis) have received a significant amount of attention with regard to the isolation and identification of ecdysteroids. However, the taxonomy of this family is difficult. Hence, the occurrence of phytoecdysteroids in members of the Caryophyllaceae is presented, and combined with new ...
Larisa, Zibareva, Vladimir, Volodin, Zyadilla, Saatov, Tamara, Savchenko, Pensri, Whiting, René, Lafont, Laurence, Dinan   +6 more
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On the distribution of phytoecdysteroids in plants

Cellular and Molecular Life Sciences, 2001
The occurrence and levels of phytoecdysteroids in the seeds and other parts of plants grown from the seeds of 180 randomly selected plant species were assessed and compared. Ecdysteroids are frequently detectable in leaves and flowers, but less so in stems, roots and seeds.
L, Dinan, T, Savchenko, P, Whiting
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Deep chemical identification of phytoecdysteroids in Achyranthes bidentata Blume by UHPLC coupled with linear ion trap-Orbitrap mass spectrometry and targeted isolation.

Chinese Journal of Natural Medicines, 2022
Achyranthes bidentata Blume is widely used as a traditional Chinese medicine with the effects of nourishing the liver and kidneys and strengthening muscles and bones.
Ying-ying Wang, Jia-yuan Li, Chang-liang Yao, Jian-qing Zhang, Yang Yu, S. Yao, Minxing Gao, Shifei Wu, Wen-long Wei, Qi-rui Bi, D. Guo   +10 more
semanticscholar   +1 more source

Phytoecdysteroids in the genus Asparagus (Asparagaceae)

Phytochemistry, 2001
Phytoecdysteroids, plant steroids which are analogues of invertebrate steroid hormones, probably contribute to the deterrence of phytophagous invertebrate predators. They also seem to possess antimicrobial activity and several pharmaceutical and medicinal benefits have been ascribed to them. Here. we present a survey of seeds of 16 species of the genus
L, Dinan, T, Savchenko, P, Whiting
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A new phytoecdysteroid

Russian Chemical Bulletin, 2000
A new phytoecdysteroid,viz, 2-deoxy-3-epi-4β, 20-dihydroxycedysone ((20R,22R)-3α,4β 14α,20,22,25-hexahydroxy-5β-cholest-7-en-6-one), named coronatasteronc, was isolated fromSerratula coronata and identified by NMR spectroscopy.
V. N. Odinokov, I. V. Galyautdinov, A. A. Fatykhov, L. M. Khalilov   +3 more
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Structure of a novel phytoecdysteroid, vitexirone, and efficient isolation of phytoecdysteroids fromVitex fisherii

Journal of Chemical Ecology, 1990
A novel phytoecdysteroid, vitexirone, has been isolated from a MeOH extract of the root bark of the East African medicinal plantVitex fisherii by recycling high-performance liquid chromatography on a semipreparative scale. In addition, three known phytoecdysteroids, 20-hydroxyecdysone, ajugasterone C, and turkesterone, also were isolated. The structure
I, Kubo, Y, Asaka, M J, Stout, T, Nakatsu   +3 more
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Chemical Transformations of Phytoecdysteroids

Phytoecdysteroids, 2021
Ugiloy Yusufovna Yusupova, Nurmurod Sheralievich Ramazonov, Vladimir Nikolaevich Syrov, Shomansur Shosaidovich Sagdullaev   +3 more
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Identification of oxidoreductase genes for phytoecdysteroids biosynthesis in spinach through comparative transcriptomics.

Plant physiology and biochemistry : PPB
Phytoecdysteroids (PE) are plant-derived ecdysteroids known as insect molting hormones. Among them, 20-hydroxyecdysone (20E) is the major PE that defends against herbivorous insects.
Jiwon Kim, Yang Xu, K. Riu, Jae-Hoon Kim, Chang-Gu Hyun, Kyung-Hwan Boo   +5 more
semanticscholar   +1 more source

Physiological and Biochemical Evaluation of the Effectiveness of a New Food Ingredient, a Source of Phytoecdysteroids and Flavonoids from Quinoa Grain

Biotekhnologiya, 2021
- One of the promising food sources of biologically active substances is quinoa grain, which is valued for its high content of protein, sulfur-containing amino acids, lysine, fiber, and minerals. In addition, quinoa grain can be a valuable food source of
N. Petrov, S. Zorin, N. Biryulina, V. Mazo   +3 more
semanticscholar   +2 more sources

Chromatographic procedures for phytoecdysteroids

Journal of Chromatography A, 1994
Abstract The complexity of the mixtures of ecdysteroids in plants and the close similarities in their chemical structures have challenged chemists to find suitable ways to separate and identify them. Great ingenuity has been applied to these problems and consequently a wide range of separation and methods are available today.
R. Lafont, E.D. Morgan, I.D. Wilson
openaire   +1 more source