Results 81 to 90 of about 4,321 (234)

Extraction of Anthraquinones from Japanese Knotweed Rhizomes and Their Analyses by High Performance Thin-Layer Chromatography and Mass Spectrometry

open access: yesPlants, 2020
Anthraquinones (yellow dyes) were extracted from Japanese knotweed rhizomes with twelve extraction solvents (water; ethanol(aq) (20%, 40%, 60%, 70% and 80%), ethanol, 70% methanol(aq), methanol, 70% acetone(aq), acetone and dichloromethane). The obtained
Vesna Glavnik, Irena Vovk
doaj   +1 more source

In Vitro and In Vivo Toxicity and Antiviral Activity of Rhein Derivatives Against Nervous Necrosis Virus

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 6, December 2025.
ABSTRACT Rhein has been demonstrated to exhibit antiviral activity against nervous necrosis virus (NNV). As rhein coexists in plants with various structurally analogous natural derivatives and may acquire improved biochemical properties through chemical modification, this study investigated the potential of several natural and synthetic derivatives for
Zhiqing Tian   +5 more
wiley   +1 more source

Analysis of Chemical Components and Blood‐Absorbed Components in Youjing Granules by UHPLC‐Q‐Orbitrap‐MS

open access: yesAnalytical Science Advances, Volume 6, Issue 2, December 2025.
ABSTRACT This study investigates the chemical components of Youjing Granules (YG) and identifies blood‐absorbed components in rat serum following YG administration via gavage. Chemical components and blood‐absorbed components of YG were analysed and identified using ultra‐high‐performance liquid chromatography coupled with hybrid quadrupole‐orbitrap ...
Mingxin Guo   +5 more
wiley   +1 more source

Preparative Isolation of Three Anthraquinones from Rumex japonicus by High-Speed Counter-Current Chromatography

open access: yesMolecules, 2011
Three anthraquinones—emodin, chrysophanol, and physcion—were successfully purified from the dichloromethane extract of the Chinese medicinal herb Rumex japonicus by high-speed counter-current chromatography (HSCCC).
Shuying Guo   +4 more
doaj   +1 more source

Marine anthraquinones: Pharmacological and toxicological issues [PDF]

open access: yes, 2021
The marine ecosystem, populated by a myriad of animals, plants, and microorganisms, is an inexhaustible reservoir of pharmacologically active molecules.
Catanzaro E.   +3 more
core   +1 more source

Combined phytochemistry and chemotaxis assays for identification and mechanistic analysis of anti-inflammatory phytochemicals in Fallopia japonica. [PDF]

open access: yesPLoS ONE, 2011
Plants provide a rich source of lead compounds for a variety of diseases. A novel approach combining phytochemistry and chemotaxis assays was developed and used to identify and study the mechanisms of action of the active compounds in F.
Ming-Yi Shen   +13 more
doaj   +1 more source

Simultaneous determination of eight major bioactive compounds in Dachengqi Tang (DT) by high-performance liquid chromatography [PDF]

open access: yes, 2008
Background Dachengqi Tang (DT) is a common traditional Chinese medicine formula for expelling neire ('internal heat') in the stomach and intestines. There was no reliable analytical method available for the quality control of DT.
Wenfu Tang   +4 more
core   +2 more sources

RETRACTED: Physcion induces apoptosis through triggering endoplasmic reticulum stress in hepatocellular carcinoma

open access: yesBiomedicine & Pharmacotherapy, 2018
Hepatocellular carcinoma (HCC) is one of the most common and aggressive malignancies. The current study aimed to investigate the effect of physcion, a major active ingredient in several traditional herbal medicinal plants, for the treatment of HCC. Our data showed that physcion markedly induced apoptosis in human HCC cell lines Huh7 and Bel7402.
Xiao-Ping, Pan   +3 more
openaire   +2 more sources

Chemical profiling and characterisation of anthraquinone‐based polyphenols as biocolourants from Cortinarius semisanguineus

open access: yesColoration Technology, Volume 141, Issue 6, Page 855-888, December 2025.
Abstract Anthraquinone dyes are known for their significant colour (brightness of shade in the red, blue and green areas) and light fastness properties compared with other synthetic dyes (such as azo‐based dyes). However, challenging multi‐step synthesis of anthraquinones and limited access to fewer substituents result in insufficient reactivity ...
Arvind Negi   +2 more
wiley   +1 more source

In-Silico UHPLC Method Optimization for Aglycones in the Herbal Laxatives Aloe barbadensis Mill., Cassia angustifolia Vahl Pods, Rhamnus frangula L. Bark, Rhamnus purshianus DC. Bark, and Rheum palmatum L. Roots

open access: yesMolecules, 2017
For the European Pharmacopoeia (Ph. Eur.) herbal monograph draft of Cassia angustifolia Vahl. and Cassia senna L. leaves and pods, a safety limitation of aloe-emodin and rhein was proposed, due to toxicological concerns. A quantitative, analytical method
Nadja Meier   +3 more
doaj   +1 more source

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