Results 21 to 30 of about 111,518 (250)
Ginsenoside Rg12, a new dammarane-type triterpene saponin from Panax ginseng root
Journal of Ginseng Research, 2017 Background: Panax ginseng has been used as Korean medicine for various diseases. It has antioxidant, hypotensive, sedative, analgesic, and endocrine activities. Dammarane-type triterpenes from the plant have various beneficial effects.
Dong Gu Lee +7 more
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Two New Meroterpenoid Derivatives From With Their Anti-Oxidant Activities
Natural Product Communications, 2023 Objective: The purpose of this study was to search for novel secondary metabolites present in the marine brown alga, Sargassum macrocarpum C. Agardh. Methods: The methanolic extract of S.
Ji-Yul Kim +12 more
doaj +1 more source
HIRTINOL A: A NEW LIMONOID FROM THE SEEDS OF Trichilia hirta Linneaus (Meliaceae) [PDF]
Química NovaSpecies of the genus Trichilia (Meliaceae) produce a significant variety of secondary metabolites. Limonoids, the largest part of these compounds, have attracted considerable attention from the scientific community, due to their structural diversity and ...
Renata Rodrigues da Silva Robaina +4 more
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Journal of Lipid Research, 1988 5 alpha-Cholest-8(14)-en-3 beta-ol-15-one is a potent inhibitor of cholesterol biosynthesis which has significant hypocholesterolemic activity upon oral administration to animals. Described herein are the results of experiments that indicate the presence
G T Emmons +5 more
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Efficient Production of Antioxidants from Rape Pollen via a Chromatographic Strategy
Separations, 2022 Rape pollen has always been considered as a research hotspot in health foods and pharmaceuticals due to its abundance of natural active ingredients. In this work, a compound with antioxidant activity was directly isolated from the methanol extract of ...
Liugen Jin +5 more
doaj +1 more source
Journal of Ginseng Research, 2016 Background: Ginsenosides are the major effective ingredients responsible for the pharmacological effects of ginseng. Malonyl ginsenosides are natural ginsenosides that contain a malonyl group attached to a glucose unit of the corresponding neutral ...
Yu-Shuai Wang +9 more
doaj +1 more source
The Antiprotozoal Activity of Papua New Guinea Propolis and Its Triterpenes
Molecules, 2022 Profiling a propolis sample from Papua New Guinea (PNG) using high-resolution mass spectrometry indicated that it contained several triterpenoids. Further fractionation by column chromatography and medium-pressure liquid chromatography (MPLC) followed by
Samya S. Alenezi +10 more
doaj +1 more source
Biological activity of flavonoids from Sonchus brachyotus
Fisheries and Aquatic Sciences, 2021 The aim of this study was to isolate and identify secondary metabolites from Sonchus brachyotus and evaluate their antioxidant and anti-inflammatory activities.
Jeong Min Lee +6 more
doaj +1 more source
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source
Journal of Liquid Chromatography & Related Technologies, 2014 The root of Ligusticum chuanxiong Hort. is a well-known traditional Chinese medicine for treating headaches, ischemic stroke, anemia, and cerebral vascular disease. High-performance counter-current chromatography was applied to the isolation and purification of four lactones: 75.8 mg senkyunolide A, 3.5 mg levistolide A, 76.3 mg Z-ligustilide, and 0.8 ...
Hu, Yang +5 more
openaire +1 more source