Sargasterol from Sargassum Ringgoldianum HARVEY
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چکیده
منابع مشابه
Hypoglycemic Effect of Sargassum ringgoldianum Extract in STZ-induced Diabetic Mice
This study was designed to investigate whether Sargassum ringgoldianum extract may inhibit α-glucosidase and α-amylase activities, and alleviate postprandial hyperglycemia in streptozotocin-induced diabetic mice. The IC50 values of Sargassum ringgoldianum extract against α-glucosidase and α-amylase were 0.12 mg/mL and 0.18 mg/mL, respectively, which evidenced higher activities than those of aca...
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Phlorotannins are a group of complex polymers of phloroglucinol (1,3,5-trihydroxybenzene), which are unique compounds from marine brown algae. In our present study, a procedure for extraction and enrichment of phlorotannins from S. fusiforme with highly antioxidant potentials was established. After comparison of different extraction methods, the optimal extraction conditions were established as...
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Five glycerol derivatives (1-5) and three sterols (6-8) were isolated from the EtOH extraction of the brown alga of Sargassum parvivesiculosum. On the basis of spectroscopic methods, their structures were elucidated as 1,3-di-O-[2',2'-di-(p-phenylene) isopropylidene] glycerol (1), (2S)-1-O-heptatriacontanoyl glycerol (2), (2S)-1,2-di-O-palmitoyl-3-O-(6-sulpho-alpha-D-quinovopyranosyl) glycerol ...
متن کاملDefinitions from Harvey Reall’s General Relativity Course
Definition 1.1. A differentiable manifold is a set M together with a collection of subsets Oα such that 1. ∪αOα = M , i.e., the subsets Oα cover M . 2. For each α there is a one-to-one and onto map φα : Oα → Uα where Uα is an open subset of R. φα are called charts and the set {φα} is called an atlas. 3. If Oα and Oβ overlap, i.e., Oα ∩ Oβ 6= ∅, then φβ ◦ φ−1 α : φα(Oα ∩ Oβ) ⊂ Uα ⊂ R → φβ(Oα ∩ O...
متن کاملWilliam Harvey
Ttiic greater the man the greater are his potentialities for good or for evil, and in many instances for both good and evil. The influence of many great men lias been during their lifttime almost entirely good, yet much harm has been done in their names through the unreasoning hero-worship of posterity. For fifteen hundred years, commencing from the second century of the Christian era, the teac...
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ژورنال
عنوان ژورنال: Pharmaceutical Bulletin
سال: 1957
ISSN: 0369-9471,1881-1345
DOI: 10.1248/cpb1953.5.85