نتایج جستجو برای: esims
تعداد نتایج: 139 فیلتر نتایج به سال:
Siderophores are thought to play an important role in iron cycling in the ocean, but relatively few marine siderophores have been identified. Sensitive, high throughput methods hold promise for expediting the discovery and characterization of new siderophores produced by marine microbes. We developed a methodology for siderophore characterization that combines liquid chromatography (LC) inducti...
Four new khayanolide-type limonoids with a 2-carbonyl group, named krishnolides A-D (1-4), were isolated from the seeds of an Indian mangrove, Xylocarpus moluccensis, collected in the mangrove swamp of Krishna estuary, Andhra Pradesh. The relative and absolute configurations of these compounds were established by HR-ESIMS, extensive NMR investigations, single-crystal X-ray diffraction analysis ...
A new γ-lactone named maroccanin (1) together with 5 known compounds : scopoletin (2); 8α-[2’hydroxymethyl-2’-butenoyloxy]-dehydromelitensin (3); 11,13-dehydromelitensin (4); 8α-[2’-hydroxymethyl-2’butenoyloxy]-sonchucarpolide (5) and 5Hα,6Hβ,7Hα,-15-hydroxy-8α-(1’,2’-dihydroxyethyl-acryloxy)-elema1(2),3(4),11(13)-trien-6,12-olide (6), were isolated from the chloroform soluble part of the aqueo...
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