Matches in SemOpenAlex for { <https://semopenalex.org/work/W2020693212> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2020693212 endingPage "134" @default.
- W2020693212 startingPage "125" @default.
- W2020693212 abstract "This study investigated and compared some techniques for the preparative isolation of terpene trilactones, including ginkgolides (GA and GB, etc.) and bilobalide (BB), from Ginkgo biloba leaves. The crude Ginkgo biloba L. extracts (GBE) were prepared using an extractor with solvent refluxing operated under an optimal extraction condition. The extraction yield was 20-23% and the purity of terpene trilactones was about 1.0-1.4 wt%. Before the isolation operations, the extracts were dissolved in de-ionized water. The isolation procedures included the method of liquid-liquid extraction and the method of column chromatography. For the method of liquid-liquid extraction using ethyl acetate as the organic solvent operated under the optimal extraction conditions, the purity, concentration ratio, and yield of terpene trilactones were 13.5-18.0%, 15-16, and >99%. For the method of column chromatography, XAD-7HP, XAD-4, and C-18 adsorbents with different polarities were used as the packing materials. Only for the XAD-7HP column, a part of more polar impurities was efficiently separated with the majority of terpene trilactones by a proper step-gradient elution, which resulted in an efficient isolation: the purity, concentration ratio, and yield of terpene trilactones were approximately 20, approximately 15, and approximately 80%. In comparison, the XAD-7HP column achieved the highest purity, but at the expense of the yield of terpene trilactones; on the contrary, the liquid-liquid extraction method, achieving the highest yield but with a slightly lower purity, was proved to be superior to the method of column chromatography in the current isolation stage." @default.
- W2020693212 created "2016-06-24" @default.
- W2020693212 creator A5016349493 @default.
- W2020693212 creator A5019780127 @default.
- W2020693212 creator A5019830382 @default.
- W2020693212 date "2005-10-01" @default.
- W2020693212 modified "2023-10-16" @default.
- W2020693212 title "Preparative isolation of terpene trilactones from Ginkgo biloba leaves" @default.
- W2020693212 cites W1991524668 @default.
- W2020693212 cites W2005489546 @default.
- W2020693212 cites W2013575210 @default.
- W2020693212 cites W2026640201 @default.
- W2020693212 cites W2042482175 @default.
- W2020693212 cites W2047200301 @default.
- W2020693212 cites W2082951866 @default.
- W2020693212 cites W2098798720 @default.
- W2020693212 doi "https://doi.org/10.1016/j.chroma.2005.01.028" @default.
- W2020693212 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/16188567" @default.
- W2020693212 hasPublicationYear "2005" @default.
- W2020693212 type Work @default.
- W2020693212 sameAs 2020693212 @default.
- W2020693212 citedByCount "13" @default.
- W2020693212 countsByYear W20206932122012 @default.
- W2020693212 countsByYear W20206932122014 @default.
- W2020693212 countsByYear W20206932122015 @default.
- W2020693212 countsByYear W20206932122017 @default.
- W2020693212 countsByYear W20206932122018 @default.
- W2020693212 countsByYear W20206932122022 @default.
- W2020693212 crossrefType "journal-article" @default.
- W2020693212 hasAuthorship W2020693212A5016349493 @default.
- W2020693212 hasAuthorship W2020693212A5019780127 @default.
- W2020693212 hasAuthorship W2020693212A5019830382 @default.
- W2020693212 hasConcept C134121241 @default.
- W2020693212 hasConcept C178790620 @default.
- W2020693212 hasConcept C179998833 @default.
- W2020693212 hasConcept C185592680 @default.
- W2020693212 hasConcept C191897082 @default.
- W2020693212 hasConcept C192562407 @default.
- W2020693212 hasConcept C2778998842 @default.
- W2020693212 hasConcept C2779706397 @default.
- W2020693212 hasConcept C2779858419 @default.
- W2020693212 hasConcept C2780471494 @default.
- W2020693212 hasConcept C2780847017 @default.
- W2020693212 hasConcept C2910863697 @default.
- W2020693212 hasConcept C43617362 @default.
- W2020693212 hasConcept C44937612 @default.
- W2020693212 hasConcept C4725764 @default.
- W2020693212 hasConcept C51724486 @default.
- W2020693212 hasConcept C59822182 @default.
- W2020693212 hasConcept C73826308 @default.
- W2020693212 hasConcept C86803240 @default.
- W2020693212 hasConceptScore W2020693212C134121241 @default.
- W2020693212 hasConceptScore W2020693212C178790620 @default.
- W2020693212 hasConceptScore W2020693212C179998833 @default.
- W2020693212 hasConceptScore W2020693212C185592680 @default.
- W2020693212 hasConceptScore W2020693212C191897082 @default.
- W2020693212 hasConceptScore W2020693212C192562407 @default.
- W2020693212 hasConceptScore W2020693212C2778998842 @default.
- W2020693212 hasConceptScore W2020693212C2779706397 @default.
- W2020693212 hasConceptScore W2020693212C2779858419 @default.
- W2020693212 hasConceptScore W2020693212C2780471494 @default.
- W2020693212 hasConceptScore W2020693212C2780847017 @default.
- W2020693212 hasConceptScore W2020693212C2910863697 @default.
- W2020693212 hasConceptScore W2020693212C43617362 @default.
- W2020693212 hasConceptScore W2020693212C44937612 @default.
- W2020693212 hasConceptScore W2020693212C4725764 @default.
- W2020693212 hasConceptScore W2020693212C51724486 @default.
- W2020693212 hasConceptScore W2020693212C59822182 @default.
- W2020693212 hasConceptScore W2020693212C73826308 @default.
- W2020693212 hasConceptScore W2020693212C86803240 @default.
- W2020693212 hasIssue "1" @default.
- W2020693212 hasLocation W20206932121 @default.
- W2020693212 hasLocation W20206932122 @default.
- W2020693212 hasOpenAccess W2020693212 @default.
- W2020693212 hasPrimaryLocation W20206932121 @default.
- W2020693212 hasRelatedWork W171648042 @default.
- W2020693212 hasRelatedWork W2019673870 @default.
- W2020693212 hasRelatedWork W204172779 @default.
- W2020693212 hasRelatedWork W2184910911 @default.
- W2020693212 hasRelatedWork W2348719756 @default.
- W2020693212 hasRelatedWork W2768041660 @default.
- W2020693212 hasRelatedWork W3129892772 @default.
- W2020693212 hasRelatedWork W3154124708 @default.
- W2020693212 hasRelatedWork W35123597 @default.
- W2020693212 hasRelatedWork W5384347 @default.
- W2020693212 hasVolume "1092" @default.
- W2020693212 isParatext "false" @default.
- W2020693212 isRetracted "false" @default.
- W2020693212 magId "2020693212" @default.
- W2020693212 workType "article" @default.