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stellera/ränidioksiid
Link salvestatakse lõikelauale
4 tulemused
Isolation and identification of 2-isopropyl-5-methylphenol from Stellera chamaejasme and its insecticidal activity against Aphis craccivora and Pieris rapae.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
In this study, the root powder of Stellera chamaejasme was extracted with chloroform. The crude extract thus obtained was chromatographed several times with silica gel columns and finally one pure natural product was obtained. This product was identified as 2-isopropyl-5-methylphenol (thymol), which
New biflavanones and bioactive compounds from Stellera chamaejasme L.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
OBJECTIVE
To study the chemical constituents of the root of Stellera chamaejasme L.
METHODS
Various column chromatographies on silica gel and RP-18 were employed for isolation and purification. Structures of compounds were elucidated by spectral analysis.
RESULTS
Eight lignans and three biflavonoids
Separation and identification of botanical insecticide 7-hydroxycoumarin and its biological activity against Aphis craccivora and Culex pipiens pallens.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The root powder of Stellera chamaejasme was extracted with chloroform. The crude extract obtained was chromatographed with silica gel columns many times. One pure natural product was obtained. It was identified as 7-hydroxycoumarin. Laboratory bioassay showed that it had a good insecticidal activity
Purification and identification of carvacrol from the root of Stellera chamaejasme and research on its insecticidal activity.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The root powder of Stellera chamaejasme was extracted with petroleum ether. The crude extract obtained was chromatographed repeatedly with silica gel columns. One pure natural product was obtained, which was identified as 5-isopropyl-2-methylphenol (carvacrol), separated for the first time from the
Kõige täiuslikum ravimtaimede andmebaas, mida toetab teadus
- Töötab 55 keeles
- Taimsed ravimid, mida toetab teadus
- Maitsetaimede äratundmine pildi järgi
- Interaktiivne GPS-kaart - märgistage ürdid asukohas (varsti)
- Lugege oma otsinguga seotud teaduspublikatsioone
- Otsige ravimtaimi nende mõju järgi
- Korraldage oma huvisid ja hoidke end kursis uudisteuuringute, kliiniliste uuringute ja patentidega
Sisestage sümptom või haigus ja lugege ravimtaimede kohta, mis võivad aidata, tippige ürdi ja vaadake haigusi ja sümptomeid, mille vastu seda kasutatakse.
* Kogu teave põhineb avaldatud teaduslikel uuringutel
