Abstract
Abstract In addition to the plant sterols β-sitosterol and daucosterol, a new bisabolane-typed sesquiterpene glycoside and three bioactive compounds (artemetin, geniposide and 6β-hydroxygeniposide) were characterized from the whole plant of Biebersteinia heterostemon endemic to the Tibetan area. The structure determination of the novel glycoside and identification of the known phytochemicals were accomplished by a combination of modern spectroscopic methods. Tests of all isolates for the antimicrobial activity indicated that the new sesquiterpene glycoside exhibited pronounced antibacterial activities against Bacillus subtilis, Staphylococcus aureus and Pseudomonas sp. with MICs at 50, 50 and 70 μg/ml, respectively.
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Claims 2
Claim · model-written summary
A new bisabolane-typed sesquiterpene glycoside and three bioactive compounds were characterized from the whole plant of Biebersteinia heterostemon.
- Taxon
- Biebersteinia HeterostemonBiebersteinia heterostemont0
- Organ / stage
- whole plante1
- Outcome
- characterizede1
Verbatim
t0“Biebersteinia Heterostemon”
e1“a new bisabolane-typed sesquiterpene glycoside and three bioactive compounds (artemetin, geniposide and 6β-hydroxygeniposide) were characterized from the whole plant of Biebersteinia heterostemon”
Claim · model-written summary
The new sesquiterpene glycoside of Biebersteinia heterostemon showed pronounced antibacterial activity against Bacillus subtilis, Staphylococcus aureus and Pseudomonas sp., with MICs of 50, 50 and 70 μg/ml.
- Taxon
- Biebersteinia HeterostemonBiebersteinia heterostemont0
- Compound
- new sesquiterpene glycosidee2
- Outcome
- antibacterial activities against Bacillus subtilis, Staphylococcus aureus and Pseudomonas sp.e2
- Value
- 50, 50 and 70 μg/mle2
Verbatim
t0“Biebersteinia Heterostemon”
e2“the new sesquiterpene glycoside exhibited pronounced antibacterial activities against Bacillus subtilis, Staphylococcus aureus and Pseudomonas sp. with MICs at 50, 50 and 70 μg/ml”