A phytochemical investigation on the 80% ethanol extract of the roots of Pojark. resulted in the isolation of 20 compounds, including two new ones, named kompasinol P () and 3,5,7,2',3'-pentahydroxy-4'-methoxyisoflavanone (). Among them, a pair of enantiomers, (7, 8 , 7', 8')kompasinol A ( and (7 , 8, 7', 8')-kompasinol A (), were successfully separated by the chiral-phase HPLC resolution for the first time. The absolute configurations of and were determined by the experimental and calculated electronic circular dichroism (ECD) data. 15 isolates were evaluated for their anti-inflammatory activity inhibiting the production of nitric oxide (NO) in lipopolysaccharide (LPS)-stimulated murine macrophage RAW 264.7 cells. Compounds , , , , , , , and - showed moderate inhibition with IC values ranging from 11.45 to 68.54 μM.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/10286020.2021.1918119 | DOI Listing |
J Asian Nat Prod Res
July 2021
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
Antonie Van Leeuwenhoek
November 2012
State Key Laboratory for Agrobiotechnology, Department of Microbiology and Immunology, College of Biological Sciences, China Agricultural University, Beijing, 100193, People's Republic of China.
A nitrogen-fixing bacterium, designated strain gs65(T), was isolated from a rhizosphere soil sample of Caragana kansuensis Pojark. Phylogenetic analysis based on a fragment of the nifH gene and the full-length 16S rRNA gene sequence revealed that strain gs65(T) is a member of the genus Paenibacillus. High levels of 16S rRNA gene similarity were found between strain gs65(T) and Paenibacillus borealis DSM 13188(T) (97.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!