Related Experiment Video
Updated: Jan 11, 2026
Quantification of Violacein in Chromobacterium violaceum and Its Inhibition by Bioactive Compounds
Published on: August 8, 2025
Seven new vernocuminosides from the stem bark of Vernonia cumingiana Benth
Jing Liu1, Shuanggang Ma, Shishan Yu
1Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education & Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, People's Republic of China.
Abstract:
Seven new stigmastane-type steroidal glycosides, vernocuminosides H-N, have been isolated from the stem bark of Vernonia cumingiana Benth. The structures of these compounds were determined by NMR spectrometric methods including HSQC, HMBC, (1)H-(1)H COSY, and NOE, as well as circular dichroism experiments. Anti-inflammatory activities of vernocuminosides I and K-N were determined.
More Related Videos
09:31Author Spotlight: High-Throughput In Vivo Leaf Inoculation for Accelerating Disease Resistance Screening in Poplar Hybrid Breeding
Published on: September 20, 2024
08:36Author Spotlight: Evaluating the Adjuvant Efficacy and Safety of Angong Niuhuang Pill in Viral Encephalitis Treatment
Published on: April 19, 2024