Results 101 to 110 of about 1,244 (197)

Isolation and purification of macrocyclic components from Penicillium fermentation broth by high-speed counter-current chromatography [PDF]

, 2009
In this paper, high-speed counter-current chromatography (HSCCC), assisted with ESI-MS, was first successfully applied to the preparative separation of three macrolide antibiotics, brefeldin A (12.6 mg, 99.0%), 7'-O-formylbrefeldin A (6.5 mg, 95.0%) and ...
Liu, Yan, Fang, Meijuan, Zhuang, Rongqiang, Zhao, Yufen, Gao, Xiang, Guo, Jiannan, Bao, Jian, Xu, Pengxiang, 赵玉芬   +8 more
core   +1 more source

Preparative Separation of Diterpene Lactones and Flavones from Andrographis paniculate Using Off-Line Two-Dimensional High-Speed Counter-Current Chromatography

Molecules, 2019
Seven diterpene lactones, andrographolide (1), isoandrographolide (2), neo-andrographolide (3), 14-deoxy-11,12-didehydroandrographolide (4), 14-deoxyandrographiside (5), 14-deoxy-11,12-didehydroandrographiside (6), 3,14-dideoxyandrographolide (10), and ...
Xiaowei Sun, Huijiao Yan, Yujie Zhang, Xiao Wang, Dawei Qin, Jinqian Yu   +5 more
doaj   +1 more source

Aspects of natural product chemistry: Biosynthesis, structure elucidation and HSCCC/MBI/FABMS [PDF]

, 1996
The structure and biosynthesis of cremeomycin, a novel cytotoxic antibiotic from Streptomyces cremeus NRRL 3241, were established. Cremeomycin was found to be 3-diazo-4-methoxycyclohexa-4,6-dien-2-one carboxylic acid by X-ray crystallography. Through the
McGuire, James Norton
core  

The kidney antifibrotic effects of 5,7,3',4',5'-pentamethoxyflavone from Bauhinia championii in streptozotocin-induced diabetic rats: in vivo and in vitro experiments. [PDF]

Pharm Biol, 2023
Li J, Huang X, He K, Wu S.
europepmc   +1 more source

Separation of Flavonoids and Purification of Chlorogenic Acid from Bamboo Leaves Extraction Residues by Combination of Macroporous Resin and High-Speed Counter-Current Chromatography. [PDF]

Molecules, 2023
Zhou Y, Chen M, Huo X, Xu Q, Wu L, Wang L.   +5 more
europepmc   +1 more source

Isolation of Two New Phenolic Glycosides from Castanopsis chinensis Hance by Combined Multistep CC and HSCCC Separation and Evaluation of Their Antioxidant Activity. [PDF]

Molecules, 2023
Wang YF, Lin P, Huang YL, He RJ, Yang BY, Liu ZB.   +5 more
europepmc   +1 more source

高速逆流色谱法分离纯化丹参并尝试制订中药指纹图谱 [PDF]

, 2003
用国产高速逆流色谱 (HSCCC)分离纯化中草药———丹参 ,选用正己烷 乙醇 水体系 ,固定相保留率达到78 8%。采用分步洗脱 ,3个产地丹参各分离得到 12个洗脱组分 ,经高效液相色谱仪和紫外光谱仪检测证明 3张HSCCC洗脱图谱中对应洗脱峰为同一组分。HSCCC洗脱图谱不包含非共有峰 ,并且对应洗脱峰保留时间的相对标准偏差RSD <3% ,符合国家标准关于制订指纹图谱方法学考察资料的技术参数。因此 ...
苏志国, 欧阳藩, 顾铭
core  

An efficient method for the preparative isolation and purification of alkaloids from Gelsemium by using high speed counter-current chromatography and preparative HPLC [PDF]

We established an efficient method using high-speed countercurrent chromatography (HSCCC) combined with preparative high-performance liquid chromatography (prep-HPLC) for isolating and purifying Gelsemium elegans (G. elegans) alkaloids.
Shi-Hao Zhu (18333778), Meng-Ting Zuo (18333781), Xue-Jiao Zhao (18333775), Zhao-Ying Liu (4279798), Ling-Ling Liang (18333772), Ying Lu (66401), Qi Tang (351973)   +6 more
core   +1 more source

Capparis cartilaginea decne (capparaceae): isolation of flavonoids by high-speed countercurrent chromatography and their anti-inflammatory evaluation. [PDF]

Front Pharmacol, 2023
Alsharif B, Hante N, Govoni B, Verli H, Kukula-Koch W, Jose Santos-Martinez M, Boylan F.   +6 more
europepmc   +1 more source

An effective universal protocol for the extraction of fructooligosaccharide from the different agricultural byproducts. [PDF]

MethodsX, 2023
Chelliah R, Park SJ, Oh S, Lee E, Daliri EB, Elahi F, Park CR, Sultan G, Madar IH, Oh DH.   +9 more
europepmc   +1 more source