scholarly journals Preparative separation of mangiferin glycosides by high speed counter current chromatography and comparison of their antioxidant and antitumor activities

RSC Advances ◽  
2020 ◽  
Vol 10 (43) ◽  
pp. 25780-25785
Author(s):  
Tingting Xu ◽  
Xueming Wu
Keyword(s):  
Efficient Method ◽  
High Speed ◽  
Preparative Separation ◽  
Antitumor Activities ◽  
Counter Current ◽  
Enzymatic Glycosylation

High-speed counter-current chromatography is an efficient method for separation of mangiferin glycosides from enzymatic glycosylation.

HSCCC Separation of Three Main Compounds from the Crude Extract of Dracocephalum Tanguticum by Using Dimethyl Sulfoxide as Cosolvent

2020 ◽  
Author(s):  
Xue Yang ◽  
Yongling Liu ◽  
Tao Chen ◽  
Nana Wang ◽  
Hongmei Li ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Ethyl Acetate ◽  
Dimethyl Sulfoxide ◽  
Efficient Method ◽  
Crude Extract ◽  
High Speed ◽  
Glacial Acetic Acid ◽  
Butyl Alcohol ◽  
Preparative Hplc ◽  
Counter Current

Abstract Separation of natural compounds directly from the crude extract is a challenging work for traditional column chromatography. In the present study, an efficient method for separation of three main compounds from the crude extract of Dracocephalum tanguticum has been successfully established by high-speed counter-current chromatography (HSCCC). The crude extract was directly introduced into HSCCC by using dimethyl sulfoxide as cosolvent. Ethyl acetate/n-butyl alcohol/0.3% glacial acetic acid (4: 1: 5, v/v) system was used and three target compounds with purity higher than 80% were obtained. Preparative HPLC was used for further purification and three target compounds with purity higher than 98% were obtained. The compounds were identified as chlorogenic acid, pedaliin and pedaliin-6″-acetate.

scholarly journals Preparative separation of two subsidiary colors of FD&C Yellow No. 5 (Tartrazine) using spiral high-speed counter-current chromatography

2014 ◽  
Vol 1343 ◽  
pp. 91-100 ◽  
Author(s):  
Adrian Weisz ◽  
Clark D. Ridge ◽  
Jose A. Roque ◽  
Eugene P. Mazzola ◽  
Yoichiro Ito
Keyword(s):  
High Speed ◽  
Preparative Separation ◽  
Counter Current

Preparative separation of polyphenols from the flowers of Paeonia lactiflora Pall. by high-speed counter-current chromatography

2014 ◽  
Vol 947-948 ◽  
pp. 62-67 ◽  
Author(s):  
Xikai Shu ◽  
Wenjuan Duan ◽  
Feng Liu ◽  
Xingang Shi ◽  
Yanling Geng ◽  
...  
Keyword(s):  
High Speed ◽  
Preparative Separation ◽  
Paeonia Lactiflora ◽  
Counter Current

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

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 620 ◽  
Author(s):  
Xiaowei Sun ◽  
Huijiao Yan ◽  
Yujie Zhang ◽  
Xiao Wang ◽  
Dawei Qin ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Petroleum Ether ◽  
High Speed ◽  
Spectroscopic Methods ◽  
Two Dimensional ◽  
Preparative Separation ◽  
Counter Current ◽  
First Time

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 three flavones, andrographidine C (7), andrographidine A (8), 5-hydroxy-7,8-dimethoxyflavanone (9) have been successfully and efficiently isolated from A. paniculata using an off-line two dimensional (2D) high-speed counter-current chromatography (HSCCC) method for the first time. For the first dimension HSCCC separation, petroleum ether-ethyl acetate-methanol-water 3:7:5:5 (v/v) was employed to isolate 14.4 mg of compound 1, 3.1 mg of compound 2, 7.8 mg of compound 3, and 18.0 mg of compound 4 from 200 mg of the A. paniculata extract. For the second dimension HSCCC separation, petroleum ether-ethyl acetate-methanol-water 2:8:1:9 (v/v) and 5:5:6:4 (v/v) were employed to isolate the collected fractions ranged from 55 to 79 min and the flow out fraction, respectively, which led to 5.1 mg of compound 5, 4.4 mg of compound 6, 2.4 mg of compound 7, 3.3 mg of compound 8, 4.0 mg of compound 9, 7.0 mg of compound 10. The structures of these diterpene lactones and flavones were elucidated by extensive spectroscopic methods.

scholarly journals Development of online-storage inner-recycling counter-current chromatography for the preparative separation of complex components of alkylphenols from sarcotesta of Ginkgo biloba L.

RSC Advances ◽  
2018 ◽  
Vol 8 (60) ◽  
pp. 34321-34330 ◽  
Author(s):  
Daijie Wang ◽  
Xiangyun Song ◽  
Huijiao Yan ◽  
Mengmeng Guo ◽  
Ruiming Fu ◽  
...  
Keyword(s):  
Natural Products ◽  
Ginkgo Biloba ◽  
High Speed ◽  
Separation Method ◽  
Preparative Separation ◽  
Online Storage ◽  
Counter Current ◽  
Complex Components

High-speed counter-current chromatography (HSCCC) is becoming an effective and non-absorptive separation method from natural products.

scholarly journals Quick Preparative Separation of Natural Naphthopyranones with Antioxidant Activity by High-Speed Counter-Current Chromatography

2002 ◽  
Vol 57 (11-12) ◽  
pp. 1051-1055 ◽  
Author(s):  
Gilda G. Leitão ◽  
Suzana G. Leitão ◽  
Wagner Vilegas
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
High Speed ◽  
Ethanolic Extract ◽  
Solvent System ◽  
Spectrophotometric Assay ◽  
Preparative Separation ◽  
Dpph Radical ◽  
Preparative Scale ◽  
Counter Current

The natural naphthopyranones paepalantine (1), paepalantine-9O-β-ᴅ-glucopyranoside (2) and paepalantine-9-O-β-ᴅ-allopyranosyl-(1→6)-O-β-ᴅ-glucopyranoside (3) were separated in a preparative scale from the ethanolic extract of the capitula of Paepalanthus bromelioides by high-speed counter-current chromatography (HSCCC). The solvent system used was composed of water-ethanol-ethyl acetate-hexane (10:4 : 10:4, v/v/v/v). This technique led to the separation of the three different naphthopyranone glycosides in pure form in approximately 7 hours. Paepalantine showed a good antioxidant activity when assayed by the DPPH radical spectrophotometric assay.

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