Results 91 to 100 of about 1,078 (179)

Methods for Squalene Concentration from Palm Fatty Acid Distillate [PDF]

open access: yes, 2007
Two methods for separating and concentrating of squalene from palm fatty acid distillate (PFAD) by optimizing the enzymatic hydrolysis of PFAD which has been neutralized-hydrolyzed-neutralized before being run onto adsorption column chromatography and by
Chua, Camilla Soo Leng
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Preparative Isolation of Two Prenylated Biflavonoids from the Roots and Rhizomes of Sinopodophyllum emodi by Sephadex LH-20 Column and High-Speed Counter-Current Chromatography

open access: yesMolecules, 2015
Two prenylated biflavonoids, podoverines B–C, were isolated from the dried roots and rhizomes of Sinopodophyllum emodi using a Sephadex LH-20 column (SLHC) and high-speed counter-current chromatography (HSCCC).
Yan-Jun Sun   +7 more
doaj   +1 more source

A Strategy for Preparative Separation of 10 Lignans from Justicia procumbens L. by High-Speed Counter-Current Chromatography

open access: yesMolecules, 2017
Ten compounds, including three lignan glycosides and seven lignans, were purified from Justicia procumbens L. in 8 h using an efficient strategy based on high-speed counter-current chromatography (HSCCC).
Jiaojiao Jiang   +7 more
doaj   +1 more source

Preparative Separation of Phenolic Compounds from Chimonanthus praecox Flowers by High-Speed Counter-Current Chromatography Using a Stepwise Elution Mode

open access: yesMolecules, 2016
High-speed counter-current chromatography (HSCCC) has been successfully used for the separation of eight compounds from Chimonanthus praecox flowers. Firstly, the crude extract of Chimonanthus praecox flowers was dissolved in a two-phase solvent system ...
Huaizhi Li   +6 more
doaj   +1 more source

플라티코딘 D와 효소에 의해 전환된 플라티코딘 D 강화분획물의 지방축척 억제효과 [PDF]

open access: yes, 2019
학위논문 (박사)-- 서울대학교 대학원 : 약학대학 약학과, 2019. 2. 김영식.길경 (Platycodon grandiflorum A. DC)의 유효성분이자 지표성분인 플라티코딘 D는 기존에 항암, 항산화, 항염증 등의 효능이 있는 것으로 보고가 되고 있다. 최근, 플라디코딘 D는 동물모델에서 지질대사 관련 개선능과 항비만 생리활성이 탁월한 것으로 많은 보고가 있었음에도 불구하고, 아직까지 세포수준에서 어떠한 기전으로 항비만 효과가 있는지 명확한 ...
이은정
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Screening and Isolating Acetylcholinesterase Inhibitors from Olea europaea L. Fruit Using Ultrafiltration–Liquid Chromatography Coupled with High-Speed Counter-Current Chromatography

open access: yesSeparations
Alzheimer’s disease (AD) is a progressive neurodegenerative condition and one of the most prevalent types of dementia in older adults. Currently, the primary drugs used to treat AD are acetylcholinesterase (AChE) inhibitors.
Xingcui Wang   +5 more
doaj   +1 more source

Cromatografia contracorrente : evolução e aplicações [PDF]

open access: yes, 2016
Esta revisão aborda a Cromatografia Contracorrente (CCC), uma técnica de separação que utiliza duas fases líquidas imiscíveis em uma tubulação submetida a movimento giratório em torno de seu próprio eixo e em torno do eixo central do equipamento.
Büttenbender, Sabrina Laíz
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Separation and Purification of Lycium barbarum Polysaccharides in Neuroinflammation by High-speed Countercurrent Chromatography [PDF]

open access: yes
Objective: This study constructed a novel method for the separation and purification of polysaccharides from Lycium barbarum polysaccharide (LBPs) by high-speed countercurrent chromatography with aqueoust two-phase system, and investigated its effect on ...
Duolong DI   +4 more
core   +1 more source

Preparative Separation of Salvianolic Acid B from Salvia miltiorrhiza by High Speed Counter-Current Chromatorgraphy [PDF]

open access: yes, 2006
采用高速逆流色谱法分离纯化丹参水溶性成分丹酚酸类物质,制备丹酚酸B化学对照品。分离采用的溶剂系统为正己烷-乙酸乙酯-水-甲醇(1.5:5:5:1.5),上相做固定相,下相做流动相,流速为1.7 mL/min,仪器转速850 rpm,进样量80 mg,纯度用HPLC方法测定。结果表明:一次分离可制备63.4 mg丹酚酸B,其纯度为98.6%。该方法操作简单,可作为高纯度丹酚酸B化学对照品的制备分离方法。Salvianolic acid B,a major bioactive component in ...
李磊   +4 more
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