Recovery and recycling of solvent of counter‐current chromatography: The sample of isolation of zeaxanthin in the <i>Lycium barbarum</i> L. fruits

Duan, Wen; Quan, Kaijun; Huang, Xin‐Yi; Gong, Yuan; Sun, Xiaofeng; Liu, Jianfei; Pei, Dong; Di, Duolong

doi:10.1002/jssc.202000750

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…Of all system combinations tested, system (−9,7) showed the best resolution during practical separation and was selected as the best solvent system for subsequent separations with a ratio of 19:1:1:5.67. However, due to low resolution (the resolution between hydroxy-ε-sanshool and HAS was 0.154, while that between HAS and HBS was 0.31), the elution mode was changed to recycling mode for improved separation [3,6,[23][24][25][26].…”

Section: Separation Of Three Kinds Of Sanshool By CCCmentioning

confidence: 99%

“…Additionally, the CCC principle provides different elution modes to improve separation resolution [2]. Numerous examples of CCC separation have demonstrated diverse practicability of these elution modes [3][4][5][6][7], however, choosing between them is obscure in practical separation for CCC users. Therefore, it is necessary to induct common separation strategies that include both solvent system selection and elution mode choice.…”

Section: Introductionmentioning

confidence: 99%

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Development of a general separation strategy by countercurrent chromatography using sanshools from Zanthoxylum bungeanum oleoresin as a case study

Han

Tong

et al. 2023

J of Separation Science

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Three kinds of sanshools were separated from Zanthoxylum bungeanum oleoresin by high‐speed countercurrent chromatography. Sanshools are a series of amide compounds extracted from the Zanthoxylum bungeanum. Due to similar structures, polarities, and dissociation constants, it was challenging to select an appropriate solvent system for their complete separation by countercurrent chromatography. To address this challenge, a solvent‐system‐selection strategy was proposed to identify a relatively suitable solvent system. Additionally, a separation procedure incorporating multi‐elution modes selection was established to separate similar compounds in a logical order. Ultimately, a solvent system comprising n‐hexane:ethyl acetate:methanol:water in a ratio of 19:1:1:5.67 was selected. Three amide compounds with high purity were obtained through the use of recycling elution mode to improve separation resolution: hydroxy‐ε‐sanshool (8.4 mg; purity: 90.64%), hydroxy‐α‐sanshool (326.4 mg; purity: 98.96%), and hydroxy‐β‐sanshool (71.8 mg; purity: 98.26%) were obtained from 600 mg sanshool crude extract. The summarized solvent‐system‐selection strategy and separation procedure incorporating multi‐elution modes may instruct countercurrent chromatography users, particularly novices, seeking to separate compounds with highly similar chemical properties.

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Section: Separation Of Three Kinds Of Sanshool By CCCmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of a general separation strategy by countercurrent chromatography using sanshools from Zanthoxylum bungeanum oleoresin as a case study

Han

Tong

et al. 2023

J of Separation Science

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Arsenosugar extracted from algae: Assessment of countercurrent chromatography for isolation

Morales-Rodríguez,

Sahuquillo,

Minguillón

et al. 2024

Analytica Chimica Acta

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Extraction and Synthesis of Typical Carotenoids: Lycopene, β-Carotene, and Astaxanthin

Jiang,

Ye,

et al. 2024

Molecules

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Carotenoids are tetraterpene compounds acting as precursors to vitamin A, with functions that include protecting eyesight, enhancing immunity, promoting cell growth and differentiation, and providing antioxidative benefits. Lycopene, β-carotene, and astaxanthin are particularly critical for health and have diverse applications in food, health products, and medicine. However, natural carotenoids are encased within cell structures, necessitating mechanical methods to disrupt the cell wall for their extraction and purification—a process often influenced by environmental conditions. Thus, improving the efficiency of carotenoid extraction from natural resources is of great interest. This review delves into the research progress made on the extraction processes, structures, and biological functions of carotenoids, focusing on lycopene, β-carotene, and astaxanthin. Traditional extraction methods primarily involve organic solvent-assisted mechanical crushing. With deeper research and technological advancements, more environmentally friendly solvents, advanced machinery, and suitable methods are being employed to enhance the extraction and purification of carotenoids. These improvements have significantly increased extraction efficiency, reduced preparation time, and lowered production costs, laying the groundwork for new carotenoid product developments.

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Recovery and recycling of solvent of counter‐current chromatography: The sample of isolation of zeaxanthin in the Lycium barbarum L. fruits

Cited by 3 publications

References 29 publications

Development of a general separation strategy by countercurrent chromatography using sanshools from Zanthoxylum bungeanum oleoresin as a case study

Development of a general separation strategy by countercurrent chromatography using sanshools from Zanthoxylum bungeanum oleoresin as a case study

Arsenosugar extracted from algae: Assessment of countercurrent chromatography for isolation

Extraction and Synthesis of Typical Carotenoids: Lycopene, β-Carotene, and Astaxanthin

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