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Application of continuous supercritical anti-solvents for rapid recrystallization and purification of zeaxanthin dipalmitates from de-glycosides of Lycium barbarum fruits

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Title: Application of continuous supercritical anti-solvents for rapid recrystallization and purification of zeaxanthin dipalmitates from de-glycosides of Lycium barbarum fruits
Authors: Chang, Li-Pin1, Cheng, Jia-Hui1, Hsu, Shih-Lan2, Liau, Bing-Chung1, Wu, Tzong-Ming3, Chang, Chieh-Ming J.1 cmchang@dragon.nchu.edu.tw
Source: Journal of Supercritical Fluids. Jun2011, Vol. 57 Issue 2, p155-161. 7p.
Subjects: Supercritical fluids, Solvents, Glycosides, Lycium chinense, Rhodopsin, Epithelial cells, Oxidation, Acetone, Recrystallization (Chemistry)
Abstract: Abstract: This study employed column elution fractionation coupled with supercritical anti-solvent recrystallization to isolate the purest zeaxanthin dipalmitates (ZP), one of the eye-protecting compounds in the Lycium barbarum fruits. The amount of ZP increased to 983mg/g in liquid anti-solvent precipitates with 29.1% recovery and increased to 929mg/g in supercritical anti-solvent precipitates with 59.6% recovery, respectively from the ultrasonic acetone extract. Experimental data showed that supercritical anti-solvent recrystallization is feasible in producing platelet type precipitates within a few minutes. These ZP compounds exhibit anti-oxidative abilities by proliferating human adult retinal pigment epithelial cells (from 22% to 31%); though it was a meager increase when compared to those of algal 95% zeaxanthin (from 43% to 94%). [Copyright &y& Elsevier]
Copyright of Journal of Supercritical Fluids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 60380705
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Application of continuous supercritical anti-solvents for rapid recrystallization and purification of zeaxanthin dipalmitates from de-glycosides of Lycium barbarum fruits
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  Data: <searchLink fieldCode="AR" term="%22Chang%2C+Li-Pin%22">Chang, Li-Pin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Jia-Hui%22">Cheng, Jia-Hui</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hsu%2C+Shih-Lan%22">Hsu, Shih-Lan</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Liau%2C+Bing-Chung%22">Liau, Bing-Chung</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wu%2C+Tzong-Ming%22">Wu, Tzong-Ming</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Chang%2C+Chieh-Ming+J%2E%22">Chang, Chieh-Ming J.</searchLink><relatesTo>1</relatesTo><i> cmchang@dragon.nchu.edu.tw</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Supercritical+Fluids%22">Journal of Supercritical Fluids</searchLink>. Jun2011, Vol. 57 Issue 2, p155-161. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Supercritical+fluids%22">Supercritical fluids</searchLink><br /><searchLink fieldCode="DE" term="%22Solvents%22">Solvents</searchLink><br /><searchLink fieldCode="DE" term="%22Glycosides%22">Glycosides</searchLink><br /><searchLink fieldCode="DE" term="%22Lycium+chinense%22">Lycium chinense</searchLink><br /><searchLink fieldCode="DE" term="%22Rhodopsin%22">Rhodopsin</searchLink><br /><searchLink fieldCode="DE" term="%22Epithelial+cells%22">Epithelial cells</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Acetone%22">Acetone</searchLink><br /><searchLink fieldCode="DE" term="%22Recrystallization+%28Chemistry%29%22">Recrystallization (Chemistry)</searchLink>
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  Label: Abstract
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  Data: Abstract: This study employed column elution fractionation coupled with supercritical anti-solvent recrystallization to isolate the purest zeaxanthin dipalmitates (ZP), one of the eye-protecting compounds in the Lycium barbarum fruits. The amount of ZP increased to 983mg/g in liquid anti-solvent precipitates with 29.1% recovery and increased to 929mg/g in supercritical anti-solvent precipitates with 59.6% recovery, respectively from the ultrasonic acetone extract. Experimental data showed that supercritical anti-solvent recrystallization is feasible in producing platelet type precipitates within a few minutes. These ZP compounds exhibit anti-oxidative abilities by proliferating human adult retinal pigment epithelial cells (from 22% to 31%); though it was a meager increase when compared to those of algal 95% zeaxanthin (from 43% to 94%). [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Supercritical Fluids is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.supflu.2011.02.008
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 7
        StartPage: 155
    Subjects:
      – SubjectFull: Supercritical fluids
        Type: general
      – SubjectFull: Solvents
        Type: general
      – SubjectFull: Glycosides
        Type: general
      – SubjectFull: Lycium chinense
        Type: general
      – SubjectFull: Rhodopsin
        Type: general
      – SubjectFull: Epithelial cells
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Acetone
        Type: general
      – SubjectFull: Recrystallization (Chemistry)
        Type: general
    Titles:
      – TitleFull: Application of continuous supercritical anti-solvents for rapid recrystallization and purification of zeaxanthin dipalmitates from de-glycosides of Lycium barbarum fruits
        Type: main
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            NameFull: Chang, Li-Pin
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            NameFull: Cheng, Jia-Hui
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            NameFull: Hsu, Shih-Lan
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            NameFull: Liau, Bing-Chung
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            NameFull: Wu, Tzong-Ming
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            – D: 01
              M: 06
              Text: Jun2011
              Type: published
              Y: 2011
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              Value: 57
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            – TitleFull: Journal of Supercritical Fluids
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