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標題: Application of continuous supercritical anti-solvents for rapid recrystallization and purification of zeaxanthin dipalmitates from de-glycosides of Lycium barbarum fruits
作者: Chang, L.P.
Cheng, J.H.
Hsu, S.L.
Liau, B.C.
Wu, T.M.
Chang, C.M.J.
期刊/報告no:: Journal of Supercritical Fluids, Volume 57, Issue 2, Page(s) 155-161.
摘要: 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 983 mg/gin liquid anti-solvent precipitates with 29.1% recovery and increased to 929 mg/gin 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%). (C) 2011 Elsevier B.V. All rights reserved.
ISSN: 0896-8446
Appears in Collections:材料科學與工程學系



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