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http://dx.doi.org/10.9713/kcer.2015.53.6.831

Influence of Zeta Potential on Fractional Precipitation of (+)-Dihydromyricetin  

Ha, Geon-Soo (Department of Chemical Engineering, Kongju National University)
Kim, Jin-Hyun (Department of Chemical Engineering, Kongju National University)
Publication Information
Korean Chemical Engineering Research / v.53, no.6, 2015 , pp. 831-835 More about this Journal
Abstract
This study evaluated the influence of the zeta potential of silica-alumina on the behavior in terms of purity, yield, and precipitate shape and size of fractional precipitation in the fractional precipitation process for the purification of (+)-dihydromyricetin. The optimal silica-alumina amount (surface area per working volume of reacting solution) for zeta potential control was $100mm^{-1}$. As the zeta potential value of silica-alumina increased, (+)-dihydromyricetin yield and precipitate size were increased. The use of silica with the highest value of the zeta potential (+4.99 mV) as a zeta potential-controlling material increased the (+)-dihydromyricetin yield by 2-fold compared with that of the use of alumina with the lowest value of the zeta potential (-19.00 mV). In addition, the (+)-dihydromyricetin yield and precipitate size was inversely correlated with the absolute value of the zeta potential. On the other hand, the purity of (+)-dihydromyricetin had almost no effect on changes in the zeta potential of silica-alumina.
Keywords
(+)-Dihydromyricetin; Purification; Fractional Precipitation; Silica-Alumina; Zeta Potential;
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Times Cited By KSCI : 5  (Citation Analysis)
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