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  • Title: The effect of ultrasound on lipase-catalyzed regioselective acylation of mangiferin in non-aqueous solvents.
    Author: Wang Z, Wang R, Tian J, Zhao B, Wei XF, Su YL, Li CY, Cao SG, Ji TF, Wang L.
    Journal: J Asian Nat Prod Res; 2010 Jan; 12(1):56-63. PubMed ID: 20390744.
    Abstract:
    A simple and efficient method for regioselective acylation of mangiferin catalyzed by lipase under ultrasound irradiation is reported. Compared with the conventional methods, its main advantages are shorter reaction time and higher yields. The optimum conditions were screened out. Under the optimal conditions (lipase: PCL, acyl donor: vinyl acetate; reaction solvent: DMSO, reaction temperature: 45 degrees C, ultrasonic power: 200 W; substrate ratio: acyl donor/mangiferin 6/1, enzyme loading: 6 mg/ml), the regioselective acylation yield was up to 84%.
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