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Research Article

α-Glucosidase inhibitory activity of cyanidin-3-galactoside and synergistic effect with acarbose

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Pages 65-69 | Received 28 Oct 2007, Accepted 23 Nov 2007, Published online: 20 Oct 2008

Figures & data

Figure 1.  The chemical structure of cyanidin-3-galactoside.

Figure 1.  The chemical structure of cyanidin-3-galactoside.

Figure 2.  The percentage enzyme inhibition of acarbose and its combination with cyanidin-3-galactoside(Cya3Gal) on intestinal α-glucosidase (sucrase). Results were expressed as mean ± S.E.M., n = 3. * P < 0.01 compared to acarbose alone.

Figure 2.  The percentage enzyme inhibition of acarbose and its combination with cyanidin-3-galactoside(Cya3Gal) on intestinal α-glucosidase (sucrase). Results were expressed as mean ± S.E.M., n = 3. * P < 0.01 compared to acarbose alone.

Figure 3.  The percentage enzyme inhibition of acarbose and its combination with cyanidin-3-galactoside(Cya3Gal) on intestinal α-glucosidase (maltase). Results were expressed as mean ± S.E.M., n = 3. * P < 0.01 compared to acarbose alone.

Figure 3.  The percentage enzyme inhibition of acarbose and its combination with cyanidin-3-galactoside(Cya3Gal) on intestinal α-glucosidase (maltase). Results were expressed as mean ± S.E.M., n = 3. * P < 0.01 compared to acarbose alone.

Figure 4.  (A) The data were presented in a Lineweaver–Burk plot, 1/v against l/[S]. (B) Secondary replot of slope vs. [I] from a primary Lineweaver–Burk plot for the determination of Ki. The value of R2 and slope were 0.990 (C) Secondary replot of intercept vs. [I] from a primary Lineweaver–Burk plot for the determination of Ki′. The value of R2 and slope were 0.991.

Figure 4.  (A) The data were presented in a Lineweaver–Burk plot, 1/v against l/[S]. (B) Secondary replot of slope vs. [I] from a primary Lineweaver–Burk plot for the determination of Ki. The value of R2 and slope were 0.990 (C) Secondary replot of intercept vs. [I] from a primary Lineweaver–Burk plot for the determination of Ki′. The value of R2 and slope were 0.991.

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