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Table 2 BACE-1 inhibitory in vitro activity of fractions obtained methanol extract of Curcuma longa rhizomes

From: Effects of curcuminoids identified in rhizomes of Curcuma longa on BACE-1 inhibitory and behavioral activity and lifespan of Alzheimer’s disease Drosophila models

Material % inhibition
  2 mg/ml 1 mg/ml 0.5 mg/ml
Methanol extract 100 65 57
Hexane-soluble fraction 85 48 43
Chloroform-soluble fraction 100 81 71
Ethyl acetate-soluble fraction 84 76 70
Butanol-soluble fraction 82 26 3
Water-soluble fraction 0 0 0