Optimization of Extraction Conditions for Flavonoids of Physalis alkekengi var. franchetii Stems by Response Surface Methodology and Inhibition of Acetylcholinesterase Activity
The microwave-assisted extraction conditions of flavonoids in Physalis alkekengi. var. franchetii stems were optimized using a L3³ Box-Behnken Design. The optimized extraction conditions were determined as follows: 60% for the ethanol concentration, 12.4 for the liquid-to-solid ratio, and 531.4 W for the microwave power, respectively. The yield of the extract obtained under the optimized conditions was 3.85 mg g-1 which was close to the predicted value. In addition, the extract exhibited potent acetylcholinesterase inhibitory activity, with the IC50 value of 11.61 μg mL-1 and a maximal inhibition ratio 89.81%. Both the yield and activity were better than reflux extraction.
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| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Química de México A.C.
2015
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-249X2015000100011 |
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