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. 2014 Apr 23;52(5):2974–2981. doi: 10.1007/s13197-014-1355-1

Table 5.

Optimum condition for antioxidant components extraction using microwave assisted extraction (MAE): TPC, FRAP, DPPH, TAC

Optimum condition
 Power (w) 300
 Irradiation time (min) 8
 Solvent concentration percent 25
Predicted values
 TPC, mg tannic acid/gram dry weight algae 1.02
 FRAP, mg tannic acid/gram dry weight algae 0.12
 DPPH, Radical scavenging activity (percent) 99.17
 TAC, mg ascorbic acid/gram dry weight algae 0.18
Actual values
 TPC, mg tannic acid/gram dry weight algae 0.98
 FRAP, mg tannic acid/gram dry weight algae 0.086
 DPPH, Radical scavenging activity (percent) 99.38
 TAC, mg ascorbic acid/gram dry weight algae 0.16