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Adelina Simamora 1, , Lusia Paramita1 , Nur Azreen Binti Mohamad Hamid1, Adit Widodo Santoso2 , Kris Herawan Timotius1

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Table 1. Total phenolic and flavonoid content of aqueous extracts from P. guajava.
Figure 1. Kinetics of inhibition on α-glucosidase by aqueous leaf extract of P. guajava (a) and acarbose (b).
Figure 2. Reducing activities of aqueous extracts from P. guajava and standards as measured by reducing power method (a) and phosphomolybdate method (b)
Figure 3. Correlation between DPPH inhibition (%) and total phenolic compound (µg GAE/mL) (a) and between DPPH inhibition (%) total flavonoid content (µg RE/mL) of aqueous extracts from P

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