Oleh: Candra Irawan (Akademi Kimia Analisis Bogor)

Having been researched antioxidant bioassay with DPPH method of n-hexane, ethyl acetic, and methanol extracts of leaf Piper crocatum Ruiz & Pav. The IC50 values for n-hexane, ethyl acetic, and methanol extracts were 42,34 ppm; 36,80; and 3,44 ppm.

Key words : DPPH; Piper crocatum Ruiz & Pav; IC50 value

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