TY - GEN AU - Pitchaon Maisuthisakul TI - Phenolic antioxidants from betel leaf (Piper betel Linn.) extract obtained with different solvents and extraction time SN - 01252437 PY - 0000/// CY - 2551 PB - KW - Betel leaf KW - Phenols KW - Antioxidants ER -