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HPLC chromatograms of (a) T. laurifolia leaf extracts prepared using Soxhlet’s apparatus with 80% v/v ethanol (SE), (b) T. laurifolia leaf extracts prepared using reflux extraction with deionized water (RE), and (c) rosmarinic acid detected at the wavelength of 280 nm; (d) SE, (e) RE, and (f) rosmarinic acid detected at 320 nm.
