Antioxidant and Tyrosinase Inhibitory Activities of Seed Oils from Torreya grandis Fort. ex Lindl.

Figure 2

Determination of the mode of tyrosinase inhibition for the seed oils derived from the five different species of T. grandis. Lineweaver–Burk plots for the tyrosinase activity (diphenolase activity) using L-DOPA as a substrate with seed oil concentrations of 50 (□), 100 (●), 200 (■), 400 (▲), and 800(◆) μg/ml. (The inset represents the slope (Km/Vmax) versus seed oil concentration (μg/ml).) (a) TGSO, (b) XYSO, (c) ZMSO, (d) TGMSO, and (e) CGSO.

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