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. 2021 Dec 8;10(12):1963. doi: 10.3390/antiox10121963

Figure 1.

Figure 1

Mean values of oleuropein content (mg/g olive leaf) in olive leaf powder stored at different temperatures (room temperature (RTs) and 40 °C) and relative humidities (%RH) for 170 days: (a) Control; (b) 75% RH; (c) 57% RH; (d) 23% RH.