2.2. Instrumentation2.2.1. Operating parameters2.2.1.1. Humidity. To determine the humidity of the leaves, twomoisture analysers, the Sartorius MA 45 and the Ohaus MB45 with anaccuracy of ± 0.01% mg were used. The sample of leaf wasapproximately 1.0 g and was cut and placed in the analyser. Thisprocedure was performed before and after each drying condition.