2.3.3. Microwave pretreatment (Variant III)
Raw material samples (30 g dry matter basis) were spread in a
thin layer on a Petri dish and irradiated in a microwave oven KOR-
63X5 (Daewoo, China) for 2 min with 400W microwave power
output and 2450 MHz frequency. After the pretreatment samples
were cooled to room temperature in a desiccator. Further procedure
was the same as in Section 2.3.1.