Absrtact: Orthogonal experiment of pepper microwave drying was conducted with water loss rate of pepper and microwave drying equipment as evaluation indexes. The effects of microwave drying parameters on pepper drying quality were comprehensively analyzed. The optimum drying parameters of pepper were obtained as follows: microwave power of 4000W, drying time of 20min, pepper treatment method of drilling holes on pepper surface and microwave working mode. It is 180 s/180 s intermittent heating mode.
Key words: pepper microwave drying; high power; microwave drying; orthogonal test
Pepper has a high content of pigments, which can be used as industrial raw materials to extract natural pigments. It has a certain position in agricultural products and broad market prospects. Chili pepper is widely planted in China. It is widely planted in the South and north. At present, the degree of mechanization of pepper drying in China is very low. The main reason is that there is no efficient and low-cost drying machine for pepper industry.
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