The characteristics of green peppers were investigated after treated with hot-air drying at temperatures of 55, 60, 65 and 70 ℃. Then the qualities of dried peppers were analyzed and compared. The results showed that the drying rate and decline of water activity (aw) were faster as the hot-air drying at higher temperature. Compared with other dried peppers, the treatment dried at 70 ℃ displayed higher the preservation of chlorophyll, Vc, rehydration radio, the hardness and toughness. However, the drying time was too long when peppers dried at 55 ℃, which could cause high production costs. Considered the qualities of dried peppers, the temperature of 60 ℃ was suitable for drying pepper products.

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