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We conducted this study to investigate the quality characteristics of mashed red pepper(MRP) with different freezing(-20, -30, -40, -50, -60 or -70℃) and thawing(4, 10, 20, 30, 40 or 50℃) temperature. Frozen and thawed MRP was evaluated for ascorbic acid contents(AsA), capsaicinoids contents, free sugar contents, ASTA value, and flavor patterns. The AsA of frozen MRP with freezing temperature showed a range of 67.08~80.35 ㎎/100 g FW, and the mean AsA losses after frozen were 57~64% compared to raw red pepper. Capsaicinoids contents, free sugar contents, and ASTA values of frozen MRP with freezing temperature were no significant difference compared to raw red pepper. The AsA of thawed MRP with thawing temperature showed a range of 70.34~81.59 ㎎/100 g FW, and the mean AsA losses after thawed were 45.12~52.69% compared to raw red pepper. Capsaicinoids contents and free sugar contents of thawed MRP with thawing temperature were no significant difference compared to raw red pepper, whereas the ASTA value decreased according to the increasing of thawing temperature. Flavor patterns of thawed MRP after 20~50℃ thawing were clearly different from the raw red pepper. Overall, it is recommended that the best freezing and thawing temperature for preserving the quality of MRP is freezing at -20℃ and thawing at 10℃.

Influences of Freezing and Thawing Temperature on the Quality Characteristics of Mashed Red Pepper