논문 상세보기
pp.552-557
열처리가 절단 감자의 품질에 미치는 영향을 조사하고자, 원형감자를 건열 및 습열처리하거나, 박피절단한 후 습열처리 하였다. 감자의 열처리조건은 원형감자의 경우 각각 에서 60분이었으며, 절단후 열처리한 감자의 경우의 열수에 45초간 침지하였다. 각각 열처리하여 제조된 감자절편은 표면의 물기를 제거한 다음, 필름봉지(LDPE, , 15 cm x 20 cm)에 약 200 g씩 포장하여 에 저장하면서 품질변화를 조사하였다. 열처리는 전반적으로 호흡률을
Effect of pre- and post-mild heat treatment on quality of fresh-cut potatoes was investigated with the focus on surface color, firmness, phenolics, vitamin C and sensory characteristics. As the pre-heat treatment before cutting of potatoes, dried hot air (DH) and hot water (WH) treatment were conducted at for 60 min, respectively. As a post-heat (CH) treatments, potato cubes were dipped into water of for 45 seconds after cutting. The potato cubes were packed in 15 cm x 20 cm LDPE pouches thick and then stored at . The respiration rate of fresh-cut potatoes was decreased by mild heat treatment Especially, the rate of cubes treated with DH was decreased by compared to that of the non-heat treated. L value of cubes treated with DH showed higher value than that of others. Firmness and free phenolics had no significant difference between the treatments. The fresh-cut potatoes prepared with non-heat treatment showed higher vitamin C content than that of the heat treated. In sensory visual color, CH treated cubes marked the best quality. Conclusively, mild heat treatment, especially CH treatment, showed positive effect on browning inhibition and quality enhancement of fresh-cut potatoes.
