Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Quality Characteristics of Lotus Leaf Jeolpyun during Storage

저장기간에 따른 연잎절편의 품질 특성

  • Published : 2007.12.31
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Abstract

This study was conducted to investigate the quality characteristics of Jeolpyun prepared with different percentages of lotus leaf powder for 4 days. The moisture content of Jeolpyun without lotus leaf powder was 50.63% and those of Jeolpyun with the powder were $50.17{\sim}52.63%$ on 0 day; however, they did not show constant tendency during storage. Total cell counts of Jeolpyun with lotus leaf powder increased less than those of Jeolpyun without the powder during storage. As lotus leaf powder increased, L values of lotus leaf Jeolpyun significantly decreased and their a values significantly increased. As storage time increased, L values of lotus leaf Jeolpyun increased, and a and b values did not show constant tendency during storage. There was no difference between Jeolpyun with lotus leaf powder and Jeolpyun without the powder in hardness and chewiness on 0 day. As lotus leaf powder increased, the hardness and chewiness of lotus leaf Jeolpyun decreased after 1 day. The adhesiveness of 0% lotus leaf Jeolpyun significantly decreased after 2 days, and there was no difference in adhesiveness except for 3% lotus leaf Jeolpyun by 2 days. The springiness of 2% and 3% lotus leaf Jeolpyun was not significantly different for 4 days and the gumminess of all samples increased after 2 days. There was significant difference in cohesiveness between Jeolpyun with lotus leaf powder and Jeolpyun without on 0 day, but there was no great difference during storage. In the sensory evaluation, 2% lotus leaf Jeolpyun showed the highest preference scores; hence, 2% lotus leaf Jeolpyun prepared with 980 g rice flour, 20 g lotus leaf powder, 10 g salt and 360 g water was picked as the best.

연잎가루의 첨가비율을 1, 2, 3, 4%로 달리하여 제조한 연잎 절편의 기계적, 관능적 품질특성을 4일간 저장하면서 평가하였다. 연잎절편의 수분함량은 제조 직후 대조구는 50.63%이었고, 연잎절편은 $50.17{\sim}52.63%$로 연잎가루 첨가량이나 저장기간에 따른 일정한 경향을 보이지 않았다. 연잎절편은 저장기간 동안 연잎을 첨가하지 않은 대조구보다 총균수가 더 적게 증가하였다. 연잎절편의 L값은 연잎가루의 비율이 증가할수록 유의적으로 감소하였고, 저장기간이 길어질수록 증가하였다. 연잎절편의 a값에서 연잎 가루의 비율이 증가할수록 유의적으로 증가하였고, 저장기간에 따른 a값과 b값은 일정한 경향이 나타나지 않았다. 제조 직후에는 연잎가루의 첨가비율에 따른 경도와 씹힘성은 큰 차이가 없었지만, 저장 1일부터 연잎가루를 첨가할수록 유의적으로 경도와 씹힘성은 낮아졌다. 저장 1일부터 대조구의 부착성은 유의적으로 줄어들었고, 3% 연잎절편만 제외하고 저장 2일까지 부착성에 큰 차이가 없었다. 2%와 3% 연잎절편의 탄력성은 저장 4일 동안 유의적인 차이가 없었고, 검성은 저장 2일부터 모든 구에서 유의적으로 증가하였다. 응집성은 제조 직후 대조구와 연잎절편 간에 유의적인 차이가 있었고, 저장기간 동안에는 큰 변화가 없었다. 연잎절편의 정량적 묘사분석에서 색, 향, 맛에서는 연잎가루를 첨가할수록 강도가 증가하였고, 씹힘성에는 대조구와 연잎절편 간에 유의적인 차이를 보이지 않았다. 연잎 절편의 기호도 검사에서 색, 향, 맛, 전체적인 기호도에서 2% 연잎가루를 첨가한 연잎절편이 가장 기호도가 높았다. 이상의 연구를 통해 연잎절편으로 가장 적당한 제조방법은 쌀가루 980 g, 연잎가루 20 g, 소금 10 g, 수분 360 g으로 제조한 2% 연잎절편이었다.

Keywords

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