Journal of the East Asian Society of Dietary Life (동아시아식생활학회지)

The East Asian Society of Dietary Life (동아시아식생활학회)
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Effect of Calcium Acetate on the Dough Fermentation and Quality Characteristics of Bread

Calcium Acetate의 첨가가 반죽의 발효와 빵의 품질특성에 미치는 영향

  • 이예경 (대구가톨릭대학교 식품산업학부 식품공학전공) ;
  • 이명예 (대구가톨릭대학교 식품산업학부 식품공학전공) ;
  • 김순동 (대구가톨릭대학교 식품산업학부 식품공학전공)
  • Published : 2003.12.01
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Abstract

This study was conducted to investigate the quality characteristic of bread added with 0, 2, 4 and 8% liquid calcium acetate(LCA-breads) to the dough prepared with brown rice, vinegar and ash of black snail replacing wheat flour. The pH of the dough was 5.38 in control and 5.39∼5.42 in the LCA-broads, which showed that the higher the content of LCA, the higher the pH. There was no big difference of the baking loss between control (10.73%) and LCA-breads(10.11∼10.81%). The loaf volume index was 7.12 in the control, 7.18 in the 2% LCA-bread, while the index was 6.22 in the 4% LCA-bread, 5.80 in the 8% LCA-bread. Calcium content was 16 mg% in the control, 30, 60 and 120 mg% in 2, 4 and 8% LCA-bread, respectively. The hardness, gumminess and brittleness of LCA-breads were higher, while springiness and cohesiveness were lower than that of the control. In the LCA-breads, $L^{*}$ values were lower and $b^{*}$ value was higher than those of the control, while there were no significant difference in af values. Increasing the LCA, air cells were bigger and irregular, and starch matrix was unstable. There were no significant difference in sour and bitter taste. The scores of stickiness of the 2∼4% LCA-breads were similar to that of the control and higher in the 8% LCA-bread. The scores of the flavor and overall taste in the LCA-breads were similar to the control, while the values were lower in the 4∼8% LCA-breads. The shelf-life evaluated by the number of moldy spots was not different between the control and 2% LCA-bread, while it was extended two times in 4% and three times in the 8% LCA-bread.ead.

현미식초와 다슬기회분으로 제조한 액상의 초산칼슘(LCA)을 밀가루에 대하여 2, 4, 8% (v/w)되게 첨가한 빵(LCA-빵)의 품질특성을 조사하였다. 반죽의 pH는 대조구(5.38)보다 첨가구(5.39∼5.42)에서 높았으며 첨가량이 높을수록 높았다. LCA-빵의 굽기손실율은 10.11∼10.81%로 대조구의 10.73%와 뚜렷한 차이를 보이지 않았으며, loaf volume index는 대조구 7.12, 2% 첨가 7.18로 비슷하였으나 4% 및 8% LCA-빵은 각각 6.62 및 5.80으로 낮았다. 칼슘함량은 무첨가 빵에서 16mg/g, 2, 4 및 8% LCA-빵에서는 각각 30, 60, 120 mg/g이었다. LCA-빵의 경도, 점착성, 깨짐성은 대조구보다 높았으나 탄성과 응집성은 낮았다. LCA 첨가빵의 $L^{*}$ 값은 대조구보다 낮았으나 $a^{*}$ 값은 뚜렷한 차이가 없었고 $b^{*}$ 값은 높았다. 현미경 관찰결과 LCA의 첨가량이 증가할수록 기공이 불규칙적이며 전분입자가 불안정한 matrix를 형성하였다. 신맛과 쓴맛은 대조구와 유의적 차이는 없었다. 끈적한 정도는 대조구와 2∼4% LCA빵에서는 차이를 보이지 않았으나 8% LCA-빵에서는 높았다. 풍미와 종합적 기호도는 대조구와 2% LCA-빵은 비슷하였으나 4∼8% LCA-빵에서는 낮은 값을 보였다. 곰팡이 번식정도로 평가한 빵의 저장성은 2% LCA-빵에서는 뚜렷한 차이를 보이지 않았으나 4% LCA-빵은 2배, 8% LCA-빵은 3배로 연장되었다.

Keywords

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