Korean journal of food and cookery science (한국식품조리과학회지)

Korean Society of Food and Cookery Science (한국식품조리과학회)
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Characteristics of Quality in Jeung-Pyun with Different amount of raw yeast

생이스트의 첨가비율에 따른 증편의 품질특성

  • Published : 2005.08.01
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Abstract

This study investigate the effects of variations in the mont of raw yeast added to Jeung-Pyun on the quality changes during a storage period ranging from $0\~4days.$ The results of height and volume showed that Jeung-Pyun prepared with the $0.5\%$ raw yeast added had the most fermentation. The rheological properties measured by texturometer were significantly different among the raw yeast-added Jeung-Pyun during the storage period. The degree of hardness of raw yeast-added Jeung-Pyun slowly increased during storage at room temperature ($20^{\circ}$). Hunter's color test showed no significant differences. In sensory evaluation, Jeung-Pyun prepared with $0.5\%$ raw yeast-added had the most favorable quality.

생이스트 첨가량에 따라 증편의 기계적 품질특성을 0, 1, 2, 3 및 4일간 저장하면서 측정하였고 관능적 품질특성을 평가하였다. 증편의 높이와 부피는 생이스트 첨가율 $0.5\%$ 첨가가 가장 높아 발효가 잘 된 것으로 나타났다. 물리적 특성의 경우 견고성은 저장기간에 따라 증가하는 경향을 나타냈으며 이것은 수분함량의 감소와 전분의 노화에 기인한 것이다. 응집성과 탄력성은 저장기간에 따라 점차 감소하는 경향을 보였으며, 점착성과 씹힘성은 저장기간에 따라 증가하는 경향을 보였다. 이는 생이스트를 첨가하여 제조한 증편은 점착성과 씹힘성이 낮게 나타나 생이스트 첨가가 증편의 품질을 향상시키는 것으로 나타났다. 색도는 명도인 L값은 생이스트 첨가량이 높을수록 높게 나타났으며, 저장기간이 경과함에 따라 점차 감소하여 어두운색을 나타내었다. 적색도 a 값의 경우 저장기간에 따라 비슷한 경향을 나타내었으며, 황색도 b값은 3일 경과 후 증가하다가 그 후 감소하는 경향을 나타내었다. 관능적 품질 특성의 경우 증편의 높이와 부피 측정시 $0.5\%$가 가장 높게 나타난 것과 같이 관능검사에서도 생이스트 첨가율 $0.5\%$에서 가장 높은 관능적 평가를 얻었다.

Keywords

References

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