Quality Characteristics of White Bread made with Flour of Wheat Cultured with Pleurotus ostreatus

Pleurotus ostreatus을 배양한 밀 분말 첨가가 식빵의 품질 특성에 미치는 영향

  • Kim, Han-Sup (Dept. of Food Science and Food Service Industry, Yeungnam University) ;
  • Chung, Hyun-Chae (Dept. of Food Science and Food Service Industry, Yeungnam University) ;
  • Bae, Jong-Ho (Dept. of Confectionery Decoration, Daegu Mirae College) ;
  • Han, Gi-Dong (Dept. of Food Science and Food Service Industry, Yeungnam University)
  • 김한섭 (영남대학교 자연자원대학 식품학부 식품공학전공) ;
  • 정현채 (영남대학교 자연자원대학 식품학부 식품공학전공) ;
  • 배종호 (대구미래대학 제과데코레이션과) ;
  • 한기동 (영남대학교 자연자원대학 식품학부 식품공학전공)
  • Received : 2012.11.05
  • Accepted : 2012.12.29
  • Published : 2012.12.31

Abstract

This study was carried out to investigate the quality characteristics of white bread made with flour of wheat cultured with Pleurotus ostreatus(POW). The property of the wheat used for the solid-state cultivation of the Pleurotus ostreatus was examined. The hydration time of wheat with cold water was 10 hours, with a final moisture content of 39%, which was much less than the optimum moisture content for mycelial growth. However, hot water soaking reduced the required hydration time of the wheat, and elevated the moisture content to 65% within 90~120 min. The POW was composed of 7.2% moisture, 15.4% protein, 1.1% fat, 1.7% ash and 2.9% fiber. The POW was substituted for wheat flour in white bread recipes at weight percentages of 0%, 2.5%, 5%, 7.5% and 10%. The weight, volume and fermentation of the dough tended to decrease with increasing POW content. The color of the bread crust and crumb darkened with increasing POW content. A sensory evaluation showed a high preference for the white bread made with 5% POW, indicating that the addition of 5% POW to flour for bread dough could improve the quality characteristics of white bread. These study results also provide useful information for using the flour of wheat cultured with Pleurotus ostreatus as an ingredient source for food processing.

밀에 대한 느타리버섯 균사체 배양 특성 및 균사체 배양밀가루를 첨가한 제빵 적성에 대하여 조사하였다. 느타리버섯 균사체를 접종하기 위해서는 온수를 이용한 침지가 냉수보다 유용하였으며, 균사체가 배양된 밀은 통밀보다 수분함량이 높은 것으로 나타났으나 일반 성분에는 큰 차이를 보이지 않았다. 이러한 균사체배양 밀가루의 첨가량을 달리하여 식빵을 제조한 결과, 첨가량이 증가할수록 식빵의 무게, 부피 및 반죽의 발효 팽창력은 모두 대조구에 비하여 전체적으로 감소하였다. Crust와 crumb의 색도는 균사체 배양 밀가루 첨가량이 증가함에 따라 전체적으로 감소하였다. 관능 평가결과, 향과 맛 그리고 종합적인 기호도에서 균사체 배양 밀가루 5% 첨가군이 높은 기호도를 나타내어, 균사체 배양 밀가루를 실제 제빵에 이용할 경우 5% 미만이 적절할 것으로 사료된다. 이러한 연구는 기능성 소재를 이용한 제빵 제조에 유용한 정보를 제공하며 또한 균사체 배양 밀가루의 식품소재로의 이용에 도움을 줄 것으로 사료된다.

Keywords

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