Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Preparation and Characteristics of Soybean Curd Using Cuttle Bone Powder Treated with Acetic Acid

유기산처리 갑오징어갑 분말을 이용한 두부의 제조 및 특성

  • Kim, Jin-Soo (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University) ;
  • Cho, Moon-Lae (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University) ;
  • Heu, Min-Soo (Division of Marine Bioscience/Institute of Marine Industry, Gyeongsang National University)
  • 김진수 (경상대학교 해양생물이용학부,경상대학교 해양산업연구소) ;
  • 조문래 (경상대학교 해양생물이용학부,경상대학교 해양산업연구소) ;
  • 허민수 (경상대학교 해양생물이용학부,경상대학교 해양산업연구소)
  • Published : 2003.05.31
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Abstract

Soybean curd was prepared using cuttlebone powder treated with acetic acid (ATC), and its characteristics were determined. Soybean protein was coagulated by adding calcium chloride, magnesium chloride, and ATC at 0.7, 1.2, and 0.9%, respectively, or higher. Yield, white index, texture, and sensory evaluations revealed the optimal concentration of ATC for preparation of soybean curd was 2.0% of total soybean weight. The proximate compositions of soybean curd prepared by adding 2.O% ATC were 75.9%, 12.6%, 1.9%, 5.3%, 6.60, and $1.0×10^4$ CFU/g in for moisture, crude protein, crude ash, crude lipid, pH, and viable cell count, respectively. Although white index and mineral content of both soybean curds were similar, texture of ATC-prepared soybean curd was superior to that of soybean curd prepared with 1.5% calcium chloride.

수산가공 부산물인 갑오징어갑의 효율적 이용을 목적으로 아세트산 처리 갑오징어갑 분말(이하 갑오징어갑 북말)을 이용한 일반 두부의 제조를 시도하였고, 아울러 이의 특성에 대하여 살펴보았다. 두유의 응고능 실험에서 대두 단백질의 응고는 염화칼슘 0.7% 이상, 염화마그네슘 1.2% 이상 및 갑오징어갑 분말 0.9% 이상 첨가하는 경우 진행되었다. 따라서, 갑오징어갑 분말은 우수한 두부 응고제로 판단되었다. 수율, 백색도, 조직감 및 관능검사의 결과로 미루어 보아 갑오징어갑 분말로 두부를 제조하고자 하는 경우 최적 첨가비율은 2.0%로 판단되었다. 갑오징어갑 분말을 응고제로 하여 최적조건에서 제조한 두부의 일반성분으로는 수분이 75.9%, 조단백질이 12.6%, 조회분이 1.9% 및 조지방이 5.3%이었으며 pH는 6.60, 생균수는 $1.0{\times}10^4\;CFU/g$으로 식품위생법규에서 규제하고 있는 이미 및 이취(없어야 함), 고형물량(건물당 12% 이상), 회분(건물당 7% 이하)및 조단백질(건물당 40% 이상)함량에 대한 것을 모두 충족하였다. 또한 이 두부는 염화칼슘으로 제조한 두부에 비하여 색조 및 칼슘과 같은 기능성 무기성분의 함량은 유사하였고, 조직감은 부드러워 소비자의 기호를 충족시킬 수 있는 제품으로 판단되었다.

Keywords

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