순창 고추장민속마을에서 생산한 전통 장류의 이화학적 특성

Physicochemical Characteristics of Traditional Fermented Soybean Products Manufactured in Folk Villages of Sunchang Region

  • 김종욱 (전북대학교 응용생물공학부(식품공학)) ;
  • 김용석 (전북대학교 바이오식품 소재개발 및 산업화 연구센터) ;
  • 정평화 (전북대학교 응용생물공학부(식품공학)) ;
  • 김형은 (전북대학교 응용생물공학부(식품공학)) ;
  • 신동화 (전북대학교 응용생물공학부(식품공학))
  • Kim, Jong-Wook (Faculty of Biotechnology (Food Science & Technology Major), Chonbuk National University) ;
  • Kim, Yong-Suk (Research Center for Industrial Development of BioFood Materials, Chonbuk National University) ;
  • Jeong, Pyeong-Hwa (Faculty of Biotechnology (Food Science & Technology Major), Chonbuk National University) ;
  • Kim, Hyung-Eun (Faculty of Biotechnology (Food Science & Technology Major), Chonbuk National University) ;
  • Shin, Dong-Hwa (Faculty of Biotechnology (Food Science & Technology Major), Chonbuk National University)
  • 발행 : 2006.12.30

초록

전통 고추장, 된장 및 청국장 등 전통 장류의 품질 균일화와 제조방법 표준화를 위한 기초 연구로서 순창 고추장 민속마을내 제조업체 28개소에서 고추장 28점, 된장 28점 및 청국장 18점을 수집하여 이화학적 특성을 분석하였다. 고추장, 된장 및 청국장의 수분함량은 각각 평균 $46.9{\pm}3.6,\;60.6{\pm}1.9$$57.0{\pm}3.10%$이었다. 평균 수분함량 기준시 고추장의 조단백질 함량은 $6.2{\pm}0.7%$, 조지방 $2.0{\pm}0.5%$, 조회분 $8.2{\pm}1.1%$, 된장은 조단백질 $13.2{\pm}1.0%$, 조지방 $7.1{\pm}0.6%$, 조회분 $15.2{\pm}1.5%$, 청국장은 조단백질 $18.9{\pm}1.2%$, 조지방 $6.1{\pm}1.4%$, 조회분 $5.1{\pm}1.7%$ 이었다. 고추장의 환원당 함량은 $19.25{\pm}4.1%$, 염도 $7.3{\pm}1.1%$, 수분활성도 $0.790{\pm}0.003$이었고, 된장은 환원당 $2.38{\pm}0.89%$, 염도 $14.2{\pm}1.4%$, 수분활성도 $0.835{\pm}0.020$ 이었으며, 청국장은 환원당 $0.51{\pm}0.24%$, 염도 $4.2{\pm}1.6%$, 수분활성도 $0.962{\pm}0.028$ 이었다. 장류의 구수한 맛에 영향을 미치는 아미노태 질소 함량은 고추장이 $114.03{\pm}19.04mg%$, 된장이 $734.32{\pm}147.70mg%$, 청국장이 $600{\pm}150mg%$ 이었다. 색도를 측정한 결과 L(명도), a(적색도) 및 b(황색도)값의 평균치는 고추장은 각각 $14.49{\pm}1.44,\;15.45{\pm}1.77$$8.34{\pm}1.02$로 나타나 적색도에 있어서 다소 낮게 나타났고, 된장은 각각 $26.69{\pm}4.33,\;7.25{\pm}1.03$$12.02{\pm}1.82$로서 명도와 황색도가 다소 낮게 나타났다. 청국장은 각각 $35.62{\pm}2.05,\;6.31{\pm}0.37$$13.50{\pm}0.78$로 나타나 명도와 황색도에 있어서 다소 낮게 나타났다.

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