한국식품저장유통학회지 (Food Science and Preservation)

  • 제12권3호
  • /
  • Pages.292-298
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  • 2005
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  • 3022-5477(pISSN)
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  • 3022-5485(eISSN)
한국식품저장유통학회 (The Korean Society of Food Preservation)
권호 표지

고추장의 숙성 중 발효 용기가 품질변화에 미치는 영향

Effects of Vessel on the Quality Changes during Fermentation of Kochujang

  • 정순경 (창원전문대학 제과제빵과) ;
  • 김영숙 (양산대학 식품가공제과제빵과) ;
  • 이동선 (경남대학교 식품생명공학부)
  • Chung Sun-Kyung (Department of Confectionery and Baking, Changwon College) ;
  • Kim Young-Sook (Department of Food Processing and Baking, Yangsan College) ;
  • Lee Dong Sun (Division of Food Science and Biotechnology, Kyungnam University)
  • 발행 : 2005.06.01
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초록

발효식품 담금 용기로 사용되고 있는 유리, polypropylene(PP), polyethylene terephthalate(PET), 스테인레스 용기, 옹기에 고추장을 담아 $30^{\circ}C$에서 4개월 동안 발효하는 동안 물리적, 화학적, 미생물적인 품질변화를 측정하여 담금 용기의 효과를 비교 평가하였다. 높은 기공성을 가진 옹기는 다른 용기에 비해 전체 발효기간에서 높은 호기성 세균수, 젖산균수, 효모수를 보여서 가장 왕성한 발효진행을 보였으며, 이와함께 높은 protease 활성을 유지시키고, 아미노태 질소와 유리 아미노산을 생산하였다. 아울러 옹기에 담금 한 고추장에서는 높은 총산함량과 낮은 pH를 얻게 하였으며, 환원당도 많이 생성시켰다. 이러한 변화는 발효 $2{\sim}3$개월에 완성되어졌다. 하지만 높은 기공성에도 불구하고 옹기에서 발효된 고추장은 타용기구에 비해서 수분손실과 염도상승은 현저하지 않았는데, 이는 시간의 경과에 따라 옹기벽면에서의 기공이 고추장 성분에 의하여 일부 닫혀짐에 의한 것으로 해석된다. 이러한 성분변화의 결과로 인하여 옹기에서 발효된 고추장은 관능적인 품질에서 타 용기처리구에 비해 유의적으로 우수하였다.

Kochujang(Korean red pepper paste) of 600 g was fermented in the different types of vessels (glass, polypropylene(PP), polyethylene terephthalate(PET), stainless steel and Korean porcelain called onggi) with 627 mL of volume during 4 months. The quality changes were monitored for physical, chemical and microbiological attributes. Onggi which had high porosity in the micro-structure provided kochujang with higher microbial counts of aerobic bacteria, lactic acid bacteria and yeasts than those of the other containers. Compared to kochujang fermented in the other containers, kochujang in Onggi showed higher protease activity, amino type nitrogen, and free amino acid content. The kochujang in Onggi also attained higher acidity, lower pH and higher reducing sugar concentration than those in the other containers. All changes were completed 2 or 3 months. Onggi showed water loss and salt increase of the kochujang comparable to those in the other vessels, which was from gradual clogging of the micropores during storage. All physical, chemical and microbiological changes made the kochujang in Onggi attain the sensory quality significantly better than those fermented in the other vessels.

키워드

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