발효식품 담금 용기로 사용되고 있는 유리, polypropylene(PP), polyethylene terephthalate(PET), 스테인레스 용기, 옹기에 고추장을 담아 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 높
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.