한국 전통 양념으로 제조한 돼지고기의 숙성중 물리화학적 변화

Abstract

한국 전통 양념 (T1, 된장소스; T2, 마늘소스; T3, 고추장소스)을 이용하여 0<TEX>${\pm}$</TEX> <TEX>$1^{\circ}C$</TEX> 에서 30일 동안 숙성 중 돼지고기의 물리화학적 변화를 측정한 결과는 다음과 같다. 숙성기간동안 양념의 염도와 당도는 유의적으로 감소한 반면, 육에서는 증가하였고(P<0.05), pH는 숙성기간 동안 양념과 육에서 증가하는 경향을 나타내었다. 보수력과 전단력은 모든 처리구에서 숙성 20일에 유의적으로 높게 나타났으나 이후 다시 감소하였고, 육색은 T3의 <TEX>$L^*과 b^* 값은 낮고, a^*$</TEX> 값은 숙성기간 동안 다른 처리구에 비해서 다소 높게 나타났다. VBN은 모든 처리구에서 숙성 20일에 유의적으로 증가하였으며 T3가 다른 처리구보다 높게 나타났다. TBARS는 저장 10일에 급격히 증가하였다가 저장 20일에 감소한 후 다시 증가하였고 T3가 가장 높은 값을 나타내었다. 총균과 유산균은 저장 10에 증가하다 저장 20일에 감소하였으며 그 후 증가하는 경향을 나타내었고 대장균은 저장기간에 따라 감소하였으며 저장 30일에는 모든 처리구에서 나타나지 않았다. 전체적인 기호도는 모든 처리구에서 숙성 초기보다 20일 이후 높게 나타났으며 30일에도 같은 경향을 나타내었다. This study was conducted to investigate physico-chemical changes of pork prepared by Korean traditional 3 types seasoning such as soybean sauce(Tl); garlic sauce(T2); red pepper sauce(T3). The seasoned samples were aged at 0 <TEX>${\pm}$</TEX> <TEX>$1^{\circ}C$</TEX> for 30 days. The results obtained were as follows; Salinity(%) and saccharinity(%) of sauce were significantly decreased(P<0.05) among the all treatments during aging periods, whereas fermented meats were significantly increased(P<0.05). pH of sauce and fermented meat were tended to increased as aging period. Water-Holding Capacity(WHC) and shear force of fermented meat increased(P<0.05) among the all treatments at 20 days of storage, and decreased after that period. In color, <TEX>$L^* and b^* value of T3 were lower, while a^*$</TEX> value was higher than other treatments during aging period. Volatile Basic Nitrogen(YBN) value of all treatments were increased(P<0.05) after 20 days of storage. YBN value of T3 was significantly higher(P<0.05) compared with other treatments. Thiobarbituric Acid Reactive Substances(TBARS) was rapidly increased until 10 days of storage and somewhat decreased up to 20 days after 10 days in all treatments, it was re-increased after 20th days. T3 showed the highest TBARS among the all treatment groups. Total bacterial and Lactobacilli spp. were significantly increased(P<0.05) in all treatments at 10 days of storage and decreased after that period, however it tended to increased at 30 days of storage. In sensory evaluation, overall acceptability in all treatments were increased after 20 days of storage compared to initial storage and it score was similar thereafter.