양파 껍질 성분이 Press Ham의 지방산패도와 육색의 변화에 미치는 효과

Effects of Onion Peel Components on Lipid Oxidation and the Changes of Color in Press Ham

Effects of onion peel (OP) components (quercetin and rutin) in press ham on TBARS, pH, redness (a*) and flavor (panel test) were investigated during cold storage. TBARS in OP samples of high concentration was significantly (P〈0.05) lower than control during cold storage. This result suggests that OP components have an antioxidant activity in press ham. Also, redness of OP samples was significantly (P〈0.05) higher than control after three weeks of cold storage. Cured ham redness could be improved through lower pH of OP samples compared to that of control. However, flavor score of OP samples was not significantly (P〉0.05) different with control during cold storage. It could be possible that OP components plays role as an antioxidant without any negative effects on plavor of press ham. 양파 껍질을 급여한 돼지로부터 quercetin 및 rutin을 축적시킨 돈육을 원료육으로 하여 제조한 햄을 4주 동안 냉장 저장하면서 지방산패도(TBARS), pH, 육색(적색도) 및 향미의 변화를 조사하였다. TBARS의 경우 저장 3주부터 양파부산물 급여량이 높은 처리구가 유의적으로(P〈0.05) 낮은 수치를 보여 양파 껍질 성분의 항상화 효과가 인정되었다. 또한 저당 3주이후 대조구와 비교해 처리구가 유의적으로 (P〈0.05) 높은 적색도를 나타내었다. 이러한 결과는 양파 껍질 성분이 육제품의 변색을 억제할 수 있을 것으로 사료된다. 처리구의 염지 육색이 증진된 것은 처리구의 pH가 대조구에 비해 상대적으로 낮은 것으로 설명되었다. 한편, 향미의 관능검사 결과 처리구와 대조구 사이에 유의적인 차이는 인정되지 않았는데(P〉0.05), 이는 양파 껍질 성분의 항상화제로서의 역할과 향미에 미치는 영향이 다소 미미하였기 때문으로 사료된다.

Effects of onion peel (OP) components (quercetin and rutin) in press ham on TBARS, pH, redness (a*) and flavor (panel test) were investigated during cold storage. TBARS in OP samples of high concentration was significantly (P〈0.05) lower than control during cold storage. This result suggests that OP components have an antioxidant activity in press ham. Also, redness of OP samples was significantly (P〈0.05) higher than control after three weeks of cold storage. Cured ham redness could be improved through lower pH of OP samples compared to that of control. However, flavor score of OP samples was not significantly (P〉0.05) different with control during cold storage. It could be possible that OP components plays role as an antioxidant without any negative effects on plavor of press ham.