To extend the shelf-life of chicken breast meat, samples were treated with gel-packs containing slow-released ClO2 gas at 7-15 ppm for 8 days at 4℃. And the changes in lipid oxidation and taste compounds of the samples were investigated. TBARS value of the chicken breast was slightly increased during storage. TBARS value of gas treatments was similar to the control during storage. There were 14 fatty acids in the chicken breast. And there was no change in the fatty acid composition during storage, and there was no significant difference between the control and gas treatments. The content of free amino acids was gradually increased during storage. The content of free amino acids were not significantly different between the control and gas treatments during storage. The content of GMP in the control and gas treatments were decreased during storage. However, gas treatments showed slightly higher content than that of control. AMP was not significantly different between the control and gas treatments. IMP gradually decreased during storage and the content of inosine and hypoxanthine was increased. IMP, inosine and hypoxanthine contents of gas treatment were similar to control, but the control tended to change more rapidly than those of gas treatments.

To prolong the shelf-life of chicken breast meat, samples were treated with gel packs containing slow-released chlorine dioxide (ClO2) gas at 7~15 ppm for eight days at 4℃. The microbial, physicochemical properties and sensory evaluation of the treated samples were investigated. The total number of bacteria in the control increased during storage and showed 6.78 log CFU/g on the 8th day of storage, but ClO2 gas treatments showed 6.24~6.58 log CFU/g at the same time. The initial pH of chicken breast meat was 6.00 and gradually increased during storage. And ClO2 gas treatments did not show any significant difference from the control during storage period, but maintained a generally lower pH than that of the control. The lightness, redness, and yellowness during storage were not significantly different between the control and the 7~10 ppm ClO2 gas treatments. However, as the storage period was increased, the redness of 15 ppm ClO2 gas treatment was reduced. The cooking loss and shear force were not different between the control and ClO2 gas treatments during the storage period. Volatile basic nitrogen (VBN) increased in the control from the 6th day of storage and 23.80 mg% in the 8th day of storage. However, VBN of ClO2 treatments showed lower than that of the control. In the change of sensory evaluation during storage, 10 ppm ClO2 treatment showed the highest preference in odor, appearance and overall acceptance during storage period.

본 연구는 닭가슴살(5, 15, 25%)과 기계발골 계육(5, 15, 25, 35%)의 첨가 수준을 달리하여 제조한 소 시지의 품질특성을 조사하여 육가공제품의 원료로 적정 첨가 수준을 구명하고자 실시하였다. 닭가슴살을 첨가한 소시지는 수분과 단백질 함량이 증가하였으나, 지방함량이 감소하였다. 기계발골 계육 첨가는 소 시지의 수분과 단백질 함량을 감소시키고, 지방함량을 증가시켰다. 무기물의 경우 닭가슴살 첨가가 소시 지의 인, 나트륨, 구리 함량을 증가시켰으며, 기계발골 계육 첨가는 칼슘, 철 함량을 증가시켰다. 닭가슴 살 또는 기계발골 계육을 첨가한 소시지는 pH를 감소시켰다. 닭가슴살 첨가는 소시지의 명도를 증가시키 고, 적색도와 황색도를 감소시켰으며, 기계발골 계육을 첨가한 소시지는 명도가 감소하고, 적색도와 황색 도가 증가하였다. 조직감에서 닭가슴살 첨가는 경도, 탄력성, 검성, 씹힘성이 증가하였으나, 기계발골 계 육 첨가는 경도, 탄력성, 검성, 씹힘성을 감소시켰다. 관능적 특성에서 기계발골 계육 첨가는 저작감을 감소시켰다. 기계발골 계육 첨가는 육색에는 긍정적인 영향을 미치나, 조직감을 저해시키고 단백질 함량 을 낮추어, 기계발골 계육을 첨가할 경우 5% 이하로 첨가해야 할 것으로 사료된다.

To develop an elderly diet food that can easily be chewed and swallowed, we manufactured elderly diet food using chicken breast meat with various amounts (0.9, 1.1, 1.3 and 1.5 g) of gelatin used as a viscosity agent, and evaluated their physico-chemical and sensory properties. As the amount of gelatin decreased, the lightness were increased, but the redness and yellowness were decreased. In the texture profile analysis, hardness, springiness, gumminess and chewiness were significantly increased with increased amounts of gelatin, but adhesiveness gradually decreased. Cohesiveness was no significantly difference. Free amino acid contents in elderly diet food using chicken breast meat did not show trend to increase or decrease, but the tyrosine contents were significantly decreased with increased amounts of gelatin. The sensory evaluations including taste, flavor and color were not significantly different. However, the texture and overall acceptance of elderly diet food using chicken meat containing 1.3 g of gelatin had the highest acceptance.

저장온도는 닭고기 가슴살의 미생물학적 품질에 유의적 영향을 주었다. 에서 저장된 비조사시료에서 총균수와 대장균수는 저장후 3일 동안 현저히 증가하였고, 10 kGy 이상의 감마선조사에 의하여 사멸되었다. 에서 저장된 시료의 총균수와 대장균수는 5 kGy이상의 감마선조사에 의하여 검출제한(< 2 log CFU/g) 미만으로 감소되었다. 일반적으로 비조사시료와 조사시료 간의 TBA값에는 유의적 차이가 없었으며, 2주 동안의 저장에서 조사시료의 IB