Quality Changes and Shelf-life of Grill Sausages Re-pasteurized after Packaging during Chilled Storage

이차살균한 그릴소시지의 냉장 저장 중 품질 변화와 저장 수명

  • Published : 2004.03.01

Abstract

Changes in quality characteristics and shelf-life of two types of grill sausage manufactured by using pork hind leg and re-pasteurized after packaging were investigated during storage at 5$^{\circ}C$ and 10$^{\circ}C$ up to 30 days. The total aerobic plate counts(APC) of N rnberger style grill sausage(NGS) and vegetable added grill sausage(VGS) were initially 3.08 and 3.57 log$\sub$10/CFU/$\textrm{cm}^2$, respectively, and gradually increased during storage time. After 30 days, the APC of NGS stored at 5$^{\circ}C$ and 10$^{\circ}C$ maintained relatively low at the levels of 5.32 and 6.58 log$\sub$10/CFU/$\textrm{cm}^2$, respectively. However, the APC of VGS exceeded the level of 8 log$\sub$10/CFU/$\textrm{cm}^2$ after 30 days at 5$^{\circ}C$ and after 20 days at 10$^{\circ}C$. pH was decreased with storage period, however it tended to increase after 30 days. The values of TBA and VBN for both sausages tended to increase with storage time, and this trend was pronounced at 5$^{\circ}C$ rather than at 10$^{\circ}C$. The purge loss was apparently increased in the VGS compared to the NGS sample as the storage period extended. According to the sensory evaluation, the marketing values of grill sausages stored at 5$^{\circ}C$ and 10$^{\circ}C$ were maintained until day 20 for NGS and day 14 for VGS, respectively.

돼지 후지 육을 이용하여 두 종류의 그릴소시지를 제조하여 포장한 후 8$0^{\circ}C$에서 30분간 이차살균 한 다음 5$^{\circ}C$와 1$0^{\circ}C$에서 각각 냉장 저장하며 이화학적 품질 특성의 변화와 저장수명을 조사하였다. 양 소장에 충전된 그릴소시지(NGS)와 돈소장에 충전된 그릴소시지(VGS)에서의 총 균수는 저장 0일째 각각 3.08과 3.57 log$_{10}$CFU/$\textrm{cm}^2$ 수준이었으나 저장기간이 연장될수록 증가하였다. NGS 소시지는 저장 30일 후 총 균수가 5$^{\circ}C$와 1$0^{\circ}C$ 저장 온도에서 각각 5.32와 6.58 log$_{10}$CFU/$\textrm{cm}^2$로 비교적 낮은 편이었으나 VGS 소시지에서는 총 균수가 각각 30일과 20일 후 8 log를 넘어섰다. pH는 저장기간이 연장될수록 점차 감소하다가 저장 말기에 다시 증가하는 경향을 보였다. TBA와 VBN값은 저장기간이 연장될수록 증가하는 경향을 보였고 5$^{\circ}C$에서 보다는 1$0^{\circ}C$에서 더욱 두드러지게 나타났다. 육즙 삼출량은 저장 기간이 연장될수록 NGS보다 VGS 소시지에서 높게 나타나는 경향이 두드러졌다. 관능검사 결과 5$^{\circ}C$와 1$0^{\circ}C$에서 NGS 소시지는 20일째까지, 그리고 VGS 소시지는 14일째까지 상품성을 가지고 있는 것으로 확인되었다.

Keywords

References

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