Journal of Animal Science and Technology

Korean Society of Animal Sciences and Technology (한국축산학회)
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Combination Effect of Packaging and Electron Beam Irradiation on Quality Traits of Fermented Sausages During Storage

전자선조사와 포장방법이 발효소시지의 냉장 저장 중 품질 특성에 미치는 영향

  • Lim, D.G. (Department of Animal Science and Biotechnology, Seoul National University) ;
  • Lee, Moo-Ha (Department of Animal Science and Biotechnology, Seoul National University)
  • 임동균 (서울대학교 동물생명공학전공) ;
  • 이무하 (서울대학교 동물생명공학전공)
  • Published : 2007.08.31
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Abstract

The study was carried out to examine combined effects of packaging and electron-beam irradiation on lipid oxidation and meat color of fermented sausages during storage. Fermented and aged sausages were exposed to electron-beam at 2 kGy. The samples were vacuum or aerobic-packaged with the non-irradiated samples at 4±1℃. Regardless of irradiation, the pH values of vacuum-packaged samples was lower than those of aerobic-packaged ones at 14 day (p<0.05). Total microbes and lactic acid bacteria counts significantly decreased during the storage period (p<0.05). And counts of non-irradiated samples were significantly higher than those of irradiated (2 kGy) samples with aerobic packaging. The TBARS values of 2 kGy-irradiated samples were significantly higher than those of non-irradiated samples. The TBARS values of vacuum packaged samples had lower than those of aerobic-packaged ones (p<0.05). Colors (parameters L*, a* and b* values) tended to decrease as the storage period increased. Redness(a*) and yellowness (b*) of 2 kGy irradiated samples were higher than those of non-irradiated ones (p<0.05). In sensory analysis, irradiated (2 kGy) samples with aerobic packaging had higher off-flavor than non-irradiated ones (p<0.05). Therefore, results indicated that irradiation coupled with vacuum packaging may minimize TBARS values of irradiated sausages during storage.

본 실험은 전자선 조사와 포장방법을 병행하여 저장기간에 따른 발효소시지의 지질산화와 육색에 미치는 영향을 조사하였다. 발효, 숙성과정을 통해 얻어진 발효소시지를 총흡수선량이 2 kGy가 되도록 전자선 조사한 후 진공포장과 함기포장으로 나누어 4±1℃에서 저장하면서 실험을 수행하였다. 조사유무와 상관없이 저장 14일째 pH의 경우 진공포장처리구가 함기포장처리구보다 유의적으로 더 높은 수치를 보였다(p<0.05). 총균수와 젖산균수의 경우 저장기간에 따라 미생물수가 감소하였고, 함기포장의 경우 저장 7일차의 비조사구가 조사구(2 kGy)보다 미생물수가 유의적으로 더 높았다(p<0.05). 저장 TBA 값의 경우 조사구(2 kGy)가 비조사구보다 더 높았고, 진공포장한 시료의 TBA 값이 함기포장한 시료보다 더 낮았다(p<0.05). 저장기간에 따라 L*, a* 그리고 b* 값이 감소하는 경향을 나타내었고, 조사구(2 kGy)가 비조사구보다 a*와 b* 값이 더 높게 나타났다(p<0.05). 관능평가의 경우는 향기와 불쾌취에 있어 함기포장시료에서 조사구(2 kGy)가 비조사구보다 유의적으로 더 높은 수치를 나타내었다(p<0.05). 따라서 저장기간동안 비조사구보다 조사처리구(2 kGy)에서 훨씬 높은 산패도를 나타냈으며, 조사처리구(2kGy)의 경우 함기포장보다 진공포장시 지방산패도가 더 낮음을 확인하였다.

Keywords

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