• 제목/요약/키워드: vacuum Co2

검색결과 805건 처리시간 0.031초

Packaging Effect on Microbial and Physicochemical Changes in Irradiated Cooked Pork Sausage during Frozen Storage at $-21^{\circ}C$

  • Cheorun Jo;Son, Jun-Ho;Kim, Jae-Hyun;Cho, Kyoung-Whan;Byun, Myung-Woo
    • Preventive Nutrition and Food Science
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    • 제6권4호
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    • pp.211-215
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    • 2001

  • The packaging effect on physicochemical changes in irradiated sausage stored at -2$0^{\circ}C$ was studied. Emulsion-type cooked pork sausage was made with (156 ppm) or without NaNO$_2$ (0 ppm), and packaged in three different conditions such as aerobic, vacuum and $CO_2$ (100%). The samples irradiated at 0, 5 and 10 kGy absorbed dose, and the total number of microorganisms, lipid oxidation, color and texture were analyzed during frozen storage at-2$0^{\circ}C$. Irradiation of the sausage at 10 kGy completely controlled microbial growth during storage. An NaNO$_2$ addition to the sausage significantly reduced lipid oxidation, and the TBARS value of the sausage with aerobic packaging was higher than that with the vacuum and $CO_2$ packaging. The NaNO$_2$ addition increased Hunter color a-value dramatically, but no packaging effect was found (p > 0.05). Irradiation influenced shear values resulting in lower shear values in 10 kGy-irradiated sausages with aerobic packaging, and $CO_2$ packaged sausage showed comparatively lower shear value than other packaging methods. From the results, vacuum or $CO_2$ (100%) packaging were better than aerobic packaging for frozen stored pork sausage, especially far microbial quality and lipid oxidation.

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