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首页> 外文期刊>Applied Microbiology >Resistance of Spores of Bacillus subtilis var. niger on Kapton and Teflon Film to High Temperature and Dry Heat
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Resistance of Spores of Bacillus subtilis var. niger on Kapton and Teflon Film to High Temperature and Dry Heat

机译：枯草芽孢杆菌变种的孢子抗性在高温和干热条件下将尼日尔在Kapton和Teflon薄膜上

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摘要

To determine parameters that would assure sterility of a sealed seam of film for application in “split-seam entry,” spores of Bacillus subtilis var. niger were sprayed onto pieces of Kapton and Teflon film. Short-time, high-temperature (200 to 270 C) exposures were made with film pieces between aluminum blocks in a hot-air oven, and the D and z values were determined after subculture of surviving spores. The use of Kapton film allowed the study of high temperatures, since it is not heat sealable and could be used to make thin packages for heat treatment. Spores on Teflon were dry-heat treated in a package designed to simulate an actual seam to be sealed. The z values of 29.1 C (52.4 F) for spores on Kapton and 139 C (250.4 F) for spores on Teflon were calculated.
机译：为了确定能够确保用于“裂缝进入”的薄膜密封接缝无菌性的参数，枯草芽孢杆菌变种。将尼日尔喷雾到Kapton和Teflon薄膜上。在热风烤箱中用铝块之间的薄膜片进行短时高温（200至270 C）曝光，并在继代培养存活的孢子后确定D和z值。 Kapton薄膜的使用允许研究高温，因为它不具有热封性，可用于制造用于热处理的薄包装。铁氟龙上的孢子在包装中进行了干热处理，该包装设计为模拟要密封的实际接缝。计算得出Kapton上的孢子的z值为29.1 C（52.4 F），特氟隆上的孢子的z值为139 C（250.4 F）。

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