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    • 4. 发明授权
    • Method for surface culture of microorganisms and cells in flexible culture bags
    • 柔性培养袋中微生物和细胞表面培养的方法
    • US06461853B1
    • 2002-10-08
    • US09858451
    • 2001-05-17
    • Hong Zhu
    • Hong Zhu
    • C12N100
    • C12M23/14C12M23/46C12M23/48C12N1/00
    • A method of using flexible bags for surface culture of microorganisms and cells on a stationary interface between a gaseous phase and a liquid medium and the devices upon which the method are practiced are disclosed. A flexible culture bag is first filled with a liquid growth medium, a sample inoculum, and a predetermined amount of air to create a headspace. The bag is then sealed and placed on a stationary platform, and mounted with an external self-support device on the top web of the bag. The external support device holds the top web of the bag in a fixed position and, thus, prevents the bag from deflating so that a stationary interface between the headspace and the liquid medium in the bag is maintained throughout the cultivation period.
    • 公开了一种在气相和液体介质之间的固定界面上使用柔性袋用于表面培养微生物和细胞的方法以及实施该方法的装置。 首先将柔性培养袋填充液体生长培养基,样品接种物和预定量的空气以产生顶部空间。 然后将袋密封并放置在固定的平台上,并在袋的顶部网上安装有外部自支撑装置。 外部支撑装置将袋的顶部网保持在固定位置,并且因此防止袋放气,使得整个培养期间保持袋中的顶部空间和液体介质之间的固定界面。
    • 8. 发明授权
    • Spores with increased sensitivity to sterilants using additives that bind to sterilant-sensitive sites
    • 使用与杀菌剂敏感部位结合的添加剂对灭菌剂敏感性更高的孢子
    • US06187555B1
    • 2001-02-13
    • US09061293
    • 1998-04-16
    • Kestutis J. Tautvydas
    • Kestutis J. Tautvydas
    • C12N100
    • A61L2/07A61L2/14A61L2/206A61L2/28C12N1/04Y10S435/822Y10S435/832Y10S435/839
    • Microbial spores having increased sensitivity to sterilants are provided. An additive such as a dipeptide, oligosaccharide, and/or polyhydroxyalcohols are added to the spores wherein the additive is bound to sterilant-sensitive sites in the spores. The additive increases sensitivity of the spores to a sterilant. More than one additive can be utilized to alter the sensitivity of the spores to a sterilant. Biological indicators comprising the microbial spores and a solid support are also disclosed and those spores having a dipeptide specifically bound to sterilant-sensitive sites in the spores have an altered sensitivity to a sterilant. Furthermore, a method is disclosed for altering the sensitivity of microbial spores to a sterilant comprising drying the spores at a temperature between 35° C. and 55° C. in a liquid composition having an amount of the additive therein.
    • 提供了对灭菌剂敏感性增加的微生物孢子。 将添加剂如二肽,寡糖和/或多羟基醇添加到孢子中,其中添加剂与孢子中的杀菌剂敏感位点结合。 添加剂增加了孢子对杀菌剂的敏感性。 可以使用多于一种的添加剂来改变孢子对杀菌剂的敏感性。 还公开了包含微生物孢子和固体支持物的生物指示剂,并且具有与孢子中灭菌剂敏感位点特异性结合的二肽的那些孢子具有改变的对消毒剂的敏感性。 此外,公开了一种用于改变微生物孢子对灭菌剂的敏感性的方法,包括在具有一定量添加剂的液体组合物中,在35℃和55℃之间的温度下干燥孢子。