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    • 82. 发明授权
    • Method for estimating survival cell count, and method for setting guaranteed cell count
    • 估计存活细胞计数的方法,以及设定保证细胞计数的方法
    • US08700373B2
    • 2014-04-15
    • US12995064
    • 2009-05-29
    • Fumiaki AbeAyako UchijimaAyako Horigome
    • Fumiaki AbeAyako UchijimaAyako Horigome
    • G06G7/58G06F19/00
    • G06F19/00C12Q1/06
    • The present invention provides a method for estimating survival cell count, which is able to calculate an accurately estimated result of the survival cell count of a specific strain in a probiotic product with respect to its storage period, and to shorten the time for developing the product, and a method for setting a guaranteed cell count, which is able to readily calculate a guaranteed cell count of a specific strain in a probiotic product within its quality guarantee period. The method for estimating the survival cell count is characterized by estimating the survival cell count nt (CFU/g) of a specific strain contained in a composition after storage, in accordance with the following equation (I). (I) Log10 nt=Log10 n0−t×EXP{(AT×T+BT)w+(CT×T+DT)}, provided that t stands for the storage period (days)×1/30, nt stands for the survival cell count (CFU/g) of the strain contained in the composition after the storage period t (days), n0 stands for the viable cell count (CFU/g) of the strain contained in the composition at the initiation of storage, T stands for the storage temperature (° C.), w stands for the water activity value of the composition, AT and CT stand for experimentally determined coefficients specific to the strain, and BT and DT stand for experimentally determined constants specific to the strain.
    • 本发明提供一种用于估计存活细胞计数的方法,其能够计算益生菌产品相对于其储存期的特定菌株的存活细胞计数的准确估计结果,并缩短开发产品的时间 以及用于设定保证细胞计数的方法,其能够容易地计算其质量保证期内益生菌产品中特定菌株的保证细胞计数。 用于估计存活细胞计数的方法的特征在于根据以下等式(I)估计储存后组合物中包含的特定菌株的存活细胞计数nt(CFU / g)。 (I)Log10 nt = Log10 n0-t×EXP {(AT×T + BT)w +(CT×T + DT)},条件是t代表保存期(天)×1/30,nt表示 储存期t(天)后组合物中所含菌株的存活细胞计数(CFU / g),n0表示储存开始时组合物中包含的菌株的活菌数(CFU / g),T 代表储存温度(℃),w代表组合物的水活度值,AT和CT代表实验确定的菌株特异性系数,BT和DT代表对菌株特异性的实验测定常数。
    • 84. 发明申请
    • ANTIMICROBIAL ACTIVITY ENHANCING AGENT
    • 抗菌活性增强剂
    • US20130129707A1
    • 2013-05-23
    • US13813240
    • 2011-07-29
    • Mai MurataHiroyuki WakabayashiKoji Yamauchi
    • Mai MurataHiroyuki WakabayashiKoji Yamauchi
    • A01N63/02
    • A01N63/02A23K10/14A23K20/147A23K50/10A23K50/40A23K50/80A23L2/66A23L3/3526A23L33/19A23V2002/00A61K35/20A23V2200/10A23V2250/54248A23V2300/02A23V2300/30
    • An antimicrobial activity enhancing agent for lactoferrin or a lactoferrin hydrolysate, which contains a milk protein as an active ingredient and has the following properties, and a method for producing the antimicrobial activity enhancing agent, which comprises (a) the step of contacting raw milk with a cation exchange resin to adsorb proteins in the raw milk to the cation exchange resin, (b) the step of washing the cation exchange resin having undergone the adsorption treatment, and flowing an elution solvent to elute a protein fraction having an isoelectric point of 9.0 to 11.0, and (c) the step of subjecting the eluted protein fraction to membrane filtration using an ultrafiltration membrane having a molecular weight cutoff of 30 kDa to prepare the milk protein having the following properties:(A) an action of enhancing the antimicrobial activity of lactoferrin or a lactoferrin hydrolysate, (B) a molecular weight of 30 kDa or less, (C) an isoelectric point of 9.0 to 11.0.
    • 一种含有乳蛋白作为活性成分并具有以下性质的乳铁蛋白或乳铁蛋白水解产物的抗微生物活性增强剂及其制备方法,其包括:(a)将生牛奶与 阳离子交换树脂,用于将原料乳中的蛋白质吸附到阳离子交换树脂中,(b)洗涤经过吸附处理的阳离子交换树脂,并使洗脱溶剂流动,洗脱等电点为9.0的蛋白质级分 至11.0,和(c)使用分子量截留值为30kDa的超滤膜对洗脱的蛋白质级分进行膜过滤的步骤,以制备具有以下性质的乳蛋白:(A)增强抗微生物活性的作用 的乳铁蛋白或乳铁蛋白水解物,(B)分子量为30kDa以下,(C)等电点为9.0〜11.0。