Neumeyer K, Ross T, McMeekin T A
Department of Agricultural Science, University of Tasmania, Hobart, Australia.
Int J Food Microbiol. 1997 Aug 19;38(1):45-54. doi: 10.1016/s0168-1605(97)00089-5.
A combined temperature and water activity model for the growth of psychrotrophic pseudomonads was developed using turbidimetric data. Psychrotrophic pseudomonads were isolated from various modified and whole milks. The fastest growing strain was identified and used to develop the model. Generation time estimates calculated by turbidimetric and viable count data differed but this difference was constant with respect to temperature and was incorporated into the modelling process so that all models are constructed to predict generation times equivalent to those calculated by viable counts, the standard method for enumerating microorganisms in food products.
利用比浊法数据建立了嗜冷假单胞菌生长的温度和水分活度联合模型。从各种改性奶和全脂奶中分离出嗜冷假单胞菌。鉴定出生长最快的菌株并用于建立模型。通过比浊法和活菌计数数据计算出的代时估计值有所不同，但这种差异在温度方面是恒定的，并被纳入建模过程，以便构建所有模型来预测与活菌计数（食品中微生物计数的标准方法）计算出的代时相当的代时。
