Jandová Miroslava, Měřička Pavel, Fišerová Michaela, Landfeld Aleš, Paterová Pavla, Hobzová Lenka, Jarkovská Eva, Kacerovský Marian, Houška Milan
Tissue Bank, University Hospital Hradec Králové, 500 05 Hradec Králové, Czech Republic.
Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University, 500 03 Hradec Králové, Czech Republic.
Foods. 2021 Dec 1;10(12):2955. doi: 10.3390/foods10122955.
A systematic study, performed from 2017-2020 looked at the rate of positive post-pasteurization findings, the quantity of in pasteurized banked human milk (PBM), and the rate of toxicogenic isolates from PBM. During the study period, 6815.71 L (30,943 tested bottles) of PBM were tested, with an average amount per year of 1703.93 L (7736 tested bottles). The PBM discard rate per year due to bacterial contamination varied between 8.7-10.0% and contamination with was the most frequent reason. The total number of positive tests was 2739 and the proportion of its positivity from all positive tests was between 56.7-66.6%. The prevalence of positive tests rose significantly in the summer months. The production of enterotoxin was found in 3 of the 20 tested samples (15.0%). The CFU-quantities in the PBM were below 10 CFU/mL in 80% of cases (16 of 20 samples tested). The quantitative data can be used in the risk assessment of cold storage of PBM at temperatures above zero and manipulation of PBM prior to its administration.
一项于2017年至2020年进行的系统性研究，考察了巴氏杀菌后阳性结果的发生率、巴氏杀菌后的人乳库奶（PBM）中的含量，以及PBM中产毒分离株的发生率。在研究期间，共检测了6815.71升（30943瓶样本）的PBM，平均每年检测量为1703.93升（7736瓶样本）。每年因细菌污染导致的PBM丢弃率在8.7%至10.0%之间，其中污染是最常见的原因。阳性检测总数为2739次，其阳性率在所有阳性检测中占比为56.7%至66.6%。夏季月份阳性检测的患病率显著上升。在20个检测样本中有3个（15.0%）检测出产生肠毒素。80%的病例（20个检测样本中的16个）中PBM的CFU含量低于10 CFU/mL。这些定量数据可用于评估PBM在零上温度下冷藏以及给药前处理的风险。
