周 天，祁 鑫*

（颇尔（中国）有限公司，上海  201210）

摘要：探讨颇尔0.1μm 过滤精度中空纤维膜和微生物除菌滤芯的过滤组合方式对3 倍浓缩的冷萃咖啡过滤、维持其生物稳定性的可行性。中空纤维膜系统在近4h 的运行时间内平均通量达到36LMH（L/m2/h）。中空纤维的新鲜滤出液再经10 英寸0.45μm 微生物精度滤芯过滤，过滤载量2500L/m2 以上；滤出液理化指标符合要求；口感相较于传统UHT 超高温灭菌工艺得到较大的提升，且除菌滤芯下游取样未发现指标微生物（包括大肠菌群、菌落总数、霉菌和酵母菌）。颇尔0.1μm 过滤精度中空纤维膜和0.45μm 微生物精度滤芯的过滤组合方式是目前可行的冷萃咖啡除菌过滤、维持其生物稳定性的解决方案之一。

关键词：冷萃咖啡；中空纤维膜；过滤；无菌

Study on Sterilization Filtration Solution of Cold Brew Coffee

ZHOU Tian，QI Xin

（Pall（China）Co.，Ltd，Shanghai 201210，China）

Abstract: The feasibility of sterilization filtration combination mode of three times concentrated cold brew coffee ofPall 0.1μm pore size hollow fiber membrane and final filter was discussed. The average flux of hollow fibermembrane system reaches 36 LMH in nearly 4 hours of running time，the filtrate passes through 10 inches 0.45μmmicrobial rate cartridge，the throughput can reach up to 2500L/m2. In the meantime，the physical and chemicalparameters of the filtrate are within specification， compared with the traditional UHT ultra- high temperaturesterilization protocol，the taste test has been greatly improved，and no microorganism was found in the downstreamsampling of the final filter（including coliform group，total number of colonies，mold and yeast）. The sterilizationfiltration combination mode of Pall 0.1μm pore size hollow fiber membrane and 0.45μm microbial rate sterilizationcartridge is a feasible aseptic filtration solution for cold brew coffee.

Key words: cold brew coffee；hollow fiber membrane；sterilization

中图分类号：TS273 文献标志码：A 文章编号：1007-7871（2022）04-0031-03