基于HHP的烟用香精料液杀菌工艺研究
Research on the sterilization technology of tobacco flavor liquid based on HHP
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摘要: 针对烟用香精料液防腐用化学防腐剂存在安全隐患的问题，将物理场高静压（HHP）技术应用于烟用香精料液的防腐杀菌，考察了HHP工艺参数对烟用香精料液杀菌效果的影响，以及杀菌处理后烟用香精料液施加于卷烟的感官品质.结果表明：在处理温度38℃，保压时间13.1 min，处理压力447 MPa工艺条件下，经HHP处理前后，烟用香精料液的色泽、黏度无明显变化；产气微生物的生长得到较好的控制，烟用香精料液的产气量明显降低，保质期增长；将杀菌处理后的香精料液添加到卷烟叶组中与原料液进行感官评吸对比，二者不存在感官上的明显差异.因此，在不改变烟用香精料液感官品质的前提下，HHP将有望作为一种低温、安全的杀菌技术应用于烟用香精料液的杀菌防腐.Abstract: Considering the potential safety hazard of chemical preservatives for cigarette flavoring liquid, the high hydrostatic pressure (HHP) technology was applied to the sterilization of tobacco flavor liquid. The effects of technological parameters of HHP on the sterilization efficacy of tobacco flavor liquor and the sensory quality of cigarettes following tobacco flavoring liquid application after sterilization were investigated. The results showed that when the treatment temperature was 38℃, the holding time was 13.1 min, and the treatment pressure was 447 MPa, the color and viscosity of tobacco flavor liquor had no obvious change when compared with that before HHP treatment. The growth of gas producing microorganism was well controlled, and the biogas production of tobacco flavoring liquid obviously reduced with the increase in shelf life. When the tobacco flavoring liquid after sterilization treatment was added into the cigarettes, there was no significant difference in sensory evaluation when compared with the raw material liquid.Therefore, under the premise of not changing the sensory quality of the tobacco flavor liquid, HHP is expected to be used as a low-temperature, safe sterilization technology for the sterilization and antiseptic of the tobacco flavor liquid.
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