The application discloses a method for liquid milk sterilization, which relates to the field of liquid milk sterilization. A method for liquid milk sterilization is described in the following steps: the preheated liquid milk enters the sterilization device; the superheated steam is injected and fully mixed with the liquid milk, the latent heat is released by phase transformation, and the temperature of the liquid milk is raised to the sterilization temperature; the liquid milk enters the heat preservation tube for a predetermined time; the liquid milk enters the flash tank for rapid cooling. Compared with its latent heat of phase change, the enthalpy value of steam differs by two orders of magnitude. In this application, the absolute temperature of superheated steam is higher than that of saturated steam, but superheated steam can fully mix the steam with the material. In the process of mixing, a small part of heat will be released, and no additional protein will be lost. After the mixture is evenly reduced to the temperature of saturated steam, huge latent heat will be released to make the liquid The body milk is evenly heated to reduce protein damage, more thorough sterilization, no local overheating, and the material will not be burned.
【技术实现步骤摘要】
用于液体奶杀菌的方法
本申请涉及液体奶的制备工艺,特别是涉及一种用于液体奶杀菌的方法。
技术介绍
现有液体奶的杀菌方法有采用间接式杀菌、直接蒸汽喷射式杀菌(亦称为DSI杀菌)等。以直接蒸汽喷射式杀菌为例加以说明,采取的饱和式蒸汽进行杀菌,其最大的缺点是会瞬间释放巨大相变潜热,使物料受热不均,局部过热,产生乳清蛋白变性,变性量达35%。因此,提出一种能够使蒸汽与物料充分混合,避免物料受热不均,局部过热导致蛋白质流失的液体奶杀菌的方法。
技术实现思路
本申请的目的在于克服上述问题。本申请是提供了一种用于液体奶杀菌的方法,按照下述步骤操作:经过预热的液体奶进入杀菌装置;过热蒸汽注入,与液体奶充分混合,将液体奶温度升至杀菌温度;液体奶进入保温管,持续预定时间;液体奶进入闪蒸罐快速冷却。可选地,所述预热温度为70℃~72℃。可选地,所述过热蒸汽为120℃-135℃蒸汽。可选地,所述杀菌温度为85℃~94℃或95℃-120℃(超高温杀菌)。该杀菌温度也应用于过热蒸汽杀菌,针对不同的物料及杀菌要求,过热蒸汽的温度及杀菌温度也不相同。可选地,所述预定时间约为30s-45s。可选地,杀菌能力为500公斤/时-1万公斤/时。本申请是用于液体奶杀菌的方法,过热蒸汽先与液体奶充分混合,再释放出巨大潜热,将物料加热至杀菌温度。采用过热蒸汽的绝对温度虽较饱和蒸汽温度高,但因蒸汽焓值和它的相变潜热相比,相差两个数量级,在混合的过程中 ...
【技术保护点】
1.一种用于液体奶杀菌的方法,其特征在于,按照下述步骤操作:/n经过预热的液体奶进入杀菌装置;/n过热蒸汽注入,与液体奶充分混合,相变释放潜热,将液体奶温度升至杀菌温度;/n液体奶进入保温管,持续预定时间;/n液体奶进入闪蒸罐快速冷却。/n
【技术特征摘要】
1.一种用于液体奶杀菌的方法,其特征在于,按照下述步骤操作:
经过预热的液体奶进入杀菌装置;
过热蒸汽注入,与液体奶充分混合,相变释放潜热,将液体奶温度升至杀菌温度;
液体奶进入保温管,持续预定时间;
液体奶进入闪蒸罐快速冷却。
2.根据权利要求1所述的方法,其特征在于,所述预热温度为70℃~72℃。
3.根据权利要求1所...
【专利技术属性】
技术研发人员:王昕,杨文娟,
申请(专利权)人:秦皇岛燕大源达机电科技股份有限公司,
类型:发明
国别省市:河北;13
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