Effect of flexible bionic automatic spread-cooling machine on the properties of multi-grain strong-flavor Baijiu Zaopei
Taking strong-flavor(Nongxiangxing)Baijiu Zaopei as the research object,by testing and analyzing data such as the pit-loading temperature,physicochemical properties(moisture,acidity,starch content,hardness,viscosity,etc.),sensory evaluation,and uniformity of the Zaopei by flexible bionic automatic spread-cooling machine and manually spread-cooling,the effect of the application of automatic spread-cooling machine on the prop-erties of Zaopei was demonstrated.The results showed that the temperature of the Zaopei by the automatic spread-cooling machine was 25-26 ℃,which was about 2 ℃ higher than that of the manually spread-cooling Zaopei.The fermentation power of the Zaopei processed by the automatic spread-cooling machine was 200-260 mg/(g·h),which was lower than the fermentation power of the mash processed by manual spread-cooling(250-400 mg/(g·h).The moisture content and saccharification capacity of the pit-loading Zaopei treated with two different spreading methods were basically the same,with a moisture of about 57％and saccharification power of 13-16 ml/(g·72 h).In addition,the temperature,moisture,saccharification power,and fermentation power distribution uniformity of the two types of spreading methods were basically consistent.The study demonstrated the possibility of the application of automatic spread-cooling machine in strong-flavor(Nongxiangxing)Baijiu,and provided a reference for mechanized and automatic spread-cooling of Baijiu production.
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