Changes of Microbial Content in White Granulated Sugar During Storage and Its Correlation with Environmental Microbial Content in Conveying and Packing Process
In order to resolve the microbial contamination of white granulated sugar,the effects of total colony counts,molds and yeasts on the contents of sugar,reducing sugar and moisture of white granulate sugar samples contaminated by microorganisms were discussed,and the changes of microbial contents of sugar samples stored under different temperatures and humidities for 150 days,and the microbial contents in water used in boiling process and the effect of the environment of sugar conveying and loading process on the microbial contents of white granulated sugar were investigated.The results showed that the sucrose content of white granulated sugar was negatively correlated with the total number of colonies,molds and yeasts,while the reducing sugar content was positively correlated;the effect of yeast on moisture content was significantly stronger than these of the total number of colonies and molds;it is better to use hot condensate for boiling sugar;and the circulating cooling system and biochemical treatment system of the sugar factory should be far away from sugar conveying and packing workshop,and should not be located in the upper windward side of the sugar conveying and packing workshop.There is also a positive correlation between the sugar microbial contents and the microbial content of sugar conveying and packing workshop,especially the sugar silo.
White granulated sugarMicroorganismsStorageConveying processPacking process
万方数据
维普
