Effects of Different Fixation Drying Treatments on the Quality of Lanzhou Lily
Based on the appearance and main quality indexes of Lanzhou lily after different fixation drying treatments,the suitable fixation methods were studied:it extracted after fixing by boiling water of 110℃and 120℃respectively,the samples were dried at 60℃,and cold soaked.The content of lilioside A was determined by HPLC,the content of lilioside polysaccharide and total flavonoids were determined by ultraviolet spectrophotometry,and the comprehensive evaluation was carried out by TOPSIS analysis.The results showed that the appearance quality score of Lanzhou lily treated with 120℃for 2 min was the highest(92.77 points).The contents of extract and lily polysaccharide fixed by 110℃for two min were the highest,which were 66.97%and 21.13%respectively.The content of lilioside A fixed by 120℃for two min and the content of total flavonoids fixed by 120℃for four min were 1.39 times and 1.99 times higher than those directly drying treatment in 60℃.The drying rate,extract,lily polysaccharide,lilioside A and total flavonoids in fixation treatment were higher than those in direct drying treatment.The results of TOPSIS comprehensive evaluation showed that drying at 60℃after fixed by 120℃for two min was the best.Conclusion:Different fixation treatments have significant effects on the appearance and internal quality of Lanzhou lily,drying at 60℃after fixed by 120℃for two min can be used for the recommended drying method in Lanzhou lily actual production and processing.
Lanzhou lilymethod of fixationappearance qualityinternal qualitycomprehensive evaluation
NETL
NSTL
万方数据
