Optimization of vacuum belt drying process for Lonicerae Japonicae Flos extract by response surface test
Objective To optimize of vacuum belt drying process for Lonicerae Japonicae Flos extract.Methods Single factor test combined with response surface tests were used.Four influencing factors as relative density of extract,two-stage heating temperature,track speed,and distribution speed were confirmed,and the comprehensive score of moisture content and chlorogenic acid transfer rate was used as the evaluation index to optimize of vacuum belt drying process.Results The optimized process parameters were as following:the two-stage heating temperature was 90℃,the relative extract density was 1.27,the track speed was 110 mm/min,and the distribution speed was 1.6 L/h.Conclusion The obtained process has short time consumption,high efficiency,stable process,and strong operability,providing a reference for the industrial production of Lonicerae Japonicae Flos.
Lonicerae Japonicae Flos extractvacuum belt drying processmoisture contentchlorogenic acid transfer rateresponse surface test
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