Application of information entropy theory in optimization of extraction technology for Lonicerae Flos and Gardeniae Fructus in Reduning Oral Preparation / 中草药

ABSTRACT

To optimize the extraction technology for Lonicerae Flos and Gardeniae Fructus in Reduning Oral Preparation by information entropy theory. With the contents of chlorogenic acid, gardenoside, luteoloside, and the yield of extract as comprehensive evaluation indexes, the extraction time, dosage of water, and extraction times were selected as factors, the weight of them was determined by information entropy theory, and the extraction technology was optimized by orthogonal test. Optimum extraction technology was: Reflux extraction for 3 times with 12 folds water, 1 h each time. The information entropy theory could be used in optimizing the extraction technology for Reduning Oral Preparation.