Orthogonal experiment of extraction of scutellarin acid with microwave or Soxhlet's extractor
AIM: To study the optimal process of the extraction of scutellarin with microwave or Soxhlet's extractor. METHODS: The extraction of scutellarin with microwave or Soxhlet's extractor was compared on the basis of the yield of extracts (rude scutellarin). Orthogonal experiment was conducted to investigate 3 influential factors: granularity of scutellarin, amount of extractant and extraction time. RESULTS: The optimal conditions for the extraction with Soxhlet's extractor were A2B2C2D2, while those of microwave were A2B2C1D1. The extracting effect of microwave for 8 min was equal to that of Soxhlet's extraction for 2 h but the extracting rate was 10 - 15 times that of Soxhlet's extraction. CONCLUSION: The microwave extraction takes shorter time, less energy and lower operation temperature. The microwave extraction is an efficient method to extract Chinese medicine.
NETL
NSTL
万方数据
维普
