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[Investigation on Spray Drying Technology of Auricularia auricular Extract]
Objective:
To investigate the feasibility of spray drying technology of Auricularia auricular extract and its optimum process.
Methods:
On the basis of single factor test, with the yield of dry extract and the content of polysaccharide as indexes, orthogonal test method was used to optimize the spray drying technology on the inlet air temperature, injection speed and crude drug content. Using ultraviolet spectrophotometry, thin layer chromatography(TLC) and pharmacodynamics as indicators, extracts prepared by traditional alcohol precipitation drying process and spray drying process were compared.
Results:
Compared with the traditional preparation method, the extract prepared by spray drying had little differences from the polysaccharide content, TLC and the function of reducing TG and TC, and its optimum technology condition were as follows: The inlet air temperature was 180 °C, injection speed was 10 ml/min and crude drugs content was 0. 4 g/mL.
Conclusion:
Auricularia auricular extract by spray drying technology is stable and feasible with high economic benefit.
