Objective To optimize the detection method and explore the detection method with stable strength data and small relative standard deviation of Curdlan.Method Using Curdlan as the material,compare the glue making methods,optimize the sampling amount,heating temperature,ice water bath cooling time,and parallel measurement times based on single factor experiments,and analyze the optimal combination of each factor condition through orthogonal experiments.Result The determined detection method is to take a sample of 0.30-0.31 g,add 15 mL of freshly prepared degassed water,stir with a trace sampling spoon to evenly disperse the suspension,heat in a boiling water bath and maintain its uniformity,heat in a water bath for 10 minutes,then remove and cool in an ice water bath for 50 minutes,and conduct three parallel experiments.Conclusion This method has a small relative standard deviation and stable data.The column heads with diameters of 0.4 cm,0.5 cm and 0.6 cm for products with gel strength greater than 600 g·cm-2 can be used for determination.
curdlangel strengthorthogonal experimentrelative standard deviation
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