FIELD: sweeteners. SUBSTANCE: in the first step, particles less than 50 mcm are removed by air flow with such particle size distribution where 5% aspartame is below 20 mcm and more than 10% aspartame are larger than 40 mcm. In the second separation stage, product is screened to isolate 150- 250 mcm fraction. Further screening allows a desired fraction to be eventually isolated in which 97% of particles are larger than 20 mcm and 97% below 250 mcm. EFFECT: increased dissolution rate. 14 cl, 1 tbl
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