| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: present invention pertains to the starch industry. The method involves the following. To the initial glucose-fructose syrup with 30-80% content of dry substance, isopropanol is added in quantity of 50-500% mass of syrup. The mixture is stirred at 20-60°C, cooled to 0-5°C, and settled for 24-72 hours until crystallisation. The formed crystals are separated from the liquid fraction, dried and dissolved in water until 35-85% content of dry substance. As a result, syrup is obtained from the crystalline fraction, containing 1.0-20% fructose to the mass of dry substance. The liquid fraction is boiled out until dry and the obtained crystals are dissolved in water until 35-85% content of dry substance. As a result, syrup containing 25-90% fructose to the mass of dry substance is obtained from the liquid fraction. The invention increases yield of syrup concentrated with fructose and increases relative content of fructose in it. ^ EFFECT: increased yield of syrup concentrated with fructose and increased relative content of fructose in it. ^ 2 ex |
