反应详情

D-tagatose is typically produced in a two-step process wherein lactose is enzymatically hydrolyzed to d-Galactose and d-glucose using immobilized lactase. The d-galactose is typically separated using a cation exchange resin. The separated d-galactose is then isomerized to produce d-tagatose under alkaline conditions (typically at a pH of 12) using calcium hydroxide to form a precipitate. The precipitate is subsequently treated with sulfuric acid to free the d-tagatose, and the filtrate is demineralized in a cation and anion exchanger. Typically, the resulting solution is concentrated and purified by chromatic fractionation using a cation exchanger. The d-tagatose is recovered by crystallization.

1. customThe d-galactose is typically separated