The invention discloses low-
sugar candied radix asparagi and a preparation method thereof. The preparation method comprises the following steps that fresh radix asparagi is taken as a
raw material, and cleaning, enzymolysis, freezing,
blanching, hardening, color protection, vacuum
sugar permeability,
vacuum drying and the like are carried out; enzymolysis is carried out on radix asparagi peel by using a small amount of compound
enzyme preparation, through short-time freezing treatment, the radix asparagi is taken out for short-time boiling water
blanching or steam treatment, then the radix asparagi is taken out, quickly cooled, peeled, hardened and subjected to protecting color,
sugar liquid is prepared for vacuum sugar permeability, vacuumizing is carried out first,
sucrose proportioningliquid with the concentration of less than or equal to 40% is injected, treating is carried out for 30 minutes at the vacuum degree of 0.07-0.095 MPa and the temperature of 80-90 DEG C, and soaking iscarried out for 4-6h at normal pressure and temperature; and in order to improve the
permeation and filling effects of the sugar liquid, a composite filling agent is added, then
drying is carried out, so that the low-sugar candied radix asparagi with the sugar content of 36%-40% is finally prepared, the high-sugar characteristic of the original traditional candied radix asparagi is improved, thecolor is smooth, the
mouthfeel quality is good, and the character, unique
flavor and nutritional ingredients of original radix asparagi are preserved to the maximum extent.