The present invention falls within the technical field of
iron supplement preparation, and relates more particularly to a process for preparing and applying a supplement based on a
polysaccharide-
iron complex derived from
Auricularia auricula-judae, intended to supplement iron, improve
iron deficiency anemia and strengthen
immunity, comprising the following steps: preparation of raw materials, selection of iron-rich
Auricularia auricula-judae as
raw material; culture and optimization,
engineering modification of fermented and cultured
Auricularia auricula-judae; screening and selection of
Auricularia auricula-judae strains with a high
iron content;The beneficial effects are as follows: by constructing
gene expression vectors, transforming fungal cells, and screening and identifying transformants with high synthetic capacity, the level of expression of genes related to the generation and conversion of the iron element is increased, allowing the cultivation of
Auricularia auricula-judae varieties containing higher levels of iron, in order to improve the yield and production efficiency of the
polysaccharide-
iron complex.