The invention provides a method for affinity co-extraction of a
plant whitening composition and a product and application thereof, and the method comprises the following steps: (1) mixing
phyllanthus emblica and / or roselle with an extraction
reagent, extracting, and carrying out
solid-liquid separation to obtain a filtrate 1; mixing the filter residue with an extraction
reagent, extracting, and carrying out
solid-liquid separation to obtain filtrate 2; or mixing the
phyllanthus emblica and the roselle with the extraction
reagent, extracting, carrying out
solid-liquid separation, collecting liquid and mixing to obtain filtrate 1; respectively mixing the filter residues of the emblic leafflower fruit and the roselle with an extraction reagent, extracting, carrying out solid-liquid separation, collecting liquid, and mixing to obtain filtrate 2; (2) mixing mulberry leaves with the filtrate 2, extracting, and carrying out solid-liquid separation to obtain a filtrate 3; mixing the filtrate 3 and the filtrate 1, adjusting the pH value, reacting, standing, carrying out solid-liquid separation, and collecting the precipitate; after the precipitate is dissolved in an alkaline
aqueous solution, solid-liquid separation is conducted, liquid is collected, and the
plant whitening composition is obtained and has the effects of whitening, saccharification resistance,
oxidation resistance, water supplementing and moisturizing.