PURPOSE: A broccoli sprout product preserved in bag capable of preserving freshness for a long period, obtained by sealing up broccoli sprouts and a specific adsorbent hermetically within a bag of polyolefin polymer.

CONSTITUTION: An adsorbent (slaked lime may be additionally used) obtained by adding about 40W60wt% active carbon of coconut shell flour having high activity (specific surface area: about 1,500W1,700m2/g, particle size: passing through about 100 mesh) to a sheet of polyether or polyester urethane foam is used. Namely, broccoli sprouts and the adsorbent are sealed up hermetically in a package bag of a film (thickness: 15W50μ) of a polymer selected from polyethylene, polypropylene, polybutadiene, and ethylene-vinyl acetate copolymer.