PROBLEM TO BE SOLVED: To solve a problem wherein there has been no method for preserving freshness right from the sea for a long period of time among conventional preservation methods of edible marine algae, and fresh edible marine algae are unobtainable in an area outside of a growing district or taking time for transportation or the like.SOLUTION: Edible marine algae fresh from the sea are frozen to provide fresh marine algae even to the area outside of the growing district and taking time for transportation, throughout the year.COPYRIGHT: (C)2013,JPO&INPIT【課題】 今までの食用の海藻類の保存法には、採れたての鮮度を、長期間保つ方法がなく産地外、又輸送等に時間の掛かる地域では、新鮮な食用海藻は手にはいらない。【解決手段】 採れたての食用海藻を冷凍し、年間を通し、産地外及び輸送時間の掛かる地域へも、新鮮な海藻を提供する事が可能になる事を特徴とする。