PROBLEM TO BE SOLVED: To provide a nucleic acid material for a drink or liquid food product which aims at ingestion of nucleic acid, contains DNA at a high concentration, has a low viscosity even when dissolving DNA at a high concentration in water, and contains 60-95% fraction with a molecular weight of DNA of 1,000-30,000 Da, and to provide a method for producing the nucleic acid material.SOLUTION: A decomposed preparation product which contains 60-95% fraction with a molecular weight of DNA of 1,000-30,000 Da, and has a DNA content of the nucleic acid material of 80% (w/v) or more is obtained by hydrolyzing DNA by endo nuclease.COPYRIGHT: (C)2009,JPO&INPIT【課題】核酸の摂取を目的とした飲料又は液状食品において、DNAを高濃度で含有し、DNAを高濃度で水に溶解させた場合にも低粘度であり、且つDNAの分子量が1000~30000Daである画分を60~95%含有する核酸素材、及びその製造方法を提供すること。【解決手段】エンド型ヌクレアーゼでDNAを加水分解して、DNAの分子量が1000~30000Daである画分を60~95%含有し、該核酸素材のDNAの含有率が80%(w/v)以上である分解調製物を得る。【選択図】なし
