PROBLEM TO BE SOLVED: To provide a plant separate protein hardly generating flour, excellent in dispersibility into water and easily capable of being dissolved quickly even under a moderate agitation condition such as for dispersing a powder beverage into water by a consumer at home.SOLUTION: There is provided a powdery plant separate protein having NSI of 20 or more and less than 90, containing phytic acid partial decomposition product and phytic acid and having pH of an aqueous dispersion with 10 wt.% concentration of 5.5 to 6.9.COPYRIGHT: (C)2015,JPO&INPIT【課題】本発明の目的は、粉末飲料を消費者が家庭で水に分散させるときのような緩やかな攪拌条件であっても、ママコが生じにくく、水への分散性に優れ、容易に素早く溶解させることができる植物性分離蛋白を提供することにある。【解決手段】NSIが20以上90未満であって、フィチン酸部分分解物とフィチン酸が含まれ、10重量%濃度の水分散液のpHが5.5以上6.9以下であることを特徴とする、粉末状植物性分離蛋白。【選択図】なし