The present invention addresses the problem of providing a powdery plant extract for beverages having an excellent flavor-retention effect and high solubility. To solve this problem, provided is a powdery plant extract for beverages which comprises a drinkable plant extract and a branched [alpha]-glucan mixture, said branched [alpha]-glucan mixture having properties (A) to (C), at a ratio by mass in terms of solid of 1:0.1 to 1:20: (A) containing glucose as a constituting sugar； (B) having a branched structure with a glucose polymerization degree of 1 or greater that is connected, via a bond other than an [alpha]-1,4 bond, to a non-reducing terminal glucose residue positioned at an end of a linear glucan with a glucose polymerization degree of 3 or greater connected via an [alpha]-1,4 bond； and (C) when digested by isomaltodextranase, forming isomaltose in an amount of 5 mass% or more relative to solid digestion products.本發明之課題為提供風味保持效果及溶解性優異的飲料用粉末植物萃取物。 本發明係藉由提供以按固形物換算之質量比為1：0.1～1：20的比例包含飲用植物萃取物及具有下述(A)至(C)的特性之分枝α-葡聚醣混合物之飲料用粉末植物萃取物而解決上述課題； (A)以葡萄糖作為構成糖， (B)在位於經由α-1,4鍵結連結而成之葡萄糖聚合度3以上的直鏈狀葡聚醣的一端之非還原末端葡萄糖殘基具有經由α-1,4鍵結以外之鍵結連結而成之葡萄糖聚合度1以上的分枝結構， (C)藉由異麥芽葡聚醣酶消化，而生成每消化物的固形物5質量%以上異麥芽糖。
