This invention per rutin and 1g dry weight includes the saccharide of 100mg at least, the asparagus (As-paragus) the dry powder of pseudo leaf organization of the being attached plant, the especially asparagus (Asparagus) microwave decompression drying, far infrared rays decompression drying or the vacuum (freezing) drying the pseudo leaf organization of the being attached plant, it offers the dry powder which is the powder which can. This powder is available as the material for the eating and drinking item which grants acceptability and the rutin replenishment talent which catch as the eating and drinking item which is superior in the acceptability which displays the fragrance and moderate sweet taste of the faint asparagus, or.本発明は、ルチン及び1g乾燥重量あたり少なくとも100mgの糖類を含む、アスパラガス(As-paragus)属植物の擬葉組織の乾燥粉末、特にアスパラガス(Asparagus)属植物の擬葉組織をマイクロ波減圧乾燥、遠赤外線減圧乾燥または真空(凍結)乾燥して得られる粉末である乾燥粉末を提供する。この粉末は淡いアスパラガスの香りと適度の甘味を呈する嗜好性に優れた飲食品として、あるいはかかる嗜好性とルチン補給能を付与する飲食品用素材として、利用可能である。