METHOD FOR EXTRACTING EXTRACT FROM BACTERIAL GALL OF ZIZANIA LATIFOLIA AND BATHING AGENT CONTAINING THE SAME EXTRACT

摘要

PURPOSE:To obtain the objective extract having excellent preservability and suitable for using as an active component of a bathing agent by steaming a bacterial gall of Zizania latifolia (water-oat) with steam before extraction. CONSTITUTION:Bacterial gall of water-oat is steamed at a gall temperature of 70-100 deg.C, preferably 90-95 deg.C for 30min to 1hr and, optionally after drying, extracted with water or a hydrophilic solvent (preferably lower alcohol or lower glycol, especially ethanol or butylene glycol) to obtain an extract. The extract has an oriental herb-like flavor with bitter and sweet smell comprising a herb smell mixed with rosin smell. It has excellent fragrance and thickness compared with an extract produced without using the steaming pretreatment. A bathing agent containing the extract is free from insoluble materials, has excellent body-warming effect, improves the circulation of blood, removes the waste products and exhibits a cosmetic effect.