PROBLEM TO BE SOLVED: To produce a concentrated plant extract by concentrating a raw material plant extract such as fruit juice and wine with good productivity while maintaining a flavor component and the like, and to provide a method for adjusting a sugar content of a plant extract such as fruit juice and wine with good productivity.SOLUTION: Provided is a method for producing a concentrated plant extract by dehydrating a raw material plant extract, comprising mixing a dehydrated plant extract obtained by dehydrating a raw material plant extract by a separation membrane with a raw material plant extract. Also provided is a method for adjusting a sugar content of a plant extract, where a sugar content of a plant extract is adjusted by mixing a dehydrated plant extract obtained bb dehydrating a raw material plant extract by a separation membrane with a raw material plant extract.SELECTED DRAWING: Figure 1【課題】 旨み成分などを残しつつ、生産性よく果汁やワインなどの原料植物抽出液を濃縮した濃縮植物抽出液を製造すること。また、果汁やワインなどの植物抽出液の糖度を生産性よく調整する方法を提供すること。【解決手段】 原料植物抽出液を脱水して濃縮植物抽出液を製造する方法であって、原料植物抽出液を分離膜により脱水して得られる脱水植物抽出液と、原料植物抽出液を混合して製造する濃縮植物抽出液の製造方法。原料植物抽出液を分離膜により脱水して得られる脱水植物抽出液と、原料植物抽出液を混合することにより、植物抽出液の糖度を調整する植物抽出液の糖度調整方法。【選択図】 図１
