PROBLEM TO BE SOLVED: To provide a method for industrially advantageously producing a green-tea extract with reduced foreign substances such as caffein while efficiently collecting non-polymeric catechins contained in green tea leaves.SOLUTION: The method for producing the green-tea extract includes: a step A for drying raw tea leaves a step B for extracting dried tea leaves obtained in the step A with water and obtaining an extraction residue by separating the extraction liquid and a step C for extracting the extraction residue in the step B with water.COPYRIGHT: (C)2013,JPO&INPIT【課題】緑茶葉に含まれる非重合体カテキン類を収率良く回収しながら、カフェイン等の夾雑物を低減した緑茶抽出物を工業的に有利に製造する方法を提供すること。【解決手段】生茶葉を乾燥する工程Aと、工程Aで得られた乾燥茶葉を水にて抽出し、抽出液を分離して抽出残渣を得る工程Bと、工程Bの抽出残渣を水にて抽出する工程Cを含む緑茶抽出物の製造方法。【選択図】なし
