The present invention is a coffee bean extract obtained through a subcritical treatment step at a temperature of 140 to 200 ° C., a pressure of 0.15 to 1.8 MPa, and a pressure equal to or higher than a saturated vapor pressure at each temperature, When the inhibitory activity rate of angiotensin converting enzyme is 50%, the increase in blood pressure containing a coffee bean extract whose active ingredient is a solid content concentration (IC50 value) of 0.16 mg / mL or less as the coffee bean extract It relates to the agent. The present invention further relates to saccharification inhibitors and methods for producing them. ADVANTAGE OF THE INVENTION By this invention, the more active antihypertensive agent or saccharification inhibitor derived from coffee beans, the manufacturing method thereof, and the manufacturing method of the coffee bean extract which has an antihypertensive action and an antisaccharification action are provided. The本発明は、温度:140~200℃、圧力:0.15~1.8MPa、かつ、各温度の飽和蒸気圧以上の圧力による亜臨界処理工程を経て得られるコーヒー豆の抽出液であって、アンジオテンシン変換酵素の阻害活性率が50%のとき、該コーヒー豆の抽出液の固形分濃度(IC50値)が0.16mg/mL以下であるコーヒー豆の抽出液を有効成分として含有する血圧上昇抑制剤に関する。さらに本発明は糖化抑制剤及びそれらの製造方法に関する。本発明により、コーヒー豆に由来する、より活性の高い血圧上昇抑制剤又は糖化抑制剤及びそれらの製造方法、並びに血圧上昇抑制作用及び糖化抑制作用を有するコーヒー豆の抽出液の製造方法が提供される。