タカハシ　シンペイ   TAKAHASHI SHINPEI   髙橋　慎平    所属   朝日大学  歯学部 口腔機能修復学講座 口腔生理学    職種   助教
発表年月日	2026/03/11
発表テーマ	Preference for calcium ascorbate in rats
会議名	The 103rd Annual Meeting of The Physiological Society of Japan
学会区分	全国学会
発表形式	ポスター
単独共同区分	共同
開催地名	東京都新宿区
開催期間	2026/03/10～2026/03/12
発表者・共同発表者	Ayaka Hida, Toshiaki Yasuo, Shinpei Takahashi, Shusuke Iwata, Takeshi Suwabe, Satoshi Kawano, Noritaka Sako
概要	Calcium ascorbate (AsA-Ca), a calcium salt of vitamin C, has been approved as a food additive in Japan, but its preference remains unclear. We evaluated preference for AsA-Ca in Wistar rats using a 48-h two-bottle test and compared it with CaCl₂ (0.01–100 mM). At ≥30 mM, preference scores for AsA-Ca (45.7% at 30 mM; 8.0% at 100 mM) were significantly higher than those for CaCl₂ (29.5%; 3.6%). Compared with previously reported values for AsA, AsA-Ca showed higher preference. These results indicate that AsA-Ca is more preferred than CaCl₂ and possibly AsA. The higher preference may be related to pH differences, but the mechanism remains unclear. Further studies are needed to examine the role of taste perception.