ヤスオ　トシアキ   YASUO TOSHIAKI   安尾　敏明    所属   朝日大学  歯学部 口腔機能修復学講座 口腔生理学    朝日大学  大学院 歯学研究科    職種   准教授
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
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.