Water restriction and fluid temperature alter preference for water and sucrose solutions.
Water restriction and fluid temperature alter preference for water and sucrose solutions.
复制标题
水分限制和液体温度会改变对水和蔗糖溶液的偏好。
DOI：
10.1093/chemse/bjr106
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发表时间：
2012
期刊：
影响因子：
3.5
通讯作者：
Contreras,RobertJ
中科院分区：
文献类型：
--
作者：
Torregrossa,Ann-Marie;Bales,MichelleB;Breza,JosephM;Houpt,ThomasA;Smith,JamesC;Contreras,RobertJ
饮食温度在摄食行为中的作用还知之甚少。我们研究了刺激温度和限水状态对水和蔗糖的偏好和摄入量的重要性。使用定制设计的设备，使我们能够在测试期间监控和保持溶液温度(±0.1°C)，我们进行了一系列两瓶偏好测试(10°C水对10-40°C蔗糖)和简短访问测试(10-40°C水和蔗糖)。当蔗糖浓度为30℃或40°C时，限水大鼠比任何蔗糖浓度(0.0-1.0M)的大鼠更喜欢冷水，而当不受限制时，相同的大鼠在所有浓度和温度下都更喜欢蔗糖，这表明限水状态与温度偏好相互作用。在使用戴维斯试验机(MS-180)的一系列简短测试中，与20°C的蔗糖相比，老鼠减少了对冷蔗糖的舔食，这表明与水不同，寒冷的温度降低了蔗糖的适口性。
The role of diet temperature in ingestive behavior is poorly understood. We examined the importance of stimulus temperature and water-restriction state on the preference for and intake of water and sucrose. Using custom-designed equipment that allows us to monitor and maintain solution temperatures during testing (±0.1 °C), we conducted a series of 2-bottle preference tests (10 °C water vs. sucrose 10–40 °C) and brief access tests (10–40 °C water and sucrose). Water-restricted rats preferred cold water over any sucrose concentration (0.0–1.0 M) if the sucrose was 30 or 40 °C, whereas the same rats preferred sucrose at all concentrations and temperatures when unrestricted suggesting that the water-restriction state interacts with temperature preference. In a series of brief-access tests using a Davis Rig (MS-180), rats reduced licking to cold sucrose compared with 20 °C sucrose, suggesting that unlike water, cold temperature reduced the palatability of sucrose.