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KMID : 0380619910230010037
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Korean Journal of Food Science and Technology
1991 Volume.23 No. 1 p.37 ~ p.43
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Effect of Monosodium Glutamate on the Taste Response of Chorda Tympani Nerve of Cat
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Abstract
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The nerve impulse pattern of Chorda tympani(CT) of cat was tested with Monosodium glutamate (MSG) solutions as well as some basic taste substances applied on the tongue of cat. The effect of MSG applied in the tongue prior to the stimulation of other taste substances was also investigated. The response impulse frequency of CT of cat was changed by the kind and concentration of taste substances. The response to citric acid was the highest among the tested substances, NaCl, KCl and MSG showed similar responses. When different concentrations of MSG were applied on the tongue prior to other substances, the response to NaCl increased with the maximum response at the MSG concentration of 0.02 M. The response to sucrose tended to be reduced, but the response to citric acid was distinctly supressed by the previous MSG stimulation. These results were well consistent with the sensory evaluation on the effect of MSG to some basic taste substances, previously reported by the authors.
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