Food Science and Technology International, Tokyo
Online ISSN : 1881-3976
Print ISSN : 1341-7592
ISSN-L : 1341-7592
Original papers
Adsorption of Dipeptides on Activated Carbon
Shuji ADACHITomohiko YAMANAKARyuichi MATSUNO
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1998 年 4 巻 4 号 p. 269-273

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The adsorption isotherms of some dipeptides composed of un-ionizable side chains were measured at 25°C in a single component system, and all of them obeyed the Langmuir equation. The parameters obtained at pH 7 could be roughly correlated with the hydrophobic and steric parameters of constituent amino acids. To find a method for predicting the amount of dipeptide adsorbed under various conditions, the applicability of the Polanyi adsorption potential theory was examined. The amount of dipeptide adsorbed could be roughly estimated from the adsorption isotherms of the amino acids, although the estimation lacked strictness in a physical sense.

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© 1998 by the Japanese Society for Food Science and Technology
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