加糖練乳のしょ糖定量に関するレイン-エイノン法とポラリメーター法の比較

概要

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Lane-Eynon volumetric method, the Japanese official method for the determination of sucrose in sweetened condensed milk, was compared with the polarimetric method proposed by International Dairy Federation as the International Standard.<BR>The difference between the two methods was-0.49%-+0.33%, and was not considered significant. In sweetened condensed milk (two to eight months after manufacture), 0.030%-0.048% of invert sugar was found. This amount of invert sugar, however, did not interfere the determination of sucrose by either method.<BR>Because of its simplicity and rapidity, Lane-Eynon method is suitable for routine method. But the further studies are needed on the effect of calcium and the change of copper reducing power of lactose at the condition of inversion of sucrose.
公益社団法人日本食品衛生学会の論文