METHOD FOR EXTRACTING LECTIN-CONTAINING EXTRACT FROM JAPANESE QUINCE, EXTRACT PREPARED THEREBY, ANTITUMOR MEDICINAL COMPOSITION CONTAINING THE EXTRACT, AND CELL SURFACE GLYCOPHORIN A DETECTION PREPARATION AND BLOOD GROUP TEST KIT USING THE EXTRACT

摘要

PROBLEM TO BE SOLVED: To provide a Japanese quince (Chaenomeles lagenaria) extract and to provide a method for extracting the same.

SOLUTION: The lectin-containing extract is prepared by forming a mixture from Japanese quince seeds and a homogenizing agent and further treating the mixture and has specificity for cell surface glycophorin A. This extract is effectively used to control tumor growth and is useful also in a blood group test.

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