| 摘要 |
PROBLEM TO BE SOLVED: To obtain a water-insoluble conjugated protein not readily liberating antimicrobial/antifungal silver from a protein, yet having a high silver content and an antimicrobial/antifungal agent and an antimicrobial/antifungal paper using the conjugated protein. SOLUTION: A protein having 0.1-200μmol/g active thiol group content is not particularly restricted as a water-soluble protein having 0.1-200μmol/g active thiol group content as long as the protein has the content of an active thiol group in the range. To be concrete, a whey protein, a whey protein hydrolyzate, a water solubilized substance of whey protein, an egg shell membrane protein hydrolyzate and a water solubilized substance of egg shell membrane protein may be cited as the protein and can be preferably used. Since the water-soluble protein retains emulsifiability being one of characteristics of the original protein, an antimicrobial/antifungal agent prepared from the water-soluble protein as a raw material is expected to have excellent stickiness to an object.
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