Enhancing and stabilizing agent of the activity of Bifidus factor

摘要

The present invention relates to an agent for enhancing and stabilizing the activity of Bifidus factor, containing at least one member selected from the group consisting of ascorbic acid, hyposulfurous acid and acetic anhydride as the effective ingredient, and by preparing the agent singly or in combination with Bifidus factor as a food and drink type or as a composition of pharmaceutical type, intestinal microflora can be ameliorated. The agent can be used as a selective medium for assaying the number of bifidobacteria.