Patent ID: 7416745

Claim:
A method for enhancing antigenicity of a vaccine when administered to a man or animal, comprising the step of administering to a man or animal a vaccine adjuvant before, concurrently with, or after administration of the vaccine, wherein the vaccine adjuvant comprises a sugar cane-derived extract as an active ingredient; the sugar cane-derived extract contains a lower saccharide concentration than a sugar cane raw material selected from the group consisting of sugar cane juice, a liquid extract from sugar cane, and sugar cane-derived molasses; the sugar cane extract is present in said vaccine adjuvant in an amount effective to enhance antigenicity of said vaccine; and the sugar cane-derived extract is a fraction which absorbs light of a wavelength of 420 nm and is obtained by column chromatographic treatment utilizing differences in affinity to a fixed carrier which is an ion exchange resin packed in a column.