摘要 |
PROBLEM TO BE SOLVED: To provide a method for preparing a polyamine or polyamine composition at a high yield from a highly safe plant material, because a polyamine or polyamine composition has been used in application of health, cosmetic, food and pharmaceutical, but a method enough for preparing a polyamine or polyamine composition is not established.SOLUTION: A preparation method of a polyamine composition comprises the steps: (1) subjecting a plant and/or plant extract to acid condition and (2) separating a liquid fraction. |