Method of producing proanthocyanidin oligomer

摘要

A composition containing, as the main component, a proanthocyanidin oligomer which is obtained by heating a 5 plant material containing a proanthocyanidin polymer or its extract together with a substance having a phloroglucinol ring or resorcinol ring structure in an acidic solution, carries the substance having the fluoro/resorcinol ring structure attached thereto and has been degraded; a method 10 of producing the same; and use of the composition in health foods, drugs and so on. Thus, the proanthocyanidin oligomer having a biological activity, carrying the substance having a phloroglucinol ring or resorcinol ring structure attached to the terminus thereof and having been degraded to a level is allowing the absorption in vivo, which can be hardly obtained from a plant material at a high yield, can be efficiently and easily obtained. 3785424.1 (GHMatters) P74071.AU.1