PROPOLIS EXTRACT AND PROCESS FOR PRODUCING THE SAME, AND PROPOLIS-EXTRACT-CONTAINING ANTIHYPERTENSION DRUG, FOOD PREPARATION AND PROPOLIS COMPOSITION

摘要

A propolis extract that exerts high blood pressure depressing effect in the therapy for hypertension, and a process for producing the same; and a propolis-extract-containing antihypertension drug, food preparations and propolis composition. The propolis extract contains organic acids in an amount of 3 wt.% or more and contains saccharides and peptides or proteins each in an amount of 5 wt.% or more. The process for producing the propolis extract comprises mixing a raw material of propolis with water at 1 to 10ºC, feeding the obtained water extract to a separation carrier or resin, such as Diaion, and performing elution with water or an aqueous alcohol of lower alcohol. The antihypertension drug and food preparations comprise the propolis extract. The propolis composition comprises the propolis extract and an ethanol extract of propolis.