Determination of Mono-terpene Alchohols in Kansho Shochu

Abstract

We developed a method for the measurement of mono-terpene alcohols, whose characteristicsare strongly related to Kansho Shochu. The targeted compounds are nerol, geraniol, citronellol, linalool, and α-terpineol. Porapack Q was used as an adsorbent. Kansho Shochu was extracted and concentrated by solid phase extraction in order to determine the mono-terpene alcohols. Recovery of each compound by this method was 84-100% and was not influenced by compounds other than alcohol. The correlation coefficient of the calibration curve was 0.993 and above. Reproducibility (n=5) at relative standard deviation was 3.0% and below. The relative error was 2.3% and below when compared with standard addition method. In the present work, we discovered the existence of Vanillin in Kansho Shochu.