Problem to be solved: to provide a bark fermentation product having a high content of fulvic acid and a method of producing the same.The present invention relates to a method of producing a fermented product of Japanese cedar bark, which contains a process in which 90% by weight or more of dried bark raw material is fermented with a dry substance standard to obtain a fermented product having a carbon ratio (C \/ N ratio) higher than 35. The present invention also relates to a fermented product of cedar bark with a carbon ratio (C \/ N ratio) higher than 35 and containing 0.5% or more fulvic acid with a dry reference.Diagram【課題】本発明は、フルボ酸含有量の高い樹皮発酵物及びその製造方法を提供することを目的とする。【解決手段】本発明は、乾燥物基準で90重量%以上がスギ樹皮である樹皮原料を発酵させて、炭素率(C/N比)が35よりも高い発酵物を得る工程を含む、スギ樹皮の発酵物の製造方法に関する。本発明はまた、炭素率(C/N比)が35よりも高く、乾燥物基準で0.5重量%以上のフルボ酸を含有する、スギ樹皮の発酵物に関する。【選択図】図1
