Fermentation method for rapidly converting baicalin into baicalein

The invention discloses a fermentation method for rapidly converting baicalin into baicalein, which comprises the following steps: mixing scutellaria baicalensis and natto in a mass ratio of (1-4): 1by taking natto which is fermented from soybeans and is subjected to after-ripening for not less than 15 days as a fermentation culture medium, and carrying out fermentation at the temperature of between 35 DEG C and 45 DEG C. After fermentation lasts for 2 days in the fermentation method, the conversion rate of baicalin in scutellaria baicalensis into baicalein can reach 90% or above. The fermentation time is greatly shortened, and the fermentation efficiency is improved. The fermentation method for rapidly converting baicalin into baicalein is low in cost, high in speed and high in practicability. 本发明公开了一种黄芩苷快速转化为黄芩素的发酵方法，是采用黄豆发酵且后熟不少于15d的纳豆作为发酵培养基，将黄芩与纳豆以1～4∶1的质量比混合，于35～45℃下进行发酵。以本发明发酵方法发酵2d后，黄芩中黄芩苷转化为黄芩素的转化率可以达到90%以上，大大缩短了发酵时间，提高了发酵效率，提供了一种成本低、速度快、实用性强的黄芩苷快速转化为黄芩素的发酵方法。