Study on the fermentation techniques of golen silk jujube paste leaven

In this experiment, golden silk jujube paste leaven fermentation process was studied by golden silk jujube paste as main materials. The single factor experiment method and the orthogonal design were applied for research on the yeast and Lactobacillus inoculation quantity, the ratio of carbon to nitrogen in the fermentation culture medium, fermentation time and temperature and other process conditions. The optimum processing parameters were as follows:fermentation temperature 30℃, ratio of carbon to nitrogen was 6 to 1 in fermentation medium, 0.1% yeast of inoculation quality, fully dissolved oxygen was guaranteed, fermented for 12h, then under the conditions of 37 ℃, add 0.5% Lactobacillus of inoculation amount, fermentation time 28h, finally controlling temperature was 6⁸℃ for 24h to make fragrance in fermentation broth.