Optimization of Fermentation Conditions of Endophytic Bacteria with High Yield of 1,8-cineole from Cinnamomum longipaniculatum

In this paper, the single factor experiment was designed to optimize the fermentation conditions in order to improve the 1,8-cineole yield of the target strain. The results showed that the optimum fermentation conditions were as follows: fermentation temperature was 31 ℃, fermentation speed (dissolved oxygen) was 150 r·min⁻¹, fermentation pH was 6.5 and fermentation time was 20 h. The yield increased from 2.30 mg·L⁻¹ (without optimization) to 9.68 mg·L⁻¹, with an increase rate of 320.8%, which had a good application prospect.