Abstract:It is an ideal method to transform β-myrcene in hop oil to linalool and geraniol by microorganisms，which can improve the economic value of the β-myrcene.In this study，an endophytic strain Z1 was screened from the female flower-derived fruit of hops and identified based on colony morphology，physiological and biochemical indicators，and 16S rDNA sequence analysis.The conditions of the strain to transform β-myrcene to linalool and geraniol were explored，and the strain was applied to transform the β-myrcene in hop oil.The result showed that Z1 had the same colony morphology and physiological and biochemical characteristics with Pantoea anantis，and the homology of 16S rDNA hit 98.2%.Thus，it was named P.anantis Z1.The strain was cultured in the glucose peotone yeast and malt（GPYM）medium with 14.1 g/L β-myrcene，and it was found that concentration of the yielded linalool and geraniol was 0.89 mg/L and 1.09 mg/L，respectively.In the transformation of hop oil containing 1.41 g/L β-myrcene，the yield of linalool and geraniol stood at 0.52 g/L and 0.09 g/L，respectively，marking the transformation rates of 10 248 and 1 483 folds higher，separately.In conclusion，Z1 can transform β-myrcene into linalool and geraniol，and preliminary analysis indicates that linalool in hop oil promotes the transformation.