13 fatty acids components, 2 sterol and phytol ones were identified from R. dentatua L., amounting to 86.03% of the total constituents.

从齿果酸模中离鉴定了13个脂肪酸成、2个甾类成和1个植醇，占色谱出峰面积的86.03%。

A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product.

从雄甾二的转化产生偶发MF2出发,经紫外诱变结合平板筛选,获得一株主要转化生产睾的突变株TS-N-121。