**5. Conclusions**

As per the available literature, there are number of strategies to increase the product yield. However, this area of research is still a hot topic as new strategies need to be developed which can lead to high yields of AD from cheaper substrates. Techniques involving industrially appropriate strains or addition of bioavailable catalysts to enhance the conversion or analysis of molecular pathway for generation of by-products. This may lead to development of a commercially cost effective process with high yields of the desired product. AD being one of the most important steroids which has high demand in pharmaceuticals as it is the precursor for widely marketed drug category known as steroids. Therefore, the industrial production of this compound will greatly benefit the biomedical sector.

**Author details**

India

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Rutuja Rokade, Selvan Ravindran\*, Pooja Singh and Jitendra K. Suthar

Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Pune,

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