Varmira, K., Habibi, A., Airlift bioreactor for the production of carotenoids. IR patent, 87538, C12C  G21.

 

                                       Habibi, A., Varmira, K., A process for producing carotenoids using a microorganism Rhodotorula Rubra. IR patent, 87072, C09B 67/08.