Evaluation of effects of rumen fluid in combination with probiotic preparations and vanillin on the luminescence of a recombinant strain E. coliIl'shat Karimov, Kristina Kondrashova, Galimzhan Duskaev and Olga KvanE3S Web Conf., 143 (2020) 02034DOI: https://doi.org/10.1051/e3sconf/202014302034