Powdered intermediate of yacon as a prebiotic ingredient of bakery products N.M. Derkanosova, S. A. Shelamova, O.A. Vasilenko, V. K. Gins and N. I. Derkanosov BIO Web Conf., 17 (2020) 00212 Published online: 28 February 2020 DOI: 10.1051/bioconf/20201700212