Fermentation of green alga sea-lettuce (Ulva sp) and metabolism of its sulphate by human colonic microbiota in a semi-continuous culture system M. Durand, P. Beaumatin, B. Bulman, A. Bemalier, JP Grivet, M. Serezat, G. Gramet and M. LahayeReprod. Nutr. Dev., 37 3 (1997) 267-283DOI: https://doi.org/10.1051/rnd:19970303