title: Gaseous environments modify reserve carbohydrate contents and cell survival in the brewing yeast Saccharomyces cerevisiae.
abstract: The use of H(2), He and O(2) during batch fermentation of Saccharomyces cerevisiae BRAS291 increased the final intracellular glycogen contents of the cells from 2-fold to 10-fold compared with a gas-free condition, and this depended on the gas applied. Differently, the intracellular trehalose contents increased from 2-fold to 10-fold in reducing conditions compared with more oxidizing conditions. During storage at 4 degrees C, the viability of cells cultivated with gas was twice that of cells cultivated without gas. These results could be explained by the intracellular carbohydrate contents as well as yeast ultrastructural modifications observed previously.
authors: Laboratoire de Génie des Procédés Microbiologiques et Alimentaires, UMR INRA/UB 1232, INRA, Dijon, France.
authors: Thu-Ha
authors: TH
authors: Pham
authors: Geneviève
authors: G
authors: Mauvais
authors: Catherine
authors: C
authors: Vergoignan
authors: Joëlle
authors: J
authors: De Coninck
authors: Rémy
authors: R
authors: Cachon
authors: Gilles
authors: G
authors: Feron
mesh_terms: D050260:Carbohydrate Metabolism / Q000187:drug effects; D002478:Cells, Cultured; D005740:Gases / Q000494:pharmacology*; D006003:Glycogen / Q000737:chemistry / Q000378:metabolism; D010084:Oxidation-Reduction; D012441:Saccharomyces cerevisiae / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism*
chemical_list: D005740:Gases; D006003:Glycogen