| CPC C12N 1/04 (2013.01) [C12N 1/20 (2013.01); C12Q 1/06 (2013.01)] | 21 Claims |

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1. A composition comprising one or more bacterial strains belonging to the class Clostridia, a disaccharide other than lactose, an organic nitrogen source, an antioxidant, sodium metabisulfite, and a buffer at a pH of 6.7 to 7.3.
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