RESUMEN
The dataset details the fermentation of D-glucose, L-rhamnose, and L-fucose and their end-product formation by the moderate thermophile Clostridium strain AK1 (DSM 18778) as related to the work described in "Propanediol from L-rhamnose using the moderately thermophilic Clostridium strain AK1" [1]. The influence of culture conditions on end product formation from D-glucose and L-rhamnose by AK1 was investigated in batch culture. Strain AK1 was cultivated at initial substrate concentrations varying from 0 to 60â¯mM and initial pH values varying from 4.5 to 8.5. Additionally different cultivation temperatures (30-65⯰C), the influence of liquid-gas phase ratio as well as different phosphate concentrations on growth were investigated.
RESUMEN
Clostridium strain AK1 was investigated for its capacity of producing 1,2-propanediol from l-rhamnose but not l-fucose. The maximum yields of 1,2-propanediol from rhamnose was 0.81â¯mol 1,2-PD/mol l-rhamnose. The influence of different initial substrate concentrations as well as the effect of temperature and pH on 1,2-PD production was investigated.
Asunto(s)
Clostridium/metabolismo , Ramnosa/metabolismo , Fermentación , Fucosa/metabolismo , Concentración de Iones de Hidrógeno , Propilenglicol/metabolismo , TemperaturaRESUMEN
Caldicellulosiruptor species degrade l-rhamnose and l-fucose to 1,2-propanediol. Six of the nine species within the genus produced 1,2-propanediol from l-rhamnose and three utilized l-fucose to produce the compound. Yields of 1,2-propanediol up to 40.5% of the theoretical yield were observed from methylpentoses catabolism.