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Fig. 4 | Biotechnology for Biofuels

Fig. 4

From: A novel cell factory for efficient production of ethanol from dairy waste

Fig. 4

Optimization of low-cost medium for the ethanol forming strain CS4435L. Samples were collected after 30 h from cultures having initially 50 g/L lactose. a, b CSL, YE and their combinations;  c, d CSLH  only. The addition of YE, CSL, or CSLH is calculated as w/v. YE yeast extract, CSL corn steep liquor, CSLH corn steep liquor hydrolysate, H1-H3 different hydrolysis conditions (H1: CSL treated with 0.05 % H2SO4; H2: CSL treated with 0.25 % H2SO4; H3: CSL treated with 0.5 % H2SO4). Experiments were conducted at least in duplicate and error bars indicate standard deviations

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