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Background Used paper is particularly attractive as feedstock for bioethanol production because it is readily available [1]. The aim this work was to hydrolyze used office paper with dilute sulfuric acid for bioethanol production by three industrial strains of Saccharomyces cerevisiae. Acid concentration, time of the hydrolyze and ratio solid: liquid were varying according to factorial design. Reaction time was not significant. Maximum total reducing sugar content was obtained with 5 % V/V acid concentration and 1:10 ratio solid-liquid. Higher ethanol production was obtained by UFPEDA 1238 in 24 h. Increase 7 to 47 % was obtained in ethanol production, when S. cerevisiae UFPEDA 1238 was used in relation to other two strains.

Increase in bioethanol production from used office paper by Saccharomyces cerevisiae UFPEDA 1238