Ethanol production from sugar beet thin juice by immobilized Saccharomyces cerevisiae : characterization of volatile compounds

Razmovski, Radojka N. and Vučurović, Vesna M.: Ethanol production from sugar beet thin juice by immobilized Saccharomyces cerevisiae : characterization of volatile compounds. In: Review of faculty of engineering : analecta technica Szegedinensia 3-4. pp. 119-123. (2012)

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Abstract

The potential of by-products and intermediate products of sugar beet processing as rawmaterials for bioethanol production in Serbia has a big scope in view of the demand of ethanol as an alternative for fossil fuels. The production of bioethanol from sugar beet thin juice by Saccharomyces cerevisiae immobilized on sugar beet pulp (SBP) enables one more opportunity for achieving the zerowaste goal, through a rational use of intermediate and by-products of sugar beet processing. The effect of inoculum concentration on volatile compounds content of distillate was examined. The increase of inoculum concentration from 2.0 g/1 to 2.6 g/l (dry mass basis) increased ethanol and aldehyde content of the distillate from 9.34 % v/v to 9.60 % v/v and from 238.6 mg/l a.a. to 301.5 mg/l a.a., but decreased methanol, acetic acid and ester content from 650.0 mg/l a.a. to 232.3 mg/l a.a., from 73.4 to 51.3 mg/l a.a., and from 272.0 mg/l a.a. to 220.8 mg/l a.a., respectively. The increase in inoculum concentration of SBP-immobilized yeast indicated improvement of distillate quality.

Item Type: Article
Journal or Publication Title: Review of faculty of engineering : analecta technica Szegedinensia
Date: 2012
Number: 3-4
ISSN: 1788-6392
Page Range: pp. 119-123
Language: angol
Uncontrolled Keywords: Mérnöki tudományok, Kémia
Additional Information: Bibliogr.: 123. p. ; összefoglalás angol nyelven
Date Deposited: 2016. Oct. 15. 12:24
Last Modified: 2019. Jan. 04. 11:09
URI: http://acta.bibl.u-szeged.hu/id/eprint/11926

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