Mixed yeasts inocula for simultaneous production of SCP and treatment of vinasse to reduce soil and fresh water pollution.

Autor: Pires JF; Department of Biology, Federal University of Lavras, Lavras, MG, Brazil., Ferreira GMR; Department of Biology, Federal University of Lavras, Lavras, MG, Brazil., Reis KC; Department of Biology, Federal University of Lavras, Lavras, MG, Brazil., Schwan RF; Department of Biology, Federal University of Lavras, Lavras, MG, Brazil., Silva CF; Department of Biology, Federal University of Lavras, Lavras, MG, Brazil. Electronic address: cristinafsb@dbi.ufla.br.
Jazyk: angličtina
Zdroj: Journal of environmental management [J Environ Manage] 2016 Nov 01; Vol. 182, pp. 455-463. Date of Electronic Publication: 2016 Aug 12.
DOI: 10.1016/j.jenvman.2016.08.006
Abstrakt: This study evaluated the use of vinasse as a substrate for microbial biomass production and its disposal impact on the environment. After grown in vinasse, the microbial biomass (SCP) of two Saccharomyces cerevisiae strains, CCMA 0137 and CCMA 0188, showed high levels of essential amino acids (3.78%), varying levels of chemical elements, and low nucleic acid content (2.38%), i. e, good characteristics to food supplemements. Following biological treatment, spent vinasse biochemical oxygen demand (BOD) and chemical oxygen demand (COD) decreased to 51.56 and 29.29%, respectively. Cultivation with S. cerevisiae significantly reduced short term phytotoxicity and toxicity on soil microbiota of spent vinasse.
(Copyright © 2016 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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