title: Mixed yeasts inocula for simultaneous production of SCP and treatment of vinasse to reduce soil and fresh water pollution.
abstract: 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.
authors.affiliation: Department of Biology, Federal University of Lavras, Lavras, MG, Brazil.
authors.forename: Josiane F
authors.initials: JF
authors.lastname: Pires
authors.affiliation: Department of Biology, Federal University of Lavras, Lavras, MG, Brazil.
authors.forename: Gustavo M R
authors.initials: GMR
authors.lastname: Ferreira
authors.affiliation: Department of Biology, Federal University of Lavras, Lavras, MG, Brazil.
authors.forename: Kelly C
authors.initials: KC
authors.lastname: Reis
authors.affiliation: Department of Biology, Federal University of Lavras, Lavras, MG, Brazil.
authors.forename: Rosane F
authors.initials: RF
authors.lastname: Schwan
authors.affiliation: Department of Biology, Federal University of Lavras, Lavras, MG, Brazil. Electronic address: cristinafsb@dbi.ufla.br.
authors.forename: Cristina F
authors.initials: CF
authors.lastname: Silva
mesh_terms: D000434:Alcoholic Beverages; D057919:Biological Oxygen Demand Analysis; D018533:Biomass; D004787:Environmental Pollution / Q000517:prevention & control; D007220:Industrial Waste / Q000009:adverse effects; D019697:Onions / Q000187:drug effects / Q000254:growth & development; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D012988:Soil Microbiology; D014865:Waste Disposal, Fluid / Q000379:methods*; D014876:Water Pollution / Q000517:prevention & control
chemical_list: D007220:Industrial Waste
keywords: Biological treatment; Microbial biomass; Saccharomyces; Single cell protein; Wastewater