Chemical composition of Rhodocyclus gelatinosus biomass produced in poultry slaughterhouse wastewater

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorPonsano, Elisa Helena Giglio
dc.creatorLacava, Pedro Magalhães
dc.creatorPinto, Marcos Franke
dc.date2014-05-20T14:17:52Z
dc.date2016-10-25T17:40:12Z
dc.date2014-05-20T14:17:52Z
dc.date2016-10-25T17:40:12Z
dc.date2003-03-01
dc.date.accessioned2017-04-05T22:26:13Z
dc.date.available2017-04-05T22:26:13Z
dc.identifierBrazilian Archives of Biology and Technology. Brazilian Archives of Biology and Technology, v. 46, n. 2, p. 143-147, 2003.
dc.identifier1516-8913
dc.identifierhttp://hdl.handle.net/11449/25353
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25353
dc.identifier10.1590/S1516-89132003000200001
dc.identifierS1516-89132003000200001
dc.identifierS1516-89132003000200001.pdf
dc.identifierhttp://dx.doi.org/10.1590/S1516-89132003000200001
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870252
dc.descriptionRhodocyclus gelatinosus R1 foi cultivado fotoautotroficamente em águas residuais de abatedouro de aves dentro de colunas de vidro (90x670 mm) durante sete dias a 31 ± 4ºC, sob anaerobiose e intensidade luminosa fornecida pela luz do dia e por três lâmpadas incandescentes (100W) mais quatro lâmpadas fluorescentes (40W). O cultivo obtido foi centrifugado (4.500xg/20 min) e liofilizado, originando a biomassa bacteriana, que continha 7,1% de umidade. A determinação da composição centesimal indicou (base seca) 67,6% de proteína bruta, 27,6% de carboidratos totais, 0,6% de lipídeos e 4,2% de cinzas. A composição em aminoácidos da fração protéica da biomassa mostrou-se semelhante à relatada na literatura para Rhodocyclus gelatinosus e para outras bactérias fotossintetizantes. A redução na DQO do efluente após o cultivo e a retirada da biomassa foi da ordem de 90%. A valiosa composição química da biomassa de Rhodocyclus gelatinosus R1 e o alto conteúdo em aminoácidos essenciais indicam o uso potencial desse produto na suplementação de ração para aves.
dc.descriptionRhodocyclus gelatinosus R1 grew photoautotrophically in poultry slaughterhouse wastewater inside glass columns (90x670 mm) during 7 days at 31 ± 4ºC, under anaerobiosis and lightness supplied by daylight plus 3 (100W) incandescent and 4 (40W) fluorescent lamps. The culture was centrifuged (4,500xg/20 min) and lyophilized to originate a bacterial biomass with 7.1% moisture content. Chemical composition investigation showed 67.6% crude protein, 27.6% total carbohydrate, 0.6% lipids and 4.2% ash (dry weight). Amino acid composition of the biomass was similar to others described in the literature for Rhodocyclus gelatinosus and for other photosynthetic bacteria. Effluent COD removal after cultivation and elimination of the biomass was around 90%. The valuable chemical composition of Rhodocyclus gelatinosus R1 biomass and the high content in essential amino acids signs for the potential use of the product in poultry feed.
dc.languageeng
dc.publisherBrazilian Archives of Biology and Technology
dc.relationBrazilian Archives of Biology and Technology
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectRhodocyclus gelatinosus
dc.subjectbiomass
dc.subjectpoultry slaughterhouse wastewater
dc.subjectchemical composition
dc.subjectamino acid composition
dc.subjectCOD removal
dc.titleChemical composition of Rhodocyclus gelatinosus biomass produced in poultry slaughterhouse wastewater
dc.typeOtro


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