Data/hora: 11/06/2024 20:08:13

Biblioteca(s): | Embrapa Suínos e Aves.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 02/08/2019
Data da última atualização: | 24/09/2019
Autoria: | MICHELON, W.; SILVA, M. L. B. da; MEZZARI, M. P.; PIROLLI, M.; PRANDINI, J. M.; SOARES, H. M.
Afiliação: | MARCIO LUIS BUSI DA SILVA, CNPSA; MELISSA PAOLA MEZZARI.
Título: | Effects of nitrogen and phosphorus on biochemical composition of microalgae polyculture harvested from phycoremediation of piggery wastewater digestate.
Ano de publicação: | 2016
Fonte/Imprenta: | Applied Biochemistry and Biotechnology, v. 178, n. 7, p. 1407-1419, 2016.
DOI: | 10.1007/s12010-015-1955-x
Idioma: | Inglês
Conteúdo: | Abstract: The effects of nitrogen (N) and/or phosphorus (P) starvation on the biochemical composition of native microalgae Chlorella spp. polyculture obtained from the phycoremediation of swine wastewaters were investigated. Microalgae-specific growth rate of 1.2 day(-1) was achieved (30.3 mg L(-1) day(-1)). PO4 (-2) and NH3 were completely removed from swine digestate effluent after 3 and 11 days, respectively. Microalgae harvested immediately after nutrient removal showed high protein (56-59 %) and carbohydrate (25-34 %) but low lipid (1.8-3 %) contents. Depletion of N or P alone stimulated carbohydrate production at the expenses of proteins. Significant lipid accumulation from 3 %&#8201;±&#8201;0.5 to 16.3 %&#8201;±&#8201;0.8 was reached only after 25 days following N and P starvation as demonstrated by Nile red-stained cells. Regarding to the effects of harvesting methods on cellular biochemical composition, circumstantial evidences indicate that coagulation-flocculation with tannin may lead to lower protein and lipid amounts but increased carbohydrate content (p&#8201;<&#8201;0.01) as compared to centrifugation.
Palavras-Chave: | Phycoremediation; Swine wastewater.
Thesagro: | Águas Residuais; Microalga; Suíno.
Thesaurus Nal: | Carbohydrates; Lipids; Microalgae.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/200202/1/Effects-of-Nitrogen-and-Phosphorus-on-Biochemical-Composition-of-Microalgae-Polyculture-Harvested-from-Phycoremediation-of-Piggery-Wastewater.pdf
Registro original: | Embrapa Suínos e Aves (CNPSA)
Exemplares: | CNPSA - (21625-1) - UPC - AP - DD -  -  -  - DIS