• português (Brasil)
    • English
    • español
  • English 
    • português (Brasil)
    • English
    • español
  • Login
About
  • Policies
  • Instructions to authors
  • Contact
    • Policies
    • Instructions to authors
    • Contact
View Item 
  •   Home
  • Centro de Ciências Agrárias - CCA
  • Programas de Pós-Graduação
  • Produção Vegetal e Bioprocessos Associados - PPGPVBA-Ar
  • Teses e dissertações
  • View Item
  •   Home
  • Centro de Ciências Agrárias - CCA
  • Programas de Pós-Graduação
  • Produção Vegetal e Bioprocessos Associados - PPGPVBA-Ar
  • Teses e dissertações
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsAdvisorTitlesSubjectsCNPq SubjectsGraduate ProgramDocument TypeThis CollectionBy Issue DateAuthorsAdvisorTitlesSubjectsCNPq SubjectsGraduate ProgramDocument Type

My Account

Login

Produção de ficocianina por Aphanothece microscopica Nägeli a partir de vinhaça de cana-de-açúcar

Thumbnail
View/Open
MORAIS_Dayane_2018.pdf (1.893Mb)
Date
2018-02-26
Author
Morais, Dayane Vanessa
Metadata
Show full item record
Abstract
Microalgae cultivation has a great diversity of applications. Pigments produced by microalgae are largely used in many industries, such as food, pharmaceutical and cosmetics. Phycobiliproteins are photosynthetic pigments that capture around 50% of the light needed to maintain the metabolism of cyanobacteria. A big advantage for the use of microorganisms to produce pigments is that they can assimilate low-cost energy sources, including wastewaters. In this context, the present work proposed to evaluate the production of phycocyanin by Aphanothece microscopica Nägeli, through its cultivation in vinasse, an effluent generated abundantly in Brazil. The mixotrophic cultivation of A. microscopica in BG11 medium supplemented with vinasse showed superior performance than the photoautotrophic growth, in terms of phycocyanin accumulation, with specific rate of production (μP) and maximum productivity (Prodmax) of 9.86 mg phycocyanin mg biomass/h and 0.0047 mg phycocyanin/L/h, respectively. For the heterotrophic cultivation, the highest phycocyanin production occurred after 6 hours, with μP and Prodmax of 22.59 mg phycocyanin/mg biomass/h and 0.0067 mg phycocyanin/L/h, respectively. No statistically significant difference was found for wide ranges of pH, inoculum and salinity tested. The conditions which had the highest and lowest performance relative to μPmax were selected for further experiments on a benchtop bioreactor. The condition with the highest μPmax showed maximum productivity of 49.18 mg phycocyanin/mg biomass/h, and the lowest, 33.83 mg phycocyanin/mg biomass. Phycocyanin extraction with hydrochloric acid 12 mol/L was the most efficient method, yielding up to 5,6 times more phycocyanin than sonication with glass pearls and phosphate buffer extractions . A. microscopica biomass contained 4.6% of proteins and 6.38% of lipids. Those results show that vinasse can be used as a supplement for the production of phycocyanin by A. microscopica.
URI
https://repositorio.ufscar.br/handle/ufscar/10249
Collections
  • Teses e dissertações

UFSCar
Universidade Federal de São Carlos - UFSCar
Send Feedback

UFSCar

IBICT
 

 


UFSCar
Universidade Federal de São Carlos - UFSCar
Send Feedback

UFSCar

IBICT