Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais
Biosurfactants are actives compounds reducers of the surface tension, metabolites extracted from microorganisms, as well as are stable compounds at different environment conditions. The main characteristics of these compounds are related to biodegradability and to absence of toxicity. In the last fe...
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Universidade Federal de Uberlândia
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ftunifuberlandia:oai:repositorio.ufu.br:123456789/21648 2023-10-09T21:46:33+02:00 Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais Production of low-cost biosurfactants from agroindustrial residue Nagy, Géssika Marçal Campos, Edgar Silveira Wendling, Beno Azevedo, Lucas Carvalho Basílio de Sanches, Sérgio Marcos 2018-02-22 application/pdf https://repositorio.ufu.br/handle/123456789/21648 https://doi.org/10.14393/ufu.di.2018.778 por por Universidade Federal de Uberlândia Brasil Programa de Pós-graduação em Agronomia https://repositorio.ufu.br/handle/123456789/21648 http://dx.doi.org/10.14393/ufu.di.2018.778 Acesso Aberto Biossurfactantes Resíduos agroindustriais Leveduras Cryptococcus Antártida Biosurfactants Agroindustrial residues Yeast Antarctica Agronomia Resíduos industriais Levedos CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA Dissertação 2018 ftunifuberlandia https://doi.org/10.14393/ufu.di.2018.778 2023-09-20T15:12:41Z Biosurfactants are actives compounds reducers of the surface tension, metabolites extracted from microorganisms, as well as are stable compounds at different environment conditions. The main characteristics of these compounds are related to biodegradability and to absence of toxicity. In the last few years, a range of studies have been developed in order to include agroindustrial residues in the culture medium for the biosurfactants production. The objective of this study was to evaluate pineapple and cashew residues in a culture medium formulation for the yeast Cryptococcus victoriae, reducing, consequently, the value of the biosurfactant production. In this way, the sugar content of pineapple and cashew extracts was evaluated by the methodology of Miller, 1959. The best carbon and nitrogen sources were selected by factorial design and their ideal concentrations for the culture medium were determined using methodology of response surface and software R. Results showed that the cashew extract had approximately four times more reducing sugars than the pineapple extract, with values of 77.24 g L-1 and 18.87 g L-1, respectively. In addition to the extracts, differents carbon and nitrogen sources were used to evaluate the biosurfactant production. After the selection of the best sources (cashew extract, yeast extract, ammonium citrate and sodium acetate), the experimental planning was performed. This planning provided three significant factors for surface tension reducers in the cashew extract, yeast extract and ammonium citrate culture medium. When the culture medium using these substrates were formulated, surface tension values ranged from 40 to 55 mN m-1. The analysis of the response surface methodology was performed, and evaluation of the individual equations to obtain the general equation and, therefore, the ideals concentrations for reduce the surface tension. Thus, the productive capacity of Cryptococcus victoriae isolated of the Antarctic environment, using agroindustrial residue, was confirmed. In general, ... Thesis Antarc* Antarctic Antarctica Antártida Cryptococcus victoriae Universidade Federal de Uberlândia: Repositório Institucional UFU Antarctic The Antarctic |
institution |
Open Polar |
collection |
Universidade Federal de Uberlândia: Repositório Institucional UFU |
op_collection_id |
ftunifuberlandia |
language |
Portuguese |
topic |
Biossurfactantes Resíduos agroindustriais Leveduras Cryptococcus Antártida Biosurfactants Agroindustrial residues Yeast Antarctica Agronomia Resíduos industriais Levedos CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
spellingShingle |
Biossurfactantes Resíduos agroindustriais Leveduras Cryptococcus Antártida Biosurfactants Agroindustrial residues Yeast Antarctica Agronomia Resíduos industriais Levedos CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA Nagy, Géssika Marçal Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
topic_facet |
Biossurfactantes Resíduos agroindustriais Leveduras Cryptococcus Antártida Biosurfactants Agroindustrial residues Yeast Antarctica Agronomia Resíduos industriais Levedos CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA::PROCESSOS INDUSTRIAIS DE ENGENHARIA QUIMICA |
description |
Biosurfactants are actives compounds reducers of the surface tension, metabolites extracted from microorganisms, as well as are stable compounds at different environment conditions. The main characteristics of these compounds are related to biodegradability and to absence of toxicity. In the last few years, a range of studies have been developed in order to include agroindustrial residues in the culture medium for the biosurfactants production. The objective of this study was to evaluate pineapple and cashew residues in a culture medium formulation for the yeast Cryptococcus victoriae, reducing, consequently, the value of the biosurfactant production. In this way, the sugar content of pineapple and cashew extracts was evaluated by the methodology of Miller, 1959. The best carbon and nitrogen sources were selected by factorial design and their ideal concentrations for the culture medium were determined using methodology of response surface and software R. Results showed that the cashew extract had approximately four times more reducing sugars than the pineapple extract, with values of 77.24 g L-1 and 18.87 g L-1, respectively. In addition to the extracts, differents carbon and nitrogen sources were used to evaluate the biosurfactant production. After the selection of the best sources (cashew extract, yeast extract, ammonium citrate and sodium acetate), the experimental planning was performed. This planning provided three significant factors for surface tension reducers in the cashew extract, yeast extract and ammonium citrate culture medium. When the culture medium using these substrates were formulated, surface tension values ranged from 40 to 55 mN m-1. The analysis of the response surface methodology was performed, and evaluation of the individual equations to obtain the general equation and, therefore, the ideals concentrations for reduce the surface tension. Thus, the productive capacity of Cryptococcus victoriae isolated of the Antarctic environment, using agroindustrial residue, was confirmed. In general, ... |
author2 |
Campos, Edgar Silveira Wendling, Beno Azevedo, Lucas Carvalho Basílio de Sanches, Sérgio Marcos |
format |
Thesis |
author |
Nagy, Géssika Marçal |
author_facet |
Nagy, Géssika Marçal |
author_sort |
Nagy, Géssika Marçal |
title |
Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
title_short |
Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
title_full |
Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
title_fullStr |
Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
title_full_unstemmed |
Produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
title_sort |
produção de biossurfactante de baixo custo a partir de resíduos agroindustriais |
publisher |
Universidade Federal de Uberlândia |
publishDate |
2018 |
url |
https://repositorio.ufu.br/handle/123456789/21648 https://doi.org/10.14393/ufu.di.2018.778 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica Antártida Cryptococcus victoriae |
genre_facet |
Antarc* Antarctic Antarctica Antártida Cryptococcus victoriae |
op_relation |
https://repositorio.ufu.br/handle/123456789/21648 http://dx.doi.org/10.14393/ufu.di.2018.778 |
op_rights |
Acesso Aberto |
op_doi |
https://doi.org/10.14393/ufu.di.2018.778 |
_version_ |
1779322260173094912 |