Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
dARK ID: | ark:/38995/0013000002fjp |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/4567 |
Resumo: | The residual oils obtained from the process of frying food are considered hazardous waste by the ministry of environment, due to their degradative nature when improperly discarded in soil and groundwater. Thousands of tons of this waste are produced daily across the country, and more than half are discarded improperly, because no public policies that encourage proper disposal and even recycling of these oils. Soaps are carboxylic salts can be made from these wastes, becoming an alternative to the recycling of frying oils, promoting sustainable development. Liquid soaps are widely used either as cleaning products or toiletries, however the use of frying oils in these products, delimits the knowledge still popular, with little initiative industries in marketing these products. Therefore, this work was developed with the aim to formulate liquid soaps with residual oil in a frying food industry, different pHs (8, 10, 12 and 14) and saponified by different bases (KOH / NaOH). The soaps were evaluated for their technological qualities, divided into physical (foaming ability, solubility, viscosity and cleaning), chemical properties (acidity and alkalinity free) and microbiological (minimal inhibitory concentration for E. coli and S. aureus). The two tests with liquid soaps KOH or NaOH, were processed under mechanical stirring and soaps obtained at pH 8, 10, 12 and 14 using KOH or HCL / NaOH to correct pH. Liquid soaps with KOH showed characteristics less viscous than treatments with NaOH (propensity for solidification) confirming the better employment of this base in the production of liquid soaps. The cleaning power of soaps with KOH and NaOH was similar (yield around 93% of the ability to clean greasy surfaces to soiling 87% with low levels of fats), increasing with an increase in pH of the formulations. Liquid soaps with KOH and NaOH, showed good ability of foaming, however the best solubilization capacity (water, ethanol, methanol, acetone and petroleum ether), was acquired with soaps with KOH (pH 10, 12 and 14), soaps pH 8 were sparingly soluble in both assays (KOH / NaOH). The antibacterial analysis, through minimum inhibitory concentration showed that soaps with NaOH able to inhibit the cultivation of S. aureus and E. coli, a smaller amount (6.25 and 25%, respectively) than the soap with KOH (at least 50% of soap and 100). The kinetic model that best fit the values obtained for pH was processing the first order. Both trials evaluated had technological characteristics favorable for their marketing, with soaps with more alkaline pH may be intended for industrial use, since its high pH does not allow it to be handled by untrained people. Soaps with lower pHs (8, 10), may be destined for domestic or commercial, allowing a good efficiency of their application. |
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Soares Júnior, Manoel Soareshttp://lattes.cnpq.br/0920319108540253Campos, Maria Raquel HidalgoCaliari, MárcioRodriguez, Armando GarciaOliveira, Tatianne Ferreira deSoares Junior, Manoel Soareshttp://lattes.cnpq.br/1960123955789681Herranz, Andressa Pasini2015-05-22T11:51:56Z2013-03-04HERRANZ, A. P. Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes. 2013. 180 f. Dissertação (Mestrado em Ciência e Tecnologia de Alimentos) - Universidade Federal de Goiás, Goiânia, 2013.http://repositorio.bc.ufg.br/tede/handle/tede/4567ark:/38995/0013000002fjpThe residual oils obtained from the process of frying food are considered hazardous waste by the ministry of environment, due to their degradative nature when improperly discarded in soil and groundwater. Thousands of tons of this waste are produced daily across the country, and more than half are discarded improperly, because no public policies that encourage proper disposal and even recycling of these oils. Soaps are carboxylic salts can be made from these wastes, becoming an alternative to the recycling of frying oils, promoting sustainable development. Liquid soaps are widely used either as cleaning products or toiletries, however the use of frying oils in these products, delimits the knowledge still popular, with little initiative industries in marketing these products. Therefore, this work was developed with the aim to formulate liquid soaps with residual oil in a frying food industry, different pHs (8, 10, 12 and 14) and saponified by different bases (KOH / NaOH). The soaps were evaluated for their technological qualities, divided into physical (foaming ability, solubility, viscosity and cleaning), chemical properties (acidity and alkalinity free) and microbiological (minimal inhibitory concentration for E. coli and S. aureus). The two tests with liquid soaps KOH or NaOH, were processed under mechanical stirring and soaps obtained at pH 8, 10, 12 and 14 using KOH or HCL / NaOH to correct pH. Liquid soaps with KOH showed characteristics less viscous than treatments with NaOH (propensity for solidification) confirming the better employment of this base in the production of liquid soaps. The cleaning power of soaps with KOH and NaOH was similar (yield around 93% of the ability to clean greasy surfaces to soiling 87% with low levels of fats), increasing with an increase in pH of the formulations. Liquid soaps with KOH and NaOH, showed good ability of foaming, however the best solubilization capacity (water, ethanol, methanol, acetone and petroleum ether), was acquired with soaps with KOH (pH 10, 12 and 14), soaps pH 8 were sparingly soluble in both assays (KOH / NaOH). The antibacterial analysis, through minimum inhibitory concentration showed that soaps with NaOH able to inhibit the cultivation of S. aureus and E. coli, a smaller amount (6.25 and 25%, respectively) than the soap with KOH (at least 50% of soap and 100). The kinetic model that best fit the values obtained for pH was processing the first order. Both trials evaluated had technological characteristics favorable for their marketing, with soaps with more alkaline pH may be intended for industrial use, since its high pH does not allow it to be handled by untrained people. Soaps with lower pHs (8, 10), may be destined for domestic or commercial, allowing a good efficiency of their application.Os óleos residuais obtidos do processo de frituras de alimentos são considerados resíduos perigosos pelo ministério do meio ambiente, devido a sua natureza degradativa quando descartados incorretamente, nos solos e águas. Milhares de toneladas deste resíduo são produzidos diariamente em todo o país, sendo que mais da metade é descartada de maneira incorreta, por não haver políticas públicas que incentivem o descarte correto e até mesmo a reciclagem destes óleos. Os sabões são sais carboxílicos que podem ser produzidos a partir destes resíduos, tornando-se uma alternativa para a reutilização dos óleos de frituras, favorecendo o desenvolvimento sustentável. Os sabões líquidos, são amplamente utilizados, seja como produtos de limpeza ou de higiene pessoal, entretanto a utilização dos óleos de frituras nestes produtos, ainda se delimita à conhecimentos populares, com pouca iniciativa das indústrias em comercializar estes produtos. Neste contexto este trabalho foi desenvolvido, com o objetivo de formular sabões líquidos com óleo residual de fritura de uma indústria alimentícia, de diferentes pHs (8, 10, 12 e 14) e saponificados por diferentes bases (KOH/ NaOH). Os sabões foram avaliados quanto às suas qualidades tecnológicas, dividas em físicas (capacidade de formação de espuma, de solubilidade, de limpar e viscosidade), químicas (alcalinidade e acidez livre) e microbiológicas (concentração inibitória mínima para E. coli e S. aureus). Os dois ensaios de sabões líquidos com KOH ou NaOH, foram processados sob agitação mecânica e obtidos sabões com pH 8, 10, 12 e 14 utilizando-se HCL ou KOH/ NaOH para corrigir os pHs. Os sabões líquidos com KOH apresentaram características menos viscosas do que os tratamentos com NaOH (propensão à solidificação) confirmando a melhor empregabilidade desta base na produção de sabões líquidos. O poder de limpeza dos sabões com KOH e NaOH foi similar (obtendo ao redor de 93% de capacidade de limpar superfícies gordurosas 87% para sujidades com baixos teores de gorduras), aumentando conforme houve um aumento do pH das formulações. Os sabões líquidos com KOH e NaOH, apresentaram boa capacidade de formação de espuma, entretanto a melhor capacidade de solubilização (água, etanol, metanol acetona e éter de petróleo), foi adquirida com os sabões com KOH (pH 10, 12 e 14), os sabões de pH 8 foram limitadamente solúvel nos dois ensaios (KOH / NaOH). A análise antimicrobiana, por meio da concentração inibitória mínima, mostrou que os sabões com NaOH conseguiram inibir as culturas de S. aureus e E. coli, em quantidade menores (6,25 e 25% respectivamente) do sabão do que os com KOH (mínima de 50 e 100% do sabão). O modelo cinético que melhor se ajustou aos valores obtidos para o pH do processamento foi o de primeira ordem. Os dois ensaios avaliados apresentaram características tecnológicas favoráveis para a sua comercialização, sendo que os sabões com pHs mais alcalinos podem ser destinados para uso industrial, já que seu pH elevado não permite que seja manipulado por pessoas não treinadas. Os sabões com pHs menores (8 e 10), podem ser destinados para o uso doméstico ou comercial, permitindo uma boa eficiência de sua aplicação.Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-05-22T11:49:48Z No. of bitstreams: 2 Dissertação - Andressa Pasini Herranz de Carvalho - 2013.pdf: 4440445 bytes, checksum: 9c8760635007ecd17af9fe33a5ee57e1 (MD5) license_rdf: 21267 bytes, checksum: 73e23c2acaaf13389e092bd813e3223d (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-05-22T11:51:56Z (GMT) No. of bitstreams: 2 Dissertação - Andressa Pasini Herranz de Carvalho - 2013.pdf: 4440445 bytes, checksum: 9c8760635007ecd17af9fe33a5ee57e1 (MD5) license_rdf: 21267 bytes, checksum: 73e23c2acaaf13389e092bd813e3223d (MD5)Made available in DSpace on 2015-05-22T11:51:56Z (GMT). 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dc.title.por.fl_str_mv |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
dc.title.alternative.eng.fl_str_mv |
Quality physics, chemistry and antimicrobial of liquid soaps prepared with residual oil frying and different agents saponificants |
title |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
spellingShingle |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes Herranz, Andressa Pasini Sabão líquido KOH NaOH Óleo de fritura Liquid soap KOH NaOH Frying oil CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOS |
title_short |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
title_full |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
title_fullStr |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
title_full_unstemmed |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
title_sort |
Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes |
author |
Herranz, Andressa Pasini |
author_facet |
Herranz, Andressa Pasini |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Soares Júnior, Manoel Soares |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0920319108540253 |
dc.contributor.advisor-co1.fl_str_mv |
Campos, Maria Raquel Hidalgo |
dc.contributor.advisor-co2.fl_str_mv |
Caliari, Márcio |
dc.contributor.referee1.fl_str_mv |
Rodriguez, Armando Garcia |
dc.contributor.referee2.fl_str_mv |
Oliveira, Tatianne Ferreira de |
dc.contributor.referee3.fl_str_mv |
Soares Junior, Manoel Soares |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1960123955789681 |
dc.contributor.author.fl_str_mv |
Herranz, Andressa Pasini |
contributor_str_mv |
Soares Júnior, Manoel Soares Campos, Maria Raquel Hidalgo Caliari, Márcio Rodriguez, Armando Garcia Oliveira, Tatianne Ferreira de Soares Junior, Manoel Soares |
dc.subject.por.fl_str_mv |
Sabão líquido KOH NaOH Óleo de fritura |
topic |
Sabão líquido KOH NaOH Óleo de fritura Liquid soap KOH NaOH Frying oil CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOS |
dc.subject.eng.fl_str_mv |
Liquid soap KOH NaOH Frying oil |
dc.subject.cnpq.fl_str_mv |
CIENCIA E TECNOLOGIA DE ALIMENTOS::CIENCIA DE ALIMENTOS |
description |
The residual oils obtained from the process of frying food are considered hazardous waste by the ministry of environment, due to their degradative nature when improperly discarded in soil and groundwater. Thousands of tons of this waste are produced daily across the country, and more than half are discarded improperly, because no public policies that encourage proper disposal and even recycling of these oils. Soaps are carboxylic salts can be made from these wastes, becoming an alternative to the recycling of frying oils, promoting sustainable development. Liquid soaps are widely used either as cleaning products or toiletries, however the use of frying oils in these products, delimits the knowledge still popular, with little initiative industries in marketing these products. Therefore, this work was developed with the aim to formulate liquid soaps with residual oil in a frying food industry, different pHs (8, 10, 12 and 14) and saponified by different bases (KOH / NaOH). The soaps were evaluated for their technological qualities, divided into physical (foaming ability, solubility, viscosity and cleaning), chemical properties (acidity and alkalinity free) and microbiological (minimal inhibitory concentration for E. coli and S. aureus). The two tests with liquid soaps KOH or NaOH, were processed under mechanical stirring and soaps obtained at pH 8, 10, 12 and 14 using KOH or HCL / NaOH to correct pH. Liquid soaps with KOH showed characteristics less viscous than treatments with NaOH (propensity for solidification) confirming the better employment of this base in the production of liquid soaps. The cleaning power of soaps with KOH and NaOH was similar (yield around 93% of the ability to clean greasy surfaces to soiling 87% with low levels of fats), increasing with an increase in pH of the formulations. Liquid soaps with KOH and NaOH, showed good ability of foaming, however the best solubilization capacity (water, ethanol, methanol, acetone and petroleum ether), was acquired with soaps with KOH (pH 10, 12 and 14), soaps pH 8 were sparingly soluble in both assays (KOH / NaOH). The antibacterial analysis, through minimum inhibitory concentration showed that soaps with NaOH able to inhibit the cultivation of S. aureus and E. coli, a smaller amount (6.25 and 25%, respectively) than the soap with KOH (at least 50% of soap and 100). The kinetic model that best fit the values obtained for pH was processing the first order. Both trials evaluated had technological characteristics favorable for their marketing, with soaps with more alkaline pH may be intended for industrial use, since its high pH does not allow it to be handled by untrained people. Soaps with lower pHs (8, 10), may be destined for domestic or commercial, allowing a good efficiency of their application. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-03-04 |
dc.date.accessioned.fl_str_mv |
2015-05-22T11:51:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
HERRANZ, A. P. Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes. 2013. 180 f. Dissertação (Mestrado em Ciência e Tecnologia de Alimentos) - Universidade Federal de Goiás, Goiânia, 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/4567 |
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ark:/38995/0013000002fjp |
identifier_str_mv |
HERRANZ, A. P. Qualidade física, química e antimicrobiana de sabões líquidos elaborados com óleo residual de fritura e diferentes agentes saponificantes. 2013. 180 f. Dissertação (Mestrado em Ciência e Tecnologia de Alimentos) - Universidade Federal de Goiás, Goiânia, 2013. ark:/38995/0013000002fjp |
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http://repositorio.bc.ufg.br/tede/handle/tede/4567 |
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por |
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por |
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600 600 600 600 |
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6253353800405954971 |
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http://creativecommons.org/licenses/by-nd/4.0/ info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nd/4.0/ |
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openAccess |
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Universidade Federal de Goiás |
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Programa de Pós-graduação em Ciência e Tecnologia de Alimentos (EAEA) |
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UFG |
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Brasil |
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Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) |
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Universidade Federal de Goiás |
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