Perdas De Matéria-Prima: Um Estudo De Caso Na Indústria De Óleo De Soja

Guarienti, Édio Patric; Pinheiro, Elisangela; Godoy, Leoni Pentiado; Evangelista, Mário Luiz Santos; Lovato, Adalberto

doi:10.22409/engevista.v14i1.309

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…In his study, the author states that use of a binary extraction mixture meets environmental demands, as it reduces the use of hexane, which is directly tied to the oil industry. Other relevant characteristics of hexane are highlighted by Guarienti et al (2012), such as toxicity and flammability, which make its considered use or replacement, however partial, extremely important.…”

Section: Resultsmentioning

confidence: 99%

“…The use of a crop in a production process, in any area, must effectively meet the long-term market demand (GUARIENTI et al, 2012;TOMAZIN JUNIOR, 2008). Because of this, the extraction of soybean oil is frequently under study due to the range of variables that can influence the productivity of the process, as well as production costs (BRUM; ARRUDA; REGITANO-D' ARCE, 2009;FREITAS et al, 2010;NIMET et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…In the industrialisation of oilseeds, solvent extraction is the process most used, and according to Guarienti et al (2012) has been reported as the most efficient, with extraction capacity varying according to, among other factors, the solvent used, and the extraction time and temperature. Freitas et al (2010) state that several solvents are capable of extracting the oil from grains, with hexane being the most widely used solvent in the industrial process, having the disadvantage however of coming from non-renewable sources.…”

Section: Introductionmentioning

confidence: 99%

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Optimisation of the liquid-liquid extraction of soybean oil using a binary mixture1

Oliveira¹,

Pelúzio²

2015

Rev. Ciênc. Agron.

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The soybean has been widely studied due to its constituents and to their application. Authors have pointed out that its composition can vary, with its use frequently taking the form of oil. The oil extraction process, which is in constant application in the market, consists of the use of extraction solvents, with hexane being one of the most used; however the fact that this comes from non-renewable sources has aroused interest in its replacement. As a result, ethanol has been seen as an alternative solvent, despite increasing the cost of the process. This study therefore aims to evaluate the composition of three soybean cultivars planted in the region of Palmas, in the state of Tocantins, Brazil, and to optimise oil extraction from the beans through the use of a binary mixture of ethanol and hexane. The cultivars displayed high protein and lipid potential. The extraction time and temperature proved influential in the process. Ethanol, when present in greater quantity in the mixture, with an increase in temperature, caused an increase in the levels of extracted oil.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimisation of the liquid-liquid extraction of soybean oil using a binary mixture1

Oliveira¹,

Pelúzio²

2015

Rev. Ciênc. Agron.

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“…Segundo Santos et al (2012), para farinha de soja da BRS 257, encontraram um teor de cinzas de 6,89 g/100g, já Silva et al (2012), avaliando a composição centesimal da farinha de soja integral da variedade BRS 232, constataram um teor de 4,81 g/100g, semelhante aos encontrados neste trabalho. O maior teor de lipídeos foi observado nas farinhas provenientes de grãos SC, pois como observado por Guarienti et al (2012) a quantidade de óleo na porção casca é reduzida. A farinha da cultivar Vmax SB (SC) apresentou o maior valor com 29,5 g/100g e a BRS 267 SB (CC) o menor teor com 19,89 g/100g.…”

Section: Resultsunclassified

Obtenção E Caracterização De Farinhas De Soja De Variedades Geneticamente Melhoradas Para Alimentação Humana

Rigó¹,

Dahmer²,

Steffens³

et al. 2015

Anais Do Congresso Brasileiro De Engenharia Química Em Iniciação Científica - Cobeq IC 2015

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RESUMO -A soja (Glycine max (L.) Merrill) é uma das culturas de maior importância econômica no mundo. Em vista disso, as cultivares convencionais de soja geralmente são direcionadas para as indústrias de extração de óleo e o subproduto destas indústrias destinadas a alimentação animal. Contudo algumas cultivares de soja geneticamente melhoradas podem apresentar características que as tornam adequadas para diferentes utilizações, inclusive na alimentação humana. Assim, este trabalho teve como objetivo obter e caracterizar farinhas de soja provenientes de três variedades, uma convencional (Vmax), e duas para alimentação humana (BR 257 e BRS 267), quanto a sua composição físico-química e solubilidade proteica. As farinhas foram caracterizadas em relação a umidade, proteínas, lipídeos, cinzas, e índices de solubilidade proteica. Nas cultivares Vmax e BRS 267 foi efetuado o processo de branqueamento nos grãos com e sem casca. Para obtenção das farinhas os grãos sem branqueamento (Vmax, BRS 257 e BRS 267) e branqueados (Vmax e BRS 267), ambos com e sem casca, passaram pelo processo de torra, moagem e peneiramento. O processo de torra a 150°C por 30 minutos fez com que a solubilidade proteica atingisse valores abaixo de 10%, devido a severidade do tratamento. A farinha da variedade BRS 267 demostrou um maior conteúdo proteico, podendo melhorar o valor nutricional de alimentos a base de soja. Já a farinha obtida da cultivar Vmax foi a que mostrou o maior conteúdo lipídico, podendo ser utilizada nas indústrias de extração de óleo, para o fabrico de uma infinidade de produtos. Na farinha da cultivar BRS 257, foi observada uma composição química com valores intermediários as demais cultivares, mas com a vantagem de não necessitar de processamento térmico para a inativação das enzimas lipoxigenases (LOXs).

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“…Mechanical pressing is limited in terms of its applicability, especially the low oil extraction yield . The solvent n ‐hexane is highly flammable and has a high toxicity, being considered an air pollutant and a health hazard . The disadvantages of n ‐hexane have encouraged researchers to study the efficiency of other solvents.…”

Section: Introductionmentioning

confidence: 99%

Pressurized liquid extraction of oil from soybean seeds

2017

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The aim of this study was to investigate the extraction of soybean oil using ethanol under pressurized conditions. The effects of pressure (10 and 20 MPa), temperature (30 to 90 °C), and solvent flow (1 and 3 mL/min) were evaluated applying different extraction times. In addition, the thermodynamics parameters of the process were determined. It was observed that the pressure exerted no influence on the extraction kinetics, while an increase in temperature promoted better yields. The use of the highest solvent flow increased the initial extraction rate, but did not influence the yield under equilibrium conditions. Based on the thermodynamic parameters, the extraction was classified as endothermic (44.11 kJ/mol), irreversible (143.52 J/mol K), and partially spontaneous (0.60 to −8.01 kJ/mol), and an increase in the temperature favoured this spontaneity. Extraction using the classical Soxhlet method was evaluated for comparison purposes using ethanol and n‐hexane as solvents and ethanol showed a better extraction efficiency. The maximum yield obtained with pressurized liquid extraction (PLE) was 24.42 %, which represents ∼94 % of the yield obtained by classical extraction. Linoleic and oleic acids were the main fatty acids identified in the soybean oil, representing ∼76 % of the fatty acids composition, which was not influenced by the extraction method or the temperature used in the PLE.

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Perdas De Matéria-Prima: Um Estudo De Caso Na Indústria De Óleo De Soja

Cited by 3 publications

References 2 publications

Optimisation of the liquid-liquid extraction of soybean oil using a binary mixture1

Optimisation of the liquid-liquid extraction of soybean oil using a binary mixture1

Obtenção E Caracterização De Farinhas De Soja De Variedades Geneticamente Melhoradas Para Alimentação Humana

Pressurized liquid extraction of oil from soybean seeds

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