Highly efficient transformation of waste oil to biodiesel by immobilized lipase from Penicillium expansum

Li, Nan-Wei; Zong, Min‐Hua; Wu, Hong

doi:10.1016/j.procbio.2009.02.012

Cited by 112 publications

(35 citation statements)

References 18 publications

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“…This stepwise addition of methanol increased the reaction productivity by avoiding the stationary production phase and led to a plateau in FAME production at 12 hours. Similar reductions in the reaction time by shortening the stationary phase of FAME production have already been reported (Li et al, 2009). Therefore, in the RSM experiments, the first amount of methanol (one-third of the molar ratio shown in Table 1) was added at the start of the reaction, while the second aliquot of methanol (two-thirds of the molar ratio shown in Table 1) was added after 8 hours, and the total reaction time was 12 hours.…”

Section: Independent Variablessupporting

confidence: 53%

“…Li et al (2009) showed that in spite of the high yield reached using stepwise methanol addition, both the reaction time and rate of FAME conversion were slower. In experiments using a three-step methanol addition and 4% (wt) Novozym 435 as the catalyst, high FAME production yields were reached but only after 50 hours of reaction (Du et al, 2004;Watanabe et al, 2001).…”

Section: Independent Variablesmentioning

confidence: 99%

“…To solve these drawbacks the addition of water adsorbents to the lipase-catalyzed reaction has been recently investigated (Li et al, 2009;Wang et al, 2006). Some reported absorbents are blue silica gel, maceo-pored silica gel, fine-pored silica gel, and molecular sieves of 3 Å, 4 Å and 5 Å (Li et al, 2009;Wang et al, 2006).…”

Section: Enzymatic Biodiesel Production In An Anhydrous Medium With Lmentioning

confidence: 99%

“…Some reported absorbents are blue silica gel, maceo-pored silica gel, fine-pored silica gel, and molecular sieves of 3 Å, 4 Å and 5 Å (Li et al, 2009;Wang et al, 2006). Among the adsorbents examined, blue silica gel has been reported as the best one, increasing FAME yield when immobilized lipase from Penicillium expansum was used as catalyst (Li et al, 2009). However, high dosage of silica gel could provoke low biodiesel yield.…”

Section: Enzymatic Biodiesel Production In An Anhydrous Medium With Lmentioning

confidence: 99%

See 3 more Smart Citations

Feasible Novozym 435-Catalyzed Process to Fatty Acid Methyl Ester Production from Waste Frying Oil: Role of Lipase Inhibition

Azócar¹,

Ciudad²,

Muñoz³

et al. 2012

Enzyme Inhibition and Bioapplications

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Section: Independent Variablessupporting

confidence: 53%

Section: Independent Variablesmentioning

confidence: 99%

Section: Enzymatic Biodiesel Production In An Anhydrous Medium With Lmentioning

confidence: 99%

Section: Enzymatic Biodiesel Production In An Anhydrous Medium With Lmentioning

confidence: 99%

See 2 more Smart Citations

Feasible Novozym 435-Catalyzed Process to Fatty Acid Methyl Ester Production from Waste Frying Oil: Role of Lipase Inhibition

Azócar¹,

Ciudad²,

Muñoz³

et al. 2012

Enzyme Inhibition and Bioapplications

View full text Add to dashboard Cite

“…Além disso, esse biocombustível possui propriedades semelhantes às do óleo diesel produzido a partir de petróleo e pode ser usado diretamente nos motores a diesel atuais ou usado como uma mistura com óleo diesel bruto (Wassell Jr. e Dittmer, 2006;Vicente, et al, 2007, Helwani et al, 2009. Por esta razão, o biodiesel tem recentemente atraído atenção, em diversos países, devido à sua disponibilidade, renovabilidade, não-toxicidade, melhor qualidade das emissões e sua biodegradabilidade (Chen et al, 2009;Demirbas, 2009;Wei Li et al, 2009;Hayyan et al, 2010;Liu et al, 2010;Patil et al, 2010).…”

Section: Biodiesel No Mundo E Potenciais Matérias-primas Para Sua Prounclassified

Análise de viabilidade econômica da participação de cooperativas populares na cadeia de fornecimento de óleo residual de fritura a fábricas de biodiesel

2014

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Palavras-Chave: óleo residual de fritura, cooperativas, biodiesel, viabilidade econômica de cooperativas.Key words: residual frying oil, cooperatives, biodiesel, economic viability of cooperatives. Recommended Citation Federal University of Rio de Janeiro -Brazil AbstractThe residual oil frying (ROF) is the cheapest raw material for biodiesel production. The collection and grouping of ROF is a popular practice of cooperatives, that's supply biodiesel plants. However, for the survival and performance of these cooperatives, these should generate profit. Therefore, this article represents a contribution by structuring and presentation a procedure of four stages, consisting in assist popular cooperatives in the analysis of generating profit by the ROF's collection and operation. This procedure was applied in an association of cooperatives located in the metropolitan region of Rio de Janeiro. From this application, it was concluded that the collection should planned by a software routing and her cost would have a reduction of almost 34% over the actual cost applied and the association of cooperatives would be able to generate profits and will be protected against market fluctuations, even if the price of ROF reached its lowest market price. Guabiroba, R. C. S., D'Agosto, M. A. and Franca, L. S. (2014) Análise de viabilidade econômica da participação de cooperativas populares na cadeia de fornecimento de óleo residual de fritura a fábricas de biodiesel. Journal of Transport Literature, vol. 8, n. 4, Ricardo César da Silva Guabiroba, Márcio de Almeida D'Agosto, Luíza Santana Franca* Resumo O óleo residual de fritura (ORF) é a matéria-prima mais barata para a produção de biodiesel. É uma prática de cooperativas populares a coleta e o agrupamento do ORF de modo a gerar escala de fornecimento a fábricas de biodiesel. No entanto, para a sobrevivência e atuação dessas cooperativas, estas devem gerar lucro. Assim sendo, este artigo tem como contribuição a estruturação e a apresentação de um procedimento composto por quatro etapas, voltado a auxiliar cooperativas populares quanto à análise de geração de lucro referente à operação de coleta do ORF. Esse procedimento foi aplicado à realidade de uma associação de cooperativas localizada na região metropolitana do Rio de Janeiro. A partir dessa aplicação, verificou-se que se a coleta fosse realizada de modo planejado a partir de um software de roteirização, o seu custo teria uma redução de quase 34% em relação ao custo real praticado e a associação de cooperativas estaria apta a gerar lucro, mesmo se o preço do ORF atingisse seu menor preço de mercado, estando protegida contra variações de preço estabelecidas pelo mercado.www.journal-of-transport-literature.org JTL|RELIT

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Prospective and impacts of whole cell mediated alcoholysis of renewable oils for biodiesel production

Sun

Liu

2009

Biofuels Bioprod Bioref

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Biodiesel has received considerable attention during the past decade as a renewable, biodegradable and environmentally friendly fuel. There are extensive reports about immobilized lipase-mediated alcoholysis for biodiesel production and much progress has been achieved. In recent years, much attention has been paid to whole cell as the catalyst for biodiesel production. Whole cell process can be expected to reduce the biocatalyst cost considerably since separation and immobilization can be realized spontaneously during the process of cell cultivation. Currently, research related to whole cell mediated alcoholysis for biodiesel production is mainly focused on the following three aspects: (1) the optimization in cultivation of whole cell catalyst to obtain the maximal lipase activity; (2) the modifi cation of whole cell catalyst to improve its catalytic performance; and (3) the application of whole cell catalyst for biodiesel production. This mini-review covers the aforementioned research fi elds and the prospects of whole cell catalyst applied to biodiesel production are also discussed.

show abstract

Highly efficient transformation of waste oil to biodiesel by immobilized lipase from Penicillium expansum

Cited by 112 publications

References 18 publications

Feasible Novozym 435-Catalyzed Process to Fatty Acid Methyl Ester Production from Waste Frying Oil: Role of Lipase Inhibition

Feasible Novozym 435-Catalyzed Process to Fatty Acid Methyl Ester Production from Waste Frying Oil: Role of Lipase Inhibition

Análise de viabilidade econômica da participação de cooperativas populares na cadeia de fornecimento de óleo residual de fritura a fábricas de biodiesel

Prospective and impacts of whole cell mediated alcoholysis of renewable oils for biodiesel production

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