Bioethanol production from Asphodelus aestivus

Polycarpou, Polycarpos

doi:10.1016/j.renene.2009.04.015

Cited by 10 publications

(12 citation statements)

References 2 publications

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“…This time was called the death phase. Polycarpou (2009) gained highest yield of ethanol at 30% of Z. mobilis but then it decreased after 40% Z. mobilis. This result was due to at the concentration of 40% Z. mobilis, the amount of sugar in the substrate was not completely converted to ethanol, but rather used as a carbon source for cell growth.…”

Section: Effect Of Z Mobilis Concentration On Ethanol Producedmentioning

confidence: 91%

“…This result was due to at the concentration of 40% Z. mobilis, the amount of sugar in the substrate was not completely converted to ethanol, but rather used as a carbon source for cell growth. The lower of ethanol yield from experimental compared to theoretical ethanol yield had been reported by Polycarpou (2009). The tuber called a Asphodelus aestivus L plant had been used for bioethanol production (Polycarpou, 2009).…”

Section: Effect Of Z Mobilis Concentration On Ethanol Producedmentioning

confidence: 96%

“…The lower of ethanol yield from experimental compared to theoretical ethanol yield had been reported by Polycarpou (2009). The tuber called a Asphodelus aestivus L plant had been used for bioethanol production (Polycarpou, 2009). The process consisted of cooking the flour mash at a temperature of 95 C, combined by liquefaction and saccharification of the starch using enzymes, like alpha-amylase and glucoamylase.…”

Section: Effect Of Z Mobilis Concentration On Ethanol Producedmentioning

confidence: 99%

“…Moreover, that issue is also stimulated by the increase of price of fossil fuels and the need to protect the planet from the climatic changes caused by the emission of greenhouse gases from burning them (Polycarpou, 2009;Aggarwal, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis

Kusmiyati

Hadiyanto

Kusumadewi

2016

Int. J. Renew. Energy Dev.

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Due to the depletion of fossil oil sources, Indonesia attempts to search new source of bioenergy including bioethanol. One of this sources is Iles-iles tubers (Amorphophallus campanulatus), which is abundantly available in Java Indonesia. The carbohydrate content in Iles-Iles tuber flour was 77% and it can be converted to ethanol by three consecutive steps methods consist of liquefaction-saccharification using α and β-amylase, respectively and then followed by fermentation by using Z. mobilis. The objective of this research was to convert the Iles-iles flour to bioethanol by fermentation process with Z.mobilis. The ethanol production process was studied at various starch concentration 15-30% g/L, Z. mobilis concentration (10-40%) and pH fermentation of (4-6). The result showed that the yield of bioethanol (10.33%) was the highest at 25% starch concentration and 25% of Z.mobilis concentration. The optimum conditions was found at 4.5, 30°C, 10%, 120 h for pH, temperature, Z. mobilis concentration and fermentation time, respectively at which ACT tuber flour produced a maximum ethanol of 10.33 % v/v.Article History: Received November 12nd 2015; Received in revised form January 25th 2016; Accepted January 29th 2016; Available online How to Cite This Article: Kusmiyati , Hadiyanto,H and Kusumadewi, I (2016). Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis. Int. Journal of Renewable Energy Development, 9(1), 9-14 http://dx.doi.org/10.14710/ijred.5.1.9-14

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Section: Effect Of Z Mobilis Concentration On Ethanol Producedmentioning

confidence: 91%

Section: Effect Of Z Mobilis Concentration On Ethanol Producedmentioning

confidence: 96%

Section: Effect Of Z Mobilis Concentration On Ethanol Producedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis

Kusmiyati

Hadiyanto

Kusumadewi

2016

Int. J. Renew. Energy Dev.

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“…Hoy en día se utilizan tres tipos de materias primas para la producción a gran escala de etanol de origen biológico (bioetanol): Substancias con alto contenido de sacarosa, caña de azúcar, remolacha, melazas, sorgo dulce, Sustancias con alto contenido de almidón, maíz, patata, yuca, Substancias con alto contenido de celulosa, madera, residuos agrícolas, [1][2][3][4][5][6] para obtener alcohol que pueda ser utilizado como biocombustible debe de ser purificado mediante procesos de destilación, 4,5 es por ello que el presente trabajo pretende la purificación del licor de fermentación, mediante el uso hidrogeles de acrilamida que tienen la capacidad de absorber agua y no absorben etanol, 7 se necesitan hidrogeles que sean capaces de absorber grandes cantidades de agua, para realizar un proceso previo de remoción de agua, logrando incrementar la concentración de etanol de las soluciones acuosas, por lo que la síntesis de hidrogeles de acrilamida superabsorbentes, es de gran importancia, para incrementar la concentración de etanol en el licor resultante de la fermentación y disminuir los costos de obtención. Los hidrogeles preparados a partir de acrilamida son capaces de absorber entre 15 a 40 gramos de agua por cada gramo de xerogel, dependiendo de la cantidad de agua y de agente entrecruzante presente en la mezcla inicial de la reacción.…”

Section: Introductionunclassified

Hidrogeles microestructurados de acrilamida y determinación de su capacidad de absorber agua y etanol

Ortega¹

2013

Quím. Nova

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Recebido em 28/3/12; aceito em 14/2/13; publicado na web em 15/4/13 NANOSTRUCTURED HYDROGELS OF ACRYLAMIDE AND DETERMINING THEIR ABILITY TO ABSORB WATER AND ETHANOL. This paper reports the synthesis of nanostructured hydrogels of acrylamide by a two-step polymerisation process. The first step is performed by inverse microemulsion polymerization (water-in-oil) of N-isopropylacrylamide (NIPA), with these particles then added to aqueous solutions of acrylamide (AM), adding a crosslinking agent. The polymerization reaction is then initiated, thereby producing nanostructured hydrogels. We determined the capacity to absorb water, water and / or ethanol when nanostructured hydrogels were immersed in aqueous solutions with different concentrations of ethanol. It was found that the hydrogels were selective in absorbing water in all cases increasing with the ethanol concentration of the solutions.Keywords: acrylamide; ethanol; hydrogels. INTRODUCCIÓNCon la necesidad de nuevos combustibles, se ha estudiado la posibilidad de utilizar etanol o mezclándolo en diferentes proporciones con gasolina. Hoy en día se utilizan tres tipos de materias primas para la producción a gran escala de etanol de origen biológico (bioetanol): Substancias con alto contenido de sacarosa, caña de azúcar, remolacha, melazas, sorgo dulce, Sustancias con alto contenido de almidón, maíz, patata, yuca, Substancias con alto contenido de celulosa, madera, residuos agrícolas, 1-6 para obtener alcohol que pueda ser utilizado como biocombustible debe de ser purificado mediante procesos de destilación, 4,5 es por ello que el presente trabajo pretende la purificación del licor de fermentación, mediante el uso hidrogeles de acrilamida que tienen la capacidad de absorber agua y no absorben etanol, 7 se necesitan hidrogeles que sean capaces de absorber grandes cantidades de agua, para realizar un proceso previo de remoción de agua, logrando incrementar la concentración de etanol de las soluciones acuosas, por lo que la síntesis de hidrogeles de acrilamida superabsorbentes, es de gran importancia, para incrementar la concentración de etanol en el licor resultante de la fermentación y disminuir los costos de obtención. Los hidrogeles preparados a partir de acrilamida son capaces de absorber entre 15 a 40 gramos de agua por cada gramo de xerogel, dependiendo de la cantidad de agua y de agente entrecruzante presente en la mezcla inicial de la reacción. 7,8 Se ha encontrado que la adición de nanoparticulas a matrices poliméricas, incrementa la capacidad de absorber agua de estos materiales hasta en un 250%.7-9 Por lo que en este trabajo se sintetizaron hidrogeles microestructurados de acrilamida, con partí-culas de n-isopropilacrilamida, estos hidrogeles fueron preparados en dos etapas, en la primera de ellas las partículas fueron sintetizadas mediante reacción de polimerización en microemulsión inversa, en una segunda etapa se prepararon soluciones acuosas al 10% de acrilamida, adicionando las partículas, con 1% de agente entrecruzante, iniciador y acelerador con re...

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Ethanol production from Ferula communis

Polycarpou

2012

Biomass and Bioenergy

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Bioethanol production from Asphodelus aestivus

Cited by 10 publications

References 2 publications

Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis

Bioethanol Production from Iles-Iles (Amorphopallus campanulatus) Flour by Fermentation using Zymomonas mobilis

Hidrogeles microestructurados de acrilamida y determinación de su capacidad de absorber agua y etanol

Ethanol production from Ferula communis

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