Production of ethanol from the hemicellulosic fraction of sunflower meal biomass

Camargo, Danielle; Sene, Luciane

doi:10.1007/s13399-013-0096-0

Cited by 18 publications

(11 citation statements)

References 33 publications

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“…Similarly to that observed for xylose, the condition 12 (pH 5, 38 o C, 150 rpm) had strong negative influence on the consumption of glucose. Arabinose concentrations remained unaltered in most of the tests (data not shown), similar to an observation related in a previous work carried out with S. stipitis ATCC 58376 grown in sunflower meal hemicellulosic hydrolysate (Camargo & Sene, 2014).…”

Section: Methodssupporting

confidence: 91%

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Valorization of sunflower meal through the production of ethanol from the hemicellulosic fraction

Tavares

Sene

Christ

2016

Rev. bras. eng. agríc. ambient.

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A B S T R A C TSunflower is among the major oil seeds crop grown in the world and the by-products generated during the seeds processing represent an attractive source of lignocellulosic biomass for bioprocesses. The conversion of lignocellulosic fibers into fermentable sugars has been considered as a promising alternative to increase the demand for ethanol. The present study aimed to establish the fermentation conditions for ethanol production by Scheffersomyces stipitis ATCC 58376 in sunflower meal hemicellulosic hydrolysate, through a 2 3 CCRD (Central Composite Rotational Design) factorial design. Under the selected conditions (pH 5.25, 29 ºC and 198 rpm) the final ethanol concentration was 13.92 g L -1 and the ethanol yield was 0.49 g g -1 .Valorização do farelo de girassol através da produção de etanol a partir da fração hemicelulósica R E S U M O O girassol está entre as principais oleaginosas cultivadas no mundo e os subprodutos gerados durante o processamento das sementes representam uma fonte atraente de biomassa lignocelulósica para bioprocessos. A conversão de fibras lignocelulósicas em açúcares fermentáveis tem sido considerada uma alternativa promissora para aumentar a demanda de etanol. O presente estudo teve, como objetivo, estabelecer as condições de fermentação para a produção de etanol por Scheffersomyces stipitis ATCC 58376 em hidrolisado hemicelulósico de farelo de girassol através de um planejamento fatorial DCCR 2 3 . Sob as condições selecionadas (pH 5,25, 29 ºC e 198 rpm) a concentração final de etanol foi 13,92 g L -1 e o rendimento 0,49 g g -1 .

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Section: Methodssupporting

confidence: 91%

“…Characterization of sunflower meal (Caramuru Alimentos, Itumbiara-GO, Brazil), dilute acid hydrolysis of the hemicellulosic fraction (6% w v -1 H 2 SO 4 , 121 °C, 20 min) and hydrolysate detoxification (pH adjustment followed by adsorption with activated charcoal) were performed according to Camargo & Sene (2014).…”

Section: Methodsmentioning

confidence: 99%

Valorization of sunflower meal through the production of ethanol from the hemicellulosic fraction

Tavares

Sene

Christ

2016

Rev. bras. eng. agríc. ambient.

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“…A similar amount of xylitol (0.81 g/L) and 17.7 g/L ethanol were observed in the fermentation of S. stipitis Y-7124 with an initial xylose concentration of 50 g/L (Lee et al, 2000). Higher xylitol concentrations (1.48 g/L) were obtained during the fermentation of hemicellulose hydrolysate from sunflower meal (20.66 g/L glucose and 24.09 g/L xylose) by the same yeast strain used in this study (Camargo and Sene, 2014). Xylitol formation and its accumulation in the medium are attributed to a cellular response to environmental adversities such as redox imbalance caused under oxygen limitation, high substrate concentration, or the presence of inhibitors that may be generated during pre-treatment, especially under high severity conditions of hydrolysis (Betancur and Pereira, 2010).…”

Section: Fermentability Of Sorghum Bagasse Hemicellulosic Hydrolysatesupporting

confidence: 51%

“…The maximum ethanol yield Y P/S (12.40 g/g) and volumetric productivity Qp (0.34 g/L.h) obtained in this study after 55 hours of fermentation are comparable or even higher than those found in the literature for ethanol production in hemicellulosic hydrolysates of different materials. For example, when the same yeast strain used in this study was grown in sunflower meal hemicellulosic hydrolysate, the maximum Y P/S obtained was 0.23 g/g and Q P 0.12 g/L.h (Camargo and Sene, 2014). Ethanol production by S. stipitis DSM 3651 in sugarcane bagasse hemicellulosic hydrolysate resulted in Y P/S 0.30 g/g and Q P 0.16 g/L.h (Canilha et al, 2010).…”

Section: Fermentability Of Sorghum Bagasse Hemicellulosic Hydrolysatementioning

confidence: 77%

Dilute Acid Hydrolysis of Sweet Sorghum Bagasse and Fermentability of the Hemicellulosic Hydrolysate

Camargo

Sydney

Leonel

et al. 2019

Braz. J. Chem. Eng.

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This study aimed to determine the best dilute acid hydrolysis condition for the hemicellulosic fraction of sweet sorghum bagasse for ethanol production by Scheffersomyces stipitis. The experiment followed a 2 3 factorial design with four central points, and had as variables: sulfuric acid concentration, temperature and hydrolysis time. Sorghum bagasse presented the following chemical composition: 24.77% of lignin, 31.28% of hemicellulose and 34.80% of cellulose. The hydrolysis that resulted in the highest sugars concentration (14.22 g/L of xylose and 2.42 g/L glucose) was 1.75% H 2 SO 4 , 121 ºC and 40 minutes. This same condition provided low concentrations of toxic compounds (1.34 g/L of acetic acid, 0.90 g/L of phenol; 124.54 mg/L of hydroxymethylfurfural (HMF) and 978 mg/L of furfural). The fermentation of the hemicellulose-derived sugars by S. stiptis resulted in 22 g/L of ethanol, Y P/S 0.40 g/g and Qp 0.34 g/L.h.

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“…No data regarding the benzene-ethanol extractive content of this particular biomass was found. However, the extractive content of the sunflower seed hulls varies between 0%-5.3% [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Gasification of sunflower seed pulp for the synthesis of hydrogen-rich products

Kanatlı¹,

Ayas²

2019

IJSGCE

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Gasification of biomass has great potential for satisfying the ever-growing demand for a clean and renewable energy source. In this study, sunflower seed pulp, a waste product of sunflower oil factories, was gasified using K 2 CO 3 as a catalyst and dry air as a gasifying agent. Effects of reaction temperature, dry air flow rate and catalyst ratio on the gas product composition were investigated. The highest hydrogen yield (5.45 mol/kg biomass) was achieved at 750 °C, with the addition of 20 wt.% K 2 CO 3 and with a dry air flow rate of 3 L/h.

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Production of ethanol from the hemicellulosic fraction of sunflower meal biomass

Cited by 18 publications

References 33 publications

Valorization of sunflower meal through the production of ethanol from the hemicellulosic fraction

Valorization of sunflower meal through the production of ethanol from the hemicellulosic fraction

Dilute Acid Hydrolysis of Sweet Sorghum Bagasse and Fermentability of the Hemicellulosic Hydrolysate

Gasification of sunflower seed pulp for the synthesis of hydrogen-rich products

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