Optimization of furfural production from hemicellulose extracted from delignified palm pressed fiber using a two-stage process

Riansa-ngawong, Wiboon; Prasertsan, Poonsuk

doi:10.1016/j.carres.2010.10.009

Cited by 68 publications

(40 citation statements)

References 31 publications

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“…The provided PPF was then sun-dried, and milled by the method described in Riansa-ngawong and Prasertsan (2010); Riansa-ngawong and Prasertsan (2011). Briefly, PPF particles were screened by passing through the mesh sieve (Fritsch 35 mesh ASTM analytical sieve, Germany) to obtain the diameter of < 0.5 mm for small PPF particles (sPPF) after the milling process.…”

Section: Raw Materials Pre-treatmentmentioning

confidence: 99%

“…In 2010, the production of PPF in Thailand amassed large quantities equalling 1.08 million ton per year, which was converted from 5.3 million ton oil palm fruit per year using a factor of 0.12 as described in Prasertsan and Sajjahulnukit (2006). Technology for utilization of PPF in bioethanol production has been developed (Riansa-ngawong and Prasertsan, 2010;Riansa-ngawong and Prasertsan, 2011). However, the remaining PPF and delignified PPF after hydrolysis were found in a significant quantity.…”

Section: Introductionmentioning

confidence: 98%

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Application of palm pressed fiber as a carrier for ethanol production by Candida shehatae TISTR5843

Riansa-ngawong¹,

Suwansaard²,

Prasertsan³

2012

Electron. J. Biotechnol.

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Palm pressed fiber (PPF) is a clean and renewable lignocellulosic material. The PPF and delignified PPF (DPPF) were used as a carrier for immobilization of Candida shehatae TISTR5843 in bioethanol production. PPF was pre-treated by milling to obtain small particles, whereas DPPF was the delignification of PPF using NaClO2. C. shehatae TISTR5843 was grown in modified yeast extractmalt (YM) medium at 30 ± 2ºC on an orbital shaker at 150 rpm for batch and repeated batch fermentation. In the batch system, immobilized cells on a small size, less than 0.5 mm, of DPPF (sDPPF) gave the maximum ethanol production of 11.5 g L -1 at 24 hrs cultivation period. The ethanol concentration and ethanol yield of sDPPF were 6.2% and 6.8% higher (ethanol production 11.5 g L -1 , ethanol yield 0.47 g g -1 ) than those of free cells (ethanol production 10.8 g L -1 , ethanol yield 0.44 g g -1 ) after 36 hrs of cultivation. In contrast, the small size of PPF (sPPF) was selected as a carrier in repeated batch fermentation for cost effectiveness. The ethanol productivity of immobilized yeast cells in repeated batch fermentations was 45.2-51.6% greater than that obtained from batch fermentations. The immobilized cells on sPPF improved the ethanol production and could be reused 4 times with retaining the activity of 93%. In conclusion, PPF is a potential carrier in the immobilization system. The pre-treatment of PPF increases the surface area that enhances cell adsorption and ethanol production by C. shehatae TISTR5843.

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Section: Raw Materials Pre-treatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Application of palm pressed fiber as a carrier for ethanol production by Candida shehatae TISTR5843

Riansa-ngawong¹,

Suwansaard²,

Prasertsan³

2012

Electron. J. Biotechnol.

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“…Therefore, the utilization of rubberwood waste as filler in polymer composites is great interest, which decreases environmental impacts and increases value of waste. In addition, oil palm mesocarp fiber is the waste obtained after pressing the palm fruits from palm oil mill, and approximate 11 % of oil palm mesocarp fiber is generated from the palm fruits after the oil extraction [13,14]. Therefore, alternative disposal methods are essential to overcome the abundant amount of oil palm mesocarp fiber produced in the mills each month [15].…”

Section: Introductionmentioning

confidence: 99%

Influence of wood species and particle size on mechanical and thermal properties of wood polypropylene composites

et al. 2014

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This study aims to investigate the effects of two types of wood flour; oil palm mesocarp flour (OMF) and rubberwood flour (RWF), and their particle sizes on mechanical, physical, and thermal properties of wood flour reinforced recycled polypropylene (rPP) composites. The composite materials were manufactured into panels by using a twin-screw extruder. The rPP composites based on RWF significantly showed higher flexural, tensile, and compressive properties (both strength and modulus) as well as hardness and thermal stability than those composites based on OMF for the same particle sizes. However, distribution of RWF in the rPP matrix was less homogeneous than that of the rPP/OMF composites. Furthermore, a decrease of the particle sizes of filler for the rPP/OMF or RWF composites increased the flexural, tensile, compressive, and hardness properties. Likewise, the thermal stability of both OMF and RWF composites were insignificantly affected by the particle sizes.

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“…[35][36][37] Also from Figures 5 and 6, there was a distinct trend that, with the increase of acid concentration, the glucose yield in the hydrolysate was increased from 3.15% at 0.75% acid concentration to 6.89% at 1.5% acid concentration. Because of the relationship between acid concentration and the rate of xylose production and its degradation, it could be seen from Table III that, with the increase of acid concentration, furfural yield also increased, which was detrimental to the fermentable sugar fermentation.…”

Section: -6mentioning

confidence: 84%

Acid pretreatment of bagasse pith at low temperature with steam-assisted heating

Bianfang

Zhang

Wang

et al. 2013

Journal of Renewable and Sustainable Energy

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In this paper, dilute acid pretreatment of bagasse pith was investigated at low temperature. Process parameters varied including mass ratio of liquid to solid (r ¼ 6:1-12:1 l/kg), reaction temperature (T ¼ 100 C-130 C), and acid concentration (c ¼ 0.75 wt. %-1.5 wt. %) in order to effectively transform hemicellulose to fermentable sugar to improve the utilization of bagasse pith. The effects of dilute acid pretreatment were evaluated by fermentable sugar yield and decomposition products concentration. The optimum pretreatment conditions for depolymerization of hemicellulose bagasse pith was obtained at r ¼ 10:1 l/kg, T ¼ 120 C, c ¼ 1.0 wt. %, t ¼ 16 min. From this paper, it could be concluded that dilute acid pretreatment can be successfully applied to bagasse pith to achieve high yield of xylose (84.41%) with acceptable levels of fermentation inhibitors formation. V C 2013 AIP Publishing LLC. [http://dx.

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Optimization of furfural production from hemicellulose extracted from delignified palm pressed fiber using a two-stage process

Cited by 68 publications

References 31 publications

Application of palm pressed fiber as a carrier for ethanol production by Candida shehatae TISTR5843

Application of palm pressed fiber as a carrier for ethanol production by Candida shehatae TISTR5843

Influence of wood species and particle size on mechanical and thermal properties of wood polypropylene composites

Acid pretreatment of bagasse pith at low temperature with steam-assisted heating

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