Enhancement of batch biohydrogen production from prehydrolysate of acid treated oil palm empty fruit bunch

Chong, Poh She; Jahim, Jamaliah Md; Harun, Shuhaida; Lim, Swee Su; Mutalib, Sahilah Abd.; Hassan, Osman; Nor, Mohd Tusirin Mohd

doi:10.1016/j.ijhydene.2013.01.154

Cited by 81 publications

(28 citation statements)

References 50 publications

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“…Chemical composition of untreated EFB fiber for cellulose, hemicellulose and Klason lignin were 36.7%, 22.8%, and 24.2%, respectively. The cellulose, hemicellulose and lignin content in untreated EFB fiber were similar to that reported by Chong et al who studied the chemical composition of EFB [8]. These results proved that more than 30% -50% of EFB component is cellulose, followed by hemicellulose 20% -30% and lignin 15% -20% of the overall components in biomass [4,19].…”

Section: Results and Discussion Effect Of Various Pretreatments On Chsupporting

confidence: 84%

“…Chemical pretreatments using acid and alkaline have been claimed as a potential technique for lignocellulose degradation [7]. Acid pretreatment is one of the most extensively studied pretreatment methods that results in hydrolyzes hemicellulose from lignocellulose [8]. Alkaline pretreatment disrupts the cell wall by breaking down the α-ether linkages between lignin and/or hemicelluloses and solubilized thus increasing the enzymatic digestibility of cellulose [9].…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Various Pretreatment Methods on Empty Fruit Bunch for Glucose Production

Hamzah

Markom²,

Harun³

et al. 2016

MJAS

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In this study, a pretreatment of empty fruit bunch (EFB) using supercritical carbon dioxide (SC-CO 2 ), acid and alkaline were investigated for glucose yield from enzymatic hydrolysis. The chemical composition, X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) analysis of EFB before and after pretreatment were determined. From this study, the chemical composition of EFB (% g/g dry biomass) before pretreatment for cellulose, hemicellulose and Klason lignin were recorded as 36.7%, 22.8%, and 24.2%, respectively. After pretreatment, the highest cellulose composition was obtained from EFB treated with alkaline followed by acid and SC-CO 2 which gave the results of 48.5%, 47.7% and 38% respectively. The glucose yield after enzymatic hydrolysis for untreated EFB was 17% (w/w). After pretreatment, the glucose yield increased to 84.4%, 34% and 24% for alkaline, acid and SC-CO 2 of the treated EFB, respectively. Other than that, XRD analysis showed increase in the crystallinity index after each pretreatment. Morphology analysis showed the surface of the treated EFB looked swollen and ruptured as compared with the surface of the untreated EFB. Between the three pretreatments, alkaline pretreatment gives the highest cellulose composition and glucose yield. Thus, it shows that alkaline pretreatment was the best pretreatment method on EFB compared to acid and SC-CO 2 pretreatments.Keywords: empty fruit bunches, enzymatic hydrolysis, pretreatment, glucose Abstrak Melalui kajian ini prarawatan tandan buah kosong (TKKS) menggunakan kaedah supergenting karbon dioksida (SC-CO 2 ), asid dan alkali telah dilakukan untuk mendapatkan hasil glukosa daripada hidrolisis berenzim. Analisis komposisi kimia, pembelauan sinar-X (XRD) dan mikroskopi pemgimbasan elektron (SEM) terhadap TKKS sebelum dan selepas prarawatan telah ditentukan. Dari kajian ini komposisi kimia TKKS (% g/g biomas kering) sebelum prarawatan bagi selulosa, hemiselulosa dan lignin ialah 36.7%, 22.8%, and 24.2%. Selepas prarawatan, komposisi selulosa yang paling tinggi diperolehi daripada TKKS terawat dengan prarawatan alkali diikuti dengan prarawatan asid dan SC-CO 2 iaitu 48.5%, 47.7% dan 38%. Hasil glukosa selepas hidrolisis berenzim bagi TKKS yang tidak terawat ialah 17% (w/w). Selepas prarawatan, hasil glukosa telah meningkat kepada 84.4%, 34% dan 24% bagi prarawatan alkali, asid dan SC-CO 2 . Selain daripada itu, analisis XRD menunjukkan peningkatan indeks penghabluran terhadap TKKS terawat. Analisis morfologi menunjukkan perubahan pada permukaan TKKS terawat dimana ia kelihatan bengkak dan pecah berbanding dengan permukaan TKKS yang tidak terawat. Antara ketiga-tiga kaedah prarawatan, prarawatan alkali memberikan komposisi selulosa dan hasil glukosa yang paling tinggi. Oleh itu, kajian ini menunjukkan bahawa prarawatan alkali adalah kaedah prarawatan terbaik terhadap TKKS berbanding prarawatan asid dan SC-CO 2 .Kata kunci: tandan kosong kelapa sawit, hidrolisis berenzim, prarawatan, glukosa

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Section: Results and Discussion Effect Of Various Pretreatments On Chsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

The Effect of Various Pretreatment Methods on Empty Fruit Bunch for Glucose Production

Hamzah

Markom²,

Harun³

et al. 2016

MJAS

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“…Currently, a number of studies have been conducted by different researchers on the 'zero waste' concept (Zaman 2013a). In Malaysia, several different approaches have been attempted to explore the potentials for reusing empty fruit bunches as main feedstocks or substrates to produce activated carbon (Firoozian et al 2011), bioethanol (Abu Bakar et al 2012), biohydrogen (Chong et al 2013), bio-oil (Abdullah et al 2010), biochar (Samsuri et al 2014), citric acid (Alam et al 2010), composite (Bakar et al 2010), lignophenol (Abdullah et al 2009), xylose (Tan et al 2013) and others. As empty fruit bunches contain high organic matter and mineral contents, these wastes are also currently being investigated as potential feedstocks in composting (Kananam et al 2011;Mohammad et al 2013).…”

Section: Introductionmentioning

confidence: 99%

A potential bioconversion of empty fruit bunches into organic fertilizer using Eudrilus eugeniae

Lim

Clarke

et al. 2014

Int. J. Environ. Sci. Technol.

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Vermicomposting is a process to biotransform organic solid wastes into valuable product, namely vermicompost using epigeic earthworms. Vermicomposting technology may provide a low-input basis for sustainable management of organic solid waste. The present study was to investigate the suitability of oil palm empty fruit bunches to be reused as feedstocks of Eudrilus eugeniae for the duration of 12 weeks. Empty fruit bunches were mixed with cow dung in different ratios to produce five different treatments for laboratory screening of solid waste. The growths of E. eugeniae were monitored weekly. All treatments encouraged the growth of E. eugeniae except the treatment with empty fruit bunches alone. The maturity and quality of vermicompost were assessed through carbon-tonitrogen ratio, calcium, phosphorus, potassium and magnesium. Generally, all treatments showed increases in total contents of calcium (39.38-373.17 %), phosphorus (15.15-390.54 %), potassium (45.55-153.66 %) and magnesium (55.86-370.93 %) but a decrease in carbon-tonitrogen ratio (11.24-76.24 %) after 12 weeks of vermicomposting process. Besides, parameters such as pH and electrical conductivity were also investigated in this paper.Among all the treatments investigated, empty fruit bunches that were mixed with cow dung in the ratio of 2:1 were biotransformed into the most superior quality vermicompost (carbon-to-nitrogen ratio, 18.53; calcium, 7.76 g/kg; phosphorus, 3.63 g/kg; potassium, 12.81 g/kg; and magnesium, 4.05 g/kg). In conclusion, vermicomposting could be used as an efficient technology to convert empty fruit bunches into nutrient-rich organic fertilizers if the wastes were mixed with cow dung in an appropriate ratio.

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“…At elevated temperature will bring about lower pH in solvent, enabling the release of O-acetyl, acetic and uronic acids from hemicellulose [10]. However, this compound is known as a toxic compound that could inhibit the microbial growth in subsequent biological conversion process as stated by Chong et al [11]. To further verify the optimum reaction temperature, a ±5°C from 175°C was studied.…”

Section: Resultsmentioning

confidence: 99%

Hydrothermal pre-treatment of oil palm empty fruit bunch into fermentable sugars

Ali

Tamunaidu

Aslan

et al. 2016

IOP Conf. Ser.: Earth Environ. Sci.

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Enhancement of batch biohydrogen production from prehydrolysate of acid treated oil palm empty fruit bunch

Cited by 81 publications

References 50 publications

The Effect of Various Pretreatment Methods on Empty Fruit Bunch for Glucose Production

The Effect of Various Pretreatment Methods on Empty Fruit Bunch for Glucose Production

A potential bioconversion of empty fruit bunches into organic fertilizer using Eudrilus eugeniae

Hydrothermal pre-treatment of oil palm empty fruit bunch into fermentable sugars

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