Effects of changes in chemical and structural characteristic of ammonia fibre expansion (AFEX) pretreated oil palm empty fruit bunch fibre on enzymatic saccharification and fermentability for biohydrogen

Abdul, Peer Mohamed; Jahim, Jamaliah Md; Harun, Shuhaida; Markom, Masturah; Lutpi, Nabilah Aminah; Hassan, Osman; Balan, Venkatesh; Dale, Bruce E.; Nor, Mohd Tusirin Mohd

doi:10.1016/j.biortech.2016.02.135

Cited by 103 publications

(46 citation statements)

References 27 publications

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“…All treated samples with combination of FCT + 5% urea did not show the peaks of wavenumber at 1,800 and 1,200 cm -1 . Disappearance of peaks at approximately 1,800 and 1,200 cm -1 shows degradation of lignocellulose complex since these peaks are regarded as carboxylic and carbonyl bonds, respectively, that part of intermolecular ester bonds between carbohydrates and lignin complex (Abdul et al, 2016). Higher IVDMD and IVOMD of agricultural and plantation residues after being treated with FCT + 5% urea is apparently due to lignocellulose degradation during the process; the treatment is able to cleave the bonds between lignin and cellulose to result simpler forms of carbohydrates.…”

Section: Discussionmentioning

confidence: 99%

Increasing the Quality of Agricultural and Plantation Residues using Combination of Fiber Cracking Technology and Urea for Ruminant Feeds

Dewi

Ridla

Laconi

et al. 2018

Trop. Anim. Sci. J.

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This experiment aimed to evaluate the decrease of the fiber fraction of some agricultural and plantation residues after being treated with Fiber Cracking Technology (FCT) and urea. The residues included rice straw, oil palm frond (OPF), oil palm empty fruit bunch (OPEFB), cocoa pod and coffee husk. They were added with 5% urea and incubated in FCT at temperature 135 o C and pressure 2.3 atm for 2.5 h. The experimental treatments were arranged as a factorial design 5 × 2, in which the first factor was various agricultural and plantation residues (rice straw, OPF, OPEFB, cocoa pod and coffee husk) and the second factor was FCT application (untreated and treated with FCT + 5% urea), performed in 4 replicates. All treatments were subjected to Van Soest analysis and in vitro digestibility test. The decrease of fiber fraction was confirmed with Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR) methods. Results showed that FCT + 5% urea treatment decreased NDF, ADF, cellulose and lignin contents of all samples (P<0.05), and increased IVDMD and IVOMD in comparison to untreated samples (P<0.05). However, the treatment did not alter in vitro methane gas production and VFA profiles of the samples. Analyses using SEM, XRD and FTIR revealed that FCT + 5% urea treatment demolished cell wall component, decreased crystallinity index and cleaved fiber bonds. It was concluded that combination between FCT and urea 5% effectively enhances the quality of some fibrous feed materials.

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Section: Discussionmentioning

confidence: 99%

Increasing the Quality of Agricultural and Plantation Residues using Combination of Fiber Cracking Technology and Urea for Ruminant Feeds

Dewi

Ridla

Laconi

et al. 2018

Trop. Anim. Sci. J.

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“…Indeed, the significance of the type(s) of biomass being processed via a specific biohydrogen production route and the specific reaction conditions imposed are high since there are different effects on the whole process of biohydrogen synthesis ( Table 1). In point of fact, several research efforts and findings have demonstrated that when lignocellulosic biomass materials are assessed for their individual biohydrogen production potential, there is practically always the need to perform some singular or combined type of biological, chemical or physical pretreatment (Nguyen et al, 2010;Al Shorgani et al, 2014;Diaz et al, 2015;Ibrahim et al, 2015;Gonzales et al, 2016;Abdul et al, 2016;Sen et al, 2016;Senturk and Buyukgungor, 2017;Eskicioglu et al, 2017;Rafieenia et al, 2017). Hence, by reason of the very complexity, variations in chemical properties and structural morphologies of the different biomass types, imposing some form of pretreatment on the biomass has become extremely important before the optimum kinetics of the intended downstream processing (Ding et al, 2016;Singhal and Singh, 2014).…”

Section: Green Biomass Pretreatment Schemesmentioning

confidence: 99%

A review of research trends in the enhancement of biomass-to-hydrogen conversion

et al. 2018

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Different types of biomass are being examined for their optimum hydrogen production potentials and actual hydrogen yields in different experimental setups and through different chemical synthetic routes. In this review, the observations emanating from research findings on the assessment of hydrogen synthesis kinetics during fermentation and gasification of different types of biomass substrates have been concisely surveyed from selected publications. This review revisits the recent progress reported in biomass-based hydrogen synthesis in the 2 associated disciplines of microbial cell immobilization, bioreactor design and analysis, ultrasound-assisted, microwave-assisted and ionic liquid-assisted biomass pretreatments, development of new microbial strains, integrated production schemes, applications of nanocatalysis, subcritical and supercritical water processing, use of algae-based substrates and lastly inhibitor detoxification. The main observations from this review are that cell immobilization assists in optimizing the biomass fermentation performance by enhancing bead size, providing for adequate cell loading and improving mass transfer; there are novel and more potent bacterial and fungal strains which improve the fermentation process and impact on hydrogen yields positively; application of microwave irradiation and sonication and the use of ionic liquids in biomass pretreatment bring about enhanced delignification, and that supercritical water biomass processing and dosing with metal-based nanoparticles also assist in enhancing the kinetics of hydrogen synthesis. The research areas discussed in this work and their respective impacts on hydrogen synthesis from biomass are arguably standalone. Thence, further work is still required to explore the possibilities and techno-economic implications of combining these areas for developing robust and integrated biomass-to-hydrogen synthetic schemes.

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“…Malaysia is one of the world's largest producers of palm oil products and generated a significant amount of agricultural by-products annually, such as empty fruit bunch (EFB). It is estimated that 15 million tons of EFB is produced annually in Malaysia (Abdul et al, 2016). Current practices for managing EFB as an agricultural waste is by utilising it as mulch and fertiliser for soil conditioning (Abdul et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…It is estimated that 15 million tons of EFB is produced annually in Malaysia (Abdul et al, 2016). Current practices for managing EFB as an agricultural waste is by utilising it as mulch and fertiliser for soil conditioning (Abdul et al, 2016). However, direct application alone could not solve the problem of overabundance of EFB.…”

Section: Introductionmentioning

confidence: 99%

“…In some cases EFB is incinerated to provide energy for boilers but incineration process could cause air pollution. There are also some studies looking into the potential use of EFB for sugar (Abdul et al, 2016) and bioethanol production (Sugiharto et al, 2016). However, more than often EFB are left to be naturally degraded on site, causing breeding of rhinoceros beetles and rats (Lim et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Empty Fruit Bunches Compost and Germination of Raphanus sativs L.

Wahi¹,

Yusup²

2016

BJRST

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Overabundance of empty fruit bunches (EFB) from palm oil industries has opened opportunity for its exploitationfor agricultural use as compost. In this study, palm oil EFB compost was prepared by the addition of wood chipsas a bulking agent and chicken manure to enhance the composting rate. Moisture was maintained at 50-70%during the 2-month composting. Results showed that the EFB compost containing high mineralisation indexcompared to the initial EFB samples after two months of the composting process. The important macronutrients;N, P, K, Ca and Mg and micronutrients Fe, Zn, Mn, Ni, Cu and B were found present in the EFB composts. Thefinal stage of EFB compost B showed high nutrient content with N, P, and K values of 2.21%, 3.65%, and 0.49%,respectively. Fe was the most outstanding element in the EFB compost as high as 9000 ppm. Germination resultsshowed that EFB compost with EFB:wood chips at 1:3 ratio exhibited better growth of leaves and root ofRaphanus sativs L. compared to 1:2 ratio. This indicated that the EFB compost is capable in improving soilfertility and growth of plants.

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Effects of changes in chemical and structural characteristic of ammonia fibre expansion (AFEX) pretreated oil palm empty fruit bunch fibre on enzymatic saccharification and fermentability for biohydrogen

Cited by 103 publications

References 27 publications

Increasing the Quality of Agricultural and Plantation Residues using Combination of Fiber Cracking Technology and Urea for Ruminant Feeds

Increasing the Quality of Agricultural and Plantation Residues using Combination of Fiber Cracking Technology and Urea for Ruminant Feeds

A review of research trends in the enhancement of biomass-to-hydrogen conversion

Empty Fruit Bunches Compost and Germination of Raphanus sativs L.

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