scholarly journals Effect of steam explosion of oil palm frond and empty fruit bunch on nutrient composition and ruminal fermentation characteristics

2019 ◽  
Vol 52 (3) ◽  
pp. 1223-1228
Author(s):  
Hao Wu ◽  
Zhenming Zhou ◽  
Yuanlong Yang ◽  
Qingxiang Meng
Keyword(s):  
Oil Palm ◽  
Steam Explosion ◽  
Gas Production ◽  
Nutrient Composition ◽  
Empty Fruit Bunch ◽  
Ruminal Fermentation ◽  
Hemicellulose Content ◽  
Oil Palm Frond ◽  
Palm Frond

Abstract In this study, we evaluated the effect of steam explosion of oil palm frond (OPF) and oil palm empty fruit bunch (EFB) on nutrient composition and ruminal fermentation characteristics in vitro. The results showed that steam explosion decreased NDF (P < 0.01), ADF (P < 0.01), and hemicellulose content (P < 0.01) in OPF and EFB. Steam explosion improved the effective energy value of OPF and EFB. In vitro fermentation results revealed that 72-h gas production capacity of OPF and EFB increased by 12.60and 85.06% (P < 0.01), respectively, after steam explosion. Steam explosion had a tendency to improve the concentration of total volatile fatty acids (TVFA) (P = 0.082). In conclusion, steam explosion of OPF and EFB reduced NDF, ADF, and hemicellulose content and increased gas production and TVFA concentration.

Fractionation of oil palm frond hemicelluloses by water or alkaline impregnation and steam explosion

2015 ◽  
Vol 115 ◽  
pp. 533-539 ◽  
Author(s):  
Saleh Sabiha-Hanim ◽  
Mohd Azemi Mohd Noor ◽  
Ahmad Rosma
Keyword(s):  
Oil Palm ◽  
Steam Explosion ◽  
Oil Palm Frond ◽  
Palm Frond

scholarly journals Acoustic Properties of Mixing Empty Fruit Bunch and Oil Palm Frond Natural Fibres

2019 ◽  
Vol 8 (4) ◽  
pp. 6347-6349
Keyword(s):  
Oil Palm ◽  
Sound Absorption ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Acoustic Properties ◽  
Empty Fruit Bunch ◽  
Frequency Range ◽  
Oil Palm Frond ◽  
Impedance Tube Method ◽  
Palm Frond

Natural fibre is being studied and used as sound absorber for its promising acoustic properties. For instance, Germany have commercial plants that are producing sound absorbers from natural fibre. Natural fibre is eco-friendly and has no effect on human health. Besides that, the production cost of natural fibre is cheaper than synthetic fibre. This research reported the thickness effects on acoustic properties in different ratios of natural fibres of empty fruit bunch (EFB) and oil palm frond (OPF). Four different thickness of low density fibre board (LDF) have been fabricated (12 mm, 14 mm, 16 mm and 18 mm) in density of 120 kg/m3 . The Sound Absorption Coefficient (SAC) was tested by using the Impedance Tube Method (ITM) according to ASTM E1050-98 standards at frequency from 0 Hz to 6400 Hz. The results show the values of SAC for all samples increase with increasing in thickness from frequency range of 0 Hz – 4500 Hz. It is noteworthy that the LDF with thickness of 16 mm and 18 mm can be classified as Class A sound absorbing material according to sound absorption classes and possess the SAC values of 0.8 and above at a wider frequency range, which is 2500 Hz to 6400 Hz. The combination of EFP and OPF natural fibres has a very promising and excellent performance in acoustic properties.

scholarly journals Investigate of wave absorption performance for oil palm frond and empty fruit bunch at 5.8 GHz

2018 ◽  
Vol 9 (3S) ◽  
pp. 335
Author(s):  
E. Baharudin ◽  
A. Ismail ◽  
A.R.H. Alhawari ◽  
E.S. Zainudin ◽  
D.L.A.A. Majid ◽  
...  
Keyword(s):  
Oil Palm ◽  
Empty Fruit Bunch ◽  
Wave Absorption ◽  
Oil Palm Frond ◽  
Absorption Performance ◽  
Palm Frond

scholarly journals Acoustic properties of different blending ratios of empty fruit bunch and oil palm frond

2021 ◽  
Vol 1078 (1) ◽  
pp. 012005
Author(s):  
L S Ewe ◽  
Mohammad Nazhan Nasir ◽  
W K Yew ◽  
R Mageswaran ◽  
Zawawi Ibrahim
Keyword(s):  
Oil Palm ◽  
Acoustic Properties ◽  
Empty Fruit Bunch ◽  
Oil Palm Frond ◽  
Palm Frond

scholarly journals Utilization of Gamma Irradiated Aspergillus niger to Improve Oil Palm by-Product Digestibility

2018 ◽  
Vol 42 (1) ◽  
Author(s):  
Teguh Wahyono ◽  
Nana Mulyana ◽  
Putri Amanda ◽  
Siti Nurbayti ◽  
Suharyono Soharyono
Keyword(s):  
Oil Palm ◽  
Fermentation Process ◽  
Rumen Fermentation ◽  
Gas Production ◽  
Randomized Design ◽  
Gamma Irradiated ◽  
Palm Fronds ◽  
By Products ◽  
Palm Frond

This study was conducted to determine the effect of fermentation using irradiated A. Niger on in vitro rumen fermentation characteristics of oil palm by-products. Completely randomized design with eight treatments and four replications was applied in this experiment. The treatments were kernel shell (CK), palm frond (PKS), oil palm empty bunches (TKKS), CK+PKS+TKKS (mix), fermented kernel shell (CKF), fermented palm frond (PKSF), fermented oil palm empty bunches (TKKSF) and fermented mix (mixF). The results showed that fermentation process reduced NDF content of PKS and TKKS by 7.42 and 7.09% respectively. Fermentation also decreased ADF content of TKKS by 7.35%. Maximum total gas production (a+b) of TKKS and mix sample decreased after fermentation process (P<0.05) by 52.92 and 35.60% respectively. Total VFA production increased on kernel shell and palm fronds samples after fermentation process (P<0.05) however CO2:CH4 ratio tended to be decrease. The conclusion of this study was the fermentation process by irradiated A. niger improved rumen fermentation characteristics of oil palm by-products, however more appropriate strategy is needed to reduce CH4 emissions.

Acoustic Performance Mixture of Natural Fibres of Oil Palm Frond (OPF) and Empty Fruit Bunch (EFB)

2021 ◽  
Vol 317 ◽  
pp. 361-368
Author(s):  
Mageswaran Ravi Chandran ◽  
Ewe Lay Sheng ◽  
Yew Weng Kean ◽  
Mohammad Nazhan Nasir ◽  
Zawawi Ibrahim
Keyword(s):  
Oil Palm ◽  
Absorption Rate ◽  
Low Cost ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Acoustic Properties ◽  
Empty Fruit Bunch ◽  
Acoustic Performance ◽  
Oil Palm Frond ◽  
Palm Frond

The expansion of the oil palm industry has affected the environment and the poor handling of oil palm waste has greatly endangered the habitat surrounds it. The oil palm natural fibre waste can be put to good use and used as a sound absorber for its amazing acoustic properties. At the same time, the demand for natural fibre sound-absorbing panels is increasing due to its low-cost fabrication and its healthier than synthetic fibre. This research has studied the acoustic properties of mixing Empty Fruit Bunch (EFB) and Oil Palm Frond (OPF) in a thickness of 12 mm, 14 mm, 16 mm, and 18 mm. The fibreboard has been fabricated at a density of 120 kg/m3. The Sound Absorption Coefficient, SAC, and morphologies of all the samples were examined using the Impedance Tube Method (ITM) and Scanning Electron Microscope, (SEM). The sample’s SAC value increased with thickness. It is noteworthy that this combination percentage of natural fibres of EFB and OPF show good acoustic performance where the SAC values above 0.8 at wide frequency 3000 - 6400 Hz. Sample thickness 14 mm, 18 mm achieved unity (1.0) at frequency 4000 - 5500 Hz. In addition, all the samples were found to exceed 90 % of the absorption rate in the range of 4500 - 6400 Hz. The morphology content of EFB and OPF helps in enhancing the absorption rate.

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