scholarly journals PHYSICAL PROPERTIES AND MICROSTRUCTURE OF PARTICLE BOARDS BASED ON PALM OIL PALM EMPTY FRUITS AND BAMBOO POWDER WITH A MIXED ADHESIVE OF GAMBIR AND UREA FORMALDEHYDE

2021 ◽  
Vol 5 (1) ◽  
pp. 21
Author(s):  
Nanda Putri Afrilda ◽  
Ety Jumiati ◽  
Abdul Halim Daulay
Keyword(s):  
Oil Palm ◽  
Urea Formaldehyde ◽  
Microstructural Analysis ◽  
Hot Press ◽  
Drying Time ◽  
Empty Fruit Bunches ◽  
Test Parameters ◽  
Board Surface ◽  
Bamboo Powder

This test was carried out to reduce waste in coconut empty fruit bunches and to determine the characteristics and microstructure of the particle board surface.  The samples used consisted of bamboo powder and oil palm empty fruit bunches with gambier adhesive and urea formaldehyde with variations including: 10%:75%:15%:11%;  20%:65%:15%:11%, 30%:55%:15%:11%, 40%:45%:10%:11%.  The particleboard was printed and pressurized using a hot press of 16kg/cm2 for 15 minutes at a temperature of 120 oC, with a drying time of 14 days.  The test parameters include: density, moisture content, thickness expansion, and microstructural analysis using SEM (Scanning Electron Microscopy) which refers to SNI 03-2105-2006.  The characterization of particleboard produced in the density test is 0.66-0.74 g/cm3, the water content value is 2.4-6.9%, the thickness expansion value is 7.2-12%.  Based on the percentage value of the density of the resulting particleboard is a medium density particleboard.

scholarly journals Eco-Friendly Extraction and Characterization of Cellulose from Oil Palm Empty Fruit Bunches

BioResources ◽  
2013 ◽  
Vol 8 (2) ◽  
Author(s):  
Muhammad Shahid Nazir ◽  
Bambang Air Wahjoedi ◽  
Abdul Wahid Yussof ◽  
Mohd Azmuddin Abdullah
Keyword(s):  
Oil Palm ◽  
Empty Fruit Bunches

GASIFICATION OF OIL PALM EMPTY FRUIT BUNCHES (OPEFB) BRIQUETTES FOR BIO-SYNGAS PRODUCTION

2016 ◽  
Vol 78 (8-3) ◽  
Author(s):  
Bemgba Bevan Nyakuma ◽  
Arshad Ahmad ◽  
Anwar Johari ◽  
Tuan A. T. Abdullah ◽  
Olagoke Oladokun ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Oil Palm ◽  
Empty Fruit Bunches ◽  
Syngas Production ◽  
Bed Temperature ◽  
Fluidized Bed Gasifier ◽  
Bed Agglomeration ◽  
Solid Biomass Fuel ◽  
Solid Biomass

Gasification of Oil Palm Empty Fruit Bunches (OPEFB) briquettes was investigated in an air blown 4.5 kW allothermal fluidized bed gasifier to examine the effects of bed temperature (600 – 800 °C) and equivalence ratio (λ = 0.25) on bio-syngas yield and composition. In addition, physicochemical and thermochemical characterization of the fuel properties of the OPEFB briquettes were also examined. The results demonstrate that pelletization improved the solid biomass fuel (SBF) properties of OPEFB including moisture content and higher heating value (HHV). The gasification of OPEFB briquettes produced bio-syngas comprising H2, CO, CO2, CH4 as well as solid biochar with a HHV higher than the original OPEFB briquettes. The highest yield of H2 was obtained at 600 °C while HHV of the bio-syngas was within the range 4 - 8 MJ/Nm3 for air gasification in fluidized bed gasifiers. In addition, agglomeration of bed materials did not occur during OPEFB briquettes gasification despite its high bed agglomeration potential (BAP). In conclusion, the gasification of OPEFB briquettes into bio-syngas and biochar is a practical route for bioenergy production in Malaysia

scholarly journals Produksi dan karakterisasi lakase Omphalina sp. Production and characterization of Omphalina sp. laccase

2016 ◽  
Vol 75 (2) ◽  
Author(s):  
. SISWANTO ◽  
. SUHARYANTO ◽  
Rossy FITRIA
Keyword(s):  
Oil Palm ◽  
Laccase Activity ◽  
Research Result ◽  
White Rot Fungi ◽  
White Rot ◽  
Partial Purification ◽  
Empty Fruit Bunches ◽  
Optimum Ph ◽  
Laccase Enzyme

SummaryOmphalina sp. a white-rot fungi (WRF)originated from oil palm plantation has abilityto degrade empty fruit bunches of oil palm(EFBOP) so that it is expected to producelaccase with high activity. The ability ofOmphalina sp. to produce laccase enzyme onliquid fermentation will be studied. The enzymewill also be partially purified andcharacterized. The research result showed thatthe highest enzyme activity (1.162 U/mL) wasobtained using glucose malt yeast (GMY)medium at room temperature for four days.The addition of 2,5-xylidine as an inducerproduced laccase earlier i.e two days, but theactivity of laccase was less active afterprolonged incubation compared to that ofcontrol. The laccase produced on mediumcontaining 2% EFBOP reached optimumactivity as much as 0.38 U/mL after 10 th daysof incubation. Partial purification of laccaseon Sephacryl S-200 HR column resulted58.23% of yield recovery with twice purity thanbefore. The optimum pH of laccase was 4.5.Laccase activity was stable even after heatedon 50 o C for 30 minutes, but then decreasedwhen heated until 60 o C. The laccase has K Mand V max as much as 0.15 mM and 0.56 U/mLrespectively.RingkasanOmphalina sp., adalah fungi pelapuk putih(FPP) hasil isolasi dari kebun kelapa sawityang diketahui mampu mendegradasi tandankosong kelapa sawit (TKKS) dengan cepatsehingga diharapkan mampu menghasilkanlakase dengan aktivitas tinggi. KemampuanOmphalina sp. menghasilkan enzim lakasepada fermentasi cair akan dipelajari. Selain itu,lakase yang dihasilkan akan dimurnikan secaraparsial serta dilakukan karakterisasi pH, suhu,dan konsentrasi substrat optimum. Hasilpenelitian menunjukkan bahwa Omphalina sp.menghasilkan lakase dengan aktivitas tertinggi(1,162 U/mL) pada medium glucose malt yeast(GMY) yang diinkubasikan pada suhu ruangselama empat hari. Penambahan 2,5-xilidinsebagai induser mempercepat produksi lakaselebih awal yaitu dalam waktu dua hari, namunaktivitasnya masih lebih rendah dibandingkandengan kontrol pada inkubasi lebih lanjut.Lakase dari Omphalina sp. juga dapatdiproduksi pada medium yang mengandung2% TKKS dan aktivitasnya mencapai0,38 U/mL yang diinkubasi dalam suhu ruangselama 10 hari. Pemurnian parsial pada kolomSephacryl S-200 HR menghasilkan rendemensebesar 58,23% dengan kemurnian dua kalinya.Aktivitas lakase optimum pada pH 4,5 dantetap stabil setelah pemanasan selama 30 menitpada suhu ruang hingga 50 o C dan menuruntajam pada suhu 60 o C. Lakase Omphalina sp.menghasilkan nilai K M dan V maks masing-masing sebesar 0,15 mM dan 0,56 U/mL.

Preparation and characterization of activated carbons produced from oil palm empty fruit bunches

TANSO ◽  
2019 ◽  
Vol 2019 (286) ◽  
pp. 9-13 ◽  
Author(s):  
Tomoyoshi Sakamoto ◽  
Muhammad Abbas Ahmad Zaini ◽  
Yoshimasa Amano ◽  
Motoi Machida
Keyword(s):  
Oil Palm ◽  
Activated Carbons ◽  
Empty Fruit Bunches

scholarly journals Abundance and characterization of microorganisms isolated from oil palm empty fruit bunches waste under aerobic, anaerobic, and facultative anaerobic conditions

2020 ◽  
Vol 21 (9) ◽  
Author(s):  
DERMIYATI DERMIYATI ◽  
RADIX SUHARJO ◽  
MARELI TELAUMBANUA ◽  
RULLY YOSITA ◽  
ANGGI WINANDA SARI ◽  
...  
Keyword(s):  
Oil Palm ◽  
Anaerobic Condition ◽  
Bacterial Abundance ◽  
Plate Count ◽  
Cellulose Content ◽  
Anaerobic Conditions ◽  
Empty Fruit Bunches ◽  
Facultative Anaerobic ◽  
Different Characteristics

Abstract. Dermiyati, Suharjo R, Telaumbanua M, Yosita R, Sari AW, Andayani AP. 2020. Abundance and characterization of microorganisms isolated from oil palm empty fruit bunches waste under aerobic, anaerobic, and facultative anaerobic conditions. Biodiversitas 21: 4213-4220. Increased production of palm oil causes an increase in oil palm empty fruit bunches waste, while the utilization of the waste has not been carried out optimally. Oil palm empty fruit bunches contain high cellulose content which promotes the development of various types of bacteria with different characteristics. This study was aimed to determine the abundance and the characterization of bacteria that were isolated from extract suspension of oil palm empty fruit bunches in the form of a local microorganism solution under aerobic, anaerobic, and facultative anaerobic conditions. For isolation, the oil palm empty fruit extract suspension was inoculated on media Plate Count Agar Peptone and bacterial abundance was determined. Various bacterial characterization test included bacterial morphology test in the form of color and shape of macroscopic isolates, gram test using KOH 3%, fermentative oxidative test, soft rot test on potato tubers, hypersensitivity test on tobacco plant leaves, and hypo virulent test which was indicated by the presence of symptoms of disease in cucumber sprouts and indicated in the disease severity index (DSI) was carried out. The results of local microorganism solution isolation from oil palm empty fruit bunches obtained as many as 220 bacterial isolates consisting of 84 isolates in aerobic condition, 68 isolates in anaerobic condition, and 68 isolates in facultative anaerobic condition. The highest bacterial abundance in aerobic conditions was equal to 285.60 x 1010 CFU mL-1. Each bacterial isolate had different characteristics. Most of the characteristics of bacteria were turbid white (34.55%), round (69.55%), gram-positive (76.36%), fermentative (89.55%), softrot negative (71.82%), hypersensitive negative (97.27%), and virulent (74.55%).

scholarly journals Characterization of Acid Treated Activated Carbon From Oil Palm Empty Fruit Bunches (EFB)

2018 ◽  
Vol 1083 ◽  
pp. 012049
Author(s):  
Nurul Afifah Mahmud ◽  
Nafisah Osman ◽  
Abdul Mutalib Md Jani
Keyword(s):  
Activated Carbon ◽  
Oil Palm ◽  
Empty Fruit Bunches
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