Application of Michaelis–Menten in the kinetics of oil palm frond enzymatic hydrolysis for ferulic acid production

Enzymatic hydrolysis of fibre-pressed oil palm frond (FPOPF) was done using mix culture for the production of ferulic acid. Mix culture was prepared by acclimatizing the soil obtained from palm oil plantation with FPOPF substrate for 30 days. The substrate had a ratio of FPOPF to water of 1:10. Design Expert 7.1 was used to aid the experimental design. A half fractional two-level factorial analysis with five factors was selected for the experimental design resulting in a total of 16 runs. The factors controlled were temperature (A; 26°C and 40°C), pH value (B; 5 and 9), agitation speed (C; 0 and 150 rpm), inoculum percentage (D; 2% and 10%), and response time (E; 1 and 3 days). The result obtained showed that the experimental design model was significant with a coefficient of determination value of 0.8978. Two factors that contributed the most to the process were temperature and pH value. This model was proved to be repeatable with a validation test percentage error at 4.15% to 6.83%.

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Enzymatic Hydrolysis of Pretreated Fibre Pressed Oil Palm Frond by using Sacchariseb C6

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/206/1/012008 ◽

2017 ◽

Vol 206 ◽

pp. 012008

Author(s):

F S Hashim ◽

H W Yussof ◽

M A K M Zahari ◽

R A Rahman ◽

R M Illias

Keyword(s):

Enzymatic Hydrolysis ◽

Oil Palm ◽

Oil Palm Frond ◽

Hydrolysis Of ◽

Palm Frond

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Dynamic Model-Free and Model-Fitting Kinetic Analysis during Torrefaction of Oil Palm Frond Pellets

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS ◽

10.9767/bcrec.15.1.6985.253-263 ◽

2020 ◽

Vol 15 (1) ◽

pp. 253-263

Author(s):

Sharmeela Matali ◽

Norazah Abd Rahman ◽

Siti Shawalliah Idris ◽

Nurhafizah Yaacob

Keyword(s):

Activation Energy ◽

Thermal Degradation ◽

Oil Palm ◽

Model Fitting ◽

Integral Model ◽

Model Free ◽

Solid Biofuel ◽

Oil Palm Frond ◽

Kinetics Of ◽

Palm Frond

Torrefaction is a thermal conversion method extensively used for improving the properties of biomass. Usually this process is conducted within a temperature range of 200-300 °C under an inert atmosphere with residence time up to 60 minutes. This work aimed to study the kinetic of thermal degradation of oil palm frond pellet (OPFP) as solid biofuel for bioenergy production. The kinetics of OPFP during torrefaction was studied using frequently used iso-conversional model fitting (Coats-Redfern (CR)) and integral model-free (Kissinger-Akahira-Sunose (KAS)) methods in order to provide effective apparent activation energy as a function of conversion. The thermal degradation experiments were conducted at four heating rates of 5, 10, 15, and 20 °C/min in a thermogravimetric analyzer (TGA) under non-oxidative atmosphere. The results revealed that thermal decomposition kinetics of OPFP during torrefaction is significantly influenced by the severity of torrefaction temperature. Via Coats-Redfern method, torrefaction degradation reaction mechanism follows that of reaction order with n = 1. The activation energy values were 239.03 kJ/mol and 109.28 kJ/mol based on KAS and CR models, respectively. Copyright © 2020 BCREC Group. All rights reserved

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DRYING KINETICS OF OIL PALM FROND WASTE USING SIMPLE BATCH OVEN DRYER

Jurnal Bahan Alam Terbarukan ◽

10.15294/jbat.v5i1.4151 ◽

2016 ◽

Vol 5 (1) ◽

pp. 1-7

Author(s):

Abdul Halim ◽

Bayu Triwibowo

Keyword(s):

Oil Palm ◽

Longitudinal Direction ◽

Experimental Result ◽

Operation Temperature ◽

Drying Kinetic ◽

Oil Palm Frond ◽

The Difference ◽

Difference Operation ◽

Kinetics Of ◽

Palm Frond

Drying phenomena of oil palm frond waste as agriculture waste was observed using simple batch oven dryer. The operation temperatures were 50, 80 and 120 C. The sample of oil palm frond was weighed periodically every 30 minutes. Moisture content, shrinkage phenomena and drying kinetic model were investigated to the difference operation temperature. Experimental result exhibited that temperature influent significantly to the drying rate. The water transport controlled by diffuse mechanism. Shrinkage occurred in radial direction and decreased the size to almost 65% from initial size. In longitudinal direction almost is not change of size.

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