Factors Affecting Enzymatic Hydrolysis from Pretreated Fibre Pressed Oil Palm Frond Using Sacchariseb C6

Factors influencing poly(3-hydroxybutyrate) P(3HB) production by Cupriavidus necator CCUG52238Tutilizing oil palm frond (OPF) juice were clarified in this study. Effects of initial medium pH, agitation speed, and ammonium sulfate (NH4)2SO4concentration on the production of P(3HB) were investigated in shake flasks experiments using OPF juice as the sole carbon source. The highest P(3HB) content was recorded at pH 7.0, agitation speed of 220 rpm, and (NH4)2SO4concentration at 0.5 g/L. By culturing the wild-type strain ofC. necatorunder the aforementioned conditions, the cell dry weight (CDW) and P(3HB) content obtained were 9.31 ± 0.13 g/L and 45 ± 1.5 wt.%, respectively. This accounted for 40% increment of P(3HB) content compared to the nonoptimized condition. In the meanwhile, the effect of dissolved oxygen tension (DOT) on P(3HB) production was investigated in a 2-L bioreactor. Highest CDW (11.37 g/L) and P(3HB) content (44 wt.%) were achieved when DOT level was set at 30%. P(3HB) produced from OPF juice had a tensile strength of 40 MPa and elongation at break of 8% demonstrated that P(3HB) produced from renewable and cheap carbon source is comparable to those produced from commercial substrate.

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

SN Applied Sciences ◽

10.1007/s42452-020-2062-3 ◽

2020 ◽

Vol 2 (2) ◽

Author(s):

Zulsyazwan Ahmad Khushairi ◽

Kamaliah Abdul Samad ◽

Nurul Aliaa Abdul Rahman ◽

Hafizuddin Wan Yussof ◽

Norazwina Zainol

Keyword(s):

Enzymatic Hydrolysis ◽

Ferulic Acid ◽

Oil Palm ◽

Acid Production ◽

Oil Palm Frond ◽

Ferulic Acid Production ◽

Kinetics Of ◽

Palm Frond

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Mechanical and Acoustical Properties of Short Oil Palm Frond Fibre Reinforced Polyester Composites

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1082/1/012013 ◽

2021 ◽

Vol 1082 (1) ◽

pp. 012013

Author(s):

Sabri ◽

Zahrul Fuadi ◽

Rudi Kurniawan ◽

Samsul Rizal

Keyword(s):

Oil Palm ◽

Acoustical Properties ◽

Oil Palm Frond ◽

Polyester Composites ◽

Palm Frond

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Investigation on the Dielectric Properties of Pulverized Oil Palm Frond and Pineapple Leaf Fiber for X-Band Microwave Absorber Application

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.893.488 ◽

2014 ◽

Vol 893 ◽

pp. 488-491 ◽

Cited By ~ 1

Author(s):

Elfarizanis Baharudin ◽

Alyani Ismail ◽

Adam Reda Hasan Alhawari ◽

Edi Syams Zainudin ◽

Dayang L.A. Majid ◽

...

Keyword(s):

Dielectric Constant ◽

Dielectric Properties ◽

Oil Palm ◽

Microwave Absorber ◽

Band Frequency ◽

Pineapple Leaf Fiber ◽

X Band ◽

Oil Palm Frond ◽

Palm Frond ◽

Leaf Fiber

This paper presents the results on dielectric properties of pulverized material based on agricultural waste namely oil palm frond and pineapple leaf fiber for microwave absorber application in the X-band frequency range. The investigation is started by identifying the pulverized materials permittivities and loss tangents using coaxial probe technique, followed by density measurement comprising the determination of bulk and solid densities. Then, by using dielectric mixture model, the solid particle dielectric properties were determined. It is observed that the air properties give quite an effect on the permittivity and loss tangent of the pulverized materials. It is also found that the lower the material density the higher material dielectric constant will be. Furthermore, the results show that, both oil palm frond and pineapple leaf fiber are potential to be X-band absorber with average dielectric constant of 4.40 and 3.38 respectively. The loss tangents for both materials were observed to be more than 0.1 which mark them as lossy materials.

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