Low-cost, sustainable, and high-capacity magnetite–cellulose adsorbent from Ramie stem (Boehmeria nivea L.) as oil spill solution

Muharja, Maktum; Fadilah, Siska Nuri; Arimbawa, I Made; Hasanah, Sofiatul; Darmayanti, Rizki Fitria; Rois, Mahardika F.; Asrofi, Mochamad

doi:10.1007/s11696-022-02423-6

Cited by 7 publications

(4 citation statements)

References 52 publications

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“…The materials were characterized by XRD to determine their structure [ 31 , 32 ]. The synthesized zeolite Na–Y and silver nanoparticles have the same characteristic peak as JCPDS No.…”

Section: Resultsmentioning

confidence: 99%

Performance of modified hollow fiber membrane silver nanoparticles-zeolites Na–Y/PVDF composite used in membrane bioreactor for industrial wastewater treatment

Darmayanti,

Muharja,

Widjaja

et al. 2023

Heliyon

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“…The materials were characterized by XRD to determine their structure [ 31 , 32 ]. The synthesized zeolite Na–Y and silver nanoparticles have the same characteristic peak as JCPDS No.…”

Section: Resultsmentioning

confidence: 99%

Performance of modified hollow fiber membrane silver nanoparticles-zeolites Na–Y/PVDF composite used in membrane bioreactor for industrial wastewater treatment

Darmayanti,

Muharja,

Widjaja

et al. 2023

Heliyon

Self Cite

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“…The instrument enabled the recording of transmittance spectra in the 400 -4000 cm −1 region with a resolution of 2 cm −1 (45 scans). The FTIR spectra were analyzed using Prestige software (IR solution) [30,31].…”

Section: Analysis and Characterization Methodsmentioning

confidence: 99%

Development of a Novel Support Modification for Efficient Lipase Immobilization: Preparation, Characterization, and Application for Bio-flavor Production

Moentamaria,

Irfin,

Chumaidi

et al. 2024

Bull. Chem. React. Eng. Catal.

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The low cost and excellent catalytic properties of lipase for industrial processes are highly desirable. A promising new approach involves the support modification of lipase and spacer arm, which enables the enhancement of lipase properties. This study investigates the immobilization of crude lipase from Mucor miehei onto a Polyurethane Foam (PUF) surface using various coating techniques. The PUF matrix was obtained through isocyanate and polyol reactions. Subsequently, the PUF was coated by adsorbing lipase and adding edible support material. The immobilized lipase was then utilized in the hydrolysis of coconut oil to produce fatty acids. Furthermore, the immobilized enzyme was employed in the esterification of fatty acids to produce bio-flavors. The results demonstrate that the attachment reaction using support material, namely lecithin, gelatin, MgCl2, and Polyethylene glycol 6000 (PEG), all of which are simple and edible, was able to enhance the stability and reusability of lipase. This immobilization technique increased triglyceride hydrolysis into FFA by 422%. The successful edible support modification of immobilized lipase from M. miehei on PUF, coupled with significantly enhanced enzyme stability and catalytic activity, offers a promising, environmentally friendly solution for diverse applications in the food industry. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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“…The second-order polynomial equation can be used to predict the yield of reducing sugar. (9) In the general SCW process, the temperature is one of the significant parameters toward cracking and hydrolysis performance of lignocellulose. It due to the properties of SCW which help in the hydrolysis process (i.e., dielectric constant, density, viscosity, etc.)…”

Section: Response Surface Of Scw Processmentioning

confidence: 99%

“…Lignocellulose is a potential feedstock for the production of biofuel and the other bioproducts, including chemicals, biofiber, biopulp, enzyme, adsorbent, etc. [6][7][8][9]. The energy from biofuel, such as biodiesel, bioethanol and biobutanol, biohydrogen, and bio-jet, has been widely applied for transportation sector and power plant because it is renewable, low cost, and environmental friendly [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Subcritical Water Process for Reducing Sugar Production from Biomass: Optimization and Kinetics

Muharja

Widjaja

Darmayanti

et al. 2022

Bull. Chem. React. Eng. Catal.

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The competitive reactions of lignocellulose hydrolysis and monosaccharide degradation in the subcritical water (SCW) hydrolysis of coconut husk were investigated to optimize the reducing sugar yield. Optimization analysis was performed by response surface methodology (RSM) and kinetics studies. Parameters of process optimization were varied at 130-170 °C for 15-45 min. The reducing sugars were measured using the Dinitro salicylic acid method. The sugar yield increased when the temperature increased from 130 °C to 170 °C. The highest reduction sugar yield of 4.946 g/L was obtained at 183.6 °C for 4.8 min and 23.4 liquid/solid ratio (LSR). Kinetics studies were carried out at temperature variations of 150, 170, and 190 °C and pressures of 60, 80, and 100 bar for 5 to 60 min. The yield of reducing sugar decreased with increasing temperature. The kinetic model 2B is the best method to explain the competitive reaction kinetics of coconut husk hydrolysis. This research is an innovation to increase the reducing sugar to make the process more commercially viable. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Low-cost, sustainable, and high-capacity magnetite–cellulose adsorbent from Ramie stem (Boehmeria nivea L.) as oil spill solution

Cited by 7 publications

References 52 publications

Performance of modified hollow fiber membrane silver nanoparticles-zeolites Na–Y/PVDF composite used in membrane bioreactor for industrial wastewater treatment

Performance of modified hollow fiber membrane silver nanoparticles-zeolites Na–Y/PVDF composite used in membrane bioreactor for industrial wastewater treatment

Development of a Novel Support Modification for Efficient Lipase Immobilization: Preparation, Characterization, and Application for Bio-flavor Production

Subcritical Water Process for Reducing Sugar Production from Biomass: Optimization and Kinetics

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