4.5 Editorial Material

Special issue: 6th International Conference of Chemical Engineering & Industrial Biotechnology 2022 (ICCEIB 2022)

Related references

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Article Biotechnology & Applied Microbiology

Green synthesis of ZnFe2O4 nanoparticles using Chrysanthemum spp. flower extract for the adsorption and photocatalytic degradation of malachite green dye

Uyen Thi Phuong Nguyen et al.

Summary: In this study, ZnFe2O4 nanoparticles synthesized using Chrysanthemum spp. flower extract were found to be effective adsorbents and photocatalysts for the removal of malachite green dye. The synthesized nanoparticles exhibited good adsorption capacity and photocatalytic activity.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Magnetic porous carbon nanocomposites derived from cactus (Opuntia stricta Haw.) for the removal of toxic dyes: optimization of synthesis conditions using response surface methodology

Duyen Thi Cam Nguyen et al.

Summary: In this study, ZnFe2O4@AC derived from O. stricta biowaste was fabricated and used for dye removal. The optimized ZnFe2O4@AC showed excellent performance in terms of adsorption capacity and kinetics, making it a promising bioadsorbent.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Transesterification method of microalgae biomass to produce fatty acid methyl esters

Nur Hidayah Mat Yasin et al.

Summary: This study investigated the effect of different solvents on the production of fatty acid methyl esters (FAMEs) from Chlorella vulgaris using two different methods of transesterification: direct transesterification (d-trans) and extraction transesterification (ext-trans). Different solvents were expected to lead to different amounts of FAMEs. Two solvents (methanol and ethanol) with volumes of each of 10,12 and 14 mL were selected to produce higher amounts of FAMEs.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Characteristics of CO2 adsorption and desorption on activated carbon in comparison with zeolite 13X and carbon molecular sieve and applications in biogas upgrading using vacuum pressure swing adsorption

Sirawich Punpee et al.

Summary: In this study, the characteristics of CO2 adsorption and desorption on activated carbon (AC) were investigated using Aspen Adsorption. The performances of vacuum pressure swing adsorption (VPSA) using zeolite 13X, carbon molecular sieve (CMS) and AC were compared, revealing that VPSA using zeolite 13X, CMS, and AC adsorbents gives a biomethane product of around 98%, 97%, and 93% CH4, respectively.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Synthesis of zeolitic imidazolate framework-8 modified graphene oxide composite and its application for lead removal

Siti Zu Nurain Ahmad et al.

Summary: This study prepared composites of zeolitic imidazolate framework-8 (ZIF-8) and graphene oxide (GO) via room temperature synthesis (RTS) method for the removal of lead ions (Pb2+) from industrial wastewater. The results showed that ZGH30 exhibited the highest adsorption capacity and the fastest equilibrium time compared to ZIF-8 and GO alone.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Enhanced excretion of recombinant cyclodextrin glucanotransferase and cell stability of immobilized recombinant Escherichia coli by reducing tryptone concentration

Rohaida Che Man et al.

Summary: In this study, recombinant Escherichia coli cells were immobilized on a hollow fiber membrane to investigate the impact of different concentrations of tryptone as a nitrogen source on the secretion of recombinant cyclodextrin glucanotransferase (CGTase), plasmid stability, and cell lysis. The results showed that immobilized cells with a tryptone concentration of 5 g L-1 significantly improved plasmid stability and reduced cell lysis without affecting CGTase secretion. Compared to a tryptone concentration of 20 g L-1, immobilized cells exhibited a 2-fold increase in CGTase secretion, a 45% reduction in cell lysis, and a 172% improvement in plasmid stability.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Calcium carbonate from chicken eggshells as filler in composite Nafion membrane for direct ethanol fuel cell: a molecular dynamics study

Nabila A. Karim et al.

Summary: This study developed calcium carbonate from chicken eggshells as a filler in a Nafion composite membrane to reduce ethanol crossover in direct ethanol fuel cells. The results showed that the filler can decrease proton conductivity and ethanol permeability, but appropriate size structure and mass loading are required to balance high ion conductivity and reduce ethanol permeability.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Hydrodynamic and mass transfer correlations for SiC ceramic foam monolithic trays used in distillation column

Jian Na et al.

Summary: Based on published experimental data, empirical correlations were developed in this study to predict the hydrodynamic performance and mass transfer efficiency of SiC ceramic foam monolithic trays. These new correlations take into account the tray structure parameters (such as open cell diameter and tray thickness) and the operation conditions (such as liquid and vapor flow rates), and the predicted results agree well with the experimental results. The availability of such empirical correlations can be beneficial for the chemical engineering design of practical distillation processes based on SiC foam monolithic trays.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Review Biotechnology & Applied Microbiology

Multilayered membrane spacer: does it enhance solution mixing?

Sajjad Khudhur Abbas Al-Amshawee et al.

Summary: This paper systematically investigates the effect of multilayered membrane spacers on fluid dynamics and performance metrics. The use of multilayer spacers can improve mass transfer and reduce membrane fouling. The middle layer of the multilayer spacer disperses the primary flow to create narrow channels near the membrane, resulting in swirling flows and consistent ion concentration domains. The implementation of multilayer geometry in feed channels shows promise in saving operational energy and minimizing concentration gradients.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Menhaden fish oil encapsulation by spray drying process: influence of different biopolymer materials, inlet air temperature and emulsion ratios

Nurmaryam Aini Hashim et al.

Summary: This study aimed to develop microencapsulated fish oil using spray drying technique with different biopolymer materials. The combination of maltodextrin + whey protein isolates as coating materials at an inlet air temperature of 190 degrees C and an emulsion ratio of 30% successfully produced fish oil microcapsules with improved properties.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Adsorptive capacity and kinetic studies of PK216 resin for the extraction of Pr, Gd, and Dy rare earth elements

Nur Nadiatul Hidayah et al.

Summary: In this study, PK216 resin was used to study the adsorption kinetics and mechanism of rare earth elements (REE) ions. The results showed that higher loading increased the adsorption capacity, while pH and temperature had minimal effects. The adsorption of praseodymium (Pr) and gadolinium (Gd) was spontaneous and exothermic, while dysprosium (Dy) was endothermic. The Langmuir model and pseudo-second-order reaction were found to be the most suitable models for the adsorption process.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Valorization of kaffir lime peel through extraction of essential oil and process optimization for phenolic compounds

Peany Houng et al.

Summary: This study extracted essential oil from kaffir lime peel through hydrodistillation and optimized the extraction of phenolic compounds from the kaffir lime peel residue using an ethanolic extraction method. The major volatile compounds in the essential oil were terpinene-4-ol, beta-pinene, and d-limonene. The optimal conditions for phenolic compound extraction were 120 min, 60 ?, and 1:20 g mL(-1), resulting in a yield of 8.6 mg GAE g(-1) sample. These results are significant for maximizing the extraction yield of phenolic compounds from kaffir lime peel and exploring the potential utilization of kaffir lime peel wastes.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Ni-based metal organic frameworks: an efficient catalyst for the amidation reaction to obtain N-(pyridin-2-yl)arylamides

Oanh T. K. Nguyen et al.

Summary: This study successfully synthesized N-(pyridin-2-yl)arylamide compounds using a nickel-based metal-organic framework catalyst with an 85% yield. Furthermore, the catalyst could be recovered and reused, with a catalytic activity retention of 79% after six runs. Importance rating: 9 out of 10.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Review Biotechnology & Applied Microbiology

A short review on catalytic hydrogenation of fructose into mannitol

Zulaikha A. Alexzman et al.

Summary: The increase in greenhouse gas emissions caused by increased use of fossil fuels is one of the primary causes of climate change. Catalytic hydrogenation of fructose is seen as an alternative method for addressing this issue, as it converts biomass into useful compounds via the hydrogenation reaction. Unfortunately, catalyst inactivation has restricted its industrial application. The creation of novel catalysts with the potential to raise the hydrogenation reaction's efficiency has thus attracted a lot of attention.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)

Article Biotechnology & Applied Microbiology

Stepwise conversion of methane to methanol on Cu and Fe/zeolites prepared in solid state: the effect of zeolite type and activation temperature

Ha Le et al.

Summary: This study investigates the effects of zeolite topology and activation temperature on the catalytic performance of Cu- and Fe-containing zeolites. The results show that Cu species exchanged in medium-pore zeolites (mordenite, ZSM-5, and ferrierite) yield more methanol, while large-pore zeolites (zeolite beta and zeolite gamma) are not suitable for active Cu sites.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY (2023)