The aim of the current experiments was to study the reactive extraction of fumaric acid using Amberlite LA-2 and to comparatively analyze the influences of the process parameters (pH-value of aqueous phase, extractant concentration, and organic phase polarity) on the separation performances for ...

In the present investigation, the effects of crude glycerol concentration, spore inoculum concentration, yeast extract concentration and shaking frequency on seed morphology of Aspergillus niger PJR1 on malic acid production were investigated and dispersed fungal mycelium with higher biomass (20...

The carbon stable isotopic composition (δ13C) is often analyzed to quantify the addition of acidulants to Japanese apricot liqueur, but little is known about the variation in the δ13C values of the main organic acids arising from differences in the ripeness of Japanese apricots. We show that i...

Activation of hydrodesulfurization (HDS) catalysts through sulfidation of oxide precursors is a critical procedure required to achieve preparation of the Co(Ni)-promoted Mo(W)S2 sulfides commonly used for performing sulfur removal from transportation fuels. Better optimized preparation of HDS ca...

Nanocellulose (NC) have garnered much interest worldwide due to its physical and chemical properties. Nanocellulose is produced from biomass materials by bleaching pretreatment, followed by acid hydrolysis. This work demonstrated the production of NC from recycled paper sludge (RPS), a crystalli...

Pollution of the environment associated with discharging the toxic heavy metals in water makes us focus the light to solve this problem. In continuation of our efforts, we aim in this work to utilize the graft copolymer (chitosan‑g‑maleic acid) to purify water from copper and nickel ions. The gr...

The production of malic acid from fumaric acid using Rhizopus oryzae as a whole-cell bioconversion process was investigated. Biomass preparation and immobilisation were more straightforward compared with Bravibacterium flavum and Saccharomyces cerevisiae. Anaerobic operation greatly increased th...

In the present work, optimization of crude glycerol fermentation to produce malic acid by using Aspergillus niger was investigated using response surface methodology and artificial neural network. Kinetic investigation of bioconversion of crude glycerol into malic acid using Aspergillus niger wa...

Stable unilamellar dipalmitoylphosphatidylcholine vesicles were produced by using oligo(malic acid) and cholesterol. Detailed physico-chemical characterization prove that by using oligo(malic acid) the substitution of PEGylated lipids for sterically stabilization comes possible. The polymer mole...

This study focused on the feasibility of Y. lipolytica PSA02004 co-utilising glucose and xylose from sugarcane bagasse hydrolysate in succinic acid (SA) fermentation. Optimum pH, temperature and cellulase dosage of enzymatic hydrolysis through optimisation were pH 5, 50 °C and 40 FPU/g, respect...

Increased awareness on environmental drawbacks of petroleum-based industries are promoting transition from fossil-based succinic acid to its bio-based alternative. However, due to low price of oil the economic feasibility of the bio-succinic acid production is still challenged. The current study...

In this study, osmotically driven forward osmosis (FO) was employed prior to crystallization process in the downstream recovery of bio-based succinic acid. The fermentation broth containing succinic acid was initially pretreated using activated carbon. Powdered activated carbon (PAC) showed its ...

Due to the increasing demand of platinum group metals (PGM’s), among which platinum, the search for new alternatives aiming to their extraction and recovery is nowadays of great importance. Thus, two N,N′-tetrasubstituted succinamides, N,N′-dicyclohexyl-N,N′-dimethylsuccinamide (DMDCHSA) and...

A series of succinamide derivatives of melampomagnolide B have been synthesized by coupling MMB monosuccinate (2) with various heterocyclic amines to afford compounds 3a–3l. MMB monosuccinate was also reacted with terminal diaminoalkanes to afford dimeric succinamido analogs of MMB (4a–4h). Th...

Nine tailored extractants containing bis-succinamide (BisSCA) skeleton have been synthesized and identified by NMR and HRMS. The extraction of U(VI), Th(IV) and Eu(III) using the present extractants was evaluated in nitric acid solution. The effect of alkyl groups attached to either the central ...

The photodissociation dynamics of enolic-acetonylacetone (H3CC(O)CH2CH C(OH)CH3), in gas phase, is studied using Laser Photolysis–Laser Induced Fluorescence (LP–LIF) technique at room temperature. The nascent state distribution of the OH radical is probed formed after photo-excitation of the p...

A simple and selective method is proposed for the extraction of cobalt(II) for its spectrophotometric determination using (HIMH) as an extractant. Cobalt(II) forms a yellow coloured complex with HIMH which can be extracted into chloroform. The calibration curve is rectilinear in the concentratio...

An amphiphilic chitosan derivate, N-octyl-O-sulfate chitosan (NOSC) was prepared by octylation of amino group at C-2 position and sulfonylation at C-6 position. Micelle formed by NOSC has great capability in solubilization of water-insoluble drug paclitaxel. Enormous attention was attracted by t...

The present study describes the assimilation of di-n-octyl phthalate by an aerobic bacterium, isolated from municipal waste-contaminated soil sample utilizing di-n-octyl phthalate as the sole source of carbon and energy. The isolate was identified as Gordonia sp. based on the morphological, nutr...

In this study, 1-octyl-2-(2′-pyridyl)imidazole (OPIM), along with dinonylnaphthalene sulfonic acid (DNNSA) as a synergist, was investigated as a potential selective extractant of Ni2 + from base metals in a solvent extraction system using 2-octanol/Shellsol 2325 (4:1) as a diluent and modifier,...