Succinic acid is valued as a potential starting point for the production of chemicals of the C4 family or in the preparation of biodegradable polymers. For sustainable development in this era of petroleum shortage, production of succinic acid by microbial fermentation of renewable feedstock has attracted great interest. In this study, pretreatment with sulfuric acid and biotin supplementation w...

Mannheimia succiniciproducens MBEL55E isolated from bovine rumen is able to produce a large amount of succinic acid in a medium containing glucose, peptone, and yeast extract. In order to reduce the cost of the medium, whey and corn steep liquor (CSL) were used as substrates for the production of succinic acid by M. succiniciproducens MBEL55E. Anaerobic batch cultures of M. succiniciproducens M...

Ethylene vinyl acetate (EVA), commonly used to encapsulate photovoltaic (PV) modules, deteriorates on prolonged exposure sunlight. In this work, fresh and deteriorated EVA samples prepared by UV irradiation (500 W m−2) over different periods (0–168 h) are characterized conventional elemental analysis, microscopic observations, Fourier transform infrared (FT-IR) spectroscopy, thermogravimetry. T...

The manufacture of a high-quality meat analogue needs the utilization appropriate ingredients through application cutting-edge technology to mimic functional properties traditional without negatively affecting product features. Here, reduced-fat soy-based emulsion gels, prepared by biosurfactant variants, were printed via an extrusion-based printer well-defined 3D structure. printing performanc...

CEL-III is a Ca(2+)-dependent lectin from a marine invertebrate, Cucumaria echinata, which shows strong hemolytic activity toward human and rabbit erythrocytes. After binding to carbohydrate receptors, CEL-III oligomerizes in the erythrocyte membrane to form ion-permeable pores, leading to the colloid osmotic rupture of the cells. Since hemolysis was greatly increased in the alkaline pH, especi...

Succinic acid was produced by fermentation of Anaerobiospirillum succiniciproducens using glycerol as a carbon source. When cells were anaerobically cultured in a medium containing 6.5 g/L glycerol, a high succinic acid yield (133%) was obtained while avoiding the formation of by-product acetic acid. The gram ratio of succinic acid to acetic acid was 25.8:1, which is 6.5 times higher than that ...

In this work, the influence of three types of styrene maleic anhydride (SMA) oligomers on the adhesion of polystyrene wood plastic composites (WPC) was investigated. The composites were processed on a twin-screw co-rotating extruder below 200°C using 20 wt% of wood flour. The styrene maleic anhydride with different content of maleic anhydride groups, 30%, 25% and 20% (w/w) and levels of 1, 2 an...

Optical properties of spin-cast chitosan films were determined in the vacuum ultraviolet (VUV) through visible regions of the spectrum using spectroscopic ellipsometry. The onset of absorption in the ultraviolet was determined for chitosan films modified with succinic anhydride (SA) and glycidyl phenyl ether (GPE). This absorption was accounted for by including Gaussian and Tauc– Lorentz shaped...

The present communication is devoted to the description of the isolation, properties, and composition of a particulate unit which we shall refer to as the succinic dehydrogenase complex (SDC). The working hypothesis underlying this and subsequent communications in this series is that SDC is a unit of enzymatic action in the same sense as any well defined soluble enzyme. Since the discovery of s...