The fermentation of yeast reserve carbohydrates, glycogen and trehalose is a procedure to increase protein level of yeast cells and improve ethanol production. This work studied on the degradation kinetics of glycogen and trehalose carried out with two industrial strains of Saccharomyces cerevisiae (PE-2 and SA-1) and the effect of different temperatures (38o, 40o, 42o and 44oC) on degradation ...

Wet-kneaded silica–magnesia is a benchmark catalyst for the one-step ethanol-to-butadiene Lebedev process. Magnesium silicates, formed during wet kneading, have been proposed as active sites butadiene formation, and their properties are mainly explained in terms of ratio acid base sites. However, mechanism formation reactivity not yet fully established. Here we show that magnesium silicates by ...

To generate products containing a stable form of clarithromycin (CAM) (form II) regardless of the initial crystal form of CAM or type of granulation solvent, the effects of five surfactants, or a water-soluble polymer (macrogol 400) were determined on the crystal transition of CAM. The metastable form (form I) was kneaded with water, after adding surfactants, or a water-soluble polymer. Form II...

In a conventional dry grind process, corn is processed to produce ethanol and a low valued animal food coproduct called distillers dried grains with solubles (DDGS). Approximately 33% of corn in dry grind ethanol plant becomes DDGS. Due to its high fiber content DDGS has traditionally being sold as ruminant foodstuffs. New fractionation technologies are being implemented to recovery valuable co...

AIM The aim of the present study was to evaluate whether the use of simplified ethanol-wet bonding (EWB) technique improved the immediate microtensile bond strength (μTBS) between resin composite and caries-affected dentin (CAD). MATERIALS AND METHODS Twenty-four extracted carious human permanent molars were sectioned to expose the carious lesion. The carious dentin was excavated until CAD wa...

Distillers grains with solubles (DDGS), the major byproduct of ethanol production, is a good protein and energy feed for cattle. The DDGS can be fed wet or dried with animal performance usually similar when fed as wet or dried products; however, some research results favored the wet products. Cattle diets can contain DDGS as replacements for portions of both concentrates and forages, although D...

Ethanol is currently receiving increased attention because of its use as a biofuel or fuel additive and because of its influence on air quality. We used stable isotopic ratio measurements of (13)C/(12)C in ethanol emitted from vehicles and a small group of tropical plants to establish ethanol's δ(13)C end-member signatures. Ethanol emitted in exhaust is distinctly different from that emitted by...

The discovery that macrophages metabolize ethanol to acetate in vitro may be of importance in understanding the pathogenesis of ethanol-induced tissue damage (1) . When expressed per unit wet weight, the rate of metabolism ofethanol by these cells is comparable to that by hepatocytes (2) . Studies of human and murine macrophages derived from various tissues have revealed that ethanol oxidation ...

AIM To review laboratory findings on the effects of anti-depressant agents that interact with the serotonergic system on signs of ethanol withdrawal syndrome in rats. METHOD Adult Wistar rats received a modified liquid diet to produce ethanol dependence. Signs of ethanol withdrawal, locomotor hyperactivity, stereotyped behaviour, tremor, wet dog shakes, agitation, and audiogenic seizures, wer...