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Lignocellulose hydrolysates are rich in fermentable sugars such as xylose, cellobiose and glucose, with high potential in the biotechnology industry to obtain bioproducts of higher economic value. Thus, it is important to search for and study new yeast strains that co-consume these sugars to achieve better yields and productivity in the processes. The yeast Clavispora lusitaniae CDBB-L-2031, a native strain isolated from mezcal must, was studied under various culture conditions to potentially produce ethanol and xylitol due to its ability to assimilate xylose, cellobiose and glucose. This yeast produced ethanol under microaerobic conditions with yields of 0.451 g

Por su contenido de proteínas y minerales, el pulido de arroz (PA) podría ser empleado en alimentación humana o animal si son eliminados el aceite y las fracciones con alto contenido de fibra. Para ello se realizó la extracción sólido-líquido al PA, con una eficiencia en la extracción del extracto etéreo del 95,6%, a fin de obtener el pulido de arroz desengrasado (PAD). Se efectuó la clasificación granulométrica del PA y PAD, y de cada fracción se determinó su composición química proximal: proteína, extracto etéreo, cenizas, fibra neutro detergente (FND) y extracto libre de nitrógeno (ELN). El PA tiene un alto contenido de fracciones gruesas (>70% corresponden a partículas con tamaño de malla >120), mientras que el PAD posee una distribución de partícula más uniforme y un contenido de grasas 70% of the mass corresponds to mesh sizes >120), whereas DRB exhibits a more uniform granulometric profile. The fat content of the DRB was 70% correspondem a partículas com tamanho de malha >120), enquanto que a PAD possui uma distribuição de partícula mais uniforme e um conteúdo de gorduras

High levels of factor VIII are a common risk factor for venous thromboembolism (VTE). The aim of this study was to evaluate the possible interaction between the presence of high factor VIII levels and oral contraceptive (OC) use.Factor VIII levels were measured by a chromogenic assay in 174 women who suffered from VTE in reproductive age and in 484 healthy women. Subjects carrying thrombophilic alterations were excluded.Factor VIII levels were stratified into quartiles. The adjusted odds ratio (OR) of VTE in subjects with factor VIII levels in the upper quartile (1.95 IU/mL) was 7.45 (95%CI: 3.80-14.6). Among the 174 patients, 85 had experienced VTE during OC use. The 179 healthy women who had used OC for at least 6 months in the two years before presentation but had stopped OC at least 3 months before the blood sampling were considered as OC users. The risk of VTE among OC users with factor VIII levels in the upper quartile was increased about 13-fold (OR: 13.0, 95% CI: 4.92-34.3).Our results showed that there is an increased risk of VTE due to oral contraceptive use in women with elevated factor VIII and, as has been previously described for factor V Leiden and G20210A prothrombin mutations, the raised level of the coagulation factor and oral contraceptive use seem to have a synergistic effect.