Sea buckthorn oil (SBO) contains fatty acids that have an anti-aging effect. The delivery system ofSBO can be improved by a nanoemulsion system. purpose of this study was to determine thephysical stability SBO (NSB) with Tween 80 variation. NSB made 1% SBOand variation 35% (FI); 40% (FII) and 45% (FIII). stored in climatic chamberat 30 ± 2°C RH 65%±5% for 90 days. Samples were taken before stor...

Tadalafil is a phosphodiesterase 5 inhibitor used orally as solid dosage form. The suspension of this drug has been used for pulmonary arterial hypertension treatment in pediatrics. The aim of this work was to investigate the influence of non-ionic surfactant (Tween 80) on the physical characteristics, drug particle size, and stress-shear rate rheogram of tadalafil 0.1% suspension. Several form...

In this study, the effect of surfactants (Tween-80 and Acetonitrile) inclusions in the culture medium of Bacillus subtilis on the yield and characteristics of extracellular protease was investigated. The results showed that addition of Tween-80 increased the enzyme yield by 5 folds and thermal stability from 50C to 60C. Tween-80 did not affect the optimum pH, KM and VMax values as well as the e...

Production of manganese-dependent peroxidase (MnP) by the white-rot fungus Phanerochaete chrysosporium BKMF-1767 (ATCC 24725) was monitored during growth in different media and growth conditions. The effect of some activators of MnP production, Mn, Tween 80, phenylmethylsulphonylfloride (PMSF), oxygen, temperature, pH, glycerol and nitrogen was studied. Supplementing the cultures with Tween 80 ...

A medium for the selective isolation and enumeration of Mycobacterium avium-intracellulare and M. scrofulaceum (MAIS) was developed, based upon the ability of these mycobacteria to utilize Tween 80 as sole carbon source and grow optimally at pH 5.5 on a simple mineral salts medium. Representative MAIS strains had higher efficiencies of plating on the Tween 80 medium compared with Middlebrook 7H...