Smegmatocin, a protein produced by Mycobacterium smegmatis ATCC 14468, was found to have an esterase activity, hydrolyzing Tween 80, polyoxyethylene sorbitan monooleate, added to the assay medium for various "bacteriocins" from mycobacteria. Because M. diernhoferi ATCC 19340 (indicator strain for smegmatocin) is highly susceptible to oleic acid and smegmatocin requires Tween 80 for manifestatio...

A Tween 80 hydrolysis test substrate was found to be stable at room temperature for at least 6 months.

MacConkey agar modified with Tween 80, and deoxyribonuclease agar modified with Tween 80 plus sorbitol were used in differentiating Yersinia enterocolitica colonies from other lactose-negative bacterial colonies.

The effect of detergents on the activity of palmityl coenzyme A: carnitine 0-palmityltransferase (EC 2.3.1.-) has been investigated. A series of detergents (n-palmitylcarnitine, palmitylcholine, caprinylcholine, free fatty acids, deoxycholate, digitonin, Tween 20, Tween 80, and Triton X-100) have been found to stimulate the incorporation of L-carnitine-CH@H into L-palmitylcarnitine in the prese...

BACKGROUND Preparation of inhaled capsaicin solutions for cough induction varies greatly from one lab to another, which creates inconsistencies between tussigenic challenge results. The addition of Tween to these capsaicin solutions provides increased solubility and stability; however, the foul taste of Tween makes inhaling the solution for any prolonged period of time unpleasant. We sought to ...

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...