The extraction of lutein from marigold petals using a surfactant-based aqueous two-phase system is reported. In this work, the effectiveness hydrophilic-lipophilic balance surfactants on performance for petal powder was demonstrated solutions wide range non-ionic surfactants. response surface methodology applied to obtain optimised conditions maximum lutein. At (Temperature = 37.5 °C, S/L 0.003...

We have developed an improved thin-layer chromatographic method for separation of lung phospholipids. Individual phospholipids are completely separated in the first dimension. All phospholipids, except phosphatidylcholine, are then removed. The phosphatidylcholine-containing area is reacted with osmium tetroxide and saturated phosphatidylcholine species are separated from the unsaturated oxidat...

An in vivo rat model was used to evaluate the effects of Escherichia coli pneumonia on lung function and surfactant in bronchoalveolar lavage (BAL). Total extracellular surfactant was increased in infected rats compared with controls. BAL phospholipid content in infected rats correlated with the severity of alveolar-capillary leak as reflected in lavage protein levels (R(2) = 0.908, P < 0.0001)...

The pulmonary surfactant and respiratory disease are tightly linked. Adequate surfactant activity remains critical for optimal lung function throughout life, and secondary surfactant dysfunction may contribute to the process of many lung diseases, including Acute Respiratory Distress Syndrome, asthma, cystic fibrosis and pneumonia among others. Attempts to treat these lung diseases with exogeno...

A stable, water-soluble substance which possesses potent antimycobacterial activity under certain conditions in vitro has been prepared from calf thymus. This substance has been tentatively named thymus peptide. In final concentrations of 1 to 10 microg. per ml. of an albumin medium it inhibits the growth of various strains of mammalian mycobacteria, but manifests only little or no inhibitory a...

The efficacy of antioxidant enzymes to limit oxidant lung injury by instillation with surfactant mixtures in preterm infants with hyaline membrane disease is under investigation. However, there is concern that instillation of proteins in the alveolar space may inactivate pulmonary surfactant. We studied the effects of bovine copper-zinc superoxide dismutase (CuZn-SOD) on the biophysical propert...

Surfactants in skin cleansers interact with the skin in several manners. In addition to the desired benefit of providing skin hygiene, surfactants also extract skin components during cleansing and remain in the stratum corneum (SC) after rinsing. These side effects disrupt SC structure and degrade its barrier properties. Recent applications of vibrational spectroscopy and two-photon microscopy ...