Lecithin-rich mixtures of the nontoxic surfactants lecithin and Tween 80 are effective marine oil spill dispersants, but produce much higher oil-water interfacial tension than other, comparably effective dispersants. This suggests interfacial phenomena other than interfacial tension influence lecithin-Tween 80 dispersants' effectiveness. The interface between seawater and dispersant-crude oil m...

Human subjects were infused intraduodenally with either lecithin (150 mg/kg/hr) or safflower oil (100 mg/kg/hr)of similar fatty acid composition, and plasma lipoproteins were studied when constant plasma lipid levels were reached. Both types of fat induced increases of lipoproteins of Sf > 400 (chylomicrons) and Sf 20--400 (VLDL). Lecithin infusions produced increases predominantly in VLDL, whe...

Incorporation of acetate-1-(14)C into phospholipids and fatty acids by lung slices from fetal and newborn lambs and from ewes was studied in vitro. The distribution of radioactivity in the fatty acids of neutral lipids, phospholipids, and lecithin was determined. Acetate-1-(14)C was incorporated into myristic, palmitic, and C(18) fatty acids. Of the lecithin fatty acids, myristic and palmitic w...

However, a scrutiny of all the work on lecithin reveals a remarkable incompleteness of each individual investigation. A rigorous proof of the accepted theory requires for lecithin an element,ary composition of C = 65.60, H = 10.79, N = 1.74, P = 3.86. It further requires that the nitrogen of the molecule should be composed entirely of choline. Hence, lecithin should not contain even a part of i...

Rabbit polymorphonuclear leukocytes ingesting paraffin oil particles stabilized with albumin, converted more lysolecithin-(32)P (added to the medium as an albumin complex) to cellular lecithin than did control cells. Almost all of the increment in leukocyte lecithin-(32)P is found in association with the isolated phagocytic vacuoles. About half of lecithin-(32)P of granulocytes incubated first ...

The flocculation tests currently used for the serodiagnosis of syphilis involve the use of an aqueous emulsion of cholesterol, beef heart lecithin, and cardiolipin which undergoes aggregation when treated with Wassermann antibody (1). The r81e of cholesterol in ihis reaction has been depicted as providing a particulate surface which enhances the visibility of the aggregates formed by the antige...

The first long-term double-blind placebo controlled trial of high dose lecithin in senile dementia of the Alzheimer type is reported. Fifty one subjects were given 20-25 g/day of purified soya lecithin (containing 90% phosphatidyl plus lysophosphatidyl choline) for six months and followed up for at least a further six months. Plasma choline levels were monitored throughout the treatment period....

We sought to determine if lecithin would produce a dose-response effect, increasing carotenoid bioaccessibility and Caco-2 cell uptake. A mixture of β-carotene, lycopene, lutein zeaxanthin was digested with concentrations (0–10 mg lecithin/mL test meal) ∼4% vegetable oil (n = 6 per condition). In vitro gastric, duodenal, jejunal digestion mimicked for 1 h each, the micellar fraction isolated an...