摘要:
A method for inhibiting formation of nitrosamines and an anion exchange resin produced therefrom comprising providing an anion exchange resin with a nitrosating agent and applying an antioxidant to the resin to inhibit formation of nitrosamines on the anion exchange resin.
摘要:
Utilization of δ-tocopherol for improving the heat stability and/or oxidation stability of p-methoxycinnamic acid esters; UV-absorbing agents containing p-methoxycinnamic acid esters together with δ-tocopherol in such an amount effective in improving the heat stability and/or oxidation stability thereof; and cosmetics containing these UV absorbers. δ-Tocopherol can improve the heat stability and/or oxidation stability of p-methoxycinnamic acid esters which are frequently employed as UV absorbers.
摘要:
An increase in specific antioxidant activity of extracts from rosemary (Rosemarinus officinalis) is obtained by the use of a blend of tetrafluoroethane and acetone in the extraction process. A blend of tetrafluoroethane, acetone and methanol improves total yield. A tetrafluoroethane and acetone blend has higher efficacy but comparatively lower yields. The methods yield a liquid and oily extract that is readily mixed with a liquid product such as soybean oil for addition to animal feeds and human food.
摘要:
Compositions and methods for inhibition of desulfurization in oligonucleotides comprising one or more phosphorothioate linkages. Antioxidants which partition into the aqueous phase of bi-phasic or multi-phasic topical pharmaceutical formulations inhibit desulfurization of phosphorothioate oligonucleotides, resulting in enhanced oligonucleotide stability.
摘要:
Highly concentrated, storage stable aqueous dispersions of a light stabiliser or of a mixture of a light stabiliser with an antioxidant contain more than 47 % by weight active substance, at least one non-ionic crosslinking agent as dispersing agent and a polyglycol as solubiliser, as well as 0.2 to 5 % by weight oleic acid as fluidising agent. Other components may be anionic crosslinking agents and biocides. The claimed dispersions can be easily incorporated into coating masses, such as an aqueous dispersion, an aqueous emulsion or an aqueous solution of a binder based on crosslinkable alkyd resin, acrylic resin, polyester resin or polyurethane resin.
摘要:
Antioxidant polymers of the present invention comprise repeat units that include one or both of Structural Formulas (I) and (II), wherein: R is -H or a substituted or unsubstituted alkyl, acyl or aryl group; Ring A is substituted with at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Ring B is substituted with at least one -H and at least one tert-butyl group or substituted or unsubstituted n-alkoxycarbonyl group; Rings A and B are each optionally substituted with one or more groups selected from the group consisting of -OH, -NH, -SH, a substituted or unsubstituted alkyl or aryl group, and a substituted or unsubstituted alkoxycarbonyl group; n is an integer equal to or greater than 2; and p is an integer equal to or greater than 0. The invention also includes methods of using and preparing these polymers.
摘要:
Oxygen scavenging materials particularly for use in the food industry, are disclosed. The oxygen scavenging materials comprise at least one compound oxidizable by molecular oxygen, wherein the at least one compound is contained within an oxygen impermeable compartments(s) or microcapsules(s) which may, as required, be broken or otherwise rendered oxygen permeable by application of heat, electromagnetic radiation, mechanical pressure or stress, or by hydration.