Textbook of biochemistry , Textbook of biochemistry , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Sunflower oil forms a solid insoluble film, called polymerize, in the auto industry. It is referred to as gum, varnish or gum. This makes it's usage for diesel fuel a disadvantage. Extensive research has been conducted on the varnish forming properties of vegetable oils. Sunflower oil is highly unsaturated or polyunsaturated. It has superior film forming properties due to it's being unsaturated. Conditions which are required for polymerization to a hard, insoluble varnish are: high temperature, oxygen rich temperature, presence of metal catalysts, sulphur in diesel fuel and extended drying time. Several alternatives, those involving non-drying oils, should be considered. To eliminate oxidation, literally thousands of antioxidants have been identified. However, the massive amounts required would be cost prohibitive. An antioxidant would eliminate thermal polymerization.

Textbook Of Biochemistry

Varnish Forming Properties of Sunflower Oil and How They Relate to its use as Fuel in Diesel Tractors

Certain metals, such as chromates and nickel, according to several published series of results of patch tests,‘? S are among the most common causes of allergic contact dermatitis. There are other metals, such as cobalt, gold, and platinum, that, although not among the most common causes, have been reported to have caused allergic contact dermatitis. It, is the more remarkable that there is only one report of iron in the form of ferric ions having been the cause of allergic contact dermatitis.4 We present here the case of a toolmaker who developed an occupational contact dermatitis due to iron.

https://www.jacionline.org/article/0091-6749(73)90006-7/pdf

Allergic contact sensitization to iron

Oxygen consumption rates were determined for bovine whole alveolar mucosa, alveolar mucosal connective tissue, and alveolar mucosal epithelium The mean oxygen quotients were 088, 039, and 208, respectively Because inclusion of connective tissue in epithelial slices was unavoidable, a histometric technique for estimating the connective tissue volume for correcting the raw QO2of the epithelium was used Of the fibers in alveolar mucosal connective tissue, 277% were collagenous and 723% were elastic Those of attached gingiva were completely collagenous The QO2039 for alveolar mucosal connective tissue is lower than the previously reported QO2069 for attached gingival connective tissue because of the additional oxygen required for hydroxylation of proline and lysine in collagen synthesis

Textbook Of Biochemistry

Citations

Varnish Forming Properties of Sunflower Oil and How They Relate to its use as Fuel in Diesel Tractors

Allergic contact sensitization to iron

Endogenous Oxygen Consumption Rates of Bovine Alveolar Mucosa

An analysis associating the presence of Claviceps purpurea in grassland with the incidence of type 1 diabetes

An electrophoretic study of the effects of cold on rabbit plasma proteins

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