A rapid test for alpha dicarbonyls

O’Daniel, L.; Parsons, L. B.

doi:10.1007/bf02549461

Cited by 12 publications

(3 citation statements)

References 6 publications

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“…O'Daniel and Parsons (99) suggested that CH 3 -CO-CO-CH 3 derivatives were responsible for the yellow color. They also found evidence that monounsaturated fatty acids do not yield α-dicarbonyls, and apparently at least two double bonds in a fatty acid molecule are necessary for their formation.…”

Section: Initiationmentioning

confidence: 98%

Aging of oily soils on textile materials: A literature review

Chi

Obendorf

1998

J Surfact & Detergents

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Literature covering the problems of oily soil aging on textile materials is reviewed. Difficulty of soil removal and discoloration of oily soiled fabrics were the main problems of aged oily soil reported by researchers. Yellowing of fabrics is attributed mainly to residual oily soils although there are other causes. Oxidation of unsaturated oils was suggested as the cause of problems related to aging of oily soils; thus, the autoxidation mechanisms of unsaturated lipids are an important part of this review. The effects of aging on oily soil removal are attributed to this oxidation of unsaturated oils, wicking of oils into small capillaries within the yarn structure, and possible chemical linkages of aged oils with fibers. Thus, included in this review are studies on the interactions between lipid oxidation products and proteins that suggest interaction between aged oily soils and fiber substrates. JSD 1, 407-418 (1998).

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Section: Initiationmentioning

confidence: 98%

Aging of oily soils on textile materials: A literature review

Chi

Obendorf

1998

J Surfact & Detergents

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“…That an alpha diketone was present was further indicated by the development of a strong reddish-brown color when alcoholic solutions of the dimer or the trimer fraction were treated with potassium hydroxide. This coloration, according to O'Daniel and Parsons (20), resulted from the quinoid compounds which are formed by aldol condensation of the alpha diketones in a manner analogous to the formation of paraxyloquinone from diacetyl.…”

Section: Resultsmentioning

confidence: 98%

The isolation and characterization of the polymers formed during the autoxidation of ethyl linolenate

Witting

Chang

Kummerow

1957

J Americ Oil Chem Soc

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Summary Pure ethyl linolenate was prepared and autoxidized; and dimeric and trimeric fractions were separated by solvent fractionation. These fractions were subjected to quantitative, functional group‐analysis. On a basis of oxygen known to be present but not detected in the functional groups the possibility that polymerization had taken place through an oxygen linkage was considered. The mild nature of the reagent causing depolymerization suggested that this linkage was of the peroxide type rather than the dioxane ring.

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“…However, these peaks were observed in both material containing boar odor and material free of boar odor, which makes it impossible to draw any conclusions pertaining to the component or components responsible for boar odor in pork. cyanins to heat (6,15) have been studied…”

Section: Resultsmentioning

confidence: 99%