| 1. |
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
- Marcuse, Reinhard
(författare)
-
Antioxidative effect of amino-acids
- 1960
-
Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 186:4728, s. 886-887
-
Tidskriftsartikel (refereegranskat)abstract
- AMINO-ACIDS are often mentioned as synergisbic antioxidants. Their mechanism of enhancing the effect, of primary antioxidants can be explained in different ways: by chelation of pro-oxidative metal traces1 and by regeneration of oxidized primary antioxidants2-4. It has also been shown that amino-acids may play the part of synergistic antioxidants as natural constituents of food material5. On the other hand, there is a lack of systematic survey on a more general basis of this effect of amino-acids. Certain results have been published, which, however, refer to special conditions6,7. No data are available on the effect of amino-acids in absence of other anti-oxidative substances. © 1960 Nature Publishing Group.
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Marcuse, Reinhard
(författare)
-
Das Ranzigwerden des Salzherings.
- 1958
-
Ingår i: Fette, Seifen, Anstrichtmittel. ; 60:6, s. 482-487
-
Tidskriftsartikel (refereegranskat)
|
|
| 8. |
|
|
| 9. |
- Marcuse, Reinhard, et al.
(författare)
-
Fat oxidation at low oxygen pressure : III. Kinetic studies on linoleic acid oxidation in emulsions in the presence of added metal salts
- 1971
-
Ingår i: Journal of the American Oil Chemists Society. - 0003-021X .- 1558-9331. ; 48:9, s. 448-451
-
Tidskriftsartikel (refereegranskat)abstract
- Earlier studies on lipid oxidation at low oxygen pressure were continued to cover the effect of low oxygen pressure in the presence of added metal salts. Addition of Cu2+ and Fe3+ salts was shown to exert a catalytic effect, which, on increasing metal concentration, may reach a maximum and then decrease. This so called conversion is favored at low oxygen pressure (e.g., corresponding to 1% O2 at atmospheric pressure). Under certain conditions it may result in an antioxidative effect. The phenomenon is more pronounced at pH 5 than at pH 7, and it is dependent on the anions present and the ratio between the concentration of the catalyst and that of the substrate. A tentative explanation of these effects of Cu2+ and Fe3+ salts at low oxygen pressure, which are not given by Fe2+ and Co2+ salts, is offered. © 1971 AOCS.
|
|
| 10. |
- Marcuse, Reinhard, et al.
(författare)
-
Fat oxidation at low oxygen pressure. : 1. kinetic studies on the rate of fat oxidation in emulsions
- 1968
-
Ingår i: Journal of the American Oil Chemists Society. - 0003-021X .- 1558-9331. ; 45:5, s. 400-407
-
Tidskriftsartikel (refereegranskat)abstract
- Oxidation was measured by oxygen consump-tion in a Warburg apparatus, modified to main-tain constant partial oxygen pressure by auto-matic electrolytic generation of oxygen with automatic recording of the oxygen consumed. The decrease in rate of oxygen consumption on the lowering of partial oxygen pressure at at-mospheric pressure was found to depend on a) the varying influence of the nonoxygen-dependent and the oxygen-dependent reactions of the prop-agation which may vary with the conditions such as the reactivity of the substrate, the tem-perature, and the pH value but which is not affected by light irradiation; b) the varying rate-limiting effect of slow oxygen diffusion, depending on the ratio between the rate of oxidation and the rate of oxygen diffusion. © 1968 American Oil Chemists' Society.
|
|
