Promoters of oxidation Recognition of catalysts, factors and conditions that promote or contribute to oxidation of lipids is essential if these conditions are to be controlled. Some of the most important factors are: 1. Heat. Oxidation is typical of most chemical reactions. A 10 ° C increase in temperature doubles the reaction rate. 2. Light . Ultraviolet light is a powerful initiator and catalyst of oxidation. 3. Heavy metals . Dissolved metals such as iron and copper are also effective catalysts for oxidation at the ppm level. 4. Alkaline conditions . Basic conditions and alkaline metal ions promote free radical oxidation. 5. Degree of unsaturation . Number and position of double bonds in fat molecules can be directly related to susceptibility to oxidation; for example, linolenic acid is more easily oxidised than oleic acid. 6. Pigments . Residual pigments found in vegetable oils promote oxidation. Chlorophyll, for example, can promote oxidation of various oils by producing singlet oxygen. 7. Availability of oxygen . Oxygen is required for oxidation.
The following Hindi sentences are followed by four different ways in which they can be paraphrased in English language. Identify the sentence ...
A vast blanket of pollution stretching across South Asia is cutting down sunlight by 10 percent over India.
The following Hindi sentences are followed by four different ways in which they can be paraphrased in English language. Identify the option wh...
निम्नलिखित में से सभी किसी न किसी प्रकार से Current का अर्थ प्र...
निम्नलिखित विकल्पों में से Prepaid expenses शब्द का कौन सा पर्याय ह...
निम्न हिन्दी शब्दों का सही अँग्रेजी शब्दार्थ बताएं-
...The fact that the world is warming , is also controversial among scientists.
निम्नलिखित में से कौन सा शब्द affirmation का हिंदी पर्याय है ?
The following English sentences are followed by four different ways in which they can be paraphrased in Hindi language. Identify the sentence ...
निम्नलिखित में से साख विनियोज़न शब्द का वित्तीय शब्...
