单词	autoxidation
释义	autoxidation /ˌɔːtɒksɪˈdeɪʃ(ə)n / noun [mass noun] Chemistry Spontaneous oxidation of a substance at ambient temperatures in the presence of oxygen.Many fatty foods are susceptible to autoxidation, involving the oxidation of lipid molecules to produce malodorous ketones, alcohols and acids that adversely affect the texture, flavour and taste of food.... It can also be formed by oxidative deoxyribose breakdown or autoxidation of sugars, such as glucose, and it plays a role in the pathophysiology of diabetes and ageing. Lipid oxidation is a major cause of meat quality deterioration, as products of autoxidation of unsaturated fatty acids affect wholesomeness and nutritional value. Derivatives autoxidize (also autoxidise) verb ... Thus reaction further autoxidizes to produce free radicals, hydrogen peroxide and hydroxyl radicals. However, the oxy complex has the potential to autoxidise to form the ferric haemoglobin. In view of therapeutic strategies indole-type substances are to be preferred, as these are devoid of autoxidizing reactions as found with phenolic antioxidants like tocopherol.
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