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Antioxidant activity of astaxanthin Health Articles | August 3 curry 1 shoes for sale , 2012
Lipid due to the destruction of the free radical chain reaction, resulting in biofilm structure and function change; protein oxidation is very sensitive, especially the sulfur amino acid; bases and pe...


Lipid due to the destruction of the free radical chain reaction, resulting in biofilm structure and function change; protein oxidation is very sensitive, especially the sulfur amino acid; bases and pentose in DNA molecules are easily oxidized position, the oxidation can lead to DNA breaks, base degradation and protein cross-linking, making the genetic material to mutate or cause cell death.


Carotenoids by physical quenching Singlet oxygen under armour verge shoes sale , singlet-oxygen additional energy transfer to carotenoid, carotenoids accept energy into triplet (3Car3), then release the extra energy through exothermic go to the ground state (1Car), which is a physical process, the structure of the carotenoid is not changed, you can continue to quench singlet oxygen. The speed of chemical reaction can be used to describe the rate constant (k), the faster the reaction, the greater the rate constant. Carotenoid quencher of singlet oxygen under armour newell ridge shoes sale , the speed can be described by the rate constant (kq) kq value of carotenoids reflect the size of the potential effectiveness of its antioxidant activity, kq, higher the value, the faster the reaction with singlet oxygen carotenoids to quench singlet oxygen, kq, higher the value, the more a certain amount of carotenoids per unit time, quenching singlet oxygen; under armour threadborne shoes sale , of course, values of kq, and experimental conditions (such as temperature, solvent, photosensitizer types, determination methods) are closely related, so the size of the kq value of more carotenoids, the experimental conditions must be the same.


It can be seen from the data of carotenoids singlet oxygen quenching ability and its number of conjugated double bonds under armour hovr shoes sale , and the end of the ionone ring is not obvious. 4, 4 'carbonyl (astaxanthin and angular zeaxanthin) can improve the ability to quench singlet oxygen the astaxanthin quenching singlet oxygen capacity of the strongest, 100 times that of the ±2 tocopherol, and glutathione the reaction rate of 1125 of ±2 tocopherol, but in vivo environment and experimental conditions very different from the results of chemical experiments by astaxanthin supplier does not reflect the real situation