Which vitamin does not have antioxidant property?
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|---|---|
151 Citations | A single antioxidant vitamin given at high doses in subjects with high risk of pathologies (smokers, asbestos-exposed subjects) may not have substantial benefits and could even have negative consequences. |
69 Citations | The data validates the role of Vitamin C as an antioxidant under physiologic conditions exhibiting a cross over role as a pro-oxidant in pathological conditions. |
28 Citations | These results indicate that the antioxidant effect of Vitamin E is attenuated when given in conjunction with this statin. |
66 Citations | The results demonstrate the antioxidant potential of vitamin B6. |
639 Citations | The data are consistent and form a strong consensus for investigating the importance of the antioxidant function of vitamin C in the maintenance of human health. |
Related Questions
What is not used as an antioxidant in foods?5 answersNatural antioxidants, such as tocopherols, are extensively used in edible food products like vegetable oils due to health concerns associated with synthetic antioxidants like BHA and BHT. Additionally, plant phenols, essential oils, and chitosan are being explored as safer alternatives to synthetic antioxidants in food applications, aligning with consumer preferences for healthier and less toxic food options. While synthetic antioxidants like BHA, BHT, and TBHQ have been traditionally employed in the food industry to prevent oxidative rancidity and stabilize fats, there is a growing shift towards natural antioxidants like tocopherols, ascorbic acid, and olive biophenols due to consumer safety considerations and changing preferences. Therefore, synthetic antioxidants like BHA and BHT are not commonly used as antioxidants in foods due to health and safety concerns, leading to a greater reliance on natural alternatives.
What are the antioxidant properties of pepper?5 answersPepper has been found to possess antioxidant properties. Various compounds in pepper contribute to its antioxidant activity, including capsaicinoids, capsinoids, vitamins, carotenoids, phenols, and flavonoids. The antioxidant activity of pepper extracts has been demonstrated through methods such as FRAP and DPPH assays, which measure reduction potential and free radical inhibition, respectively. Pepper extracts have shown the ability to scavenge reactive oxygen and nitrogen species, inhibit lipid peroxidation, and regulate antioxidant response elements genes. Additionally, pepper extracts have been found to delay lipid and protein oxidation, improve sensory qualities, and have potential applications in dry-cured meat processing. The essential oils from white and black pepper have also exhibited antioxidant activities, with black pepper showing higher total antioxidant activity and intracellular scavenging ability. Furthermore, the antioxidant capacity of different pepper varieties has been evaluated, with capsaicin content correlating with antioxidant capacity and vasorelaxation properties.
What is the disadvantage of ascorbic acid as anti-oxidant?5 answersAscorbic acid, also known as vitamin C, has strong antioxidant properties and plays a crucial role in balancing the physiological redox state in the body. However, one disadvantage of ascorbic acid as an antioxidant is its potential to have pro-oxidant effects in the presence of free transition metals. This means that in certain conditions, ascorbic acid can actually promote the generation of reactive oxygen species instead of neutralizing them. Additionally, ascorbic acid can induce glycation of cellular proteins, which can negatively impact cell viability and neurite outgrowth. It is important to note that the role of ascorbic acid in preventing DNA mutation and cellular apoptosis, particularly in relation to cancer cells, is still controversial. Therefore, while ascorbic acid has many beneficial antioxidant properties, its pro-oxidant effects and potential adverse effects in certain cellular processes should be considered.
Does Vitamin B2 have nootropic activity?5 answersVitamin B2, also known as riboflavin, has been studied for its effects on various biological processes. However, there is no evidence to suggest that Vitamin B2 has nootropic activity, which refers to its ability to enhance cognitive function. The studies mentioned in the abstracts focused on the role of Vitamin B2 in metabolism, liver function, and cellular energy demands. One study investigated the microbial activities of Vitamin B2-aldehyde and Vitamin B2-acid, but did not mention any cognitive effects. Another study explored the positive inotropic effects of lactoflavin on frog hearts, but did not mention nootropic activity. Additionally, a study found that Vitamin B2 may interfere with the efficacy of apatinib in gastric cancer patients, but did not mention any cognitive effects. Therefore, based on the available information, there is no indication that Vitamin B2 has nootropic activity.
Are antioxidants free radical scavengers?3 answersYes, antioxidants are free radical scavengers. Free radicals are reactive molecules that can cause damage to cells and tissues in the body. Antioxidants work by neutralizing these free radicals, preventing them from causing harm. Several studies have discussed the role of antioxidants in scavenging free radicals. For example, Karurkar et al. found that ethylene diamine conjugated piperonal showed good antioxidant effects in scavenging free radicals. Haider et al. discussed the use of antioxidants as free radical scavengers to combat oxidative stress. Yang et al. evaluated the antioxidant activity of garlic extract and found that it protected against lipid oxidation by scavenging free radicals. Goyal and Kaur reviewed the involvement of antioxidants in preventing degenerative diseases by scavenging free radicals. Nasuhi Pur et al. investigated the antioxidant activity of nanocomposites and found that their antioxidant properties depended on the amount of polyaniline in the composition.
Which vitamin has no antioxidant activity?7 answers