Vijay Pandey

  • Amina Kessaissiahas quoted2 years ago
    Defensive Mechanism of Natural Antioxidants
  • Amina Kessaissiahas quoted2 years ago
    Natural antioxidants are those antioxidants that are found in natural sources, such as fruits, vegetables, milk and meats. There are several common natural antioxidants which are found in everyday foods, the most common of which being Vitamin C (ascorbic acid), Vitamin ? (tocopherols), Vitamin A (carotenoids), various polyphenols including flavonoids, and anthocyanins (a type of flavonoid), Lycopene (a type of carotenoid) and Coenzyme Q10. Figures show the chemical structure of some natural antioxidants (Fig. 1.1).
  • Amina Kessaissiahas quoted2 years ago
    Each natural antioxidant is available in vastly different sources and is consumed in a different manner. Some are consumed as fruits, vegetables in the fresh or processed forms. Others are taken in the form of drinks like tea, wine, fruit juice etc. (Table 1.1).
  • Amina Kessaissiahas quoted2 years ago
    Compound NameNatural source
    Vitamin C (ascorbic acid)

    Most citrus fruits, some vegetables, tomatoes

    Vitamin E/Tocopherols

    Cereal grains, broccoli, sprouts, cauliflower,

    cooking oils (olive, sunflower, safflower), almond, hazelnuts

    Beta-Carotene

    Vegetables such as red paprika, spinach, parsley, and tomatoes, carrots, sweet potatoes, apricots, papayas

    Flavonoids (a type of polyphenol)
  • Amina Kessaissiahas quoted2 years ago
    Potatoes, tomatoes, lettuce, onions, wheat, dark chocolate, Concord grapes, red wine, black tea

    Anthocyanins (a type of flavonoid)

    High content in red wines, some in whiskey

    Various polyphenols

    Teas (mainly green, some rooibos), as well as many red/purple hued fruits or vegetables, such as Concord grapes, red cabbage, blueberries, blackberries etc.

    Lycopene

    Tomatoes, papaya, watermelon, pink grapefruit, guava, the skin of red grapes

    CoQ10 (an antioxidant enzyme)

    Wheat bran, fish, viscera meats (e.g. Chicken liver)
  • Amina Kessaissiahas quoted2 years ago
    Types of Natural Antioxidants
  • Amina Kessaissiahas quoted2 years ago
    β-carotene (which can be thought of interchangeably with Vitamin A) is a fat-soluble antioxidant member of the carotenoid family. Vitamin A is mostly found in vegetables and fruits such as carrots, sweet potatoes, apr
  • Amina Kessaissiahas quoted2 years ago
    Compound NameHow to optimize consumption
    Ascorbic acid (Vitamin C)
  • Amina Kessaissiahas quoted2 years ago
    Compound NameHow to optimize consumption
    Ascorbic acid (Vitamin C)
  • Amina Kessaissiahas quoted2 years ago
    Phytochemicals are not classified as vitamins, but they can contribute greatly to health and wellbeing.
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