Archive for antioxidants

You are browsing the archives of antioxidants.

Top antioxidant fruits and vegetables

More on:

Top Antioxidant Foods
[ORAC* units per 100 grams**]

Fruits

Vegetables

Prunes
5770

Kale
1770

Raisins
2830

Spinach
1260

Blueberries
2400

Brussels sprouts
980

Blackberries
2036

Alfalfa sprouts
930

Strawberries
1540

Broccoli florets
890

Raspberries
1220

Beets
840

Plums
949

Red bell peppers
710

Oranges
750

Onions
450

Red grapes
739

Corn
400

Cherries
670

Eggplant
390

* Oxygen Radical Absorbance Capacity

**About 3.5 ounces

Evaluation of Phenolic Compounds in Commercial Fruit Juices and Fruit Drinks

More on:

The total phenolic content of 13 commercially available fruit juices and juice drinks, selected to represent the most popular juice flavors in the United Kingdom, were analyzed using the Folin-Ciocalteu assay. Individual phenolic compounds were identified and quantified using HPLC-PDA-MS2. The catechin content and degree of polymerization of proanthocyanidins were also analyzed. Purple grape juice [...]

Lutein

More on:

Lutein (from Latin lutea meaning “yellow”) is one of over 600 known naturally occurring carotenoids. Found in green leafy vegetables such as spinach and kale, lutein is employed by organisms as an antioxidant and for blue light absorption. Lutein is covalently bound to one or more fatty acids present in some fruits and flowers, notably [...]

Flavonoids

More on:

Flavonoids (bioflavonoids in the media) are phenylpronanoids, a class of plant-derived organic compounds that are biosynthesized from the amino acid phenylalanine and belonging to the polyphenol group, characterized by the presence of more than one phenol group per molecule. Flavonoids are most commonly known for their antioxidant activity.

Vitamin C

More on:

Vitamin C or L-ascorbate is an essential nutrient required to allow a range of essential metabolic reactions in animals and plants, and widely known as the vitamin that prevents scurvy in humans. The pharmacophore of vitamin C is the ascorbate ion. In living organisms, ascorbate is an antioxidant, as it protects the body against oxidative [...]

Retinol

More on:

Retinol, the animal form of vitamin A, is a yellow fat-soluble, antioxidant vitamin important in vision and bone growth. It belongs to the family of chemical compounds known as retinoids. Retinol is ingested in a precursor form; animal sources (milk and eggs) contain retinyl esters, whereas plants (carrots, spinach) contain pro-vitamin A carotenoids. Hydrolysis of [...]

Mortality in randomized trials of antioxidant supplements for primary and secondary prevention: systematic review and meta-analysis.

More on:

The study was led by the Cochrane Hepato-Biliary Group at Copenhagen University Hospital in Denmark. The researchers first analyzed 68 studies involving 232,606 people and found no significant effect on mortality — neither good nor bad — linked to taking antioxidants. When they eliminated the lower-quality studies and looked only at the most trustworthy ones, [...]