Generally the fruit changes color from green ( when young ) to yellow, orange, or red ( when ripe ). Only a few types of fruits that remain green when ripe. One of them is the kiwi.
The green color is caused by the pigment chlorophyll levels remained unchanged in the ripening process. Foodstuffs generally contain more chlorophyll is good source of magnesium.
Many research results have shown that chlorophyll antimutagenik properties ( preventing the spread of cancer-causing genes ). This occurs because the nature of chlorophyll binding reaction can inhibit carcinogens with DNA compounds, and compounds to counteract the radical reaction. Chlorophyll can also protect the immune system through the ability to reduce reactivity of radical compounds.