What is the secret behind the color of purple cabbage?


Nature practices color in many different ways. The purple color in cabbage grows from a group of pigment fragments called anthocyanins. It turns out that anthocyanins are detected in flower petals and it makes them become red in the fall. Anthocyanins are plant pigments known as flavonoids and generate red, pink, violet and magenta colors in the different plant parts.

The anthocyanidin assembly controls the color of the pigment. The electrons of the group structures communicate with incoming light and assimilate various wavelengths. The molecule that goes below resembles purplish-red because the electrons occupy yellow, green and blue divisions of the noticeable spectrum. One of the things that turn the color of anthocyanins is some level of hallucinogen or antacid that is also known as pH throughout the molecule. Now, the shade of the anthocyanin is influenced by the pH of the environment, these molecules can help you know the pH of any material. If you execute a decoction of red cabbage juice, it will replace the color when blended with enzymes of various ph. The anthocyanin becomes bright pink in acids, reddish-purple in impartial solutions and green in alkaline or essential solutions. This experiment teaches you how to make a pH indicator from red cabbage!

By steaming the red cabbage petals, you excerpt a variety of pigment molecules called anthocyanins into solution. Anthocyanin molecules will develop their color depending upon the pH of their surroundings and can register the pH of a solution. This research will tell us whether an essence is an acid or base, but not the correct value of pH the pH scale classifies from the acid (0-6), through vague (7) to base (8-14). If you ever wanted to test your cabbage juice pH indicator, the way to do it is, test your substances with the different quantitative indicators and then compare those results to the colors of the cabbage juice pH indicator in the extracts. Litmus paper can be collected from several scientific suppliers (i.e. Fisher Scientific, Carolina Biological, Edmund Scientific) or from your neighborhood swimming pool store.