Mexico’s Prickly Pear Cactus: Energy Source of the Future?
Author: Yemeli Ortega | Published: August 17, 2017
The prickly pear cactus is such a powerful symbol in Mexico that they put it smack in the middle of the national flag.
It was considered sacred by the ancient Aztecs, and modern-day Mexicans eat it, drink it, and even use it in medicines and shampoos.
Now scientists have come up with a new use for the bright green plant: producing renewable energy.
Instantly recognizable with its jumble of spiny discs—its bright red fruit protruding like fat fingers from each one—the prickly pear cactus is farmed on a massive scale in Mexico.
Its soft inner flesh plays a starring role in a plethora of favorite national dishes: tacos, soups, salads, jams and even candies.
Believed by some to have healing powers, the cactus is also used in blood pressure medications, anti-hair loss shampoos, skin creams and diet juices.
“Since before the Spanish conquistadors arrived, we have eaten prickly pear cactus. It’s our tradition and our culture,” said Israel Vazquez, who has farmed the cactus for the past 20 years on a small plot in Milpa Alta, a neighborhood on Mexico City’s south side.
The cactus’s thick outer layer, with all those spines, has always been a waste product—until researchers developed a biogas generator to turn it into electricity.