A Moment of Science

Guayule- A Promising Crop From The Desert

What in the world is the guayule desert-dwelling shrub?

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Photo: How can I recycle this (flickr)

The guayule plant is that it is a source of natural latex, ideal for making gloves and other natural rubber products.

Have you ever heard of guayule? It’s a desert‑dwelling shrub from the Southwest.

What’s The Deal With Guayule?

One of the most important features of the guayule plant is that it is a source of natural latex, ideal for making gloves and other natural rubber products used in the medical industry. But unlike the more common latex extracted from rubber trees, latex from guayule plants does not contain the proteins that cause severe allergic reactions in some people.

Energy

Crop researchers have discovered that the guayule plant is a potentially valuable source of energy. After the latex is extracted from the plant, you’re left with the ground up stems and branches–called “bagasse.”

Bagasse from guayule contains about as much potential energy per pound as charcoal.

USDA chemists are working to develop efficient methods to convert bagasse into ethanol and other consumer‑ready products.

A Clean Biofuel

Guayule has a few advantages as a source for biofuel. One is that it grows and thrives in the desert. That means it can grow in areas where other crops can’t.

Guayule shrubs can also be harvested year‑round, and require very little fertilizer or chemicals to grow. On top of that, the latex extraction process uses only water, no harsh solvents, so the process of producing latex and bagasse is relatively clean.

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