Resumen de Scanner instantly divines how nutritious food is
Farmers can now zap their crops with a handheld scanner to instantly determine nutritional content, which could prove crucial in mitigating the effects of climate change on food quality. It also brings similar consumer gadgets a step closer--so we can find out what is in our food for ourselves. The device, called GrainSense, analyses wheat, oats, rye and barley by scanning a sample with various frequencies of near-infrared light. The amount of each type of light that is absorbed allows it to precisely determine the levels of protein, moisture, oil and carbohydrate in the grain. This technique has been used for decades in the lab, but this is the first time it has been available instantly on a handheld device.
