25.0 MB (2.3 MB compressed)
2392 x 3657 pixels
20.3 x 31.0 cm ⏐ 8.0 x 12.2 in (300dpi)
PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY PEGGY GREB / US DEPARTMENT OF AGRICULTURE / SCIENCE PHOTO LIBRARY
Editorial use only.
EDITORIAL USE ONLY. New materials research on zein. Chemical engineer noting down readings from a device being used to monitor a small-scale laboratory tank. This tank is being used to separate solid residue from a liquid extracted from maize (Zea mays). The liquid will be processed further to separate out a chemical called zein. Zein is a protein found in maize that has a variety of applications in the food and materials industries. The new research involves its use in bioplastics. The raw materials used to make bioplastics are renewable, making bioplastics a more sustainable product than the tradiational plastics made from finite resources such as oil. Photographed in the USA.
Model release not available. Property release not required.