Flour and water paste

Flour and water paste

H460/0637 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 34.7MB

Downloadable file size: 1.5MB

Price image Pricing

Please login to use the price calculator


Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: Flour and water paste. Early civilisations used the paste created by mixing flour and water as an early form of glue. Wheat flour contains a high level of the proteins glutenin and gliadin which, when added to a liquid and mixed, combine to form gluten. The presence of gluten in a suspension (colloid) with water, creates a sticky, elastic mixture. Heating or drying, de-hydrates the mix and coagulates the gluten. This, along with the starch also present in flour, stabilises the shape of the final product. Some early bricks were made from straw soaked in flour and water paste, which was then baked in the sun.

Release details: Model release not required. Property release not required.

Keywords: adhesive, apron, bioadhesive, biochemical, biochemistry, bowl, brick, bricks, caucasian, chemical, chemistry, coagulate, coagulation, colloid, early glue, elastic, flour, food, gliadin, glue, gluten, glutenin, hand, hands, historical, history, human, kitchen, mix, mixing, mixture, paste, people, person, protein, proteins, science education, sticky, suspension, wheat flour, white

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.