Methylene blue reduction time.

Methylene blue reduction time.

C029/1103 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 50.0MB

Downloadable file size: 2.8MB

Price image Pricing

Please login to use the price calculator


Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: Methylene blue reduction time. In the reaction, protease breaks down milk protein causing the blue methylene dye, widely used as a redox indicator, to decolourise. Test tubes show the start, middle and end point and this has to be timed. To get a reliable figure the experiment should be repeated several times. The pH value of the milk will effect the action of protease. This test can be part of the assessment of the quality of raw milk for its suitability for further industrial processing.

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

Keywords: blue methylene, decolorize, decolourise, dye, end point, experiment, industrial processing, middle, milk, milk protein, no-one, nobody, ph value, protease, raw milk, reaction, redox indicator, reduction time, start, test, test tubes, timed

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