Wednesday, 27 February 2019

Using bacteria to reduce dairy waste

The process of making dairy products generates a lot of waste in the form of acid whey, but a team of scientists from Cornell University, USA, and University of Tübingen, Germany, have discovered a way to turn this waste into useful compounds using bacteria. Acid whey is mostly made up of sugars and acid, but is too acidic to be fed back to livestock as is. Using reactor tanks filled with bacteria found in gut microbial communities, the research team noticed that acid whey could be converted into more useful substances like caproic and caprylic acid, which are natural antimicrobials and can be used in livestock feed. Alternatively, more processing could turn the production waste into compounds that can be further refined into biofuels. In reusing waste products, both options would offer more sustainable and cost-effective alternatives than are currently used.

From: Science Direct

Posted by Dr. Tim Sandle, Pharmaceutical Microbiology

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