Bioconversion of Cheese Waste (Whey)

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Description

The US dairy industry produces 67 billion pounds of cheese whey annually. A waste by-product of cheese production, whey consists of water, milk sugar (lactose), casein (protein), and salts amounting to about 7% total solids. Ultrafiltration is used to concentrate cheese whey into a protein-rich foodstuff; however, it too produces a waste stream, known as ''whey permeate,'' (rejected water, lactose, and salts from the membrane). Whey permeate contains about 4.5% lactose and requires treatment to reduce the high BOD (biological oxygen demand) before disposal. Ab Initio, a small business with strong chemistry and dairy processing background, desired help in developing ... continued below

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6 pages

Creation Information

Bohnert, G.W. March 11, 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 37 times . More information about this report can be viewed below.

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  • Kansas City Plant (U.S.)
    Publisher Info: Kansas City Plant, Kansas City, MO (United States)
    Place of Publication: Kansas City, Missouri

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Description

The US dairy industry produces 67 billion pounds of cheese whey annually. A waste by-product of cheese production, whey consists of water, milk sugar (lactose), casein (protein), and salts amounting to about 7% total solids. Ultrafiltration is used to concentrate cheese whey into a protein-rich foodstuff; however, it too produces a waste stream, known as ''whey permeate,'' (rejected water, lactose, and salts from the membrane). Whey permeate contains about 4.5% lactose and requires treatment to reduce the high BOD (biological oxygen demand) before disposal. Ab Initio, a small business with strong chemistry and dairy processing background, desired help in developing methods for bioconversion of whey permeate lactose into lactic acid. Lactic acid is an organic acid primarily used as an acidulant in the food industry. More recently it has been used to produce polylactic acid, a biodegradable polymer and as a new method to treat meat carcasses to combat E. coli bacteria. Conversion of whey permeate to lactic acid is environmentally sound because it produces a valued product from an otherwise waste stream. FM&T has expertise in bioconversion processes and analytical techniques necessary to characterize biomass functions. The necessary engineering and analytical services for pilot biomass monitoring, process development, and purification of crude lactic acid were available at this facility.

Physical Description

6 pages

Notes

OSTI as DE00016549

Source

  • Other Information: Supercedes report DE98052306

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  • Other: DE98052306
  • Report No.: KCP-613-6022
  • Report No.: ON: DE98052306
  • Report No.: BR: DP
  • Report No.: CRN: 96-KCP-1036
  • Grant Number: AC04-76DP00613
  • DOI: 10.2172/16549 | External Link
  • Office of Scientific & Technical Information Report Number: 16549
  • Archival Resource Key: ark:/67531/metadc618956

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • March 11, 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

Description Last Updated

  • Feb. 20, 2017, 7:14 p.m.

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Citations, Rights, Re-Use

Bohnert, G.W. Bioconversion of Cheese Waste (Whey), report, March 11, 1998; Kansas City, Missouri. (digital.library.unt.edu/ark:/67531/metadc618956/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.