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United States Department of Agriculture

Agricultural Research Service

Research Project: ENHANCED UTILIZATION OF CARBOHYDRATES AND POLYSACCHARIDES FROM CITRUS PROCESSING WASTE STREAMS

Location:

Project Number: 6621-41000-013-00
Project Type: Appropriated

Start Date: Jun 16, 2009
End Date: Dec 08, 2010

Objective:
Develop green and scalable integrated processes which improve production economics to obtain modified pectins, ethanol or other biofuels, and other co-products such as limonene, and flavonoids from citrus process waste streams for use as commercially viable bioproducts.

Approach:
Improve on the economics to obtain modified pectins and other high value products from citrus waste streams through modifications which incorporate extraction of pectin or a modified pectin fraction as part of an integrated process to recover limonene and produce ethanol from the fermentable sugars and cellulose contained in citrus processing or other agricultural waste. The developed technology will be based on enzymatic and/or chemical modifications to pectin and other polysaccharides to incorporate and characterize novel functionality, and then target utilization in non-food applications such as ion exchange materials, suspension aids, viscosity enhancers, metal chelation, and water retention agents. Development of the new products based on citrus or other agricultural polysaccharides will emphasize use of green applications with cost effective extraction processes or uses which allow use of crude fractions requiring minimal extraction.

Last Modified: 10/24/2014
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