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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number D1241-1

Technician John Michael Henderson combines dilute sulfuric acid with ground wheat straw as a pretreatment. The wheat straw is then autoclaved and transferred to a bioreactor for butanol production.


Photo by Peggy Greb.

640 pixels wide: (d1241-1.jpg)

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Last Modified: 9/30/2008
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