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Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
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Title: Chemical Brown Stain in Sugar Pine

Source: Forest Products Research Society Journal, Volume 2, Number 5, December 1952; pp. 232-236.

Author(s): Millett, Merrill A.

Publication Year: 1952  View PDF »

Category: Journal Articles

Abstract: The known facts suggested that the materials responsible for staining. are present in the sap and are concentrated at the surface during drying. Results showed that sugars and other materials present in the fraction of high water solubility are the substances primarily responsible for staining. This information was used to relate sugar pine staining to the browning that occurs when foods are dehydrated. Such nonenzymatic browning is known to he caused by furan derivatives, which are the primary degradation products of sugars. Stain-retardant chemicals showed little promise when used as simple dip treatments. It was concluded that the best means of controlling brown stain at the present time is to secure better coordination between cutting and processing operations, and to use moderate kiln-drying schedules.

Keywords: Wood properties. stains, wood chemistry. wood extractives, drying, chemical treatment

Publication Review Process: Non-Refereed (Other)

File size: 213 kb(s)

Date posted: 01/26/2015
RITS Product ID: 71932

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