Index Catalog // ScholarsArchive@OSU

Douglas-fir bark : structure and alkaline degradation of a glucomannan

Creator:: Fernandez, Elvira Cabauatan
Resource Type:: Dissertation

Anatomy of chemically and mechanically isolated bark sclereids

Creator:: Lee, Yie-hsiang Lisa
Abstract:: Sclereids are sclerenchyma cells having thick lignified secondary walls. Douglas-fir sclereids, also called bast fibers, are long (1 mm in length), sharply pointed, spindle-shaped fibers of a red-brown color. Sclereids from Douglas-fir bark and nine other western coniferous species were examined for their morphology. The external surface characteristics of sclereids...
Resource Type:: Masters Thesis

Douglas-fir bark : carbohydrates solubilized by the acidified sodium chlorite delignification reaction

Creator:: Lai, Yu-chai Leslie
Abstract:: The inner bark of Douglas-fir was successively extracted with ethanol-water (4:1 v/v), benzene-ethanol (2:1, v./iv), water, and 0.5% aqueous ammonium oxalate solution. The residue was reacted with acidified sodium chlorite, a commonly used reagent to separate lignin from carbohydrates. In general the reaction dissolves the lignin and leaves the carbohydrates...
Resource Type:: Masters Thesis

Drying wood and bark fuels with boiler exhaust gases

Creator:: Oswald, Kurt Daniel
Resource Type:: Masters Thesis

Ultrastructure of parenchyma and sclereids in Douglas-fir [Pseudotsuga menziesii(Mirb.)Franco] bark

Creator:: Dougal, Edward Francis
Abstract:: Because Douglas-fir [Pseudotsuga menziesii(Mirb.)Franco] bark is a raw material produced in our renewable forests along with wood, an understanding of the ultrastructure of bark cells is of paramount importance if wood technologists are to utilize the bark to the fullest potential. The objectives of this study were to develop microscopic...
Resource Type:: Dissertation
Full Text:: : Ultrastructure of Parenchyma and Sclereids in Douglas-fir [Pseudotsuga menziesii(Mirb.)Franco] Bark Robert L

Douglas-fir bark : n-hexane-soluble fraction

Creator:: Fang, Henry Hai-Loong
Abstract:: Douglas-fir bark was extracted with n-hexane yielding a light colored, "wax-like" solid as the n-hexane soluble fraction. The chemical constituents of this n-hexane soluble fraction were partially resolved by column chromatography using Silica Gel G as stationary phase and chloroform-n-hexane (3:1 v/v) as developing solvent. Several bands were observed under...
Resource Type:: Masters Thesis

The chemical composition of the bark extractives of four species of the genus Pseudotsuga

Creator:: Manners, Gary Duane
Abstract:: This is the first detailed chromatographic examination of Pseudotsuga menzesii and three other Pseudotsuga species (P. macrocarpa, P. japonica, and P. wilsoniana). The whole bark of these four species was sequentially extracted with hexane, benzene, ethyl ether, ethyl alcohol and water. Paper and thin layer chromatographic techniques were coupled with...
Resource Type:: Masters Thesis

Low molecular weight polyphenols in Douglas-fir outer bark : extraction, isolation and structure determination

Creator:: Chen, Jie
Resource Type:: Masters Thesis
Full Text:: in Douglas-Fir Outer Bark: Extraction, Isolation and Structure Determination Abstract approved: Low

Douglas-fir inner bark procyanidins : sulfonation, isolation and characterization

Creator:: Bae, Youngsoo
Abstract:: See pdf
Resource Type:: Dissertation

Douglas-fir bark : characterization of a condensed tannin extract

Creator:: Song, Hong-keun
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Douglas-fir bark : structure and alkaline degradation of a glucomannan

Anatomy of chemically and mechanically isolated bark sclereids

Douglas-fir bark : carbohydrates solubilized by the acidified sodium chlorite delignification reaction

Drying wood and bark fuels with boiler exhaust gases

Ultrastructure of parenchyma and sclereids in Douglas-fir [Pseudotsuga menziesii(Mirb.)Franco] bark

Douglas-fir bark : n-hexane-soluble fraction

The chemical composition of the bark extractives of four species of the genus Pseudotsuga

Low molecular weight polyphenols in Douglas-fir outer bark : extraction, isolation and structure determination

Douglas-fir inner bark procyanidins : sulfonation, isolation and characterization

Douglas-fir bark : characterization of a condensed tannin extract

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