Catechin Cellulose

TLC coupled to ESI was used for the analysis of monomeric flavanols and proan-thocyanidins from standard stock solutions and from extracts of natural samples. Specifically, standard solutions of (-)-epicatechin, (+)-catechin, procyanidin B2, (-)-epigallocatechin, and extracts of pomegranate peel and juniper seeds were developed on HPTLC cellulose plates and HPTLC silica gel 60 plates. Effects of eluent flow, sorbent material, and developing solvent on TLC-ESI mass spectra were studied. A CAMAG TLC-MS interface was used for the elution of compounds from HPTLC plates into the ESI source. For silica plates, it was necessary to use an HILIC guard column mounted between the CAMAG TLC-MS interface and ion source. This need was caused by the presence of stationary phase impurities in the... 

Mayer W, Merger F. Darstellung optisch aktiver catechine durch racemattrennung mit hilfe der adsorptionschromatographie an cellulose. Liebigs Ann Chem 1961 644 65-9. 

Muhammed S, Acamovic CS, Stewart T (1995) Effects of tannic acid, ellagic acid, gallic acid and catechin on cellulose degradation by the rumen fungus Neocallimastix frontalis strain REl. J Anim Sci 60 550A... 

Woody biomass, either gymnosperms (softwoods) or angiosperms (hardwoods) is inherently anisotropic and hygroscopic it is porous material, with the porosity caused by the hollow fibers that make up the woody material. Any number of wood technology texts (see, for example, Haygreen and Bowyer [13]) describe the physical structure of woody biomass. The porosity or void volume of wood exists as macropores—tracheids, rays, resin canals and related structures useful in moving moisture and nutrients within the tree. Chemically, woody biomass is comprised of cellulose, the hemicelluloses, one or another type of lignin, and extractives such as pinoresinol, catechin, pinosylvin, and related compounds. 

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