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Creator:: Seid, Ruth, 1926-
Resource Type:: Masters Thesis
Full Text:: ALCOHOL SOLUBL.ES 18 VI. CONSTITUENTS OF HOT WATER SOLUBLES 19 Carbohydrate material 19 Tannin 25

Creator:: Diehl, John Harvey
Abstract:: Phenols from defatted walnuts were extracted with absolute methanol. The phenols were divided into four groups on the basis of molecular size. The antagonism of each group towards Escherichia coli, Staphylococcus aureus, and Aspergillus flavus was determined. Small polymers were the best antagonists of E_„ coli and Staph. aureus followed...
Resource Type:: Masters Thesis
Full Text:: Studies 16 RESULTS AND DISCUSSION 17 Growth and Maturation 17 Changes in Tannin Content During

Creator:: Wallace, Kathryn Anne
Abstract:: Equal molar amounts of (+)-catechin and N-Hydroxymethylacetamide were reacted under acidic conditions. Thin-layer chromatography (TLC) was used to monitor the reaction. The reaction products were isolated by column chromatography using Sephadex LH-20 and elution with 95 percent ethanol. Three reaction products isolated included one disubstituted and two monosubstituted compounds. The...
Resource Type:: Masters Thesis

Creator:: Cohen, Seth D.
Abstract:: Many climatic factors influence grape berry composition including nutrient status, water availability, biotic stress, sun exposure and temperature. Previous research examined the effects of many factors listed above and much progress has been made. It is often difficult, however, to separate effects that typically confound each other, such as sun...
Resource Type:: Masters Thesis
Full Text:: where larger tannin polymers are associated with astringency and ‘mouthfeel’ or ‘texture’ of wine

Creator:: Smith, Mark R.
Abstract:: A number of methods to isolate and quantify protein in Pinot noir wines were evaluated. The combination of precipitation by acetone containing 10% w/v trichloroacetic acid followed by quantification with the Bradford assay, reported in yeast invertase equivalents yielded the most accurate results when compared to micro-Kjeldahl analysis. The technique...
Resource Type:: Masters Thesis
Full Text:: and Tannin in Pinot Noir Wines. Abstract Approved

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