Tannin is a chemically stable phenolic compound found in plant leaves, fruits, and roots. It enters the soil from plant detritus, but what happens after it enters the soil is unknown. It has biological importance due to its action as an antioxidant and its ability to precipitate proteins. This unique ability to interact with proteins, […]
C19-P: Analyzing Biodegradation of Tannins in Soil
Tannins are a class of polyphenols that precipitate proteins and quench oxidizing species. Condensed tannins, which are multiple flavonoids linked by carbon-carbon bonds, are present in soil but their metabolic fate and effect on the microbiome is unknown. In this study we analyzed possible trends in condensed tannins biodegradation when microbes are present in the […]
B28: Separation and Characterization of Polyphenols in Salix Pulchra for Future Isotopic Studies
The availability of C13 labeled willow tissue (Salix pulchra) has pushed the need for extraction and characterization of polyphenolic compounds within the plant. A method of separation and purification of tannin from the willow plant has been established, but the identity of the extractable non-tannin polyphenols present in willow is not currently known. In order […]
B25: Enzymatic and Chemical Models of Tannin Degradation
Tannins are a group of large polyphenolic compounds found in many plants. Studying how tannins break down could further the understanding of the importance of tannin in natural systems. This experiment focused on two distinct models of degradation: enzymatic and chemical. Polyphenol oxidase, an enzyme that will oxidize phenolic compounds, was used with both caffeic […]
B23: Ecological Resource Sharing Between Deer Species Evaluated by Tannin Diets
Tannins are polyphenolic compounds which are plentiful in herbivore plants. The ability of tannins to precipitate proteins has been of interest to biochemists , ecologists, and animal physiologists for years. The impact of condensed tannin on protein digestibility is evaluated with in vivo digestion trials with White-Tailed Deer and Mule Deer. The digestion trials are […]
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