Tannins are a heterogeneous group of polyphenolic compounds. They are usually divided into two subgroups, the hydrolyzable and the condensed tannins. Hydrolyzable tannins possess a polyol core to which galloyl groups are esterified, while condensed tannins are oligomers of two or more flavan-3-ols. Both types show an enormous diversity in the degree of polymerization, monomer composition, and in decoration with other phenolic compounds. A handful of studies have also found a correlation between tannin accumulation and nematode resistance.
Lifeasible, as a leading global company, is committed to helping our customers achieve effective and successful research. We provide analysis services for controlling nematodes by tannins, including hydrolyzable and the condensed tannins. We always deliver reliable results and reports on time to our customers worldwide.
Fig.1 Types of tannins and their basic structures.
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