Dictionary > Tannin

Tannin

tannin
(Science: chemistry plant biology) bitter-tasting, complex aromatic compounds found in the vacuoles of certain plant cells, for example in bark.
Some are glucosides, possibly giving protection to the plant or concerned with pigment formation.They are strongly astringent and are used in tanning and dyeing.
Any of various complex phenolic substances of plant origin; used in tanning and in medicine.An organic compound that is found commonly in plants after pathogenic attack in the form of a gall. Tannins are an acidic chemical that is also found commonly is bark, leaves and unripe fruits.


You will also like...

Population Regulation in an Ecosystem
Population Regulation in an Ecosystem

With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

The process of photosynthesis
Photosynthesis – Photolysis and Carbon Fixation

Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..

Direct and indirect physiologic effects of growth hormone
Animal Growth Hormones

Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..

Geological Periods
Geological Periods

Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

Stem
Stems

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

Flowers and tiny fruits of the pomegranate plant
Fruits, Flowers, and Seeds

This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..

Related Articles...

No related articles found

See all Related Topics