The tannin extracted from the bark and wood was important in the leather industry.
It must be eaten ripe, since latex and tannin present in the unripe fruit give it an unpleasantly astringent taste.
Honeysuckle imparts a raw sweetness with hints of tannin .
In juvenile plants, the relative amount of tannin increased in March, decreased in April and July, and increased again in October.
The association of tannin with caffeine allows the caffeine to be released slowly into the blood.
Additionally, the content of another product of the phenyl propanoid pathway, tannin , was examined in buckwheat plants.
Our perception of sweetness can be affected by a number of other factors, such as temperature, tannin and carbon dioxide, not to mention alcohol.
Another common problem with cedar, redwood and certain other species is a natural resin in the wood called tannin .
Rooibos tea contains no caffeine and is very low in tannin .
Chipped chestnut wood and bark also were used as a source of tannin for the leather industry.