Tannin from mangrove species has also been used for curing and dyeing of fishing nets made of natural fibre to make the nets more resistant to biological decay.
用红树林树种制造的单宁还用来天然纤维织成的渔网的加工和染色， 以提高其抗生物老化能力。
2
Tannin, a natural component of red wines, found in grape seed, skins and stems.
单宁，葡萄酒中含有的一种天然成分。在葡萄籽，葡萄皮和葡萄茎中含量高。
3
The biodegradable wood adhesives manufactured from natural resourcesincluding lignin based, tannin based and soybean protein based adhesives will increase.