Optimization of tannin isolation from acorn and application in leather processing

Tannin-based biosorbents for environmental applications – A review

“…The extraction efficiency can be also improved by organic solvents, such as ethanol, methanol, acetone and hexane [34][35][36][37]. It is however important to consider the principles of green extractions and one of them advocates for the ''use of alternative solvents and principally water or agro-solvents" [28].…”

An ecological approach to discover new bioactive extracts and products: the case of extremophile plants

“…Tannin content (TC) determination was achieved according to the hide powder method . The extracts (10 mg/ml) were mixed with 8 mg of hide powder.…”

High pressure vegetable tanning of sheepskins using supercritical carbon dioxide

“…The shrinkage temperatures of produced leathers by PVTs were in the range typical of commercial leathers produced with CVT processes, from 70 to 85 • C [27,31]. No differences were observed in regards to hydrothermal stability of the skins when compared with the literature.…”