In France, the permitted total dose of SO2 has steadily decreased since 1907, falling from 450 mg/L to 350 mg/L in 1926.
In 2009 these values were again revised downwards by 10 mg/L.
Today, the use of sulfites lies at the centre of technical concerns.
Why use chitosan?
Chitosan is a cationic polysaccharide produced by deacetylation of chitin. Chitin is a polymer naturally present in the cell wall of Aspergillus niger.
The properties of chitosan are determined by the ratio of its degree of acetylation to its degree of deacetylation, which in turn determines its solubility in an acid medium and the flexibility of its macromolecular chains, and hence its conformation and viscosity in solution.
KTS® and biocontrol at Martin Vialatte®:
Results of an innovative study carried out by Martin Vialatte®’s Innovation, Research and Development department.
To find out more, discover the technical booklet.