Innovation Type - Method

Potential beneficiaries - Wineries

WHY ACID SODIUM DIHYDROXIFUMARATE?

The wineries permanently seek the new methods of raw materials stabilization. Our proposal is based on the obtaining of acid sodium dihidroxifumarate which can be subsequently used as antioxidant for stabilization of raw materials for wine-making. Its application in concentrations 90-130mg/l (depending on various parameters) can substitute about 50-60% of sulphurous anhydride very toxic for human organism.
Method of acid sodium dihidroxifumarate obtaining applied currently provides the yield of 8,8% only. That is why we propose to modify conditions and optimization of acid sodium dihidroxifumarate process to obtain higher yield.
Our process includes:
- Oxidation of tartaric acid with hydrogen peroxide (40%) in the presence of catalyst - Mohr salt and hydroquinone as reducer;
- Subsequent adding of water solution of soduim chloride on cold.

ADVANTAGES

• We substitute the toxic sulphurous anhydride with acid sodium dihidroxifumarate - ecologic product
• We synthesize acid sodium dihidroxifumarate from tartaric acid, obtained in its turn from winery by-products: yeasts, vinase, etc.
• We ensure the 36,7% yield of acid sodium dihidroxifumarate synthesis, i.e. 4,1 times higher than accfording to the proptotype procedure.

Current stage of development - Bench-scale tests.

Desired collaboration - Invesments for pilot equipment manufacturing, optimization of process parameters and obtaining of acid sodium dihidroxifumarate in large amounts.