BACTILESS™
Pure chitosan and chitin-glucan from Aspergillus niger
BACTILESS™ is a 100% natural non-GMO and non-allergenic biopolymer from fungal Aspergillus niger origin which helps to control the bacteria population in wines. BACTILESS™ formula helps to lower the viable acetic and lactic bacteria population allowing easy removal. Despite its effectiveness towards a wide spectrum of bacteria, BACTILESS™ does not affect yeast population. Its antibacterial effect can be enhanced with the use of SO2, but it does not replace it, as BACTILESS™ doesn’t have an antioxidant and antifungal effect. However, BACTILESS™ can help to reduce the amount of SO2 needed to control lactic and acetic bacteria population. BACTILESS™ helps to avoid the negative sensory impact caused by spoilage bacteria such as acetic acid and biogenic amines.
Chitosan Origin
It is guaranteed through 4 different characteristics:
-Three characteristics established by Resolution OIV/OENO 368/2009:
-a content of residual glucan > at 2 %,
-a settled density ≥ at 0.7 g/cm³
-a viscosity in solution 1 % in acetic acid 1 % < at 15 cPs
-One characteristic established by Res OIV-OENO 728-2025
Isotopic ratios ¹³C/¹²C and ¹⁵N/¹⁴N: δ¹³C > −14.2‰ or δ¹³C < −24.9‰ but if −25.1‰ ≤ δ¹³C ≤ −24.9‰, then δ¹⁵N > +2.7‰.
These characteristics guarantee the authenticity of fungal chitosan from Aspergillus niger and exclude any animal origin, that is not admitted by the OIV.
As part of our commitment to quality, transparency, traceability and responsibility towards our customers and wine consumers, we can provide—upon request— a product certificate with the four characteristics listed above, confirming the fungal origin (Aspergillus niger) of the chitosan used in BACTILESS™.
Technical information
- Application: Control of bacterial spoilage
- Impact: Sensory, contamination control
- Controlling contamination
- Dosage: 20-50