Optiflore O
OptiFlore® O is a complex nutrient (yeast autolysates), rich in organic nitrogen (amino acids, peptides), vitamins, and mineral elements.
Technical Specifications
PHYSICAL
- Appearance and colour: Beige powder
- Solubility: < 80%
COMPOSITION
- Total nitrogen (N): < 11.8%
- Ammonium nitrogen (N): < 0.5%
- Organic nitrogen (N): < 11.8%
- Amino acids (N): between 1.71 and 3.33%
- Humidity: < 7%
LIMITS
- Lead: < 2 mg/kg
- Mercury: < 1 mg/kg
- Arsenic: < 3 mg/kg
- Cadmium: < 1 mg/kg
MICROBIOLOGICAL
- Revivable yeasts: ≤ 102 UFC/g
- Mould: < 103 UFC/g
- Lactic bacteria: < 103 UFC/g
- Acetic bacteria: < 103 UFC/g
- Salmonella: Absence/25g
- Escherichia coli: Absence/1g
- Staphylococci: Absence/1g
- Coliforms: < 102 UFC/g
Features and Benefits
Formulation: Yeast autolysates.
Enological benefits: OptiFlore® O promotes the development of the selected flora and the successful progress of fermentation by providing complete nutrition and detoxifying the environment.
The excess of ammoniacal nitrogen at an early stage of the fermentation often leads to uncontrolled yeast growth and a very quick start of the fermentation. This yeast overpopulation in the must quickly causes an induced nutrient deficiency, increasing the risk of sluggish or stuck fermentation. In this case, undesirable compounds such as sulfur compounds may appear, and a fall in the concentration of aromatic compounds is often observed.
The use of OptiFlore® O avoids this type of situation by ensuring a complete and regular alcoholic fermentation. OptiFlore® O has a triple effect:
- Maintain an optimal physiological state: Besides achieving a better equilibrium between ammoniacal nitrogen and organic nitrogen, OptiFlore® O adds amino acids (gradually absorbed by yeasts) as well as vitamins and minerals.
- Detoxification of the medium: The inactivated yeasts contained in OptiFlore® O help to detoxify the medium and increase the cellular viability of yeasts and lactic bacteria by adsorbing inhibitor compounds (medium chain fatty acids, residual phytosanitary compounds).
- Provide essential micronutrients for bacteria: OptiFlore® O provides fundamental amino acids for the development of lactic bacteria. Beyond its positive effect on alcoholic fermentation, OptiFlore® O promotes a quick start of malolactic fermentation.
Product Applications
Add OptiFlore® O progressively in 10 times its weight in water or must, while continually mixing. Incorporate into the tank and homogenize with a pump-over. OptiFlore® O can be added during the first two-thirds of alcoholic fermentation, either alone or in combination with ammoniacal nitrogen, depending on the level of assimilable nitrogen deficiency in the must.
Dosage:
- 20 to 40 g/hL, based on YAN (Yeast Available Nitrogen) deficiency of the must.
- 10 g/hL of OptiFlore® O provides approximately 5 mg/L of assimilable nitrogen (in α-amino-acids form), which is equivalent to about 20 mg/L in mineral form in terms of fermentation efficiency.
Use during alcoholic fermentation (allowed in the EU only on grapes and fermenting musts).
