Description

Nutri-Rehyd is a specific inactive yeast nutrient for dry yeast rehydration to provide organic nitrogen, vitamins, minerals, and survival factor (free unsaturated fatty acid and ergosterol), avoid fermentation problems, such as sluggish and stuck fermentations and reduce the production of off-flavors.

Characteristic

Nutri-Rehyd is produced through a specific autolysis process in order to obtain high levels of free unsaturated fatty acids and sterols. Unsaturated fatty acids and sterols play an essential role in the stability of membranes, by affecting fluidity and permeability. They are the key factors in the yeast resistance to high ethanol.

Nutri-Rehyd provides minerals which are essential enzyme cofactors in yeast metabolism, such as Mg, Mn, Zn. Mg2+ plays a fundamental role in the growth and metabolism of yeast and is required as a cofactor by over 300 enzymes, including the activity of glycolytic, alcoholic and fatty acid biosynthesis. When magnesium in the growth medium becomes limiting, cells not only cease to grow but actually die.

Nutri-Rehyd can help yeast to reduce the harm of inorganic salts and sugar in high gravity.

1. Product characteristics

- Aspect: powder

- Colour: brown

- Moisture: < 6.0%

- Amino acid nitrogen: ≥ 1.5%

- Protein: ≥ 30.0%

2. Microbial characteristics

- Yeast: ≤ 10² CFU/g

- Lactic bacteria: < 10³ CFU/g

- Moulds: ≤ 10² CFU/g

- Aerobic plate count: ≤ 10⁴ CFU/g

- Coliforms: ≤ 10² CFU/g

- Salmonella: Absence/25 g

- Escherichia coli: Absence/25 g

- Staphylococci: Absence/25 g

3. Heavy metal characteristics

- Lead: < 2 mg/kg

- Mercury: < 1 mg/kg

- Arsenic: < 3 mg/kg

- Cadmium: < 1 mg/kg

Instructions for Use

Store in a cool and dry place. After opening the yeast must be used as soon as possible. Avoiding long-term storage at temperature above 30 °C.

Recommended dosage: 0.3-0.5 g/L.

Adding Nutri-Rehyd into the rehydration water before the addition of dry yeast. Suspend Nutri-Rehyd in 10-15 times water about 40 °C, then add the active dry yeasts to rehydrate yeast at 35-40 °C for 20-30 mins.