Chitin-glucan is initially extracted and purified from the mycelium of Aspergillus niger. Our Mushroom Chitin-glucan in the wine industry brings new options to the winemaking industry and winemakers. It’s obtained from the mushroom. Chitin-glucan is a natural polymer.
1. PURPOSE, ORIGIN, AND SCOPE
Chitin-glucan is initially extracted and purified from the mycelium of Aspergillus niger. Our Mushroom Chitin-glucan in the wine industry brings new options to the winemaking industry and winemakers. It’s obtained from the mushroom. Mushroom Chitin-glucan is a natural polymer.
Chitin-glucan is composed of polysaccharides chitin (repeat units Nacetyl-D-glucosamine) and 1,3-ß-glucan (repeat unit D-glucose). The two polymers are covalently connected and form a three-dimensional network.The chitin/glucan ratio ranges from 25:75 to 60:40 (m/m).
It is used as a fining agent of musts during racking in order to reduce colloid content and cloudiness. It is also used for stabilizing wines prior to bottling after alcoholic fermentation. This polymer has a stabilizing capacity with respect to ferric breakages. It also helps eliminate undesirable compounds such as heavy metals (lead, cadmium), mycotoxins, etc.
Chitin-glucan has many industrial applications, such as in food, cosmetics, and textiles industries, because they can be prepared easily without toxins. As food additives, they are commonly used due to their ability to adsorb heavy metal ions.
Chitin-glucan comes in the form of a white, odorless, and flavorless powder. Chitin-glucan is almost completely insoluble in an aqueous or organic medium.
4. Fungal Chitin-glucan for Wine
For wine treatment, the use limit for chitin-glucan is a maximum of 100 g/hl. Application areas:
a) Reduction of heavy metal content, in particular, iron, lead, cadmium, copper: 100g/hL max
b) Prevention of the ferric case, copper casse: 100g/hl max
c) Reduction of possible contaminants, in particular, ochratoxin: 500 g/hL max
d) Reduction of populations of undesirable microorganisms, in particular Brettanomyces, by treatment with chitosan alone: 10 g/hL max Requirements: The doses to be used are determined after preliminary testing. Sediments are eliminated by physical processes.