Dextrose (Glucose) Powder for Mushroom Culture

Dextrose is a simple, highly fermentable sugar used to feed mycelium in liquid culture and nutrient agar. It dissolves fully in cold water, leaving a clear medium that shows contaminants easily.

Why Use Dextrose?

• Fast carbon source that jump‑starts mycelial growth in broths and plates.
• Creates crystal‑clear liquid cultures, making contamination inspection simple.
• Neutral flavour and pH—pairs well with light malt extract, peptone or yeast extract.
• Food grade, fine powder, no additives.

Recommended Rates

• Liquid culture (LC): 40 g per litre of water (4 % w/v).
• Nutrient agar: 20 g dextrose + 20 g light malt extract + 15 g agar per litre.
• Spore syringe water: 2 g per 100 mL to improve germination.

Pack Size

100 g resealable pouch—enough for 2.5 L of LC or 5 L of LME‑agar.

Basic Use

1. Measure dextrose into the required volume of water.
2. Stir until fully dissolved (no need to heat).
3. Dispense into jars or bottles, cap loosely and sterilise 20 min at 15 psi.
4. Cool to room temperature before inoculating.

Tips

• Use magnetic stir bars or glass beads in LC jars for easy mixing.
• Add 0.5 g peptone per litre for extra nitrogen if strains grow sluggishly.
• Store powder sealed and dry; dextrose is hygroscopic and can clump.

Legal & Safety

For use with legal mushroom species only. Food grade but not intended as a sweetener. Keep out of reach of children and pets.