Polyvinylpyrrolidone (PVP-40) — 100g

Polyvinylpyrrolidone (PVP-40) — 100 g

PVP-40 is a polyphenol sequestrant — it binds phenolic compounds released by wounded explants, preventing oxidative browning that can kill cultures. Critical for vanilla, walnut, mango, and other high-phenolic species.

• 🌿 Use at 250–500 mg/L in initiation medium for phenol-rich explants
• ⚗️ Also add to explant wash buffer during surface sterilisation
• 📦 100 g · MW ~40,000 · Powder · pH-neutral · Autoclave-stable
• 💡 Combine with 0.5 g/L activated charcoal for maximum anti-browning