Yes, banana stem can be chopped and stored, but it needs proper preparation and storage to prevent browning and maintain its freshness. Soaking it in water with lemon juice or vinegar is recommended.
Chopping banana stem in advance can save time during the week. However, like many fruits and vegetables, banana stem tends to oxidize and turn brown when exposed to air. To prevent this, follow these steps:
Chop the banana stem: Cut the banana stem into your desired size and shape.
Prepare an anti-browning solution: Fill a bowl with water and add either lemon juice (about 1-2 tablespoons per liter of water) or vinegar (about 1 tablespoon per liter of water). These acidic solutions help to inhibit oxidation.
Soak the chopped stem: Immediately place the chopped banana stem into the prepared solution, ensuring it's fully submerged. This will prevent it from browning.
Store properly: Transfer the soaked banana stem and the solution to an airtight container. Store it in the refrigerator. It can typically last for up to 3-4 days this way.
Rinse before use: Before using the stored banana stem, rinse it thoroughly with fresh water to remove any residual lemon juice or vinegar taste.
To further extend the shelf life and maintain the texture of the chopped banana stem, consider blanching it briefly in boiling water for 1-2 minutes before soaking it in the anti-browning solution and storing it. This helps to deactivate enzymes that contribute to spoilage.