Description
Alkaline wood ash treatment disrupts plant cell walls via saponification, enabling faster fermentation.
Technical
Potassium hydroxide (KOH) from wood ash raises pH to 9-11, hydrolyzing pectin and hemicellulose through β-elimination reactions. This is followed by lactic acid fermentation (pH 4-5) with species like Lactobacillus plantarum.
Culinary Significance
Essential for preparing edible versions of naturally tough or bitter leafy greens, creating tender textures while preserving nutritional content.
Science
Primary Reaction
Saponification
Parameters
Temperature
20°C optimal
15°C to 30°C range
Temperature range for optimal fermentation
Time
5 days
2 days – 7 days
Equipment
Large containerWood ashWater