What You Need to Know
Utilizes weak organic acids (oxalic, citric) to solubilize insoluble calcium oxalate crystals via proton exchange and chelation. Secondary enzymatic hydrolysis of cyanogenic glycosides may occur concurrently.
Critical for safe consumption of taro, elephant ear, and other aroids containing needle-like raphides that cause oral irritation.
Key Parameters
Temperature
30°C
20°C - 40°C
Time
1 hour
30 minutes - 2 hours
Equipment
Large bowlStrainerMeasuring cupsSpoonGloves
Steps
- 1.
Poi (Hawaii): Eliminates oral irritants while preserving starch functionality
- 2.
Laulau (Samoa): Enables safe use of taro leaves as wrapping
The Science
Primary Reaction
CaC2O4 + 2H+ → H2C2O4 + Ca2+