Description
Takuan is a Japanese pickled daikon radish produced by lactic‑acid fermentation in a salt brine.
Technical
During fermentation, native sugars in daikon are metabolised by lactic‑acid bacteria via glycolysis, yielding lactic acid that drops the pH to 3.5–4.0. The acidic environment denatures pectin‑modifying enzymes, softening cell walls while preserving crunch. Volatile metabolites such as diacetyl and acetaldehyde develop the characteristic tangy aroma.
Science
Primary Reaction
Lactic‑acid fermentation of sugars to lactic acid (glycolysis followed by homolactic fermentation)
Sensory Profile
Aroma ()
sharptangyearthyumamivinegaryslightly sweetfunky
Origin & History
Civilization
Japanese