water retting

water retting

[′wȯd·ər ‚red·iŋ] (microbiology) A type of retting process in which the stalks of fiber plants are immersed in cold or warm, slowly renewed water, for 4 days to several weeks. The active organism is Clostridium felsineum and related types, which break down the pectin to a mixture of organic acids (chiefly acetic and butyric), alcohols (butanol, ethanol, and methanol), carbon dioxide (CO2), and hydrogen (H 2).