Sterilization of mango wood (Mangifera indica L.) without heat.

Abstract

Wet (green) mango boards were pressure treated for 4 hours with 5% solution of 1:1:1 sodium dichromate:copper sulfate:boric acid. Copper sulfate penetrated only superficially, but boric acid diffused completely through the boards sufficiently to protect the boards against decay fungi and insects throughout the rainy season. Untreated boards were decayed within 3 months. When heat sterilization and kiln drying are practically impossible during the rainy season, wet timbers can be stored after impregnation with boric acid which diffuses through wet wood successfully and can offer protection to decay and wood borers.