Preservation of green plant tissues

Details Preservation of green plant tissues Preservation of green plant tissues

A - Human Necessities

01

N

71/3

A01N 3/02 (2006.01)

Patent

CA 1159270

ABSTRACT OF THE DISCLOSURE A process for preserving green coloured plant tissue and in particular coniferous needles, holly and low fibre leaves such as mosses, lichens and ferns in which selected leaves are immersed in a solution comprising (by volume) 35-45% water, 20-30% 2-propanol, 5-12% propionic acid, 5-10% sulphurous acid, 5-10% 2.5-5% formic acid, 1-5% ethylene glycol, and optionally minor amounts of compounds selected from the group consisting of cupric sulphate, cupric chloride, 20-20-20 fertilizer, citric acid, DBE, magnesium sulphate, acetic acid, cupric acetate, cupric nitrate, sodium phosphate, sodium sulfite, butylated hydroxytolulene and glycerol, for a sufficient time to exchange the naturally occurring water in the tissue with the "chemical water" of the solution and thereby permanently retain and biologically fix the green colour of the leaves.

396800

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