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X. Aqueous solution for plant propagation and protection
Chitin and its derivatives are bio compounds naturally occurring in our environment, that
have the potential in Agriculture with regard to controlling plant diseases.
These molecules were shown to display toxicity and inhibit fungal and bacterial growth, they
have been utilized to control diseases or reduce their spread, also to collect nutrients and
minerals, enhancement of root system development and enhance plant innate defences. (EL
HADRAMI et al., 2010).
Preparation of the experiment :
➢ For root system development the solution was prepared by dissolving 1g of chitosan
hydrochloride in 99 ml of purified water.
➢ 10 ml of chitosan hydrochloride solution were added to 20 ml of purified water.
➢ The plants were put into water solutions, at room temperature and exposed to sun
light.
The weekly progress of root development over a period of three weeks has been visually
documented and presented in a table, illustrating the effects of the chitosan solution on
enhancing root growth.
XI. Chitosan Films for food preservation:
Procedure :
➢ one beaker is filled with 2 g of chitosan and 100 ml of acetic
acid.
➢ Under slight heating and stirring the chitosan is dissolved.
➢ After cooling the solution is poured through a strainer onto a
plastic plate or on the backside of a rinsing bowl, The
solvent is allowed to vaporize overnight.
XII. Treatment of paper with chitosan hydrochloride:
Procedure:
In a crystallization dish 1 g of chitosan hydrochloride is dissolved
in water. Some pieces of paper are dipped into the solution and then
dried in hot air. With different paper samples this process is
performed once, twice and three times. Ink drops are put onto
untreated and treated paper samples.
A
B
Figure 47: Treatment of paper with
chitosan hydrochloride
Figure 46: 2% Chitosan
solution
X. Aqueous solution for plant propagation and protection
Chitin and its derivatives are bio compounds naturally occurring in our environment, that
have the potential in Agriculture with regard to controlling plant diseases.
These molecules were shown to display toxicity and inhibit fungal and bacterial growth, they
have been utilized to control diseases or reduce their spread, also to collect nutrients and
minerals, enhancement of root system development and enhance plant innate defences. (EL
HADRAMI et al., 2010).
Preparation of the experiment :
➢ For root system development the solution was prepared by dissolving 1g of chitosan
hydrochloride in 99 ml of purified water.
➢ 10 ml of chitosan hydrochloride solution were added to 20 ml of purified water.
➢ The plants were put into water solutions, at room temperature and exposed to sun
light.
The weekly progress of root development over a period of three weeks has been visually
documented and presented in a table, illustrating the effects of the chitosan solution on
enhancing root growth.
XI. Chitosan Films for food preservation:
Procedure :
➢ one beaker is filled with 2 g of chitosan and 100 ml of acetic
acid.
➢ Under slight heating and stirring the chitosan is dissolved.
➢ After cooling the solution is poured through a strainer onto a
plastic plate or on the backside of a rinsing bowl, The
solvent is allowed to vaporize overnight.
XII. Treatment of paper with chitosan hydrochloride:
Procedure:
In a crystallization dish 1 g of chitosan hydrochloride is dissolved
in water. Some pieces of paper are dipped into the solution and then
dried in hot air. With different paper samples this process is
performed once, twice and three times. Ink drops are put onto
untreated and treated paper samples.
A
B
Figure 47: Treatment of paper with
chitosan hydrochloride
Figure 46: 2% Chitosan
solution