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Content archived on 2024-04-30

IMPROVEMENT OF EFFICIENCY AND REDUCTION OF APPLICATION RATES OF PREFERABLE NATURALLY GROWN BIOCIDES BY COMPLEXATION WITH GAMMA-CYCLODEXTRIN

Objective



In accordance with the reformed Common Agricultural Policy (CAP) this project
suggests the use of gamma-cyclodextrin (CD) in biocides. Two biocides, scilliroside
(extracted from hyacinth) and pyrethrins (extracted from compositae), will be
complexed with gamma-CD in order to improve their biological activity (hence
reducing the application required) as well as to stabilize these biocides against
degradation.

As a part of the European CAP programme agricultural areas are set aside. We feel
one side effect of this policy may be increased population of rodents and insects.
Plant based scilliroside and pyrethrins offer new possibilities to control high
infestations of rats and mice or insects.

Biogenic pyrethrins are sensitive to sunlight and will be decomposed within a few
hours of outdoor use. However, gamma-CD complexed pyrethrins are stabile
against sunlight and temperature and could therefore be used for pest control in
major field crops. The saving of normally necessary synergists (e.g.
piperonylbutoxide) is also expected. For environmental reasons this new biocide
would be a significant step forward for farming systems and stock protection in
EC-member states.

New extraction techniques with gamma-CD are suggested to yield pure scilliroside
and pyrethrins from plant raw material in a single step. In comparison to
conventional extraction methods the use of organic solvents and mineral oils is
replaced by highly degradable cyclodextrins. This new environmental friendly and
cheap method could support developing countries in their production of pyrethrins.
The method could also be applied to Europe aiding in a diversification of farming
systems.

In accordance with this programme our proposal suggests an opportunity to
significantly reduce application rates of biocides, designs innovative methods for
their isolation and promises low-chemical crop protection.

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Topic(s)

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Call for proposal

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Funding Scheme

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CSC - Cost-sharing contracts

Coordinator

F. JOH. KWIZDA GESELLSCHAFT M.B.H.
EU contribution
No data
Address
KWIZDA-ALLEE
2100 LEOBENDORF BEI KORNEUBURG
Austria

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Total cost

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Participants (4)

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