G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 31/22 (2006.01) A01N 25/00 (2006.01) C09K 17/00 (2006.01) G01N 21/80 (2006.01) C05G 3/00 (2006.01)
Patent
CA 2536808
This invention discloses a new class of pH indicators suitable for use in agricultural compounds. The class comprises naturally occurring substances which are extracts from grape skins, cabbage and lichen. Safety concerns are now causing regulatory bodies to prohibit use of chemical pH indicators in compounds which are used for crops and animals. The naturally occurring compounds of this invention satisfy these concerns of the regulators and function as well as chemical indicators of the prior art.
La présente invention concerne une nouvelle classe d'indicateurs du pH convenant pour les composés agricoles. Cette classe comprend des substances naturellement présentes, que l'on extrait de la peau du raisin, du chou et de la lécithine. Les préoccupations sanitaires poussent de plus en plus les administrations de tutelle à interdire l'utilisation d'indicateurs chimiques du pH dans des composés destinés aux cultures et aux animaux. Les composés naturels de l'invention, qui répondent à ces attentes des administrations de tutelle fonctionnent aussi bien que les indicateurs chimiques selon l'état de la technique.
Bloomberg Martin David
Houston-Mcmillan Mark Stewart
Heenan Blaikie Llp
Nutriag Ltd.
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