| 摘要 |
<p>#CMT# #/CMT# Solution production involves reducing oxygen quantity to 0.025, preferably 0.005 volume parts per volume part of the solution at atmospheric pressure in the head area of a container. The container is used for storing the solution of Pelargonium extract. Content is reduced by proanthocyanidin and 2H-1-benzopyran-2-one after 9 months storage at 25[deg] C and a relative air humidity of 60%. The oxygen quantity is reduced by mechanical blowing with an inert gas, by a reduced volume of the head area or by addition of an oxygen-removing agent. The agent consists of one or multiple substances. #CMT#USE : #/CMT# Method for producing solution, preferably aqueous solution, solution in water and one or multiple alcohols or polyol, aqueous ethanolic solution, solution in a mixture of water and glycerol or water, glycerol and ethanol (all claimed) from Pelargonium extract. #CMT#ADVANTAGE : #/CMT# The solution production method ensures excellent stability of the solution during storage. #CMT#BIOLOGY : #/CMT# Preferred Plant: The Pelargonium extract comprises Pelargonium siodides or Pelargonium reniforme. #CMT#INORGANIC CHEMISTRY : #/CMT# Preferred Gases: The inert gas is selected from nitrogen, noble gases like argon, carbon dioxide or their mixture. The oxygen-removing agent is optionally selected from iron, iron (ll)-oxide, iron (ll)-hydroxide or iron (ll)-chloride. #CMT#ORGANIC CHEMISTRY : #/CMT# Preferred Compounds: 2H-1-benzopyran-2-one is selected from 6,8-bis(sulfooxy)-7-hydroxy-2H-1-benzopyran-2-one or 7-hydroxy-5,6-dimethoxy-8-sulfooxy-2H-1-benzopyran-2-one. The oxygen-removing agent is selected from ascorbic acid, sodium ascorbate, calcium ascorbate, potassium ascorbate or ester of ascorbic acid with palmitic or stearic acid. #CMT#POLYMERS : #/CMT# Preferred Components: The oxygen-removing agent is also selected from condensed polymer of m-xylylenediamine and adipic acid. #CMT#EXAMPLE : #/CMT# No suitable example given.</p> |
