Process for producing preservatives
AssigneeLion Corporation
InventorsYukichi Kimura, Takeshi Kanamori
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Abstract
A process for producing a preservative having anti-oxidant and anti-bacterial action comprises steps of: preparing a starting material selected from the group consisting of herb family spices, residues obtained after the recovery of essential oils from herb family spices, oleoresins extracted from herb family spices with a polar solvent, and oleoresins extracted from herb family spices with a non-polar solvent and associated residues; subjecting the starting material to extraction with a solvent mixture of polar and non-polar solvents, the ratio by volume of the polar solvent to the non-polar solvent ranging from 2:98 to 50:50; and recovering an extractive to obtain a preservative by distilling off the solvents from said extractive.
Claims8
A process for producing a preservative, comprising the steps of:
- preparing a starting material selected from the group consisting of herb family spices, residues obtained after the recovery of essential oils from herb family spices, oleoresins extracted from herb family spices with a polar solvent, and oleoresins extracted from herb family spices with a non-polar solvent and associated residues, said herb family spices being selected from the group consisting of sage, rosemary, majooram, thyme, oregano and basil;
- subjecting the starting material to extraction with a solvent mixture of a polar solvent compatible with water and a non-polar solvent selected from the group consisting of n-hexane, petroleum ether, ligroin, cyclohexane, carbon tetrachloride, chloroform, dichloromethane, 1,2-dichloroethane, toluene, benzene and mixtures thereof, the ratio by volume of the polar solvent to the non-polar solvent ranging from 2:98 to 50:50;
- adding an adsorbent to said extractive in an amount of 1-20% by weight based upon the weight of the starting material;
- adding water to the extractive after said adsorbent is separated;
- allowing the polar solvent to migrate into the water;
- separating the mixture into a water/polar solvent phase and a non-polar solvent phase having a highly oil-soluble active fraction dissolved and a substantially oil-insoluble active fraction precipitated;
- and
- recovering the non-polar solvent phase as a preservative.
A process for producing a preservative, comprising the steps of:
- preparing a starting material selected from the group consisting of herb family spices having antioxidant values, residues obtained after the recovery of essential oils from herb family spices, oleoresins extracted from herb family spices with a polar solvent, and oleoresins extracted from herb family spices with a non-polar solvent and associated residues;
- subjecting the starting material to extraction with a solvent mixture of a polar solvent compatiable with water and a non-polar solvent, the ratio by volume of the polar solvent to the non-polar solvent ranging from 2:98 to 50:50;
- adding an effective amount of an adsorbent to said extractive;
- adding water to the extractive after said adsorbent is separated;
- allowing the polar solvent to migrate into the water;
- separating the mixture into a water/polar solvent phase and a non-polar solvent phase having a high oil-soluble active fraction dissolved and a substantially oil-insoluble active fraction precipitated;
- and
- recovering the non-polar solvent phase as a preservative.
Dependencies are inferred from the claim text.