Formulation for counteracting and ethylene response in plants, preparation process thereof, and method using the same

• US 6,897,185 B1
• Filed: 09/22/2000
• Issued: 05/24/2005
• Est. Priority Date: 09/22/2000
• Status: Expired due to Term

• Current Assignee: Lytone Enterprise, Inc.
• Original Assignee: Lytone Enterprise, Inc.
• Inventors: Yang, Ren-Der, Chang, William T. H.
• Primary Examiner(s): CLARDY, S
• Application Number:
  US10/182,403
• Time in Patent Office: 1,705 Days
• Field of Search: 504/357, 504/360, 504/359, 504/326
• US Class Current: 504/357
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 27/00 Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons

Abstract

Disclosed is a tablet dosage for inhibiting ethylene response in a plant containing a blocking agent, which has ethylene binding site inhibition activity to plants, and an effervescent ingredient in admixture with one or more acceptable excipients. A process of preparing the tablet dosage and a method for inhibiting ethylene response in plants are also disclosed therein.

Claims

1. An effervescent tablet dosage comprising an agent for blocking the ethylene binding site in plants and an effervescent ingredient, in admixture with one or more acceptable carriers and/or excipients.

2. The tablet dosage of claim 1, wherein the agent for blocking the ethylene binding site in plants is selected from the group consisting of cyclopropene, 1-methylcyclopropene, 3,3-dimethycyclopropene, methylenecyclopropane, diazocyclopentadiene, trans-cyclooctene, cis-cyclooctene, and 2,5-norbornadiene, the derivatives thereof, and the mixtures thereof.

3. The tablet dosage of claim 2, wherein the agent for blocking the ethylene binding site in plants is 1-methylcyclopropene.

4. The tablet dosage of claim 1, wherein the effervescent ingredient comprises a mild alkaline compound and a mild acid compound which is in a solid state at normal temperature.

5. The tablet dosage of claim 4, wherein the mild alkaline compound is selected from the group consisting of NaHCO₃, KHCO₃, CaCO₃, Na₂CO₃, K₂CO₃, NaKCO₃, sodium glycine carbonate and the mixtures thereof.

6. The tablet dosage of claim 4, wherein the mild acid compound is selected from the group consisting of tartaric acid, citric acid, fumaric acid, salicyclic acid, oxalic acid, succinic acid, malic acid, maleic acid, glycolic acid, ornithuric acid, gluconic acid and the mixtures thereof.

7. The tablet dosage of claim 1, wherein the amount of the agent for blocking the ethylene binding site in plants is from about 0.01% to about 0.5%.

8. The tablet dosage of claim 7, wherein the amount of the agent for blocking the ethylene binding site in plants is from about 0.05% to about 0.24%.

9. The tablet dosage of claim 4, wherein the ratio of the mild alkaline compound to the mild acid compound is from about 9:

1 to about 1;

1.

10. The tablet dosage of claim 9, wherein the ratio of the mild alkaline compound to the mild acid compound is about 4:

1.

11. The tablet dosage of any one of claim 1, wherein the agent for blocking the ethylene binding site in plants is released in a gaseous form.

12. A process of preparing the tablet dosage of claim 1 comprising (i) mixing an agent for blocking the ethylene binding site in plants, an effervescent ingredient, and one or more acceptable carriers and/or excipients, (ii) passing the mixture into a dies;

and (iii) compressing the die into a dosage.

13. A method for inhibiting an ethylene response in a plant, comprising (i) contacting the effervescent tablet dosage of claim 1 with a solvent, thereby liberating the agent for blocking the ethylene binding site in the plant from the tablet dosage through an effervescent action;

and (iii) contacting the agent with the plant.

14. The method of claim 13, wherein the solvent is selected from water and a dilute alkaline solution.

15. The method of claim 14, wherein the solvent is water.