IP Library Granted Patent US 9,770,032
Granted Patent B2
US 9,770,032 · App. 12/658,920 · Granted Sep 26, 2017

Compositions for stabilizing bacillus spores and methods of use thereof

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Quick Facts
Patent No.
US 9,770,032
App. No.
12/658,920
Granted
Sep 26, 2017
Kind
B2
Abstract

The invention provides methods for providing Bacillus spores for application to agricultural soil or plant material. The methods comprise suspending the Bacillus spores in a liquid consisting essentially of water and an organic acid, including acetic acid, wherein the acid lowers the pH so that the spores are inhibited from germination and growth; and so that growth of unwanted microorganisms in the suspension is prevented. Compositions formed according to the methods of the invention are also provided.

Claims (35)

1. A method for providing a Bacillus on agricultural soil or plant material, which comprises the steps of:

(a) suspending Bacillus spores in a liquid consisting essentially of water and acetic acid, wherein the acetic acid lowers the pH so that the spores are inhibited from germination and growth, and wherein the liquid does not contain a synthetic chemical; and;

(b) neutralizing the liquid of step (a) to enable the spores to provide an enabled Bacillus and applying the enabled Bacillus to the soil or plant material, wherein the neutralizing step is with an alkali metal base, an alkaline earth metal base, and/or alkaline soil.

2. The method of claim 1 wherein the pH in step (a) is lowered to a pH from about 3.8 to about 4.2.

3. The method of claim 1 wherein the Bacillus spores are Bacillus subtilis.

4. The method of claim 1 wherein the plant material in step (b) is a seed.

5. The method of claim 1 wherein the applying in step (b) is to soil.

6. The method of claim 1 wherein the applying in step (b) is to a plant.

7. The method of claim 1 wherein the base is selected from the group consisting of: sodium bicarbonate, potassium bicarbonate, sodium hydroxide, potassium hydroxide, and calcium carbonate.

8. The method of claim 1 wherein the acetic acid is from a fermentation process to produce vinegar used in step (a).

9. The method of claim 1 wherein the acetic acid is from a 20 percent acetic acid vinegar which is used to lower the pH in step (a).

10. The method of claim 1 wherein the acetic acid in said liquid is at a concentration of 1 to 5%.

11. A method for providing a Bacillus on agricultural soil or plant material, which comprises the steps:

(a) preparing Bacillus spores in a minimal media effective to sporulate Bacillus;

(b) separating said spores from said media;

(c) optionally washing said spores;

(d) suspending the spores from step (b) or (c) in a liquid consisting essentially of water and acetic acid, wherein the acetic acid lowers the pH so that the spores are inhibited from germination and growth, and wherein the liquid does not contain a synthetic chemical; and

(e) neutralizing the liquid of step (d) to enable the spores to provide an enabled Bacillus and applying the enabled Bacillus to the soil or plant material, wherein the neutralizing step is with an alkali metal base, an alkaline earth metal base, and/or alkaline soil.

12. The method of claim 11 , wherein said separating is by tangential flow filtration or centrifugation.

13. The method of claim 12 , wherein said tangential flow filtration utilizes a filter from about 0.1 micron to less than 1 micron.

14. The method of claim 12 , wherein said centrifugation is performed at a force from about 3,000 g to about 10,000 g.

15. The method of claim 11 wherein the pH is lowered to a pH from about 3.8 to about 4.2.

16. The method of claim 11 wherein the Bacillus spores are Bacillus subtilis.

17. The method of claim 11 wherein the plant material is a seed.

18. The method of claim 11 wherein the application is to soil.

19. The method of claim 11 wherein the application is to a plant.

20. The method of claim 11 , wherein the acetic acid in said liquid is at a concentration of 1 to 5%.

21. A method for providing a Bacillus on agricultural soil or plant material, which comprises the steps:

(a) suspending Bacillus spores in a liquid consisting essentially of water and an organic acid, wherein the organic acid lowers the pH so that the spores are inhibited from germination and growth, and wherein the liquid does not contain a synthetic chemical; and

(b) neutralizing the liquid of step (a) to enable the spores to provide an enabled Bacillus and applying the enabled Bacillus to the soil or plant material, wherein the neutralizing step is with an alkali metal base, an alkaline earth metal base, and/or alkaline soil.

22. The method of claim 21 , further comprising the steps of:

i) preparing Bacillus spores in a minimal media effective to sporulate Bacillus;

ii) separating said spores from said media; and

iii) optionally washing said spores;

wherein said steps (i), (ii), and (iii) are performed prior to the suspending step.

Assignments (5)
RELEASE OF SECURITY INTEREST IN PATENTS AT REEL 056139, FRAME 0578 Recorded Jul 17, 2024
From: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
To: PHIBRO ANIMAL HEALTH CORPORATION; OMNIGEN RESEARCH, LLC
Reel/Frame 068404/0557 →
SECURITY INTEREST Recorded Jul 15, 2024
From: PHIBRO ANIMAL HEALTH CORPORATION; PRINCE AGRI PRODUCTS, INC.; OMNIGEN RESEARCH, LLC
To: COÖPERATIEVE RABOBANK U.A., NEW YORK BRANCH, AS COLLATERAL AGENT
Reel/Frame 068370/0043 →
SECURITY INTEREST Recorded May 5, 2021
From: PHIBRO ANIMAL HEALTH CORPORATION; OMNIGEN RESEARCH, LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 056139/0578 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2019
From: OSPREY BIOTECHNICS, INC.
To: PHIBRO ANIMAL HEALTH CORPORATION
Reel/Frame 050492/0269 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2010
From: REUTER, CHRISTOPHER J.
To: OSPREY BIOTECHNICS, INC.
Reel/Frame 024082/0194 →