IP Library Granted Patent US 7,175,863
Granted Patent B1
US 7,175,863 · App. 11/226,300 · Granted Feb 13, 2007

Method of isolating stone cells

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Quick Facts
Patent No.
US 7,175,863
App. No.
11/226,300
Granted
Feb 13, 2007
Kind
B1
Abstract

A method for isolating stone cells and stone cell clusters from fruit. A puree of a stone cell-containing fruit is treated to provide a chemically induced separation of fibrous fruit pulp from stone cells and stone cell clusters. The method provides free-flowing stone cell powder for use as a mild abrasive.

Claims (32)

1. A method for the isolation of stone cells from a fruit, the method comprising:

providing a puree of a stone cell-containing fruit;

treating the fruit puree to provide a chemically induced separation of stone cells and stone cell clusters from the pulp of the fruit, wherein said treating step comprises providing a basic compound to the fruit puree to provide a highly basic environment and heating the fruit puree in the highly basic environment;

washing the stone cells and stone cell clusters to remove any remaining fruit pulp;

and drying the washed stone cell clusters.

2. The method of claim 1 , wherein the fruit is selected from the group consisting of pear, quince, guava, and sapota.

3. The method of claim 1 , wherein the basic compound is sodium hydroxide.

4. The method of claim 1 , wherein the washing step includes washing the stone cells with isopropyl alcohol.

5. The method of claim 1 , wherein the treating step further comprises providing a buffer system to the fruit puree before the addition of the basic compound.

6. The method of claim 5 , wherein the buffer system comprises citric acid and diammonium citrate.

7. The method of claim 5 , wherein the treating step further comprises providing at least one enzyme to the fruit puree before the addition of the basic compound.

8. The method of claim 7 , wherein the at least one enzyme is a pectinase.

9. The method of claim 1 , wherein the washing step comprises providing a wash water to the stone cells and decanting off the wash water.

10. The method of claim 9 , wherein the washing step further comprises washing the stone cells with isopropyl alcohol.

11. A method for forming a stone cell powder, the method comprising:

providing a puree of a stone cell-containing fruit;

providing a basic compound to the fruit puree to form a mixture;

heating the mixture to provide a chemically induced separation of stone cells and stone cell clusters from the pulp of the fruit;

washing the stone cells and stone cell clusters to remove any remaining fruit pulp; and

drying the washed stone cells and stone cell clusters to provide a free-flowing stone cell powder.

12. The method of claim 11 , further comprising providing at least one enzyme to the fruit puree.

13. The method of claim 12 , wherein the step of providing at least one enzyme takes place before the step of providing a basic compound.

14. The method of claim 12 , wherein the step of providing at least one enzyme takes place after the step of providing a basic compound.

15. A method of forming an exfoliating cream, the method comprising:

providing a puree of a stone cell-containing fruit;

treating the fruit puree to provide a chemically induced separation of stone cells and stone cell clusters from the pulp of the fruit, wherein said treating step comprises providing a basic compound to the fruit puree to provide a highly basic environment and heating the fruit puree in the highly basic environment;

washing the stone cells and stone cell clusters to remove any remaining fruit pulp;

drying the washed stone cells and stone cell clusters to provide a free-flowing stone cell powder;

and providing the stone cell powder to a base cream.

16. The method of claim 15 , wherein the treating step further comprises providing a buffer system to the fruit puree before the addition of the basic compound.

17. The method of claim 16 , wherein the treating step further comprises providing at least one enzyme to the fruit puree before the addition of the basic compound.

18. The method of claim 17 , wherein the at least one enzyme is a pectinase.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Nov 15, 2011
From: DYMAS FUNDING COMPANY, LLC
To: DEN-MAT HOLDINGS, LLC
Reel/Frame 027226/0873 →
SECURITY AGREEMENT Recorded Jan 2, 2008
From: DEN-MAT HOLDINGS, LLC
To: DYMAS FUNDING COMPANY, LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 020299/0955 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 12, 2007
From: MATHIAS, ECKART; CAMPANALE, JOSEPH
To: DEN-MAT HOLDINGS LLC
Reel/Frame 020234/0082 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2007
From: DEN-MAT CORPORATION
To: DEN-MAT HOLDINGS LLC
Reel/Frame 019781/0024 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2005
From: MATHIAS, ECKART; CAMPANALE, JOSEPH P.
To: DEN-MAT CORPORATION
Reel/Frame 017023/0886 →