Blends of different acyl gellan gums and starch

• US 7,494,667 B2
• Filed: 03/02/2004
• Issued: 02/24/2009
• Est. Priority Date: 03/02/2004
• Status: Active Grant

• Current Assignee: Corn Products International Incorporated (Ingredion Incorporated)
• Original Assignee: Brunob II B.V. (Ingredion Incorporated)
• Inventors: Chantranukul, Arjnarong, Li, Zhixin, Xiao, Chaodong, Okoniewska, Monika K., Chakrabarti, Sibu
• Primary Examiner(s): Woodward; M. P.
• Assistant Examiner(s): Sasan; Aradhana
• Application Number:
  US10/791,478
• Publication Number:
  US 20050196436A1
• Time in Patent Office: 1,820 Days
• Field of Search: 424/451, 426/573
• US Class Current: 424/451
• CPC Class Codes: A61K 9/4816 Wall or shell material

Abstract

The present invention relates to a method of producing a film forming blend of different acyl gellan gums with starch having similar textural and functional properties compared to gelatin. Films prepared using such blends have a high modulus and excellent strength and elongation. The present invention also relates to soft capsules prepared using such blends or films, which have good sealability.

Claims

1. A soft capsule shell comprising:

(a) a gum consisting essentially of a high acyl gellan gum having more than 40% acetyl and more than 45% glyceryl residual substitutents per repeat unit and a low acyl gellan gum having less than 25% acetyl and less than 15% glyceryl residual substitutents per repeat unit wherein the high acyl gellan gum is present in an amount of from about 0.3 to about 5% and the low acyl gellan gum is present in an amount of from about 0.1 to about 4% by weight of the composition on a wet basis;

(b) a starch; and

(c) a plasticizer, wherein the plasticizer is in an amount of from 30 to 80% of the starch (w/w dry basis).

2. The capsule of claim 1, wherein the ratio of high acyl gellan to low acyl gellan is from about 0.25:

1.0 to about 30.0;

1.0.

3. The capsule of claim 1, wherein the starch contains at least about 10% by weight amylose.

4. The capsule of claim 3, wherein the starch is a stabilized starch selected from the group consisting of a hydroxypropylated starch, a hydroxyethylated starch, an acetylated starch, and mixtures thereof.

5. The capsule of claim 1, wherein the starch is a dextrinized starch.

6. The capsule of claim 1, wherein the starch is present in an amount of from about 15% to about 40%, by weight of the composition on a wet film basis.

7. The capsule of claim 2, wherein the starch is present in an amount of from about 15% to about 40%, by weight of the composition on a wet film basis.

8. The capsule of claim 4, wherein the starch is present in an amount of from about 15% to about 40%, by weight of the composition on a wet film basis.

9. The capsule of claim 1, wherein the plasticizer is glycerin and is present in an amount of from about 30 to 80% by weight of the starch.

10. The capsule of claim 1, wherein the plasticizer is glycerin and is present in an amount of from about 30 to 80% by weight of the starch.

11. The capsule of claim 2, wherein the plasticizer is glycerin and is present in an amount of from about 30 to 80% by weight of the starch.

12. The capsule of claim 1, further comprising 6 hydrophilic or surface hydrophilically modified colloidal particles.

13. The capsule of claim 1, further comprising hydrophilic or surface hydrophilically modified colloidal particles.

14. The capsule of claim 2, farther comprising hydrophilic or surface hydrophilically modified colloidal particles.

15. The capsule shell of claim 1, wherein the ratio of high acyl gellan to low acyl gellan is from about 0.25:

1.0 to about 30.0;

1.0.

16. The capsule shell of claim 15, wherein the starch is contains at least about 10% by weight amylose and is selected from the group consisting of a hydroxypropylated starch, a hydroxyetbylated starch, an acetylated starch, and mixtures thereof

17. The capsule shell of claim 1, wherein the starch has a water fluidity of from about 20 to 90.