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US 2017/0292011 A1Published application
Soft capsule shell
AssigneeFuji Capsule Co., Ltd.
InventorsKazuhiko WATANABE, Yosuke KONDO, Yoshiyuki SHIMOKAWA, Kenji KATO
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Abstract
Provided are a plant-derived soft capsule shell having high shell sheet strength, good adhesive property, and good shell performance, and a soft capsule. A soft capsule shell comprising: (A) iota carrageenan; and (B) waxy corn starch having undergone a heat-moisture treatment in the presence of a salt, the soft capsule shell having a content mass ratio [(A)/(B)] of the component (A) to the component (B) of 0.4 to 3, the soft capsule shell having a content mass ratio [carrageenan/starch] of carrageenan including the component (A) to starch including the component (B) of 0.29 to 1.
Claims9
1:
- A soft capsule shell, comprising:
- (A) iota carrageenan;
- and
- (B) waxy corn starch having undergone a heat-moisture treatment in the presence of a salt,
- wherein:
- the soft capsule shell has a content mass ratio [(A)/(B)] of the component (A) to the component (B) of 0.4 to 3;
- and
- the soft capsule shell has a content mass ratio [carrageenan/starch] of carrageenan comprising the component (A) to starch comprising the component (B) of 0.29 to 1.
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2:
- The soft capsule shell according to claim 1, further comprising a plasticizer.
3:
- The soft capsule shell according to claim 1, wherein the content of the iota carrageenan (A) is from 20 to 55% by mass based on the total amount of solid components.
4:
- The soft capsule shell according to claim 1, wherein the content of the waxy corn starch having undergone a heat-moisture treatment in the presence of a salt (B) is from 10 to 80% by mass based on the total amount of solid components.
5:
- The soft capsule shell according to claim 1, further comprising kappa carrageenan.
6:
- The soft capsule shell according to claim 5, wherein the content of the kappa carrageenan is from 0.05 to 3.5% by mass based on the total amount of solid components.
7:
- The soft capsule shell according to claim 1, further comprising waxy potato starch.
8:
- A soft capsule obtained from the soft capsule shell according to claim 1.
9:
- A method for producing a soft capsule, the method comprising:
- preparing a soft capsule shell solution comprising (A) iota carrageenan and (B) waxy corn starch having undergone a heat-moisture treatment in the presence of a salt, wherein the solution has a content mass ratio [(A)/(B)] of the component (A) to the component (B) of 0.4 to 3 and also has a content mass ratio [carrageenan/starch] of carrageenan comprising the component (A) to a starch comprising the component (B) of 0.29 to 1;
- casting the soft capsule shell solution on a pair of rotary drums to form a pair of shell sheets;
- and
- feeding the pair of shell sheets between a pair of rotary dies,
- wherein the pair of shell sheets are heated to a temperature higher than room temperature until the pair of shell sheets reach the pair of rotary dies, so that the shell sheets are pressure-sealed and formed into a capsule while segments arranged above the dies are kept at room temperature without heating.
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