Gastric swelling satiety gel block with double-layer structure

Abstract

The invention discloses an intragastric swelling satiety gel block with a double-layer structure, and relates to the technical field of functional foods. The gel block is formed by compounding an outer-layer soft gel layer and an inner-layer hard gel core, and is prepared by taking food-grade chitosan and sodium tripolyphosphate (TPP) as main raw materials through ionic crosslinking, the mass ratio of chitosan to sodium tripolyphosphate in the outer layer is 10: 1-12: 1, the texture is soft and smooth, and a food-grade flavor regulator can be added to form various tastes; the mass ratio of the chitosan to the sodium tripolyphosphate in the inner layer is 3: 1-4: 1, the texture is hard, and gastric acid erosion is resisted. Through a double-layer differentiated structure and proportion design, swallowing smoothness, stomach comfort, taste diversity and a long-acting satiety effect are considered, physical occupation can be realized in the stomach to prolong the satiety, the raw materials are safe and degradable, no medicine is added, and the food is suitable for people with diet control, weight management and stomach care and has a wide application prospect. The technical problems that a traditional single-layer satiety product is single in taste, and experience and efficacy are difficult to consider at the same time are solved.

Description

Technical Field

[0001] This invention relates to the fields of functional foods, weight management, and stomach care, specifically to a bilayer gastric swelling and satiety gel block prepared by ion crosslinking of chitosan and sodium tripolyphosphate. Background Technology

[0002] Currently, most satiety products used for diet control and weight loss are single-layer gels, powders, microspheres, or solutions, which have significant shortcomings: 1. Single-layer soft gels: They easily swell and disintegrate rapidly after entering the stomach, resulting in a short duration of satiety; 2. Single-layer hard gels: They have a poor taste when swallowed, easily irritate the throat and gastric mucosa, and have low comfort with long-term use; 3. The products have a single form and flavor, making it difficult to meet daily consumption needs; 4. They fail to achieve a balance of "comfortable swallowing + gentle on the stomach + long-lasting satiety".

[0003] To address this, the present invention proposes a two-layer differentiated structure that simultaneously solves the shortcomings of existing technologies in terms of formulation, structure, and taste. Summary of the Invention

[0004] Purpose of the invention: Overcoming the problems of existing satiety products such as uniform hardness, poor taste, insufficient satiety duration, and poor stomach comfort, this product provides a double-layer satiety gel block with a soft and smooth outer layer that can be adjusted in taste, and a hard inner layer that is resistant to stomach acid and can occupy space for a long time.

[0005] Technical solution: A bilayer gastric swelling and satiety gel block is composed of an outer soft gel layer and an inner hard gel core. Both the inner and outer layers are formed by ionic cross-linking of food-grade chitosan and sodium tripolyphosphate (TPP) to form a hydrogel, but with different ratios to achieve a soft outer layer and a firm inner core, and a supple outer layer and a durable inner core. 1. Outer soft gel layer: Raw materials: chitosan, sodium tripolyphosphate (TPP), with optional food-grade flavor modifiers; Ratio: chitosan: TPP = 10:1 ~ 12:1; Characteristics: low cross-linking density, soft texture, smooth surface; Functions: Easy to swallow, comfortable to ingest, softens and protects the stomach after entering the stomach, and does not irritate the stomach wall. 2. Inner hard gel core: Raw materials: chitosan, sodium tripolyphosphate (TPP); Ratio: chitosan: TPP = 3:1 ~ 4:1; Features: High cross-linking density, dense and hard structure, resistant to gastric acid; Functions: Maintains volume in the stomach for a long time, continuously occupies physical space, and prolongs the feeling of fullness.

[0006] Working principle: 1. When swallowed: The outer layer is soft and smooth, making it easy to swallow and preventing choking; 2. After entering the stomach: the outer layer quickly hydrates, forming a soft protective layer to prevent the hard core from rubbing against the stomach wall; 3. During the satiety stage: the inner layer remains stable and does not break down, continuously occupying stomach space; 4. Later stage: It gradually and gently degrades, is safely discharged, and has no residue or risk of obstruction.

[0007] Innovation points: 1. Pioneering double-layered structure with a soft outer layer and a hard inner layer for achieving satiety within the stomach; 2. Different chitosan / TPP ratios are used in the inner and outer layers to achieve differentiated properties; 3. Flavorings can be added to the outer layer to create multiple flavors and enhance the eating experience; 4. Made from pure food-grade raw materials, free of drugs and chemical cross-linking agents, safe and biodegradable; 5. Simultaneously addresses three major pain points: comfort, durability, and taste. Detailed Implementation

[0008] Example 1 1. Prepare a 1% chitosan solution, add sodium tripolyphosphate at a ratio of chitosan:TPP = 10:1 to form an outer soft gel; 2. Prepare a 2% chitosan solution, add sodium tripolyphosphate at a ratio of chitosan:TPP = 3:1 to form an inner rigid gel core; 3. Wrap the inner core in the outer gel, shape and dry to obtain a double-layered saturated gel block.

[0009] Example 2 Based on Example 1, 0.1% to 0.5% of edible fruit flavoring was added to the outer gel to create a fruit-flavored outer layer, which has a better taste and does not affect the internal structure.

[0010] Example 3 Based on Example 1, a sugar-free milk flavor modifier is added to the outer layer, resulting in a mild and smooth taste suitable for long-term consumption. Attached Figure Description

[0011] Figure 1 This is a schematic cross-sectional view of the double-layered gastric swelling and satiety gel block of the present invention.

[0012] The image is labeled as follows: 1 — Inner rigid gel core 2 — Outer soft gel layer (may contain flavoring ingredients) Figure 1 This is a cross-sectional diagram of the double-layer satiety gel block. The product has a double-layer block structure with an inner hard gel core (1) in the center and an outer soft gel layer (2) completely wrapped around it. The inner and outer layers are tightly integrated. The outer layer is responsible for taste and comfort, while the inner layer is responsible for long-lasting satiety, together achieving the effect of gentle stomach protection and long-lasting satiety.

Claims

1. A double-layered gastric swelling and satiety gel block, characterized in that, It is a double-layer composite molding consisting of an outer soft gel layer and an inner hard gel core; both the outer soft gel layer and the inner hard gel core are made of food-grade chitosan and sodium tripolyphosphate (TPP) as raw materials, and form a hydrogel structure through ionic cross-linking, and the mass ratio of chitosan and sodium tripolyphosphate in the inner and outer layers is different.

2. The double-layered gastric swelling and satiety gel block according to claim 1, characterized in that, In the outer soft gel layer, the mass ratio of chitosan to sodium tripolyphosphate is 10:1 to 12:1, with low cross-linking density and a soft and smooth texture.

3. The double-layered gastric swelling and satiety gel block according to claim 1, characterized in that, In the inner hard gel core, the mass ratio of chitosan to sodium tripolyphosphate is 3:1 to 4:1, resulting in high cross-linking density, a hard texture, and resistance to gastric acid erosion.

4. The double-layered gastric swelling and satiety gel block according to claim 1, characterized in that, Food-grade flavor modifiers, including sweeteners, edible flavorings, fruit juice powder, and milk flavor modifiers, can be added to the outer soft gel layer to create a variety of flavors without affecting the inner structure and satiety function.

5. The double-layered gastric swelling and satiety gel block according to claim 1, characterized in that, After oral administration, the outer soft gel layer quickly hydrates and softens, adhering to the stomach wall without irritation, while the inner hard gel core maintains structural stability, achieving long-lasting physical occupancy.

6. The double-layered gastric swelling and satiety gel block according to claim 1, characterized in that, The product contains no drugs or chemical cross-linking agents, and can be gently degraded in the digestive tract and safely excreted from the body.

7. The double-layered gastric swelling and satiety gel block according to any one of claims 1 to 6, characterized in that, This gel block is used for physical placement in the stomach, assisting in controlling food intake, weight management, and daily stomach care.

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