Gellan Gum Formula for Wet Pet Food

The following formula is provided for reference and product development trials only. Actual formulation should be adjusted according to raw materials, processing conditions, and final product requirements.

Wet pet food products require a stable structure that can maintain shape while providing a soft and acceptable texture.

During production and storage, common challenges include:

* excessive water release
* poor gel structure
* separation after sterilization
* unstable texture after cooling

Gellan gum can be used as a gelling and stabilizing agent to improve texture consistency and water retention.

Depending on the desired texture, high acyl and low acyl gellan gum may be selected.

Basic Wet Pet Food Formula

For 100 kg finished wet pet food:

Meat or fish ingredients: 40–60 kg
Water or broth: 30–50 kg
Starch or carbohydrate ingredients: 5–15 kg
Fat: 2–8 kg
Gellan gum: 100–500 g
Minerals and nutrients: according to product requirements

Recommended starting range:

Gellan gum: 0.10–0.50%

Equivalent to:

100–500 g gellan gum per 100 kg product

Why Use Gellan Gum in Wet Pet Food?

Wet pet food requires a balance between:

* gel strength
* moisture retention
* texture
* processing stability

Gellan gum can help:

* reduce free water release
* improve product appearance
* maintain structure after cooling
* provide consistent texture

The objective is not simply to create the strongest gel.

The ideal texture depends on the product type:

* loaf style
* chunks in gravy
* pâté
* jelly-style pet food

HA or LA Gellan Gum Selection

High Acyl Gellan Gum

May be considered when a softer and more elastic texture is desired.

Advantages:

* softer gel
* better mouthfeel
* less brittle structure

Low Acyl Gellan Gum

May be considered when a firmer and cleaner gel structure is required.

Advantages:

* stronger gel
* better shape retention
* clearer gel structure

The final choice depends on the target product.

Suggested Processing Method

1. Prepare the water phase and meat or other raw materials.

2. Premix gellan gum with dry ingredients.

3. Add the mixture under good agitation.

4. Heat the system to approximately:

85–90°C

to hydrate the gellan gum.

5. Adjust the formulation according to texture requirements.

6. Fill into cans or pouches.

7. Process according to the required sterilization conditions.

Starting Trial Design

A dosage screening trial is recommended.

Example:

Trial A:

0.10% gellan gum

Trial B:

0.20% gellan gum

Trial C:

0.30% gellan gum

Trial D:

0.50% gellan gum

Evaluate:

* gel firmness
* water release
* texture after cooling
* appearance after sterilization
* storage stability

What If Water Separation Occurs?

Possible causes include:

* insufficient gel structure
* excessive free water
* processing conditions
* ingredient interaction
* sterilization conditions

Increasing gellan gum may help, but the whole formulation should be reviewed.

What If the Product Is Too Firm?

Reduce the gellan gum dosage gradually.

Example:

0.50% → 0.30% → 0.20%

A pet food gel should maintain the desired texture rather than simply maximizing hardness.

Effect of Minerals

Minerals naturally present in meat ingredients can influence gellan gum performance.

Calcium and other ions may affect:

* gel strength
* setting speed
* final texture

Therefore, different meat systems may require different optimization.

Practical Starting Formula

For a first wet pet food trial:

100 kg product

*

100–500 g gellan gum

is a reasonable starting range.

The final formula should be optimized according to:

* meat ingredients
* moisture level
* sterilization process
* desired texture
* shelf-life requirements

This formula is intended for product development trials only. Commercial production should always be validated with actual raw materials and processing conditions.