How are plant peptides used in high-protein gummies?

Beyond Biopharma | Plant Protein Peptide FAQ

Short answer: Plant peptides are used in high-protein gummies as a highly soluble protein source that is dissolved into a gelatin, pectin or starch gummy base, where the practical limits are viscosity at high solids, browning during cooking, texture and the maximum protein that can be carried in each piece.

Why a gummy is a difficult protein format

A gummy is a concentrated sugar and hydrocolloid system that has to set, demould, stay springy and taste clean. Protein works against several of those requirements at once: it raises viscosity, it buffers flavour, it can react with reducing sugars during cooking, and it competes with the gelling agent for water. A peptide rather than an intact isolate is used because short chains dissolve quickly and completely at high solids, keep the syrup less viscous and give less of the gritty or chalky mouthfeel that an insoluble protein fraction produces.

The base system and how it behaves

Viscosity and dosing

The main engineering constraint is viscosity. Peptide powder has to be dissolved or well dispersed in the syrup, and every percent of added protein thickens the mass, which slows depositing, traps air and can leave the moulds incompletely filled. The usual approach is to use a peptide with high solubility and a low proportion of large chains, to dissolve it fully before the gelling agent is added, to keep total solids and temperature inside a validated window, and to keep mixing gentle so that air is not whipped in. If the mass becomes too viscous, a lower dose per piece, a smaller piece, or a change of base system is usually more practical than forcing more protein into the recipe.

Flavour, colour and browning

• Browning - amino groups from the peptide react with reducing sugars during cooking and storage, so colour and flavour drift. Lower process temperatures, shorter hold times and a sugar system with fewer reducing sugars all help.
• Bitterness - a peptide with a low bitterness level is worth paying for here, because a gummy has little water and few masking tools compared with a beverage.
• Flavour load - protein binds some flavour compounds and dulls sweetness, so flavour and acid levels usually need to be raised and rebalanced in trials.
• Colour - darker hydrolysates limit light, fruit-like shades, so a lighter grade or an opaque system is often chosen.

How much protein fits in one piece

There is no single number, because the ceiling depends on piece size, the base system, the peptide solubility and viscosity behaviour, and what the brand is willing to accept in texture. As a rule, the larger the piece and the more elastic the base, the more protein it can carry before the texture becomes tough or the mass unworkable, and a modest dose per piece with a stated serving of several pieces is usually more achievable than a very high dose in a single small gummy. Claims on the label follow the finished product analysis, not the recipe calculation.

Process and shelf-life points to plan for

Peptides are hygroscopic, so the starch, the curing room and the packaging all matter: moisture migration during curing and storage can make gummies sticky or grainy, and the peptide should be dry-blended or dissolved in a way that avoids lumps. Where a vegan claim is needed, the peptide source and the gelling agent have to be checked together, and the finished product should be verified for the protein content actually delivered per piece.

Related reading

For more detail, see how to choose a grade for an application, when to use a peptide instead of an isolate and which parameters can be customised.