Water-Based Liquid Bread Improver Stability

The patent changes the physical-chemical parameters of the water-based composition by controlling water activity (aw < 0.9) through salt addition, adjusting pH to 4.0-6.0, and optimizing protein concentration (10-30 wt%). These parameter changes enable the water-based improver to achieve stability and functionality comparable to oil-based products without using fat components, thus reducing cost while maintaining baking performance.

The patent creates a composite water-based system combining proteins of vegetable origin, lipophilic emulsifiers, enzymes, and salt in specific proportions. This composite formulation provides the necessary functional properties (emulsification, dough strengthening, texture improvement) that were previously only achievable with oil-based formulations, thereby maintaining reliability while reducing cost and environmental impact.

The patent controls water activity (aw) to be less than 0.9 by adding salt (12-30 wt%), which creates a hypertonic environment that prevents microbial growth and enzymatic degradation. The pH is adjusted to 4.0-6.0 using organic or inorganic acids, which stabilizes the protein structure and prevents denaturation. These parameter changes ensure long-term physical stability of the water-based composition without requiring fat components.

The patent uses salt as an intermediary substance that mediates between the water-based carrier and the protein-emulsifier complex. The salt ions interact with the protein molecules and emulsifiers, forming a stable network structure that prevents phase separation and maintains physical stability over time, compensating for the absence of fat-based stabilization.

The patent optimizes the water activity (aw < 0.9) and pH (4.0-6.0) parameters to create a stable environment that preserves enzyme activity. The low water activity reduces molecular mobility and slows down degradation reactions, while the controlled pH maintains enzyme structural integrity. This allows the water-based improver to retain enzyme activity for extended periods while remaining easy to handle and pump.

The patent formulates the water-based improver with sufficient enzyme concentration initially, allowing for a shorter shelf life compared to oil-based products, but compensating with higher initial enzyme loading and optimized storage conditions (aw < 0.9). This approach accepts a limited shelf life (a few weeks to months) in exchange for superior handling properties, cost reduction, and eliminates the need for complex fat crystal network formation.

The patent changes the fundamental parameter from oil-based to water-based carrier, while compensating for the loss of emulsification capability through careful selection of lipophilic emulsifiers and optimization of their concentration (1-30 wt%). The water activity control (aw < 0.9) and pH adjustment (4.0-6.0) create conditions where these emulsifiers can effectively stabilize the crumb structure and maintain freshness, achieving the same functional results as oil-based products without the associated cost and environmental issues.

The patent extracts and eliminates the vegetable oil component from the formulation, retaining only the essential functional elements (proteins, emulsifiers, enzymes) in a water-based matrix. By removing the oil carrier, the patent eliminates the source of high cost and environmental harm, while the remaining components are optimized to deliver the necessary crumb structure enhancement and freshness preservation functions.