Solid Bakery Emulsion Enzyme Stability and Staling
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Solution Overview
Problem
Baked goods tend to stale due to starch retrogradation, leading to a harder, less elastic crumb and reduced palatability, with existing solutions inadequately addressing the issue of staling and enzyme activity stability in bakery products.
Innovation Solution
A solid bakery emulsion comprising 40-99 wt.% continuous fat phase and 1-60 wt.% dispersed aqueous phase, containing a heat-stable polysaccharide hydrolysing enzyme like amylase or xylanase, which is designed to maintain enzyme activity and improve dough handling properties, thereby delaying enzyme interaction with flour components until proofing or baking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If enzyme is added to bakery emulsion to prevent staling, then crumb softness and anti-staling properties are improved, but enzyme activity is rapidly lost during storage
Solution Approach 1:
The patent uses a lipid phase as an intermediary carrier to protect and deliver the enzyme to the starch substrate. The enzyme is incorporated into the bakery emulsion which contains a continuous lipid phase and dispersed aqueous phase, allowing the enzyme to remain protected during storage and become active only when released during baking or storage, thus preventing staling while maintaining enzyme activity
Solution Approach 2:
The enzyme is pre-incorporated into the bakery emulsion during manufacturing, but its activity is delayed until the appropriate time (baking or storage). The emulsion formulation allows the enzyme to be held in an inactive or protected state during storage, then activated when needed to prevent staling, achieving preliminary preparation without premature action
2Shape
If emulsifiers are added to soften crumb structure, then fresh bread softness is improved, but staling prevention is insufficient
Solution Approach 1:
The patent combines the functions of emulsifiers (for crumb softness) and enzymes (for staling prevention) into a single bakery emulsion product. The emulsion contains both emulsifying agents and polysaccharide-degrading enzymes, allowing simultaneous achievement of soft crumb structure and effective staling prevention through one ingredient addition
3Stability of the object's composition
If starch retrogradation is suppressed to maintain freshness, then crumb elasticity is improved, but crumb firmness increases over time
Solution Approach 1:
The patent changes the chemical parameters of starch through enzymatic degradation. The polysaccharide-degrading enzyme modifies the starch structure by breaking down polysaccharides, which alters the retrogradation behavior of starch. This parameter change allows the crumb to maintain elasticity while preventing excessive firmness development during storage
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The emulsion provides improved fresh keeping and textural properties, with minimal enzyme activity loss during storage, resulting in softer crumb, higher specific volume, and reduced staling, while maintaining microbial stability and enzyme activity.
Implementation Method 1
an active enzyme, more particularly a polysaccharide hydrolysing enzyme such as amylase or xylanase
Data Source
AI summary
The present invention relates to a solid bakery emulsion comprising 40-99 wt.% of a continuous fat phase and 1-60 wt.% of a dispersed aqueous phase, said continuous fat phase having a solid fat content at 20°C (N20) of at least 12%, said dispersed aqueous phase having a pH in the range of 3.2 to 5.5, and said emulsion containing an active polysaccharide hydrolysing enzyme selected from amylase, xylanase and combinations thereof. The bakery emulsion of the present invention can advantageously be used in the preparation of baked products with improved fresh keeping and textural properties.