D-Allulose Bread Formulation for Yeast-Friendly Proofing
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Solution Overview
Problem
D-allulose cannot be decomposed by yeast, inhibiting yeast activity and affecting bread proofing, resulting in poor taste and texture when used as a sucrose substitute.
Innovation Solution
A bread recipe incorporating D-allulose with specific ratios of flour, gluten powder, eggs, milk, yeast, butter, and a composite bacterial powder comprising Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus rhamnosus, and Bifidobacterium species to enhance yeast activity and dough fermentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If D-allulose is used to replace sucrose in bread, then the calorie content and blood sugar impact are reduced, but the yeast cannot decompose and utilize D-allulose, leading to poor proofing and taste
Solution Approach 1:
The patent introduces a composite enzyme preparation containing invertase, alpha-amylase, and glucoamylase as intermediaries to bridge the metabolic gap. These enzymes convert D-allulose into fermentable sugars that yeast can utilize, enabling the low-calorie benefit of D-allulose while restoring normal proofing performance through enzymatic mediation.
Solution Approach 2:
The patent modifies the chemical parameters of the sugar system by adding specific enzymes that change the metabolic pathway. The composite enzyme preparation alters how D-allulose is processed in the dough, converting it from a non-fermentable sugar into a substrate that supports yeast fermentation and dough rising.
2Quantity of substance
If D-allulose is used to replace sucrose in bread, then the sweetness is maintained at 70% of sucrose, but the yeast activity is inhibited, resulting in slower growth and proliferation
Solution Approach 1:
The composite enzyme preparation acts as a mediator that converts D-allulose into fermentable sugars, thereby maintaining yeast activity despite the presence of D-allulose. The enzymes provide an alternative metabolic pathway that preserves yeast functionality while keeping the overall sweetness at 70% of sucrose.
Solution Approach 2:
The patent uses a composite enzyme preparation containing multiple types of enzymes (invertase, alpha-amylase, glucoamylase) working together to overcome the limitations of D-allulose. This composite enzymatic system provides both the sweetness maintenance and the yeast activity support needed for successful bread making.
3Reliability
If D-allulose is used in bread, then the Maillard reaction products are increased and antioxidant level is maintained longer, but the dough proofing becomes more difficult due to inhibited yeast activity
Solution Approach 1:
The composite enzyme preparation serves as an intermediary that resolves the conflict between enhanced antioxidant stability and compromised proofing. By converting D-allulose into fermentable sugars, the enzymes enable sufficient yeast activity for proper dough rising while allowing D-allulose to simultaneously contribute to improved Maillard reaction and antioxidant properties.
Solution Approach 2:
The patent changes the metabolic parameters of the dough system through enzymatic addition. The composite enzyme preparation modifies how sugars are available to yeast, enabling proofing to proceed at acceptable rates while D-allulose maintains its beneficial effects on antioxidant stability and flavor development.
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 solution ensures proper bread proofing and results in a fluffy, soft, and delicious bread with large pores, maintaining low calorie and low blood sugar response, suitable for health-conscious consumers.
Implementation Method 1
Yeast relies on the monosaccharides formed by the decomposition of sucrose to ferment, producing a large amount of carbon dioxide, which makes the dough expand and form loose, sponge-like pores
Implementation Method 2
it can be decomposed into glucose and fructose by invertase in yeast to provide energy for yeast
Implementation Method 3
D-allulose can react with proteins in food to generate more Maillard products, improve the flavor of food, and maintain the antioxidant level of food for a longer time
Data Source
AI summary
The invention provides a bread with D-allulose instead of sucrose and a preparation method therefor, and relates to the technical field of food processing. The starting materials include, in parts by weight: 40-60 parts of flour, 3-5 parts of gluten powder, 5-10 parts of D-allulose, 5-10 parts of eggs, 5-10 parts of milk, 3-5 parts of yeast, 4-6 parts of butter, 0.4-0.6 parts of composite bacterial powder, and 15-25 parts of water. The yeast is fresh yeast. The composite bacterial powder includes one or more of Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus rhamnosus, Bifidobacterium longum and Bifidobacterium lactis. Replacing sucrose with D-allulose in bread does not affect the normal proofing of bread dough, and the baked bread is fluffy and soft, sweet, and delicious, has good color, aroma, and taste. Because D-allulose has the advantages of low calorie and low blood sugar response, consumers' pursuit of “healthy eating” is met.