Introduction
In the baking industry, Diacetyl Tartaric Acid Esters of Mono- and Diglycerides (DATEM, E472e) is one of the most widely used dough strengthening emulsifiers. By strongly interacting with gluten proteins, it significantly enhances dough elasticity, toughness, and gas retention, thereby increasing bread volume, improving crumb structure, and extending shelf life. However, practical applications of DATEM may encounter various issues. This article systematically reviews common problems and solutions in DATEM applications and provides a comprehensive comparison with other mainstream emulsifiers.
DATEM Core Functions at a Glance
- Dough Strengthening: Fully binds with hydrated gluten strands, making the gluten network stronger while maintaining extensibility and elasticity.
- Volume Increase: Increases bread specific volume by 20%–30%, resulting in a more uniform and finer crumb structure.
- Anti-Staling: Inhibits starch retrogradation, keeping bread soft for more than 3 days.
- Processing Improvement: Enhances dough elasticity, toughness, and gas retention, reducing dough weakening.
Common Problems and Solutions in DATEM Applications
1 Problem 1: Insufficient Bread Volume Increase
Phenomenon: After adding DATEM, bread volume does not meet expectations; specific volume remains low.
Possible Causes:
- Insufficient or excessive DATEM dosage: Optimal addition is typically 0.1%–0.3% of flour weight. Too little fails to fully exert its effect; too much may inhibit gluten network formation.
- Poor flour quality: DATEM functions mainly through interaction with gluten proteins. If flour has low gluten content or poor quality, DATEM alone cannot compensate.
- Improper fermentation conditions: Incorrect temperature, humidity, or time can hinder full gluten network development.
Solutions:
- Optimize dosage: Start at 0.2% of flour weight and adjust according to dough conditions and product requirements. Adding 0.4%–0.5% can significantly increase volume.
- Improve flour quality: DATEM works best with good‑quality flour. If flour quality is suboptimal, combine with enzymes (e.g., amylase, xylanase).
- Adjust fermentation process: Ensure dough ferments under suitable conditions (25–28°C, 75%–80% humidity) to allow sufficient interaction between DATEM and gluten proteins.
2 Problem 2: Poor Dough Handling (Sticky, Difficult to Process)
Phenomenon: Dough is excessively sticky, hard to shape or automate, reducing production efficiency.
Possible Causes:
- Improper ratio of DATEM to other ingredients: When DATEM is used alone, improper water or fat ratios may cause stickiness.
- Insufficient mixing time: DATEM needs adequate mixing with gluten proteins for optimal effect.
Solutions:
- Optimize blend formulations: In commercial baking, DATEM is often blended with SSL. Their synergy strengthens the gluten network, making dough smoother and easier to handle, especially in automated systems.
- Adjust mixing process: Extend mixing time appropriately to ensure DATEM is fully dispersed and combined with gluten proteins. DATEM significantly improves mixing tolerance, making dough less sensitive to mixing time variations.
3 Problem 3: Rapid Staling and Short Shelf Life
Phenomenon: Even with DATEM, bread hardens quickly.
Possible Causes:
- DATEM's limited effect on starch: DATEM's primary strength is interaction with gluten proteins (dough strengthening). Its ability to bind with amylose is relatively weaker. While it does delay staling to some extent, it is less effective than dedicated anti‑staling emulsifiers like GMS.
Solutions:
- Blend with anti‑staling emulsifiers: Combine DATEM with GMS (glycerol monostearate). GMS is specifically used for anti‑staling; it forms complexes with amylose, effectively inhibiting starch retrogradation. The combination achieves both volume increase and extended freshness.
- Synergize with enzymes: Lipase exhibits synergistic effects with DATEM. Studies show that lipase can replace 50% of DATEM while providing better anti‑staling improvement.
4 Problem 4: Uneven Dispersion of DATEM
Phenomenon: DATEM is unevenly distributed in the dough, leading to inconsistent effects.
Possible Causes:
- Incorrect usage method: DATEM is insoluble in cold water. Adding it directly as dry powder may result in poor dispersion.
Solutions:
Use DATEM according to recommended methods:
- Hot water paste method: Add DATEM to warm water (approx. 60°C), stir to form a paste, then add to the dough. This is the most common method.
- Oil dissolution method: Dissolve DATEM together with oils/fats by heating before further processing. Because DATEM is readily soluble in hot oils, this method works best.
- Dry mixing method: Mix DATEM directly with flour. Suitable for large‑scale industrial production
Comprehensive Comparison of DATEM with Competing Emulsifiers
1 Core Function Comparison
| Comparison Aspect | DATEM | SSL | CSL | GMS |
|---|---|---|---|---|
| Core Role | Dough Strengthening "Champion" | Dual‑action "All‑rounder" | Calcium‑fortified "Dough Guardian" | Anti‑staling "Softness Guardian" |
| Primary Target | Gluten protein (strong) | Gluten protein + starch | Gluten protein + starch | Starch (strong) |
| Volume Increase Effect | Best (20%–30% specific volume increase) | Good | Moderate | General |
| Anti‑Staling Effect | Moderate | Good | Good | Best |
| Dough Strengthening | Strongest | Strong | Strong | Weak |
| Recommended Dosage (flour basis) | 0.1%–0.5% | 0.2%–0.5% | 0.2%–0.5% | 0.3%–0.8% |
| HLB Value | 8.0–9.2 | ~8.3 | ~5.1 | ~3.8 |
| Special Feature | Strongest gluten binding; ideal potassium bromate substitute | Good water dispersibility; wide applicability | Provides calcium fortification | Strongest amylose binding |
| Best Application | White bread, toast (maximizing volume) | Steamed/boiled products (steamed buns, noodles) | Baked products with calcium fortification | Products requiring long shelf life |
2 Functional Effect Comparison
- Volume Increase Effect: For maximizing bread volume, DATEM is the best among emulsifiers and an ideal substitute for potassium bromate. When flour quality is good and processing conditions are optimal, bread made with DATEM achieves larger volume than with other emulsifiers. DATEM ranks first among factors affecting bread elasticity and sensory evaluation.
- Anti‑Staling Effect: GMS is the traditional choice for anti‑staling. One study showed DATEM reduces bread hardness from 33.4 N to 23.0 N, outperforming GMS (29.8 N). However, GMS remains the classic dedicated anti‑staling emulsifier due to its strong amylose complexation ability.
- Combined Effects: Blended emulsifiers offer superior overall performance. Practice shows that a 1:1:1 ratio of CSL:SSL:DATEM achieves ideal synergistic baking effects. Compound emulsifiers (CSL/SSL, DATEM, GMS) provide comprehensive benefits including gluten strengthening, emulsion stabilization, anti‑staling, fat reduction, water retention, and preservation.
3 Chemical Properties Comparison
| Property | DATEM | SSL | CSL | GMS |
|---|---|---|---|---|
| Ionic Type | Non‑ionic | Anionic | Anionic | Non‑ionic |
| Water Solubility | Dispersible in hot water | Dispersible in hot water | Slightly soluble in cold water | Insoluble in cold water |
| Solubility | Soluble in hot oils | Dispersible in hot water | Slightly soluble in hot water | Soluble in hot oils |
| Appearance | Off‑white to light yellow powder/granules | Off‑white powder/brittle solid | White to cream powder/flakes | White powder or small cylindrical solid |
| Odor | Slight acetic odor | Slight caramel odor | Pleasant caramel odor | Odorless |
Synergistic Blends of DATEM with Other Emulsifiers
1 DATEM + SSL Blend
The combination of DATEM and SSL is one of the most classic blends in the baking industry. DATEM strengthens the gluten network, while SSL provides dual action on both gluten and starch. Together, they make dough smoother and easier to handle.
Application: Industrial bread production lines, frozen dough. DATEM ranks first and SSL second in factors affecting bread elasticity, making them core components for improving bread quality.
2 DATEM + GMS Blend
DATEM strengthens gluten and increases volume; GMS delays staling and preserves freshness. The combination achieves both "large volume" and "long freshness." In a patented frozen dough improver formulation, DMG and DATEM are used as core emulsifiers.
Application: Long‑shelf‑life bread, frozen dough.
3 DATEM + SSL + CSL Triple Blend
A 1:1:1 ratio of CSL:SSL:DATEM achieves ideal synergistic baking effects. This compound emulsifier system provides multiple functions including gluten strengthening, emulsion stabilization, anti‑staling, and preservation.
Application: Premium bread, steamed bun flour, noodle flour, frozen foods.
4 DATEM + Enzyme Blend
Introducing lipase into the dough system alongside DATEM shows synergistic effects, far superior to adding either alone. Recombinant lipase can replace 50% of DATEM while offering better anti‑staling improvement.
Application: Products pursuing clean labels and reduced chemical additive usage.
Application Recommendations and Selection Guide
| Application Scenario | Recommended Choice | Rationale |
|---|---|---|
| White bread/toast (maximizing volume) | DATEM preferred | DATEM is the "champion" for volume increase (20%–30% higher specific volume) |
| Steamed/boiled products (steamed buns, noodles) | SSL preferred | SSL is more suitable for steamed/boiled products, offering better moisture retention and texture improvement |
| Long‑shelf‑life products | GMS or DATEM+GMS blend | GMS offers the best anti‑staling effect; blend achieves both volume and freshness |
| Calcium‑fortified baked goods | CSL preferred | CSL contains calcium ions, providing additional nutritional fortification |
| High‑speed industrial production lines | DATEM preferred | DATEM enhances dough tolerance, making it less sensitive to processing variations |
| Optimal overall quality | Blend (DATEM+SSL+GMS) | 1:1:1 ratio achieves synergistic effects and best overall performance |
Precautions for Using DATEM
- Dosage control: Recommended addition is 0.1%–0.5% of flour weight. Excessive use not only increases cost but may negatively affect dough.
- Usage conditions: Follow recommended methods, preferably using hot water paste (≥60°C) or oil dissolution to ensure complete dispersion.
- Flour quality: DATEM works best with good‑quality flour. It cannot fully compensate for poor flour.
- Regulatory compliance: DATEM complies with GB 25539‑2010 (China) and is recognized as GRAS by the FDA (21 CFR 184.1101).
- Storage: Store sealed in a cool, dry, well‑ventilated area, protected from moisture and caking.
Conclusion
DATEM is the most widely used dough strengthening emulsifier in the baking industry, offering unparalleled advantages in increasing bread volume. By understanding common issues and solutions, and by scientifically blending with other emulsifiers (SSL, CSL, GMS), manufacturers can fully leverage DATEM's core functions to achieve the comprehensive quality goals of "large volume, good crumb structure, and long freshness."
DATEM acts as the "architect" and "strengthening engineer" of the gluten network, playing a central role in improving dough processing stability and volume. Choosing the appropriate single emulsifier or blend based on product type and quality targets is one of the core technologies for producing high‑quality baked goods.
