CATALEX BIO

Guide to Maltogenic Amylase: Softness Improvement, Anti-Staling Action & Shelf-Life Extension in Baking

Guide to Maltogenic Amylase Enzyme by Catalex Bio

1. Introduction

Enzymes have become the backbone of modern food processing, enabling manufacturers to achieve better quality, greater efficiency, longer shelf life, and cleaner-label formulations. Among the many enzymes used in bakery and cereal-based industries, maltogenic amylase (MA) stands out as one of the most transformative. Unlike traditional amylases that primarily break down starch for sugar release, maltogenic amylase performs a more controlled and specialized action—delaying staling, extending softness, and stabilizing baked goods during storage.

Over the last decade, maltogenic amylase has become a standard ingredient in bread, buns, flatbreads, cakes, tortillas, premixes, and ready-mix flour systems across global industrial bakeries. Its ability to target the root cause of bread staling—starch retrogradation—makes it one of the most valued functional bakery enzymes today. As consumer expectations rise for fresher, softer, longer-lasting bakery products with fewer chemical additives, maltogenic amylase provides manufacturers with an effective, enzyme-based, label-friendly solution.

This blog provides a comprehensive and technically detailed guide to maltogenic amylase, designed specifically for:

  • Commercial bread and bun manufacturers
  • Roti, chapati, tortilla, and flatbread producers
  • Cake, muffin, and sweet baked goods manufacturers
  • Flour mills and premix companies
  • R&D technologists optimizing texture and shelf life
  • Ingredient buyers evaluating anti-staling enzyme solutions

Throughout the article, we maintain a technical yet accessible approach, enabling both R&D teams and procurement managers to make informed decisions.

At Catalex Bio, as a trusted manufacturer and supplier of baking enzymes, we support bakery and cereal processors with high-quality food-grade enzymes, including maltogenic amylases optimized for bread, flatbreads, cakes, premixes, and industrial bakery lines. With reliable supply, global export capability, and technical understanding of bakery processes, our goal is to help manufacturers achieve consistent softness, improved processing performance, and longer shelf-life results.

Let us begin by understanding the fundamentals of this highly specialized enzyme.

2. What Is Maltogenic Amylase?

Maltogenic amylase (MA) is a specialized carbohydrate-hydrolyzing enzyme belonging to the glycoside hydrolase family 13, the same family as α-amylase and pullulanase. However, unlike classical amylases that rapidly break starch into a wide range of dextrins and sugars, maltogenic amylase carries out a controlled, slow, and selective hydrolysis, primarily producing maltose from the non-reducing ends of starch molecules.

This controlled mode of action is the reason behind its extraordinary ability to delay staling and maintain softness in baked goods. MA works at a molecular level by modifying amylopectin side chains, reducing their tendency to recrystallize during storage — the main cause of crumb firming, dryness, and textural aging in bread and flatbreads.

Depending on the production strain and enzyme design, maltogenic amylases can be tailored for different baking systems: high-sugar cakes, lean breads, whole wheat products, and heat-stressed industrial processes like tortillas and chapatis.

In modern bakery processing, maltogenic amylase is often described as a functional bakery enzyme rather than a simple starch-degrading enzyme. This distinction is important. Its purpose is not to increase sugar formation but to enhance texture, extend shelf life, and keep products soft and resilient for longer.

3. History & Evolution

The journey of maltogenic amylase in the baking industry is relatively recent compared to the centuries-long use of traditional amylases. Early versions of the enzyme were studied in the 1970s and 1980s when scientists focused on microbial carbohydrate metabolism. However, its commercial significance became evident only when researchers began linking starch retrogradation to bread staling.

In the 1990s, advancements in industrial biotechnology enabled food-grade production of MA from thermophilic Bacillus strains. This ushered in a major shift in industrial bakery formulations. Manufacturers realized that instead of relying solely on emulsifiers like mono- and diglycerides for softness, an enzyme-based solution could offer clean-label shelf-life extension.

By the early 2000s, maltogenic amylase became a standard anti-staling enzyme in commercial bread manufacturing across Europe, the U.S., and Asia. Over time, improved fermentation processes and strain engineering enhanced its stability, consistency, and performance across a wider temperature and pH range.

Today, maltogenic amylase is considered one of the most impactful bakery enzymes globally, especially for large-scale commercial bread, flatbreads, and RTE flour systems.

4. Mechanism of Action

Understanding how maltogenic amylase works requires looking at what happens to starch inside baked goods during and after baking. Bread staling is not caused by moisture loss alone — the far bigger factor is starch retrogradation, a natural process where gelatinized starch molecules (especially amylopectin) begin to recrystallize as the product cools and ages. This recrystallization causes:

  • The crumb to firm
  • The product to become dry
  • Loss of elasticity and softness
  • Reduced freshness perception

Maltogenic amylase directly targets this mechanism.

How It Works

During mixing, proofing, and early baking stages, maltogenic amylase acts on gelatinizing starch by gently and progressively trimming the non-reducing ends of amylopectin molecules, releasing small amounts of maltose. This trimming action:

  1. Shortens amylopectin side chains
    Shorter chains have significantly lower tendency to recrystallize, slowing retrogradation.
  2. Reduces molecular alignment
    Less alignment → weaker crystallization → slower crumb firming.
  3. Improves water distribution
    Modified starch binds water more effectively, enhancing softness and moisture retention.
  4. Stabilizes the crumb structure
    Prevents drying and maintains resilience and elasticity over several days.
In summary:

Maltogenic amylase extends softness not by adding moisture, but by modifying the molecular behavior of starch, creating a more stable, fresher-tasting product throughout storage.

5. Functional Benefits of Maltogenic Amylase in Food Systems

Maltogenic amylase offers a unique set of functional benefits that make it an essential ingredient in modern bakery and cereal-based food systems. Unlike standard amylases that primarily support fermentation or sweetness generation, maltogenic amylase is valued for its textural, structural, and shelf-life–enhancing properties. Its value lies in how it transforms the behavior of gelatinized starch during cooling, storage, and handling.

Below are the most important functional benefits across bakery and flour-based applications.

A. Delays Staling and Extends Shelf Life

This is the core benefit of maltogenic amylase. By modifying amylopectin side chains, it delays the starch retrogradation process. The result:

  • Softer crumb for several extra days
  • Slower firming rate
  • Reduced drying
  • Improved eating quality during storage

Typical softness extension ranges from 3–7 days, depending on product type and formulation.

B. Enhances Crumb Softness and Texture

MA contributes to a more tender, resilient, and cohesive crumb, especially in:

  • Pan bread
  • Buns and rolls
  • Whole wheat loaves
  • Cakes and muffins

It supports a uniform cell structure, improved mouthfeel, and a more premium sensory profile.

C. Improves Moisture Retention

The modified starch matrix holds water more effectively, leading to:

  • Reduced drying
  • Improved elasticity
  • Sustained freshness perception

This is especially important in flatbreads like roti, chapati, and tortillas which rely heavily on moisture retention.

D. Improves Sliceability and Reduces Crumb Breakage

MA strengthens the crumb structure without making it tough. This results in:

  • Cleaner slicing
  • Reduced crumbling
  • Better machinability on industrial slicers
  • Improved sandwich bread performance
E. Reduces Reliance on Chemical Emulsifiers

Because maltogenic amylase naturally stabilizes crumb texture, many manufacturers can lower or partially replace:

  • Mono- and diglycerides
  • SSL/CSSL
  • Datem

This supports clean-label, cost-optimized formulations with simpler ingredient lists.

F. Enhances Resilience in High-Heat and Industrial Processes

MA performs reliably across different baking systems including:

  • High-speed industrial lines
  • Retarder/proofer systems
  • Frozen dough
  • Hotplate baking (chapati/roti)
  • Continuous tortilla lines

Its heat-stable variants allow activity during early baking stages, delivering consistent performance.

Maltogenic amylase is therefore not just a “softening enzyme”—it is a multifunctional texturizing tool that helps bakers create fresher, softer, longer-lasting products with cleaner labels and improved consumer appeal.

6. Detailed Role of Maltogenic Amylase in Baking

Maltogenic amylase is one of the most influential enzymes in modern bakery science. Its primary role is to optimize texture, softness, resilience, and shelf life in baked goods by controlling starch behavior during and after baking. Because starch constitutes 60–70% of flour, even subtle changes in starch structure have large effects on overall product quality. Maltogenic amylase leverages this principle to deliver highly predictable improvements.

Below is a deep-dive into its various roles across the breadmaking process.

A. During Mixing and Early Fermentation

While MA does not produce significant sugars like α-amylase, it still contributes small amounts of maltose that help:

  • Improve dough handling
  • Support fermentation consistency
  • Enhance dough extensibility
  • Improve gas retention

These benefits are most noticeable in:

  • High-speed industrial dough systems
  • Whole wheat formulations with weaker gluten
  • Doughs with low fermentation tolerance

However, unlike baking amylases, MA is not primarily a fermentation enhancer — its impact here is supportive, not dominant.

B. During Baking

Maltogenic amylase is heat-tolerant enough to remain active during the early stages of baking, before the crumb reaches enzyme-inactivation temperatures. During this window, it performs controlled hydrolysis that determines the final texture.

Key outcomes during baking:
  • Improved oven spring and loaf volume
  • Development of a finer, more uniform crumb structure
  • Generation of a tender, elastic crumb

The enzyme’s action helps weaken overly long amylopectin chains and promotes a stable crumb network.

C. Delaying Starch Retrogradation (Primary Role)

Once baked goods cool, staling begins immediately at the molecular level. Amylopectin molecules start to realign and recrystallize, causing firmness and dryness.

Maltogenic amylase prevents this by:

  • Trimming amylopectin side chains
  • Reducing crystallization potential
  • Keeping starch in a semi-amorphous, flexible state
  • Maintaining water-binding efficiency

This is why breads treated with MA remain soft for 3–7 additional days, depending on formulation and storage.

D. Enhancing Crumb Softness

Because the enzyme modifies starch structure, it creates a softer and more resilient crumb. Benefits include:

  • Improved chewability
  • Reduced toughness
  • A smoother, more uniform texture

These effects are especially valued in:

  • Sandwich breads
  • Buns & rolls
  • Brioche-style breads
  • Toast bread
  • Hotel/industrial pan breads

MA-treated breads often exhibit “freshly baked softness” even after several days.

E. Improving Sliceability and Machinability

A stable, resilient crumb structure means baked goods can withstand mechanical slicing and packaging without crumbling.

This is crucial for:

  • Industrial slicing lines
  • Retail bread manufacturers
  • High-speed bun production
  • Pre-sliced bread and toast loaves

Reduced crumb loss also means higher yield and cleaner production.

F. Contribution to Clean-Label Formulations

In formulations aiming to limit emulsifiers and artificial freshness enhancers, maltogenic amylase is an excellent natural alternative.

It can partially replace:

  • Monoglycerides
  • Datem
  • SSL/CSSL
  • Hydrocolloids

Manufacturers increasingly prefer enzyme-based texturizers due to consumer demand for “clean label” and “enzyme-based freshness.”

G. Performance in High-Stress Baking Conditions

MA maintains effectiveness in:

  • Frozen dough
  • Long fermentation processes
  • High-fiber or whole wheat systems
  • Flatbreads with high surface heat
  • Tortillas baked on hotplates
  • Sweet doughs with high sugar and fat

Formulators value MA because it delivers stable performance under a wide range of processing conditions.

Maltogenic amylase is, therefore, not merely an additive but a functional bakery tool that shapes texture, freshness, eating quality, and overall product performance.

7. Multi-Enzyme Blends in Baking (Maltogenic Amylase With Other Enzymes)

A. MA + Fungal α-Amylase (FAA): Softness + Controlled Sugars

FAA generates fermentable sugars, improves browning, and supports the yeast fermentation curve.
MA, on the other hand, optimizes starch structure for softness and anti-staling.

Synergy:

  • Stable fermentation (FAA) + extended softness (MA)
  • Better loaf volume & finer crumb
  • Improved crust color without over-browning

Typical use cases: pan breads, sweet buns, brioche, soft rolls.

B. MA + Xylanase (Hemicellulase): Softness + Dough Strength

Xylanase weakens arabinoxylans in flour, making dough more extensible and improving gas retention.

Synergy:

  • Higher water absorption
  • Better gas cell expansion → improved oven spring
  • Enhanced crumb resilience and elasticity

Best for: industrial breads, high-speed lines, whole wheat breads.

C. MA + Glucose Oxidase (GOX): Clean-Label Strengthening

GOX reinforces gluten bonds by mild oxidation, acting as a clean-label alternative to chemical oxidizers like ADA or bromates.

Together:

  • GOX provides structure
  • MA keeps the crumb soft over time

This combination gives firmness where needed (gluten matrix) and softness where desired (crumb).

D. MA + Lipase / Phospholipase: Natural Emulsifier Replacement

Lipase modifies endogenous lipids to create natural, dough-friendly emulsifier-like structures.

Synergy with MA:

  • Better crumb symmetry and fineness
  • Enhanced dough stability
  • Reduced or eliminated chemical emulsifiers (DATEM, SSL, mono-/diglycerides)

Ideal for: clean-label, premium breads.

E. MA + Protease: Soft Doughs & Rich Formulations

Low-dose protease improves dough extensibility in stressed systems like:

  • High sugar/high fat doughs (brioche, donuts)
  • Frozen dough
  • Par-baked products

Combining protease with MA prevents toughness during staling.

8. Comparison: Maltogenic Amylase vs Other Amylases

Although maltogenic amylase (MA) belongs to the broad family of amylolytic enzymes, its behavior is distinctly different from commonly used bakery amylases such as fungal α-amylase, bacterial α-amylase, and glucoamylase. Understanding these differences helps bakers, formulators, and millers select the correct enzyme—or combination—for the desired outcome.

A. MA vs Fungal α-Amylase (FAA)

FAA is the most widely used amylase in baking and primarily functions during mixing and proofing. It breaks starch into fermentable sugars for yeast, supports dough relaxation, and improves crust color.

Key differences:

  • FAA works early in the dough stage; MA works mainly during baking and storage.
  • FAA increases sugar availability; MA modifies starch to reduce its tendency to crystallize.
  • FAA improves fermentation and browning; MA improves shelf life and crumb softness.

Practical takeaway:
FAA builds fermentation strength and loaf volume; MA keeps the crumb soft long after baking. They are often used together for balanced performance.

B. MA vs Bacterial α-Amylase (BAA)

BAA is a heat-stable amylase. If overdosed, it can survive baking and produce dextrins that make the crumb sticky or wet.

How MA differs:

  • MA is designed to avoid excessive dextrin production.
  • MA provides controlled, mild hydrolysis ideal for texture stability.
  • BAA is often avoided in soft breads due to the risk of gumminess, while MA is preferred.

Practical takeaway:
For consistent softness and clean crumb structure, MA is far safer.
BAA is generally reserved for specialty uses (liquid bread improvers, certain biscuits), not staple breads.

C. MA vs Glucoamylase (GA)

Glucoamylase hydrolyzes starch all the way to glucose.
It is extremely aggressive and is rarely used alone in baking because it can collapse structure.

How MA differs:

  • MA stops at maltose/dextrins, avoiding full conversion.
  • GA boosts sweetness and fermentation; MA boosts softness and anti-staling.
  • Excess GA can weaken the crumb; MA strengthens the softness curve.

Practical takeaway:
GA is suitable in specialty sweet goods and flavor creation but unsuitable for shelf-life improvement.
MA is the clear solution for anti-staling.

9. Practical Considerations, Formulation Tips & Troubleshooting

Using maltogenic amylase (MA) effectively requires understanding its interaction with flour quality, dough systems, process conditions, and other enzymes. Although MA is forgiving in most formulations, fine-tuning ensures optimal softness and clean crumb structure without overdosing side effects.

A. Flour Quality & Variability

MA performance depends heavily on the flour’s starch and damaged starch content.

Low-damage flour:
MA may need slightly higher dosing because fewer open starch granules are available for action.

High-damage flour:
Responds very well to MA but requires tighter control to avoid excess dextrinization, especially in high-speed industrial settings.

Protein level:
High-protein flours produce firmer crumbs; MA helps compensate by maintaining softness through storage.

B. Dough Systems & Process Considerations

Short fermentation / no-time doughs:
MA helps maintain crumb softness even when fermentation is limited.

Long fermentation / sponge-dough systems:
Usually require lower MA levels since natural enzymatic activity is already higher.

High-speed lines:
Optimal for MA—dough experiences mechanical stress, and MA ensures final crumb uniformity and sliceability.

Frozen dough & retarded systems:
MA protects against dryness after thawing or final baking, but excessive dosing may lead to sticky crumb.

C. Interaction With Ingredients

Sugars & syrups:
High sugar competes with water, slightly reducing MA activity; dosage may need adjustment upward.

Emulsifiers:
DATEM, SSL, and monoglycerides can be reduced or removed when MA is properly optimized.

Hydrocolloids (CMC, guar, xanthan):
Can complement MA by enhancing moisture retention, especially in premium breads and cakes.

D. Signs of Under-Dosing
  • Crumb firms quickly within 24–48 hours
  • Short shelf life
  • Dry mouthfeel
  • Low resilience and poor sliceability in packaged bread
  • Loss of rollability in tortillas or chapati
E. Signs of Over-Dosing
  • Sticky or gummy crumb
  • Compressed internal structure
  • Excessive moistness or “wet” mouthfeel
  • Darker crust due to increased dextrins
  • Tortillas becoming overly flexible and fragile
F. How to Optimize in a New Formula
  1. Start with a low dosage appropriate to product type.
  2. Evaluate softness on day 0, day 3, and day 7.
  3. Adjust in small increments—MA is highly potent.
  4. Pair MA with α-amylase, xylanase, lipase, or GOX depending on product goals.
  5. Reassess water absorption—MA can subtly influence dough consistency.

10. Conclusion — The Strategic Value of Maltogenic Amylase in Modern Baking

Maltogenic amylase has evolved from a niche bakery enzyme into one of the most powerful functional tools for modern baking science. Its unique ability to delay staling, enhance softness, and improve crumb resilience makes it indispensable across commercial bread, flatbreads, cakes, muffins, tortillas, and industrial premixes. Unlike conventional α-amylases, maltogenic amylase works through controlled, slow hydrolysis—producing short-chain dextrins that maintain elasticity, moisture, and tenderness long after baking.

For bakeries, flour millers, R&D teams, and food technologists, MA is more than an ingredient; it is a performance enabler. It helps reduce reliance on emulsifiers, stabilizers, and chemical additives, opening the door to cleaner labels and more natural formulations. Whether used alone or in combination with glucose oxidase, xylanase, or lipase, maltogenic amylase provides consistent and measurable improvements in volume, texture, shelf life, and processing tolerance.

As consumer demand shifts toward soft, fresher-tasting baked goods with extended shelf life, MA will only grow stronger in relevance. Innovations in thermostability, whole-grain optimization, and multifunctional enzyme platforms will further expand its potential across global bakery formats—from sandwich breads to regional staples like roti, chapati, and tortillas.

At Catalex Bio, as a reliable bakery enzymes manufacturer and bakery enzyme supplier, we support bakeries, flour mills, and food manufacturers with high-quality, application-ready maltogenic amylase solutions. Our focus on consistent supply, technical support, and export-ready compliance ensures reliable integration into both artisanal and industrial systems.

If you’re developing new bakery formulations, improving existing ones, or exploring clean-label transitions, Catalex Bio can help you choose the right MA solution tailored to your process.
Connect with us to explore our maltogenic amylase portfolio or request technical guidance for your application.

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