Page 50 - FoodFocusThailand No.243 July 2026

STRATEGIC R & D

Similarly, bacteriocins such as nisin are highly effective Consequently, many current industrial strategies involve
against many Gram-positive microorganisms, including Listeria combinations of natural antioxidants, fermentation systems,
monocytogenes, but exhibit limited activity against Gram- protective cultures, modified packaging, and stricter cold chain
negative bacteria unless combined with other hurdles. This is management. This transition also increases the importance of
particularly relevant for chilled ready meals, processed meat predictive microbiology and shelf-life modeling.
products, sauces, dairy products, and plant-based foods, where
microbial ecosystems are highly complex. The Economics of Clean Label Preservation
A review in Foods discussing natural preservatives in Another important reality is that clean label preservation often
meat systems emphasized that real-world food applications comes at a higher cost than conventional synthetic preservation
often show substantially different antimicrobial performance systems. This is because maintaining product safety and shelf
compared with simplified laboratory studies. life without relying on traditional preservatives typically requires a
For industrial R&D teams, this means the question is no combination of higher ingredient dosages, costlier raw materials,
longer: “Which natural preservative should we use?” but rather: stricter manufacturing controls, improved sanitation programs,
“How should the entire preservation system be redesigned?” more effective packaging technologies, and rigorous cold
chain management across the supply chain. In some cases,
From Single Ingredients to Hurdle Technology manufacturers may even need to shorten declared shelf-life,
The future of clean label preservation is unlikely to rely on a reduce distribution radius, or redesign logistics systems.
single “magic ingredient.” Instead, the industry is increasingly As a result, clean label preservation should not be viewed
adopting multi-hurdle preservation systems. The concept of merely as an ingredient substitution project. It is frequently
hurdle technology, originally developed by Leistner, is becoming an operational transformation project affecting the entire food
even more important in the clean label era. Modern clean production ecosystem. This is particularly relevant for Southeast
label preservation systems typically combine several factors Asian markets, where high ambient temperatures and complex
simultaneously: distribution channels create additional preservation challenges
• reduced pH, compared with Europe or North America.
• water activity control,
• modified atmosphere packaging (MAP), Where the Industry Is Heading Next
• chilled distribution, Looking forward, several emerging technologies are expected
• fermentation-derived antimicrobials, to shape the future of clean label preservation.
• thermal processing optimization, 1. Precision Fermentation: increasingly being explored for
• and packaging innovations. the production of highly targeted antimicrobial compounds and
This multi-factor approach allows manufacturers to reduce bioactive peptides with improved consistency compared with
dependence on high levels of conventional preservatives while traditional natural extracts.
maintaining microbial safety. Among currently commercialized 2. Protective Cultures and Biopreservation: protective
clean label solutions, fermentation-derived ingredients are microbial cultures capable of suppressing spoilage organisms
gaining particularly strong momentum. These include cultured through competitive exclusion are receiving growing commercial
dextrose, fermented wheat flour, vinegar-based systems, and attention, particularly in dairy and chilled foods.
microbial fermentates. Fermentation-derived systems are 3. Active Packaging: Antimicrobial packaging systems
attractive because they often provide broader antimicrobial incorporating oxygen scavengers, antimicrobial coatings, or
activity, have a milder sensory impact, and integrate more controlled-release compounds are also expanding rapidly.
easily into existing industrial processes. 4. AI-Assisted Shelf-Life Modeling: Artificial intelligence
However, the efficacy of these preservation systems and predictive microbiology tools are increasingly being
remains highly product-dependent. High-protein foods, integrated into shelf-life development programs to improve
emulsified meat products, high-fat sauces, and high-moisture formulation optimization and reduce development time.
plant-based foods, for instance, continue to pose significant The clean label movement is transforming food preservation
technical challenges due to their complex physicochemical from simply removing additives to redesigning the entire food
environments. protection system. Success requires an integrated approach
spanning ingredients, processing, packaging, supply chains,
Meat Products Remain One of the and regulatory compliance while maintaining product quality
Hardest Categories and consumer trust. Above all, food safety must never be
Among all food categories, processed meat products remain compromised.
one of the most technically difficult areas for clean label
preservation. In particular, the processed meat containing
nitrite as an agent for inhibition of Clostridium botulinum,
cured meat color development, flavor stabilization, and lipid
oxidation control. More Information Service Info C008
Replacing nitrite therefore requires solving several
technological problems at once. Nitrite replacement remains เอกสารอ้างอิง / References
• International Food Information Council (IFIC) Food & Health Survey
one of the most difficult unresolved challenges in meat science • U.S. FDA – Use of the Term “Natural” on Food Labeling
because no single natural alternative currently reproduces all • European Food Safety Authority (EFSA)
nitrite functionalities simultaneously This explains why the meat • Foods Journal (MDPI) – Natural Preservatives in Meat Products
industry increasingly focuses on partial reduction strategies • Kerry Group – Clean Label Preservation Solutions
and multi-hurdle systems rather than complete elimination. • Comprehensive Reviews in Food Science and Food Safety – Nitrite
Alternatives in Meat Products
50 FOOD FOCUS THAILAND JUL 2026 • Thailand Food and Drug Administration (Thai FDA)

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